当前位置：文档库 › LD1117-18-AA3-C-R中文资料

LD1117-18-AA3-C-R中文资料

UNISONIC TECHNOLOGIES CO., LTD

LD1117/A LINEAR INTEGRATED CIRCUIT

LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS

DESCRIPTION

The UTC LD1117/A is a low dropout, 3-terminal positive voltage regulator designed to provide output current up to 800mA/1A, There are adjustable version (V REF =1.25V) and various fixed versions.

FEATURES

* Low dropout voltage

* Suitable for SCSI-2 active termination if V OUT set to 2.85V * Output current up to 0.8A for 1117 and 1.0A for 1117A * Built-in current limit and over temperature protection

* Available in ±1%(at 25°C) and 2% in all temperature range * Low current consumption

*Pb-free plating product number: LD1117L-xx / LD1117AL-xx

ORDERING INFORMATION

Order Number

Normal Lead Free Plating

Package

② Pin Assignment ③ Packing LD1117①-xx-AA3-②-③ LD1117①L-xx-AA3-②-③ SOT-223

LD1117①-xx-AB3-②-③ LD1117①L-xx-AB3-②-③ SOT-89 LD1117①-xx-TA3-②-③ LD1117①L-xx-TA3-②-③ TO-220 LD1117①-xx-TN3-②-③ LD1117①L-xx-TN3-②-③ TO-252 LD1117①-xx-TQ2-②-③ LD1117①L-xx-TQ2-②-③ TO-263 LD1117①-xx-TQ3-②-③ LD1117①L-xx-TQ3-②-③ TO-263-3

A: GOI B: OGI

C: GIO

D: IGO

LD1117①-xx-S08-②-③ LD1117①L-xx-S08-②-③ SOP-8 GOOIxOOx R: Tape Reel

T: Tube

MARKING INFORMATION

Note: Current code: Blank: 0.8A A: 1A PIN CONFIGURATION

GND V OUT

V IN

V OUT

NC 1

V OUT

BLOCK DIAGRAM

ABSOLUTE MAXIMUM RATINGS (Ta=25℃)

PARAMETER SYMBOL RATINGS UNIT

DC Input Voltage V IN 18 V Power Dissipation P D Internally limited Junction Temperature T J +150 °C Storage temperature T STG -65 ~ +150 °C Note Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

RECOMMENDED OPERATING RATINGS PARAMETER SYMBOL RATINGS UNIT Input Voltage V IN 15 V

Operating Junction Temperature Range T J 0 ~ +125 °C

ELECTRICAL CHARACTERISTICS

(Ta=25,℃ refer to the test circuits, T J =0 to 125°C, Co=10μF unless otherwise specified)

For LD1117/A-1.2

PARAMETER SYMBOL TEST CONDITIONS MIN.TYP. MAX. UNIT

Output Voltage V OUT V IN =3.2V, I OUT =10mA, T J =25°C 1.188 1.200 1.212 V

Output Voltage V OUT V IN =2.7 to 8V

LD1117 : I OUT =0 ~ 800mA LD1117A : I OUT =0 ~ 1.0A

1.176 1.200 1.224 V

Line Regulation ΔV OUT V IN =2.7 to 8V, I OUT =

0mA 1 6 mV

Load Regulation ΔV OUT V IN =2.7V

LD1117 : I OUT =0 ~ 800mA LD1117A : I OUT =0 ~ 1000mA

1 10 mV

Temperature stability ΔV OUT 0.5 % Long Term Stability ΔV OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =

100mA 15 V Quiescent Current I Q V IN ≤10V 5 10 mA

LD1117800

Current Limit I LIMIT V IN =6.2V, T J =25°C LD1117A 1000

Minimum Load Current I O(MIN) V IN =

15V 2 5 mA Output Noise Voltage eN B=10Hz to 10KHz, T J =25°C 100 μV

Supply Voltage Rejection SVR

I OUT =40mA, f=120Hz, T J =25°C,

V IN =4.2V, V RIPPLE =1Vpp

60 75 dB Dropout Voltage V D

I OUT =100mA

I OUT =500mA

I OUT =800mA

I OUT =1000 mA

1.00 1.15 1.20 1.20 1.10 1.25 1.30 1.30 V V V V Thermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/W

ELECTRICAL CHARACTERISTICS(Cont.)

