LT1372 Linear Technology, LT1372 Datasheet - Page 12

• Manufacturer Part Number: LT1372
• Description: 500kHz and 1MHz High Efficiency 1.5A Switching Regulators
• Manufacturer: Linear Technology

LT1372/LT1377
TYPICAL APPLICATIONS
12
RELATED PARTS
PART NUMBER
LT1172
LTC
LT1302
LT1376
LT1373
PACKAGE
®
1265
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
(0.203 – 0.254)
**
0.008 – 0.010
*
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
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
DESCRIPTION
100kHz 1.25A Boost Switching Regulator
12V 1.2A Monolithic Buck Converter
Micropower 2A Boost Converter
500kHz 1.5A Buck Switching Regulator
Low Supply Current 250kHz 1.5A Boost Switching Regulator
DESCRIPTION
(7.620 – 8.255)
(0.229 – 0.381)
0.300 – 0.325
0.009 – 0.015
0.325
8.255
(0.254 – 0.508)
0.010 – 0.020
FAX
+0.635
–0.381
: [phone]
+0.025
–0.015
0.016 – 0.050
0.406 – 1.270
+
45
OFF
C1
33 F
20V
ON
(1.651)
0.065
U
TYP
TELEX
(2.540 0.254)
0.100 0.010
(0.127)
4
0.005
MIN
0 – 8 TYP
S/S
U
: 499-3977
GND
LT1372/LT1377
8-Lead Plastic Small Outline (Narrow 0.150)
N
6, 7
4V TO 9V
(1.143 – 1.651)
0.045 – 0.065
V
V
(1.346 – 1.752)
IN
IN
0.053 – 0.069
5
Dimensions in inches (millimeters) unless otherwise noted.
2 Li-Ion Cell to 5V SEPIC Converter
(0.355 – 0.483)
0.014 – 0.019
V
V
SW
C
FB
1
R1
2k
8-Lead PDIP (Narrow 0.300)
C4
0.047 F
8
2
(LTC DWG # 05-08-1610)
(LTC DWG # 05-08-1510)
•
L1A*
10 H
N8 Package
S8 Package
1 F
C2
(0.457 0.076)
0.018 0.003
C5
0.0047 F
(3.302 0.127)
0.130 0.005
(3.175)
0.125
MIN
MBRS130LT3
•
L1B*
10 H
(1.270)
(0.101 – 0.254)
0.050
0.004 – 0.010
BSC
(0.380)
0.015
COMMENTS
Good for Up to V
Converts 5V to 3.3V at 1A with 90% Efficiency
Converts 2V to 5V at 600mA in SO8 Packages
Steps Down from Up to 25V Using 4.7 H Inductors
90% Efficient Boost Converter with Constant Frequency
MIN
R2
18.7k
1%
R3
6.19k
1%
(6.477 0.381)
0.255 0.015*
(5.791 – 6.197)
0.228 – 0.244
+
C3
100 F
10V
IN
V
5V
OUT
= 40V
†
8
1
1
8
*SINGLE INDUCTOR WITH TWO WINDINGS
†
C1 = AVX TPSD 336M020R0200
C2 = TOKIN 1E105ZY5U-C103-F
C3 = AVX TPSD107M010R0100
MAX I
COILTRONICS CTX10-1
0.45A
0.55A
0.65A
0.72A
I
OUT
2
(10.160)
7
(4.801 – 5.004)
0.189 – 0.197*
0.400*
MAX
OUT
7
2
V
4V
5V
7V
9V
IN
LT/GP 0996 5K REV A • PRINTED IN THE USA
6
3
LINEAR TECHNOLOGY CORPORATION 1995
6
3
4
5
N8 0695
5
4
SO8 0695
LT1372 • TA07
(3.810 – 3.988)
0.150 – 0.157**