L4931ABD15-TR中文资料

April 2008Rev 151/38

L4931ABxx L4931Cxx

Very low drop voltage regulators with inhibit

Features

■Very low dropout voltage (0.4 V)■Very low quiescent current

■(Typ. 50 μA in off mode, 600 μA in on mode)■Output current up to 250 mA ■Logic-controlled electronic shutdown

■Output voltages of 2.5; 2.7; 3.3; 3.5; 5; 8; 12 V ■Automotive Grade product: 2.7 V, 3.3 V, 3.5 V V OUT only in SO-8 package ■Internal current and thermal limit ■Only 2.2 μF for stability

■Available in ± 1 % (AB) or 2 % (C) selection at 25 °C

■Supply voltage rejection: 70 dB typ. for 5 V version

■

Temperature range: -40 to 125 °C

Description

The L4931ABxx L4931Cxx are very Low Drop regulators available in TO-220, SO-8, DPAK,

PPAK and TO-92 packages and in a wide range of output voltages.

The very low drop voltage (0.4 V) and the very low quiescent current make them particularly suitable for low noise, low power applications and specially in battery powered systems.

A TTL compatible shutdown logic control function is available in PPAK and SO-8 packages.

This means that when the device is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. It requires only a 2.2 μF capacitor for stability allowing space and cost saving.The L4931 is available as Automotive Grade in SO-8 package only, for the options of output voltages whose commercial Part Numbers are shown in the Table 21 on page 36 (order codes). These devices are qualified according to the specification AEC-Q100 of the Automotive market, in the temperature range -40 °C to

125 °C, and the statistical tests PAT , SYL, SBL are performed.

SO-8

Table 1.

Device summary

Part number

L4931ABXX25L4931ABXX33L4931ABXX50L4931ABXX120L4931CXX25L4931CXX33L4931CXX50L4931CXX120

L4931ABXX27L4931ABXX35L4931ABXX80L4931CXX27

L4931CXX35

L4931CXX80

https://www.wendangku.net/doc/236606801.html,

Contents L4931ABxx - L4931Cxx Contents

1Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 7Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 8Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 9Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

2/38

L4931ABxx - L4931Cxx List of figures List of figures

Figure 1.Schematic diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 2.Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 3.Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 4.Line regulation vs temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Figure 5.Dropout voltage vs temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Figure 6.Supply current vs input voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Figure 7.Supply current vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Figure 8.Short circuit current vs dropout voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Figure 9.SVR vs input voltage signal frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3/38

List of tables L4931ABxx - L4931Cxx List of tables

Table 1.Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table 2.Absolute maximum ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 3.Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 4.Electrical characteristics of L4931ABxx25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Table 5.Electrical characteristics of L4931Cxx25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Table 6.Electrical characteristics of L4931ABxx27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Table 7.Electrical characteristics of L4931Cxx27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Table 8.Electrical characteristics of L4931Cxx27-TRY (Automotive Grade). . . . . . . . . . . . . . . . . . 13 Table 9.Electrical characteristics of L4931ABxx33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Table 10.Electrical characteristics of L4931Cxx33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Table 11.Electrical characteristics of L4931Cxx33-TRY (Automotive Grade). . . . . . . . . . . . . . . . . . 16 Table 12.Electrical characteristics of L4931ABxx35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Table 13.Electrical characteristics of L4931ABxx35-TRY (Automotive Grade). . . . . . . . . . . . . . . . . 18 Table 14.Electrical characteristics of L4931Cxx35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Table 15.Electrical characteristics of L4931ABxx50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Table 16.Electrical characteristics of L4931Cxx50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Table 17.Electrical characteristics of L4931ABxx80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Table 18.Electrical characteristics of L4931Cxx80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Table 19.Electrical characteristics of L4931ABxx120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Table 20.Electrical characteristics of L4931Cxx120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Table 21.Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Table 22.Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 4/38

L4931ABxx - L4931Cxx Diagram 1 Diagram

5/38

Pin configuration L4931ABxx - L4931Cxx 2 Pin configuration

6/38

L4931ABxx - L4931Cxx

Maximum ratings

7/38

3 Maximum ratings

Note:

Absolute maximum ratings are those values beyond which damage to the device may occur.

Functional operation under these condition is not implied Table 2.