For LD1117/A-1.5

PARAMETER SYMBOL TEST CONDITIONS MIN.TYP. MAX. UNIT

Output Voltage V OUT V IN =3.5V, I OUT =10mA, T J =25°C 1.485 1.500 1.515 V

Output Voltage V OUT V IN =3 to 8V

LD1117 : I OUT =0 ~ 800mA LD1117A : I OUT =0 ~ 1.0A

1.470 1.500 1.530 V

Line Regulation ΔV OUT V IN =3 to 8V, I OUT =0mA 1 6 mV

Load Regulation ΔV OUT V IN =3V

LD1117 : I OUT =0 ~ 800mA LD1117A : I OUT =0 ~ 1000mA

1 10 mV Temperature stability ΔV OUT 0.5 % Long Term Stability ΔV OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =100mA 15 V Quiescent Current I Q V IN ≤10V 5 10 mA

LD1117800

Current Limit I LIMIT V IN =6.5V, T J =25°C LD1117A 1000

Output Noise Voltage eN B=10Hz to 10KHz, T J =25°C 100 μV

Supply Voltage Rejection SVR

I OUT =40mA, f=120Hz, T J =25°C,

V IN =4.5V, V RIPPLE =1Vpp

60 75 dB Dropout Voltage V D

I OUT =100mA I OUT =500mA I OUT =800mA

I OUT =1000 mA

1.00 1.15 1.20 1.20 1.10 1.25 1.30 1.30 V V V V Thermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/W

For LD1117/A-1.8

PARAMETER SYMBOL TEST CONDITIONS MIN.TYP. MAX. UNIT

Output Voltage V OUT V IN =3.8V, I OUT =10mA, T J =25°C 1.780 1.800 1.820 V

Output Voltage V OUT V IN =3.3 to 8V

LD1117 : I OUT =0 ~ 800mA LD1117A : I OUT =0 ~ 1000mA

1.760 1.800 1.840 V

Line Regulation ΔV OUT V IN =3.3 to 8V, I OUT =0mA 1 6 mV

Load Regulation ΔV OUT V IN =3.3V

LD1117 : I OUT =0 ~ 800mA LD1117A : I OUT =0 ~ 1000mA

1 10 mV

Temperature stability ΔV OUT 0.5 % Long Term Stability ΔV OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =100mA 10 V Quiescent Current I Q V IN ≤8V 5 10 mA

LD1117800

Current Limit I LIMIT V IN =6.8V, T J =25°C LD1117A 1000

Output Noise Voltage eN B=10Hz to 10KHz, T J =25°C 100 μV

Supply Voltage Rejection SVR

I OUT =40mA, f=120Hz, T J =25°C,

V IN =5.5V, Vripple=1Vpp

60 75 dB Dropout Voltage V D

I OUT =100mA I OUT =500mA I OUT =800mA

I OUT =1000 mA

1.00 1.15 1.20 1.20 1.10 1.25 1.30 1.30 V V V V Thermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/W

ELECTRICAL CHARACTERISTICS(Cont.)

For LD1117/A-2.5

PARAMETER SYMBOL TEST CONDITIONS MIN.TYP. MAX. UNIT

1% 2.475 2.500 2.525

Output Voltage V OUT V IN =4.5V,I OUT =10mA, T J =25°C 2% 2.450 2.500 2.550 V

2% 2.450 2.500 2.550

Output Voltage V OUT V IN =3.9 to 10V LD1117 : I OUT =0 ~ 800mA

LD1117A : I OUT =0 ~ 1.0A

4% 2.400 2.500 2.600 V Line Regulation ΔV OUT V IN =3.9 to 10V, I OUT =

0mA 1 6 mV

Load Regulation ΔV OUT V IN =3.9V

LD1117 : I OUT =0 ~ 800mA LD1117A : I OUT =0 ~ 1000mA

1 10 mV

Temperature stability ΔV OUT 0.5 % Long Term Stability ΔV OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =

