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MAX15006中文资料

General Description

The MAX15006/MAX15007 ultra-low quiescent-current linear regulators are ideal for use in automotive and battery-operated systems. These devices operate from an input voltage of 4V to 40V, deliver up to 50mA of out-put current, and consume only 10μA of quiescent cur-rent at no load. The internal p-channel pass device keeps the quiescent current low even at full load. The MAX15007 consumes only 3μA current when in shut-down.

The MAX15006A/MAX15007A have a fixed 3.3V output while the MAX15006B/MAX15007B have a fixed 5V out-put voltage. The MAX15007 includes an enable input to turn the device on or off. All devices are short-circuit protected and include thermal shutdown.

The MAX15006/MAX15007 operate over the -40°C to +125°C automotive temperature range. These devices are available in space-saving 3mm x 3mm 6-pin TDFN and 8-pin SO thermally enhanced packages.

Applications

Automotive

Tire-Pressure Monitoring Industrial Telecom Networking

Features

o Wide Operating Input Voltage Range (4V to 40V)o Guaranteed 50mA Output Current o Low Quiescent Current

10μA (No Load) and 90μA (Full Load)o Operates Through Cold-Crank Condition o Withstands 45V Load Dump o Low Dropout Voltage of 300mV (MAX15006B/MAX15007B)

o Stable Operation with Tiny 2.2μF Output Capacitor

o Enable Input (MAX15007)

o Preset 3.3V and 5.0V Output Voltages o Thermal and Short-Circuit Protection

o -40°C to +125°C Operating Temperature Range o Thermally Enhanced 3mm x 3mm 6-Pin TDFN/8-Pin SO Packages

MAX15006/MAX15007

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

________________________________________________________________Maxim Integrated Products

1

MAX15006中文资料

MAX15006中文资料

Pin Configurations

19-0663; Rev 0; 10/06

For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at http://www.wendangku.net/doc/b5ff16cc2cc58bd63186bd9a.html.

Ordering Information

Ordering Information continued at end of data sheet.

Note: All devices are specified over the -40°C to +125°C oper-ating temperature range.

+Denotes lead-free package.*EP = Exposed pad.

M A X 15006/M A X 15007

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO 2_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(V

MAX15006中文资料

= 14V, I = 1mA, C = 0.1μF, C = 2.2μF, T = T = -40°C to +125°C, unless otherwise noted. Typical specifications are Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

IN to GND...............................................................-0.3V to +45V EN to GND..............................................................-0.3V to +45V OUT to GND...........................................................-0.3V to +12V OUT Short-Circuit Duration........................................Continuous Maximum Current Into Any Pin (except IN and OUT)......±50mA Continuous Power Dissipation (T A = +70°C)

6-Pin TDFN-EP (derate 23.8mW/°C above +70°C).......1904mW*8-Pin SO-EP (derate 23.3mW/°C above +70°C).........1860mW*

Thermal Resistance

θJA , 6-Pin TDFN ...........................................................42°C/W θJC , 6-Pin TDFN..........................................................8.5°C/W θJA , 8-Pin SO-EP..........................................................43°C/W θJC , 8-Pin SO-EP............................................................7°C/W Operating Temperature Range .........................-40°C to +125°C Junction Temperature......................................................+150°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°C

*As per JEDEC51 Standard (Multilayer Board).

MAX15006/MAX15007

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

_______________________________________________________________________________________3

MAX15006中文资料

OUT Note 3:Dropout voltage is defined as (V IN - V OUT ) when V OUT is 2% below the value of V OUT when V IN = V OUT + 3V.

Note 4:

For V OUT = 3.3V, the 700mV dropout indicates V OUT does not reach 2% below V OUT at V IN = V OUT + 3V at minimum 4V input voltage.

Note 5:Enable to regulation time is the time the output takes to reach 95% of its final value with V IN = 14V and EN is taken from V IL

to V IH in 5ns.

ELECTRICAL CHARACTERISTICS (continued)

(V IN = 14V, I OUT = 1mA, C IN = 0.1μF, C OUT = 2.2μF, T A = T J = -40°C to +125°C, unless otherwise noted. Typical specifications are at T A = +25°C.) (Note 1)

M A X 15006/M A X 15007

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO 4_______________________________________________________________________________________

Typical Operating Characteristics

(V IN = 14V, C IN = 0.1μF, C OUT = 2.2μF, V EN = V IN , T A = +25°C, unless otherwise noted.)