Absolute maximum ratings

Symbol Parameter

Value Unit V I DC Input voltage 20

V I O Output current Internally limited mA P D Power dissipation

Internally limited mW T STG Storage temperature range

-40 to 150°C T OP

Operating junction temperature range

-40 to 125

°C

Table 3.

Thermal data

Symbol Parameter

TO-220SO-8DPAK PPAK TO-92

Unit R thJC Thermal resistance junction-case 32088°C/W R thJA

Thermal resistance junction-ambient

50

55

100

100

200°C/W

Application circuit L4931ABxx - L4931Cxx 4 Application circuit

8/38

L4931ABxx - L4931Cxx

Electrical characteristics

9/38

5 Electrical characteristics

Table 4.

Electrical characteristics of L4931ABxx25 (refer to the test circuits, T A = 25 °C,

C I = 0.1 μF , C O = 2.2 μF unless otherwise specified).

Symbol Parameter

Test conditions

Min.Typ.Max.Unit V O Output voltage I O = 5 mA, V I = 4.5 V

2.475 2.5

2.525V I O = 5 mA, V I = 4.5 V , T A =-25 to 85°C 2.45

2.55V I Operating input voltage I O = 250 mA

20

V I out Output current limit 300mA ΔV O Line regulation V I = 3.2 to 20 V , I O = 0.5 mA 315mV ΔV O

Load regulation (1)1.For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

V I = 3.4 V , I O = 0.5 to 250 mA 315mV I d

Quiescent current ON MODE V I = 3.4 to 20 V , I O = 0 mA 0.61mA V I = 3.4 to 20 V , I O = 250 mA 46OFF MODE

V I = 6 V

50100

μA

SVR Supply voltage rejection I O = 5 mA V I = 4.4 ± 1 V

f = 120 Hz

75dB

f = 1 kHz 72f = 10 kHz

55eN Output noise voltage B = 10 Hz to 100 kHz 50μV V d Dropout voltage (1)I O = 250 mA

0.4

0.6V I O = 250 mA, T A = -40 to 125°C 0.8V V IL Control input logic low T A = -40 to 125°C 0.8

V V IH Control Input Logic High T A = -40 to 125°C 2

V I I Control input current V I = 6 V , V C = 6 V

10

μA C O

Output bypass capacitance

ESR = 0.1 to 10 Ω, I O = 0 to 250 mA

2

10

μF

Electrical characteristics

L4931ABxx - L4931Cxx

10/38

Table 5.

Electrical characteristics of L4931Cxx25 (refer to the test circuits, T A = 25 °C, C I = 0.1 μF , C O = 2.2 μF unless otherwise specified).

Symbol Parameter

Test conditions

Min.Typ.Max.Unit V O Output voltage I O = 5 mA, V I = 4.5 V

2.45 2.5

2.55V I O = 5 mA, V I = 4.5 V , T A =-25 to 85°C 2.4

2.6V I Operating input voltage I O = 250 mA

20

V I out Output current limit 300mA ΔV O Line regulation V I = 3.3 to 20 V , I O = 0.5 mA 318mV ΔV O

Load regulation (1)V I = 3.5 V , I O = 0.5 to 250 mA 318mV I d

Quiescent current ON MODE V I = 3.5 to 20 V , I O = 0 mA 0.61mA V I = 3.5 to 20 V , I O = 250 mA 46OFF MODE

V I = 6 V

50100

μA

SVR Supply voltage rejection I O = 5 mA V I = 4.4 ± 1 V

f = 120 Hz

75dB

f = 1 kHz 72f = 10 kHz

55eN Output noise voltage B = 10 Hz to 100 kHz 50μV V d Dropout voltage (1)I O = 250 mA

0.4

0.6V I O = 250 mA, T A = -40 to 125°C 0.8V V IL Control input logic low T A = -40 to 125°C 0.8

V V IH Control Input Logic High T A = -40 to 125°C 2

V I I Control input current V I = 6 V , V C = 6 V

10

μA C O

Output bypass capacitance

ESR = 0.1 to 10 Ω, I O = 0 to 250 mA

2

10

μF 1.For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

L4931ABxx - L4931Cxx

Electrical characteristics

11/38

Table 6.

Electrical characteristics of L4931ABxx27 (refer to the test circuits, T A = 25 °C, C I = 0.1 μF , C O = 2.2 μF unless otherwise specified).

