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LT1269CSW#PBF

P1-P3P4-P6P7-P8
7
LT1271/LT1269
U
PACKAGE
D
E
SC
R
I
PTI
O
Dimensions in inches (millimeters) unless otherwise noted.
SW Package
20-Lead Plastic Small Outline (Wide 0.300)
(LTC DWG # 05-08-1620)
S20 (WIDE) 0396
NOTE 1
0.496 – 0.512*
(12.598 – 13.005)
20
19 18
17
16
15
14 13
1
23
4
5
6
78
0.394 – 0.419
(10.007 – 10.643)
910
1112
0.037 – 0.045
(0.940 – 1.143)
0.004 – 0.012
(0.102 – 0.305)
0.093 – 0.104
(2.362 – 2.642)
0.050
(1.270)
TYP
0.014 – 0.019
(0.356 – 0.482)
TYP
0° – 8° TYP
NOTE 1
0.009 – 0.013
(0.229 – 0.330)
0.016 – 0.050
(0.406 – 1.270)
0.291 – 0.299**
(7.391 – 7.595)
× 45°
0.010 – 0.029
(0.254 – 0.737)
NOTE:
1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.
THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS
DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
*
**
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
8
LT1271/LT1269
LINEAR TECHNOLOGY CORPORATION 1992
TYPICAL APPLICATION
U
Negative Buck Converter
C1
L1**
100µH
D1
MBR735
1271/69 TA05
12k
LT1271
V
SW
FB
GND
V
IN
V
C
C2
100µF
* REQUIRED IF INPUT LEADS ≥ 2"
** COILTRONICS CTX100-2-52
×
×
R1
4.64k
Q1
2N3906
R3
V
IN
–8V TO –30V
C3*
100µF
OPTIONAL
INTPUT
FILTER
L3
10µH
R2
1.24k
LOAD
OPTIONAL
OUTPUT
FILTER
L2
4µH
C4
200µF
–5.2V AT 3.5A
+
+
+
127169fb LT/TP 0798 2K REV B • PRINTED IN USA
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IN
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IN
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IN
Up to 25V, Uses 4.7µH Inductor
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear-tech.com
P1-P3P4-P6P7-P8

LT1269CSW#PBF

Mfr. #:
Buy LT1269CSW#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 4A Hi Eff Sw Regs
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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