12
LT1120
1120fd
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 1989
LT 0907 REV D • PRINTED IN USA
TYPICAL APPLICATIO
U
Current Limited 1A Regulator
+
V
OUT
FB
GND
LT1120
4
0.22μF 100k
MJE2955
2.2k
0.5Ω*
V
IN
100k270Ω
220μF
†
V
OUT
5V
AT 1A
1120 TA10
2
1
V
IN
5
2N3906*
* SETS CURRENT LIMIT BUT INCREASES DROPOUT VOLTAGE BY 0.5V
†
MUST HAVE LOW ESR. SEVERAL 100μF CAPACITORS CAN BE PARALLELED
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT1121 150mA Micropower Low Dropout Regulator 0.4V Dropout Voltage, Includes Shutdown,
SOT-223, S8 Packages
LT1521 300mA Mircopower Low Dropout Regulator Lowest I
Q
Low Dropout Regulator,
SOT-223, S8, MS8 Packages
LT1761 100mA Micropower Low Noise, Low Dropout Regulator SOT-23, 20μV
RMS
Noise, 20μA I
Q,
ThinSOT
Package
.016 – .050
(0.406 – 1.270)
.010 – .020
(0.254 – 0.508)
× 45°
0°– 8° TYP
.008 – .010
(0.203 – 0.254)
SO8 0303
.053 – .069
(1.346 – 1.752)
.014 – .019
(0.355 – 0.483)
TYP
.004 – .010
(0.101 – 0.254)
.050
(1.270)
BSC
1
2
3
4
.150 – .157
(3.810 – 3.988)
NOTE 3
8
7
6
5
.189 – .197
(4.801 – 5.004)
NOTE 3
.228 – .244
(5.791 – 6.197)
.245
MIN
.160
±.005
RECOMMENDED SOLDER PAD LAYOUT
.045 ±.005
.050 BSC
.030 ±.005
TYP
INCHES
(MILLIMETERS)
NOTE:
1. DIMENSIONS IN
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)
PACKAGE DESCRIPTIO
U
