12

LT1372/LT1377

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

2 Li-Ion Cell to 5V SEPIC Converter

LT1372/LT1377

GND

4V TO 9V

1

2

8

5

4

6, 7

FB

LT1372 • TA07

S/S

C1

33

µF

20V

C4

0.047

µF

C5

0.0047

µF

R1

2k

R3

6.19k

1%

R2

18.7k

1%

†

5V

C3

100

µF

10V

ON

OFF

4V

5V

7V

9V

0.45A

0.55A

0.65A

0.72A

L1A*

10

µH

•

•

L1B*

10

µH

C2

1

µF

C1 = AVX TPSD 336M020R0200

C2 = TOKIN 1E105ZY5U-C103-F

C3 = AVX TPSD107M010R0100

*SINGLE INDUCTOR WITH TWO WINDINGS

COILTRONICS CTX10-1

OUT

+

+

MBRS130LT3

RELATED PARTS

PART NUMBER

DESCRIPTION

COMMENTS

LT1172

100kHz 1.25A Boost Switching Regulator

LTC

12V 1.2A Monolithic Buck Converter

Converts 5V to 3.3V at 1A with 90% Efficiency

LT1302

Micropower 2A Boost Converter

Converts 2V to 5V at 600mA in SO8 Packages

LT1376

500kHz 1.5A Buck Switching Regulator

Steps Down from Up to 25V Using 4.7

µH Inductors

LT1373

Low Supply Current 250kHz 1.5A Boost Switching Regulator

90% Efficient Boost Converter with Constant Frequency

© LINEAR TECHNOLOGY CORPORATION 1995

LT/GP 0996 5K REV A • PRINTED IN THE USA

N8 0695

0.005

(0.127)

MIN

0.100

± 0.010

(2.540

± 0.254)

0.065

(1.651)

TYP

0.045 – 0.065

(1.143 – 1.651)

0.130

± 0.005

(3.302

± 0.127)

0.015

(0.380)

MIN

0.018

± 0.003

(0.457

± 0.076)

0.125

(3.175)

MIN

0.009 – 0.015

(0.229 – 0.381)

0.300 – 0.325

(7.620 – 8.255)

0.325

+0.025

–0.015

+0.635

–0.381

8.255

()

12

3

4

87

6

5

0.255

± 0.015*

(6.477

± 0.381)

0.400*

(10.160)

MAX

*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.

MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)

N8 Package

8-Lead PDIP (Narrow 0.300)

(LTC DWG # 05-08-1510)

0.016 – 0.050

0.406 – 1.270

0.010 – 0.020

(0.254 – 0.508)

× 45°

0

°– 8° TYP

0.008 – 0.010

(0.203 – 0.254)

SO8 0695

0.053 – 0.069

(1.346 – 1.752)

0.014 – 0.019

(0.355 – 0.483)

0.004 – 0.010

(0.101 – 0.254)

0.050

(1.270)

BSC

1

2

3

4

0.150 – 0.157**

(3.810 – 3.988)

8

7

6

5

0.189 – 0.197*

(4.801 – 5.004)

0.228 – 0.244

(5.791 – 6.197)

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

*

**

S8 Package

8-Lead Plastic Small Outline (Narrow 0.150)

(LTC DWG # 05-08-1610)