LT1120I 查看數據表（PDF） - Linear Technology
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LT1120I Datasheet PDF : 12 Pages
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LT1120
TYPICAL APPLICATIO
Current Limited 1A Regulator
2.2k
5
VIN
VOUT 4
LT1120
GND
1
2
FB
0.22μF
270Ω
MJE2955
100k
100k
0.5Ω*
VIN
2N3906*
VOUT
5V
AT 1A
+
220μF†
1120 TA10
* SETS CURRENT LIMIT BUT INCREASES DROPOUT VOLTAGE BY 0.5V
† MUST HAVE LOW ESR. SEVERAL 100μF CAPACITORS CAN BE PARALLELED
PACKAGE DESCRIPTIO
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
.010
(0.254
–
–
.020
0.508)
×
45°
.008 – .010
(0.203 – 0.254)
.053 – .069
(1.346 – 1.752)
0°– 8° TYP
.016 – .050
(0.406 – 1.270)
NOTE:
1. DIMENSIONS
IN
INCHES
(MILLIMETERS)
.014 – .019
(0.355 – 0.483)
TYP
2. DRAWING NOT TO SCALE
3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
.004 – .010
(0.101 – 0.254)
.050
(1.270)
BSC
.228 – .244
(5.791 – 6.197)
.189 – .197
(4.801 – 5.004)
NOTE 3
8
7
6
5
1
2
34
.050 BSC
.045 ±.005
.150 – .157
(3.810 – 3.988)
.245
MIN
NOTE 3
.160 ±.005
SO8 0303
.030 ±.005
TYP
RECOMMENDED SOLDER PAD LAYOUT
RELATED PARTS
PART NUMBER
LT1121
DESCRIPTION
150mA Micropower Low Dropout Regulator
LT1521
300mA Mircopower Low Dropout Regulator
LT1761
100mA Micropower Low Noise, Low Dropout Regulator
12 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
COMMENTS
0.4V Dropout Voltage, Includes Shutdown,
SOT-223, S8 Packages
Lowest IQ Low Dropout Regulator,
SOT-223, S8, MS8 Packages
SOT-23, 20μVRMS Noise, 20μA IQ, ThinSOT Package
1120fd
LT 0907 REV D • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1989
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