Symbol Parameter

Test conditions

Min.Typ.Max.Unit V O Output voltage I O = 5 mA, V I = 4.7 V

2.673 2.7

2.727V I O = 5 mA, V I = 4.7 V , T A =-25 to 85°C 2.646

2.754V I Operating input voltage I O = 250 mA

20

V I out Output current limit 300mA ΔV O Line regulation V I = 3.4 to 20 V , I O = 0.5 mA 315mV ΔV O

Load regulation (1)V I = 3.6 V , I O = 0.5 to 250 mA 315mV I d

Quiescent current ON MODE V I = 3.6 to 20 V , I O = 0 mA 0.61mA V I = 3.6 to 20 V , I O = 250 mA 46OFF MODE

V I = 6 V

50100

μA

SVR Supply voltage rejection I O = 5 mA V I = 4.6 ± 1 V

f = 120 Hz

74dB

f = 1 kHz 71f = 10 kHz

55eN Output noise voltage B = 10 Hz to 100 kHz 50μV V d Dropout voltage (1)I O = 250 mA

0.4

0.6V I O = 250 mA, T A = -40 to 125°C 0.8V V IL Control input logic low T A = -40 to 125°C 0.8

V V IH Control Input Logic High T A = -40 to 125°C 2

V I I Control input current V I = 6 V , V C = 6 V

10

μA C O

Output bypass capacitance

ESR = 0.1 to 10 Ω, I O = 0 to 250 mA

2

10

μF 1.For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

Electrical characteristics

L4931ABxx - L4931Cxx

12/38

Table 7.

Electrical characteristics of L4931Cxx27 (refer to the test circuits, T A = 25 °C, C I = 0.1 μF , C O = 2.2 μF unless otherwise specified).

Symbol Parameter

Test conditions

Min.Typ.Max.Unit V O Output voltage I O = 5 mA, V I = 4.7 V

2.646 2.7

2.754V I O = 5 mA, V I = 4.7 V , T A =-25 to 85°C 2.592

2.808V I Operating input voltage I O = 250 mA

20

V I out Output current limit 300mA ΔV O Line regulation V I = 3.4 to 20 V , I O = 0.5 mA 318mV ΔV O

Load regulation (1)V I = 3.6 V , I O = 0.5 to 250 mA 318mV I d

Quiescent current ON MODE V I = 3.6 to 20 V , I O = 0 mA 0.61mA V I = 3.6 to 20 V , I O = 250 mA 46OFF MODE

V I = 6 V

50100

μA

SVR Supply voltage rejection I O = 5 mA V I = 4.6 ± 1 V

f = 120 Hz

74dB

f = 1 kHz 71f = 10 kHz

55eN Output noise voltage B = 10 Hz to 100 kHz 50μV V d Dropout voltage (1)I O = 250 mA

0.4

0.6V I O = 250 mA, T A = -40 to 125°C 0.8V V IL Control input logic low T A = -40 to 125°C 0.8

V V IH Control Input Logic High T A = -40 to 125°C 2

V I I Control input current V I = 6 V , V C = 6 V

10

μA C O

Output bypass capacitance

ESR = 0.1 to 10 Ω, I O = 0 to 250 mA

2

10

μF 1.For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

L4931ABxx - L4931Cxx

Electrical characteristics

13/38

Table 8.

Electrical characteristics of L4931Cxx27-TRY (Automotive Grade) (refer to the test circuits, T A = -40 to 12 5°C, C I = 0.1 μF , C O = 2.2 μF unless otherwise specified).

Symbol Parameter

Test conditions

Min.Typ.Max.Unit V O Output voltage I O = 5 mA, V I = 4.7 V , T A = 25°C 2.646 2.7

2.754V I O = 5 mA, V I = 4.7 V 2.592

2.808V I Operating input voltage I O = 250 mA 20

V I out Output current limit T A = 25°C

300

mA ΔV O Line regulation V I = 3.4 to 20 V , I O = 0.5 mA 20mV ΔV O

Load regulation V I = 3.6 V , I O = 0.5 to 250 mA 38mV I d

Quiescent current ON MODE V I = 3.6 to 20 V , I O = 0 mA 1mA V I = 3.6 to 20 V , I O = 250 mA 6OFF MODE