OUTPUT VOLTAGE vs. INPUT VOLTAGE

(MAX15006A/MAX15007A)

MAX15006中文资料

V IN (V)

V O U T (V )

35

302025

10

15

5

0.30.60.91.21.51.82.12.42.73.33.03.60

40

MAX15006中文资料

OUTPUT VOLTAGE vs. INPUT VOLTAGE

(MAX15006B/MAX15007B)

V IN (V)

V O U T (V )

35

30

2025

10

15

5

0.51.01.52.02.53.03.54.04.55.05.50

40

OUTPUT VOLTAGE vs. TEMPERATURE

(MAX15006A/MAX15007A)

MAX15006中文资料

TEMPERATURE (°C)

V O U T (V )

12510050

75

25

-25

3.183.21

3.243.273.303.333.363.393.423.45

3.15

-50

150

OUTPUT VOLTAGE vs. TEMPERATURE

(MAX15006B/MAX15007B)

MAX15006中文资料

TEMPERATURE (°C)

V O U T (V )

12510050

750

25

-25

4.804.854.904.95

5.005.055.105.155.205.254.75

-50

150DROPOUT VOLTAGE vs. LOAD CURRENT

MAX15006中文资料

(MAX15006B/MAX15007B)

I OUT (mA)

V D R O P O U T (m V )

35304540202510155501001502002503003504004505000

050

GROUND CURRENT vs. LOAD CURRENT

MAX15006中文资料

(MAX15006B/MAX15007B)

I OUT (mA)

I G N D (μA )

35304540202510155

10

2030405060708090100

00

50

MAX15006中文资料

GROUND CURRENT vs. TEMPERATURE

(I OUT = 0)

TEMPERATURE (°C)I G N D (μA )

12510050

75

25

-25

246810121416180-50

150GROUND CURRENT vs. TEMPERATURE

(I OUT = 50mA)

M A X 15006 t o c 08

TEMPERATURE (°C)

I G N D (μA )

1251005075025-2591929394959697989910090

MAX15006中文资料

-50150

SHUTDOWN SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (°C)

I S H D N (μA )

12510050

75

25

-25

1

2345678910

0-50

150

MAX15006/MAX15007

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

_______________________________________________________________________________________5

GROUND CURRENT DISTRIBUTION

(T A = -40°C)

MAX15006中文资料

I GND (μA)

N U M B E R O F U N I T S

10.9

10.810.710.6

10.5

3691215182124270

10.4

11.0

GROUND CURRENT DISTRIBUTION

(T A = +25°C)

MAX15006中文资料

I GND (μA)

N U M B E R O F U N I T S

11.3

11.211.111.0

10.9

3691215182124270

10.8

11.4

GROUND CURRENT DISTRIBUTION

(T A = +125°C)

MAX15006中文资料

MAX15006中文资料

I GND (μA)

N

MAX15006中文资料

U M B E R O F U N I T S

12.011.911.811.7369121518212427

11.612.1

LOAD-TRANSIENT RESPONSE (MAX15006B/MAX15007B)

MAX15006 toc13

400

MAX15006中文资料

μs/div V OUT

AC-COUPLED 200mV/div

50mA I OUT

MAX15006中文资料

1mA

INPUT-VOLTAGE STEP RESPONSE (MAX15006B/MAX15007B, I OUT = 1mA)

MAX15006 toc14

400μs/div

18V V IN 14V

V OUT

AC-COUPLED 100mV/div

STARTUP RESPONSE

200μs/div

V IN 5V/div

V OUT 2V/div

MAX15006B/MAX15007B I OUT = 1mA

ENABLE STARTUP RESPONSE

400μs/div

EN 1V/div V OUT 2V/div

MAX15006B/MAX15007B I OUT = 0ENABLE STARTUP RESPONSE

400μs/div

EN 1V/div V OUT 2V/div

MAX15006B/MAX15007B I OUT = 50mA ENABLE STARTUP RESPONSE

400μs/div

EN 1V/div

V OUT 2V/div

Typical Operating Characteristics (continued)

(V IN = 14V, C IN = 0.1μF, C OUT = 2.2μF, V EN = V IN , T A = +25°C, unless otherwise noted.)

