LT1508CSW Linear Technology, LT1508CSW Datasheet - Page 16

• Manufacturer Part Number: LT1508CSW
• Description: IC PWM/POWER FACTOR CNTRLR20SOIC
• Manufacturer: Linear Technology

Specifications of LT1508CSW

• Mode: Average Current
• Frequency - Switching: 100kHz
• Voltage - Supply: 27V
• Operating Temperature: 0°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Startup: -

16
PACKAGE
LT1508
RELATED PARTS
PART NUMBER
LT1084
LT1105
LT1241-5
LT1247
LT1248
LT1249
LT1509
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417 [phone]
FAX: [phone] TELEX: 499-3977 www.linear-tech.com
(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
DESCRIPTION
5A Low Dropout Linear Regulator
Simplified Off-Line Controller
High Frequency Current Mode PWM Controller
High Frequency Current Mode PWM Controller
Full-Feature Average Current Mode Power Factor Controller
Minimal Parts Count Power Factor Controller
Power Factor and PWM Controller
DESCRIPTION
(0.254 – 0.737)
0.010 – 0.029
NOTE 1
(7.391 – 7.595)
0.291 – 0.299**
(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
SW Package
(2.362 – 2.642)
0.093 – 0.104
(1.270)
0.050
TYP
20
1
(0.356 – 0.482)
COMMENTS
Good for Post Regulation of Switching Power Supplies
Solution for Universal Off-Line Inputs with Output to 100W
Operates at Oscillator Frequencies up to 500kHz
Operates at Oscillator Frequencies up to 1MHz
Provides All Features in 16-Lead Package
Simplified PFC Design
Current Mode PWM
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
LINEAR TECHNOLOGY CORPORATION 1995
11
10
(0.940 – 1.143)
1508f LT/TP 0697 7K • PRINTED IN USA
0.037 – 0.045
(0.102 – 0.305)
0.004 – 0.012
(10.007 – 10.643)
0.394 – 0.419
S20 (WIDE) 0396