8

LT1308

© LINEAR TECHNOLOGY CORPORATION 1998

Linear Technology Corporation

1308i LT/TP 0198 4K • PRINTED IN USA

Digital Camera Power Supply

2-4 Cell to 3.3V/175mA, 5V/175mA, 18V/10mA, – 10V/10mA

PART NUMBER

DESCRIPTION

COMMENTS

LTC

Triple High Side Driver for 2-Cell Inputs

1.8V Minimum Input, Drives N-Channel MOSFETs

LTC1174

Micropower Step-Down DC/DC Converter

94% Efficiency, 130

LT1302

High Output Current Micropower DC/DC Converter

5V/600mA from 2V, 2A Internal Switch, 200

LT1304

2-Cell Micropower DC/DC Converter

Low-Battery Detector Active in Shutdown, 5V at 200mA for 2 Cells

LT1307

Single Cell Micropower 600kHz PWM DC/DC Converter

3.3V at 75mA from 1 Cell, MSOP Package

LT1316

Micropower DC/DC Converter with Programmable Peak

Works with High Source Impedance, 1.5V Minimum Input, Low-Battery

Current Limit

Detector Active in Shutdown, 33

LTC1440/1/2

Ultralow Power Single/Dual Comparators with Reference

2.8

LTC1516

2-Cell to 5V Regulated Charge Pump

12

LT1521

Micropower Low Dropout Linear Regulator

500mV Dropout, 300mA Current, 12

RELATED PARTS

Dimensions in inches (millimeters) unless otherwise noted.

S8 Package

8-Lead Plastic Small Outline (Narrow 0.150)

(LTC DWG # 05-08-1610)

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)

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)

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

*

**

SW

FB

LT1308

L1A

N = 1

10

µH

L1C

N = 0.3

R4

47k

R1

100k

5V

175mA

3.3V

175mA

CCD BIAS

–10V

10mA

CCD BIAS

18V

10mA

1.6V

TO 6V

R3

340k

R2

2.08M

D1

C7

22nF

C8

1nF

1308 TA01

C6

10

µF

GND

SHDN

C1, C2, C3 = AVX TPS

C4, C5 = AVX TAJ

C6 = CERAMIC

1

8

2

3

L1B

N = 0.7

3

4

C2

100

µF

C1

100

µF

+

D2

D3

D4

+

C3

100

µF

+

C4

10

µF

+

C5

10

µF

+

L1D

N = 3.5

7

6

L1E

N = 2

6

5

D1, D2 = IR10BQ015

D3, D4 = BAT-85

L1 = COILTRONICS CTX02-13973