M A X 15006/M A X 15007

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO 6_______________________________________________________________________________________

ENABLE STARTUP RESPONSE

400μs/div

EN 1V/div

V OUT 2V/div

MAX15006B/MAX15007B V IN = 40V, I OUT = 50mA POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

MAX15006中文资料

FREQUENCY (kHz)

P S R R (d B )

1001

10

0.1

-90-80-70-60-50-40-30-20-10

0-100

0.01

1000

OUTPUT-NOISE SPECTRAL DENSITY

vs. FREQUENCY

MAX15006中文资料

FREQUENCY (kHz)

O U T P U T -N O I S E S P E C T R A L D E N S I T Y (μV /H z )

1

10

0.1

0.1

1

10

0.01

0.01

MAX15006中文资料

100

OUTPUT-NOISE SPECTRAL DENSITY

vs. FREQUENCY

FREQUENCY (kHz)

1

10

0.1

0.1

1

100.01

0.01

100

MAX15006中文资料

O U T P U T -N O I S E S P E C T R A L D E N S I T Y (μV /√H z )

OUTPUT VOLTAGE NOISE vs. LOAD CURRENT

I OUT (mA)

e n (μV R M S )

403525301510205

1530

45607590105120135150

00

50

45Typical Operating Characteristics (continued)

(V IN = 14V, C IN = 0.1μF, C OUT = 2.2μF, V EN = V IN , T A = +25°C, unless otherwise noted.)

MAX15006/MAX15007

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

_______________________________________________________________________________________7

OUTPUT VOLTAGE NOISE vs. OUTPUT CAPACITANCE

MAX15006中文资料

MAX15006中文资料

C OUT (μF)

e n (μV R M S )

14128104

6

2

153045607590105120135150

00

22181620CLAMPED LOAD DUMP

(I OUT = 0)

MAX15006 toc25

100ms/div

40V V IN 13.5V

V OUT

AC-COUPLED 20mV/div

Typical Operating Characteristics (continued)

(V IN = 14V, C IN = 0.1μF, C OUT = 2.2μF, V EN = V IN , T A = +25°C, unless otherwise noted.)

MAX15006中文资料

M A X 15006/M A X 15007

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO 8_______________________________________________________________________________________

MAX15006中文资料

Functional Diagrams

MAX15006中文资料

Figure 2.MAX15007 Simplified Functional Diagram

MAX15006/MAX15007

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

The MAX15006/MAX15007 high-voltage linear regula-tors operate over a 4V to 40V input voltage range.These devices guarantee 50mA load drive, and offer preset output voltages of +3.3V or +5V. Thermal shut-down and short-circuit protection prevent damage dur-ing overtemperature and overcurrent conditions. The MAX15007 includes an enable input (EN) allowing the regulators to be turned on/off using a logic-level volt-age. Driving EN high turns on the device while driving EN low places the device in a low-power shutdown mode. In shutdown, the supply current is reduced to 3μA (typ). The MAX15006/MAX15007 operate over the -40°C to +125°C automotive temperature range. All devices are available in thermally enhanced 6-pin TDFN and 8-pin SO packages capable of dissipating 1.904W and 1.860W at T A = +70°C, respectively.

Regulator

The regulator accepts an input voltage from 4V to 40V.The MAX15006A/MAX15007A have a fixed 3.3V output voltage while the MAX15006B/MAX15007B offer a fixed 5V output voltage.

EN Input (MAX15007 Only)

EN is an active-high, logic-level enable input that turns the device on or off. Drive EN high to turn the device on. An internal 0.5μA pulldown current keeps the MAX15007 in shutdown mode when driven by a three-

state driver in high-impedance mode, or an open-drain driver. While in shutdown, the device consumes only 3μA (typ). EN withstands voltages up to 40V, allowing it to be driven by high input level voltages or connected to IN for always-on operation.

Thermal Protection

When the junction temperature exceeds +165°C, an internal thermal sensor turns the pass transistor off, and allows the device to cool. The thermal sensor turns the pass transistor on again after the junction temperature cools by 20°C. This results in a cycled output during continuous thermal-overload conditions. Thermal pro-tection protects the MAX15006/MAX15007 in the event of fault conditions. Operation at T J = +150°C without going into thermal shutdown is not guaranteed. Use Figures 3a and 3b to determine the minimum guaran-teed output current.

Output Short-Circuit Current Limit

The MAX15006/MAX15007 feature a 175mA current limit. The output can be shorted to GND for an indefi-nite period of time without damage to the device.During a short circuit, the power dissipated across the pass transistor can quickly heat the device. When the die temperature reaches +165°C, the MAX15006/MAX15007 shut down and automatically restart after the die temperature cools by 20°C.