100mA 15 V Quiescent Current I Q V IN ≤10V 5 10 mA

LD1117 800

Current Limit I LIMIT V IN =7.5V, T J =25°C LD1117A 1000

Output Noise Voltage eN B=10Hz to 10KHz, T J =25°C 100 μV

Supply Voltage Rejection SVR

I OUT =40mA, f=120Hz, T J =25°C,

V IN =5.5V, Vripple=1Vpp

60 75 dB Dropout Voltage V D

I OUT =100mA I OUT =500mA I OUT =800mA

I OUT =1000 mA

1.00 1.15 1.20 1.20 1.10 1.25 1.30 1.30 V V V V Thermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/W For LD1117/A-

2.85

PARAMETER SYMBOL TEST CONDITIONS MIN.TYP. MAX. UNIT Output Voltage V OUT

V IN =4.85V, I OUT =10mA, T J =25°C 2.828

2.850 2.880 V

Output Voltage V OUT V IN =4.25 to 10V

LD1117 : I OUT =0 ~ 800mA LD1117A : I OUT =0 ~ 1.0A

2.790 2.850 2.910 V

Line Regulation ΔV OUT V IN =4.25 to 10V, Io=0mA 1 6 mV

Load Regulation ΔV OUT V IN =4.25V

LD1117 : I OUT =0 ~ 800mA LD1117A : I OUT =0 ~ 1000mA

1 10 mV

Temperature stability

ΔV OUT 0.5 % Long Term Stability ΔV OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =

100mA 15 V Quiescent Current I Q V IN ≤10V 5 10 mA

LD1117 800

Current Limit I LIMIT V IN =7.85V, T J =25°C LD1117A 1000

Output Noise Voltage eN B=10Hz to 10KHz, T J =25°C 100 μV

Supply Voltage Rejection

SVR

I OUT =40mA, f=120Hz, T J =25°C,

V IN =5.85V, Vripple=1Vpp

60 75 dB Dropout Voltage V D

I OUT =100mA I OUT =500mA I OUT =800mA

I OUT =1000 mA

1.00 1.15 1.20 1.20 1.10 1.25 1.30 1.30 V V V V Thermal Regulation

Ta=25°C, 30ms Pulse 0.01 0.10 %/W

ELECTRICAL CHARACTERISTICS(Cont.)

For LD1117/A-3.0

PARAMETER SYMBOL TEST CONDITIONS MIN.TYP. MAX. UNIT

1% 2.970 3.000 3.030

Output Voltage V OUT V IN =5V,I OUT =10mA,T J =25°C 2% 2.940 3.000 3.060

V 2% 2.940 3.000 3.060

Output Voltage V OUT V IN =4.5 to 10V LD1117 : I OUT =0 ~ 800mA

LD1117A : I OUT =0 ~ 1.0A

4% 2.880 3.000 3.120 V Line Regulation ΔV OUT V IN =4.5 to 12V, I OUT =

0mA 1 6 mV

Load Regulation ΔV OUT V IN =4.5V

LD1117 : I OUT =0 ~ 800mA LD1117A : I OUT =0 ~ 1000mA

1 10 mV

Temperature stability ΔV OUT 0.5 % Long Term Stability ΔV OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =

100mA 15 V Quiescent Current I Q V IN ≤10V 5 10 mA

LD1117 800

Current Limit I LIMIT V IN =8V, T J =25°C LD1117A 1000

Output Noise Voltage eN B=10Hz to 10KHz, T J =25°C 100 μV

Supply Voltage Rejection SVR

I OUT =40mA, f=120Hz, T J =25°C,

V IN =6V, V RIPPLE =1Vpp

60 75 dB Dropout Voltage V D

I OUT =100mA I OUT =500mA I OUT =800mA

I OUT =1000 mA

1.00 1.15 1.20 1.20 1.10 1.25 1.30 1.30 V V V V Thermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/W