V I = 6 V 100

μA

SVR Supply voltage rejection

I O = 5 mA V I = 4.6 ± 1 V T A = 25°C

f = 120 Hz 74dB

f = 1 kHz 71f = 10 kHz

55eN Output noise voltage B = 10 Hz to 100 kHz, T A = 25°C 50μV V d Dropout voltage I O = 250 mA, T A = 25°C 0.4

0.6V I O = 250 mA

0.82V V IL Control input logic low 0.82

V V IH Control Input Logic High 2

V I I Control input current V I = 6 V , V C = 6 V , T A = 25°C 10μA C O

Output bypass capacitance

ESR = 0.1 to 10 Ω, I O = 0 to 250 mA, T A = 25°C

2

10

μF

Electrical characteristics

L4931ABxx - L4931Cxx

14/38

Table 9.

Electrical characteristics of L4931ABxx33 (refer to the test circuits, T A = 25 °C, C I = 0.1 μF , C O = 2.2 μF unless otherwise specified).

Symbol Parameter

Test conditions

Min.Typ.Max.Unit V O Output voltage I O = 5 mA, V I = 5.3 V

3.267 3.3

3.333V I O = 5 mA, V I = 5.3 V , T A =-25 to 85°C 3.234

3.366V I Operating input voltage I O = 250 mA

20

V I out Output current limit 300mA ΔV O Line regulation V I = 4 to 20 V , I O = 0.5 mA 315mV ΔV O

Load regulation (1)V I = 4.2 V , I O = 0.5 to 250 mA 315mV I d

Quiescent current ON MODE V I = 4.2 to 20 V , I O = 0 mA 0.61mA V I = 4.2 to 20 V , I O = 250 mA 46OFF MODE

V I = 6 V

50100

μA

SVR Supply voltage rejection I O = 5 mA V I = 5.2 ± 1 V

f = 120 Hz

73dB

f = 1 kHz 70f = 10 kHz

55eN Output noise voltage B = 10 Hz to 100 kHz 50μV V d Dropout voltage (1)I O = 250 mA

0.4

0.6V I O = 250 mA, T A = -40 to 125°C 0.8V V IL Control input logic low T A = -40 to 125°C 0.8

V V IH Control Input Logic High T A = -40 to 125°C 2

V I I Control input current V I = 6 V , V C = 6 V

10

μA C O

Output bypass capacitance

ESR = 0.1 to 10 Ω, I O = 0 to 250 mA

2

10

μF 1.For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

L4931ABxx - L4931Cxx

Electrical characteristics

15/38

Table 10.

Electrical characteristics of L4931Cxx33 (refer to the test circuits, T A = 25 °C, C I = 0.1 μF , C O = 2.2 μF unless otherwise specified).

Symbol Parameter

Test conditions

Min.Typ.Max.Unit V O Output voltage I O = 5 mA, V I = 5.3 V

3.234 3.3

3.366V I O = 5 mA, V I = 5.3 V , T A =-25 to 85°C 3.168

3.432V I Operating input voltage I O = 250 mA

20

V I out Output current limit 300mA ΔV O Line regulation V I = 4.1 to 20 V , I O = 0.5 mA 318mV ΔV O

Load regulation (1)V I = 4.3 V , I O = 0.5 to 250 mA 318mV I d

Quiescent current ON MODE V I = 4.3 to 20 V , I O = 0 mA 0.61mA V I = 4.3 to 20 V , I O = 250 mA 46OFF MODE

V I = 6 V

50100

μA

SVR Supply voltage rejection I O = 5 mA V I = 5.3 ± 1 V

f = 120 Hz

73dB

f = 1 kHz 70f = 10 kHz

55eN Output noise voltage B = 10 Hz to 100 kHz 50μV V d Dropout voltage (1)I O = 250 mA

0.4

0.6V I O = 250 mA, T A = -40 to 125°C 0.8V V IL Control input logic low T A = -40 to 125°C 0.8

V V IH Control Input Logic High T A = -40 to 125°C 2

V I I Control input current V I = 6 V , V C = 6 V

10

μA C O

Output bypass capacitance

ESR = 0.1 to 10 Ω, I O = 0 to 250 mA

2

10

μF 1.For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

Electrical characteristics

L4931ABxx - L4931Cxx

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Table 11.