_______________________________________________________________________________________

9

MAX15006中文资料

MAX15006中文资料

M A X 15006/M A X 15007

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO 10______________________________________________________________________________________

Applications Information

Available Output Current Calculation

The MAX15006/MAX15007 provide up to 50mA of con-tinuous output current. The input voltage range extends to 40V. Package power dissipation limits the amount of output current available for a given input/output voltage and ambient temperature. Figure 4 shows the maximum allowable power dissipation for these devices to keep the junction temperature below +150°C. Figure 4 assumes that the exposed metal pad of the MAX15006/MAX15007is soldered to 1in 2of PCB copper.

Use Figure 4 to determine the allowable package dissi-pation for a given ambient temperature. Alternately, use the following formulas to calculate the allowable pack-age dissipation. For the TDFN package:

For the SO-EP package:

After determining the allowable package dissipation,

calculate the maximum allowable output current, with-out exceeding the +150°C junction temperature, using the following formula:

The above equations do not include the negligible power dissipation from self-heating due to the IC ground current.

Example 1 (TDFN Package):

T A = +125°C V IN = 26V

V OUT = 3.3V

Calculate the maximum allowable package dissipation at the given temperature as follows:

And establish the maximum output current:

Example 2 (TDFN Package):

T A = +85°C V IN = 14V V OUT = 5V

Calculate the maximum allowable package dissipation

MAX15006中文资料

at the given temperature as follows:

MAX15006中文资料

MAX15006中文资料

MAX15006中文资料

MAX15006中文资料

MAX15006中文资料

MAX15006中文资料

Figure 4.Calculated Maximum Power Dissipation vs. Ambient Temperature

MAX15006/MAX15007

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

______________________________________________________________________________________

11

Then determine the maximum output current:

Example 3 (TDFN Package):T A = +50°C V IN = 9V V OUT = 5V

Calculate the maximum allowable package dissipation at the given temperature as follows:

P D = 1.9048W

Find the maximum output current:

In Examples 2 and 3, the maximum output current is calculated as 172mA and 476mA, respectively; howev-er, the allowable output current cannot exceed 50mA.

Alternately, use Figures 5a and 5b to quickly determine the maximum allowable output current for selected ambient temperatures and input voltages.

Output-Capacitor Selection

and Regulator Stability

For stable operation over the full temperature range and with load currents up to 50mA, use a low-ESR 2.2μF (min) ceramic or tantalum output capacitor. Use larger output-capacitor values such as 22μF to reduce noise, improve load-transient response, and power-supply rejection.

Some ceramic dielectrics exhibit large capacitance and ESR variations with temperature. Ensure the mini-mum capacitance under worst-case conditions does not drop below 1.3μF to ensure output stability. With an X7R dielectric, 2.2μF should be sufficient at all operat-

MAX15006中文资料

ing temperatures.

MAX15006中文资料

MAX15006中文资料

Figure 5a.Calculated Maximum Output Current vs. Input

MAX15006中文资料

Voltage (6-Pin TDFN-EP)Figure 5b.Calculated Maximum Output Current vs. Input Voltage (8-Pin SO-EP)

M A X 15006/M A X 15007

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO 12______________________________________________________________________________________

MAX15006中文资料

MAX15006中文资料

MAX15006中文资料

Pin Configurations (continued)

Ordering Information (continued)

Note: All devices are specified over the -40°C to +125°C oper-ating temperature range.

+Denotes lead-free package.*EP = Exposed pad.

Chip Information

PROCESS: BiCMOS

MAX15006/MAX15007

Package Information

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to http://www.wendangku.net/doc/b5ff16cc2cc58bd63186bd9a.html/packages .)

MAX15006中文资料

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

______________________________________________________________________________________

13

M A X 15006/M A X 15007

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO 14______________________________________________________________________________________

MAX15006中文资料

Package Information (continued)

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to http://www.wendangku.net/doc/b5ff16cc2cc58bd63186bd9a.html/packages .)

MAX15006/MAX15007

40V , Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________15?2006 Maxim Integrated Products

MAX15006中文资料

is a registered trademark of Maxim Integrated Products, Inc.

Package Information (continued)

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to http://www.wendangku.net/doc/b5ff16cc2cc58bd63186bd9a.html/packages .)

MAX15006中文资料