For LD1117/A-3.3

PARAMETER SYMBOL TEST CONDITIONS MIN.TYP. MAX. UNIT

1% 3.267 3.300 3.333

Output Voltage V OUT V IN =5.3V,I OUT =10mA, T J =25°C 2% 3.235 3.300 3.365 V

2% 3.235 3.300 3.365

Output Voltage V OUT V IN =4.75 to 10V LD1117 : I OUT =0 ~ 800mA

LD1117A : I OUT =0 ~ 1.0A

4% 3.160 3.300 3.440 V Line Regulation ΔV OUT V IN =4.75 to 15V, I OUT =

0mA 1 6 mV

Load Regulation ΔV OUT V IN =4.75V

LD1117 : I OUT =0 ~ 800mA LD1117A : I OUT =0 ~ 1000mA

1 10 mV

Temperature stability ΔV OUT 0.5 % Long Term Stability ΔV OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =

100mA 15 V Quiescent Current I Q V IN ≤15V 5 10 mA

LD1117 800

Current Limit I LIMIT V IN =8.3V, T J =25°C LD1117A 1000

Output Noise Voltage eN B=10Hz to 10KHz, T J =25°C 100 μV

Supply Voltage Rejection SVR

I OUT =40mA, f=120Hz, T J =25°C,

V IN =6.3V, V RIPPLE =1Vpp

60 75 dB Dropout Voltage V D

I OUT =100mA I OUT =500mA I OUT =800mA

I OUT =1000 mA

1.00 1.15 1.20 1.20 1.10 1.25 1.30 1.30 V V V V Thermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/W

ELECTRICAL CHARACTERISTICS(Cont.)

For LD1117/A-3.6

PARAMETER SYMBOL TEST CONDITIONS MIN.

TYP. MAX. UNIT

Output Voltage V OUT V IN =5.6V, I OUT =10mA, T J =25°C

3.564 3.600 3.636 V

Output Voltage V OUT V IN =5 to 10V

LD1117 :

I OUT =0 ~ 800mA LD1117A : I OUT =0 ~ 1.0A

3.528 3.600 3.672 V Line Regulation ΔV OUT V IN =5 to 15V, I OUT =

0mA 1 6 mV

Load Regulation ΔV OUT V IN =5V

LD1117 : I OUT =0 ~ 800mA LD1117A : I OUT =0 ~ 1000mA

1 10 mV

Temperature stability ΔV OUT 0.5 % Long Term Stability ΔV OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =100mA 15 V Quiescent Current I Q V IN ≤15V 5 10 mA

LD1117 800

Current Limit I LIMIT V IN =8.6V, Tj=25°C LD1117A 1000

Output Noise Voltage eN B=10Hz to 10KHz, T J =25°C 100 μV

Supply Voltage Rejection SVR

I OUT =40mA, f=120Hz, T J =25°C,

V IN =6.6V, V RIPPLE =1Vpp

60 75 dB Dropout Voltage V D

I OUT =100mA I OUT =500mA I OUT =800mA

I OUT =1000 mA

1.00 1.15 1.20 1.20 1.10 1.25 1.30 1.30 V V V V Thermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/W

For LD1117/A-5.0

PARAMETER SYMBOL TEST CONDITIONS MIN.TYP. MAX. UNIT

1% 4.950 5.000 5.050

Output Voltage V OUT V IN =7V,I OUT =10mA, T J =25°C 2% 4.900 5.000 5.100

2% 4.900 5.000 5.100

Output Voltage V OUT V IN =6.5 to 15V LD1117 : I OUT =0 ~ 800mA

LD1117A : I OUT =0 ~ 1.0A

4% 4.800 5.000 5.200 V Line Regulation ΔV OUT V IN =6.5 to 15V, I OUT =0mA 1 6 mV

Load Regulation ΔV OUT V IN =6.5V

LD1117 : I OUT =0 ~ 800mA LD1117A : I OUT =0 ~ 1000mA

1 10 mV

Temperature stability ΔV OUT 0.5 % Long Term Stability ΔV OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =100mA 15 V Quiescent Current I Q V IN ≤15V 5 10 mA

LD1117 800

Current Limit I LIMIT V IN =10V, T J =25°C LD1117A 1000

Output Noise Voltage eN B=10Hz to 10KHz, T J =25°C 100 μV

Supply Voltage Rejection SVR

I OUT =40mA, f=120Hz, T J =25°C,

V IN =8V, V RIPPLE =1Vpp

60 75 dB Dropout Voltage V D

I OUT =100mA I OUT =500mA I OUT =800mA

I OUT =1000 mA

1.00 1.15 1.20 1.20 1.10 1.25 1.30 1.30 V V V V Thermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/W

ELECTRICAL CHARACTERISTICS(Cont.)