Electrical characteristics of L4931Cxx33-TRY (Automotive Grade) (refer to the test circuits, T A = -40 to 125 °C, C I = 0.1 μF , C O = 2.2 μF unless otherwise specified).

Symbol Parameter

Test conditions

Min.Typ.Max.Unit V O Output voltage I O = 5 mA, V I = 5.3 V , T A = 25°C 3.234 3.3

3.366V I O = 5 mA, V I = 5.3 V 3.168

3.432V I Operating input voltage I O = 250 mA 20

V I out Output current limit T A = 25°C

300

mA ΔV O Line regulation V I = 4.1 to 20 V , I O = 0.5 mA 20mV ΔV O

Load regulation V I = 4.3 V , I O = 0.5 to 250 mA 38mV I d

Quiescent current ON MODE V I = 4.3 to 20 V , I O = 0 mA 1mA V I = 4.3 to 20 V , I O = 250 mA 6OFF MODE

V I = 6 V 100

μA

SVR Supply voltage rejection

I O = 5 mA V I = 5.3 ± 1 V T A = 25°C

f = 120 Hz 73dB

f = 1 kHz 70f = 10 kHz

55eN Output noise voltage B = 10 Hz to 100 kHz, T A = 25°C 50μV V d Dropout voltage I O = 250 mA, T A = 25°C 0.4

0.6V I O = 250 mA

0.82V V IL Control input logic low 0.82

V V IH Control Input Logic High 2

V I I Control input current V I = 6 V , V C = 6 V , T A = 25°C 10μA C O

Output bypass capacitance

ESR = 0.1 to 10 Ω, I O = 0 to 250 mA,T A = 25°C

2

10

μF

L4931ABxx - L4931Cxx

Electrical characteristics

17/38

Table 12.

Electrical characteristics of L4931ABxx35 (refer to the test circuits, T A = 25 °C, C I = 0.1 μF , C O = 2.2 μF unless otherwise specified).

Symbol Parameter

Test conditions

Min.Typ.Max.Unit V O Output voltage I O = 5 mA, V I = 5.5 V

3.465 3.5

3.535V I O = 5 mA, V I = 5.5 V , T A =-25 to 85°C 3.43

3.57V I Operating input voltage I O = 250 mA

20

V I out Output current limit 300mA ΔV O Line regulation V I = 4.2 to 20 V , I O = 0.5 mA 315mV ΔV O

Load regulation (1)V I = 4.4 V , I O = 0.5 to 250 mA 315mV I d

Quiescent current ON MODE V I = 4.4 to 20 V , I O = 0 mA 0.61mA V I = 4.4 to 20 V , I O = 250 mA 46OFF MODE

V I = 6 V

50100

μA

SVR Supply voltage rejection I O = 5 mA V I = 5.4 ± 1 V

f = 120 Hz

73dB

f = 1 kHz 70f = 10 kHz

55eN Output noise voltage B = 10 Hz to 100 kHz 50μV V d Dropout voltage (1)I O = 250 mA

0.4

0.6V I O = 250 mA, T A = -40 to 125°C 0.8V V IL Control input logic low T A = -40 to 125°C 0.8

V V IH Control Input Logic High T A = -40 to 125°C 2

V I I Control input current V I = 6 V , V C = 6 V

10

μA C O

Output bypass capacitance

ESR = 0.1 to 10 Ω, I O = 0 to 250 mA

2

10

μF 1.For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

Electrical characteristics

L4931ABxx - L4931Cxx

18/38

Table 13.

Electrical characteristics of L4931ABxx35-TRY (Automotive Grade) (refer to the test circuits, T A = -40 to 125 °C, C I = 0.1 μF , C O = 2.2 μF unless otherwise specified).

