LT1271CQ#PBF Linear Technology, LT1271CQ#PBF Datasheet - Page 7
LT1271CQ#PBF
Manufacturer Part Number
LT1271CQ#PBF
Description
IC SWTCHNG REG 4A HI-EFF 5-DD
Manufacturer
Linear Technology
Type
Step-Down (Buck), Inverting, Flybackr
Datasheet
1.LT1271CQ.pdf
(8 pages)
Specifications of LT1271CQ#PBF
Synchronous Rectifier
No
Number Of Outputs
1
Current - Output
4A
Frequency - Switching
60kHz
Voltage - Input
3.5 ~ 30 V
Operating Temperature
0°C ~ 100°C
Mounting Type
Surface Mount
Package / Case
D²Pak, TO-263 (5 leads + tab)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Output
-
Power - Output
-
Internal Switch(s)
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
PACKAGE DESCRIPTIO
(0.229 – 0.330)
NOTE:
1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.
0.009 – 0.013
**
*
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
(0.254 – 0.737)
0.010 – 0.029
NOTE 1
(7.391 – 7.595)
0.291 – 0.299**
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.
(0.406 – 1.270)
0.016 – 0.050
45
U
20-Lead Plastic Small Outline (Wide 0.300)
Dimensions in inches (millimeters) unless otherwise noted.
0 – 8 TYP
(LTC DWG # 05-08-1620)
NOTE 1
(2.362 – 2.642)
SW Package
0.093 – 0.104
(1.270)
0.050
TYP
20
1
(0.356 – 0.482)
0.014 – 0.019
19
2
TYP
18
3
17
(12.598 – 13.005)
4
0.496 – 0.512*
16
5
15
6
14
7
13
8
12
9
11
10
LT1271/LT1269
(0.940 – 1.143)
0.037 – 0.045
(0.102 – 0.305)
0.004 – 0.012
(10.007 – 10.643)
0.394 – 0.419
S20 (WIDE) 0396
7