For LD1117/A-ADJUSTABLE

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT

Reference Voltage V REF V IN -V OUT =2V, I OUT =10mA, T J =25°C 1.238 1.25 1.262 V

Reference Voltage V REF V IN -V OUT =1.4 to 10V

LD1117 : I OUT =10 ~ 800mA LD1117A : I OUT =10 ~ 1000mA

1.225 1.275 V

Line Regulation ΔV OUT V IN -V OUT =1.5 to 13.75V, I OUT =

10mA 0.035 0.200 %

Load Regulation ΔV OUT V IN -V OUT =3V

LD1117 : I OUT =10 ~ 800mA LD1117A : I OUT =10 ~ 1000mA

0.10 0.400 %

Temperature stability ΔV OUT 0.50 % Long Term Stability ΔV OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN 15 V Adjustment Pin Current I ADJ V IN ≤15V 60 120 μA

Adjustment Pin Current Change ΔI ADJ V IN -V OUT =1.4 to 10V,

LD1117 : I OUT =10 ~ 800mA LD1117A : I OUT =10 ~ 1000mA 1 5 μA

Minimum Load Current I O(MIN) V IN =

15V 2 5 mA

LD1117800

Current Limit I LIMIT V IN -V OUT =5V, T J =25°C LD1117A 1000

Output Noise (%Vo) eN B=10Hz to 10KHz, T J =25°C 0.003 %

Supply Voltage Rejection SVR

I OUT =40mA, f=120Hz, T J =25°C,

V IN -V OUT =3V, Vripple=1Vpp

60 75 dB Dropout Voltage V D

I OUT =100mA I OUT =500mA I OUT =800mA

I OUT =1000mA

1.00 1.15 1.20 1.20 1.10 1.25 1.30 1.30 V V V V Thermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/W

THERMAL DATA

PARAMETER SYMBOL RATINGS UNIT

SOT-223 15

SOP-8 20

TO-252 12 TO-220 4 Thermal Resistance Junction-Case

TO-263 θJC 4

°C/W SOT-223 165 SOP-8 150

TO-252 112

TO-220 54 Thermal Resistance Junction-Ambient

TO-263 θJA 64

°C/W

TYPICAL APPLICATIONS

Floating Input

OUT = -5V

FIG.1 Negative Supply

18-27Lines

FIG.2 Active Terminator for SCSI-2 BUS

FIG.3 Circuit for Increasing Output Voltage

APPLICATION NOTE of LD1117/A ADJUSTABLE

The LD1117/A ADJUSTABLE has a reference voltage of between the OUT and ADJ pins. I ADJ is 60μA typ. (120μA max.) and ΔI ADJ is 1μA typ. (5μA max.). R1 is normally fixed to 120Ω. From figure 4 we obtain:

V OUT =V REF +R2(I ADJ + I R1)=V REF + R2(I ADJ + V REF / R1)=V REF (1+R2/R1) + R2 x I ADJ .

Usually R2 value is in the range of few K ?, so the R2 X I ADJ product could be neglected; then the above expression becomes: V OUT =V REF (1+R2/R1)

For better load regulation, realize a good Kelvin connection of R1 and R2 is important. Particularly R1

connection must be realized very close to OUT and ADJ pin, while R2 ground connection must be placed as near as possible to the negative Load pin. Ripple rejection can be improved by introducing a 10μF electrolytic capacitor placed in parallel to the R2 resistor (See Fig. 5)

V IN

V OUT

FIG.4 Adjustable Output Voltage Application Circuit

FIG.5 Adjustable Output Voltage Application with improved Ripple Rejection.

TYPICAL PERFORMANCE CHARACTERISTICS

R e f e r e n c e V o l t a g e (V )

P o w e r (W )

UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.