Symbol Parameter

Test conditions

Min.Typ.Max.Unit V O Output voltage I O = 5 mA, V I = 5.5 V , T A = 25°C 3.465 3.5

3.535V I O = 5 mA, V I = 5.5 V 3.43

3.57V I Operating input voltage I O = 250 mA 20

V I out Output current limit T A = 25°C

300

mA ΔV O Line regulation V I = 4.2 to 20 V , I O = 0.5 mA 17mV ΔV O

Load regulation V I = 4.4 V , I O = 0.5 to 250 mA 35mV I d

Quiescent current ON MODE V I = 4.4 to 20 V , I O = 0 mA 1mA V I = 4.4 to 20 V , I O = 250 mA 6OFF MODE

V I = 6 V 100

μA

SVR Supply voltage rejection

I O = 5 mA V I = 5.4 ± 1 V T A = 25°C

f = 120 Hz 73dB

f = 1 kHz 70f = 10 kHz

55eN Output noise voltage B = 10 Hz to 100 kHz, T A = 25°C 50μV V d Dropout voltage I O = 250 mA, T A = 25°C 0.4

0.6V I O = 250 mA

0.82V V IL Control input logic low 0.82

V V IH Control Input Logic High 2

V I I Control input current V I = 6 V , V C = 6 V , T A = 25°C 10μA C O

Output bypass capacitance

ESR = 0.1 to 10 Ω, I O = 0 to 250 mA,T A = 25°C

2

10

μF

L4931ABxx - L4931Cxx

Electrical characteristics

19/38

Table 14.

Electrical characteristics of L4931Cxx35 (refer to the test circuits, T A = 25 °C, C I = 0.1 μF , C O = 2.2 μF unless otherwise specified).

Symbol Parameter

Test conditions

Min.Typ.Max.Unit V O Output voltage I O = 5 mA, V I = 5.5 V

3.43 3.5

3.57V I O = 5 mA, V I = 5.5 V , T A =-25 to 85°C 3.36

3.64V I Operating input voltage I O = 250 mA

20

V I out Output current limit 300mA ΔV O Line regulation V I = 4.3 to 20 V , I O = 0.5 mA 318mV ΔV O

Load regulation (1)V I = 4.5 V , I O = 0.5 to 250 mA 318mV I d

Quiescent current ON MODE V I = 4.5 to 20 V , I O = 0 mA 0.61mA V I = 4.5 to 20 V , I O = 250 mA 46OFF MODE

V I = 6 V

50100

μA

SVR Supply voltage rejection I O = 5 mA V I = 5.5 ± 1 V

f = 120 Hz

73dB

f = 1 kHz 70f = 10 kHz

55eN Output noise voltage B = 10 Hz to 100 kHz 50μV V d Dropout voltage (1)I O = 250 mA

0.4

0.6V I O = 250 mA, T A = -40 to 125°C 0.8V V IL Control input logic low T A = -40 to 125°C 0.8

V V IH Control Input Logic High T A = -40 to 125°C 2

V I I Control input current V I = 6 V , V C = 6 V

10

μA C O

Output bypass capacitance

ESR = 0.1 to 10 Ω, I O = 0 to 250 mA

2

10

μF 1.For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

Electrical characteristics

L4931ABxx - L4931Cxx

20/38

Table 15.

Electrical characteristics of L4931ABxx50 (refer to the test circuits, T A = 25 °C, C I = 0.1 μF , C O = 2.2 μF unless otherwise specified).

Symbol Parameter

Test conditions

Min.Typ.Max.Unit V O Output voltage I O = 5 mA, V I = 7 V

4.955

5.05V I O = 5 mA, V I = 7 V , T A =-25 to 85°C 4.9

5.1V I Operating input voltage I O = 250 mA

20

V I out Output current limit 300mA ΔV O Line regulation V I = 5.8 to 20 V , I O = 0.5 mA 3.517.5mV ΔV O

Load regulation (1)V I = 6 V , I O = 0.5 to 250 mA 315mV I d

Quiescent current ON MODE V I = 6 to 20 V , I O = 0 mA 0.61mA V I = 6 to 20 V , I O = 250 mA 46OFF MODE

V I = 6 V

50100

μA

SVR Supply voltage rejection I O = 5 mA V I = 7 ± 1 V

f = 120 Hz

70dB

f = 1 kHz 67f = 10 kHz

55eN Output noise voltage B = 10 Hz to 100 kHz 50μV V d Dropout voltage (1)I O = 250 mA

0.4

0.6V I O = 250 mA, T A = -40 to 125°C 0.8V V IL Control input logic low T A = -40 to 125°C 0.8

V V IH Control Input Logic High T A = -40 to 125°C 2

V I I Control input current V I = 6 V , V C = 6 V

10

μA C O

Output bypass capacitance

ESR = 0.1 to 10 Ω, I O = 0 to 250 mA

2

10

μF 1.For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.