16

LT1316

1316f LT/TP 0298 4K • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 1997

Linear Technology Corporation

Low Profile 2 Cell-to-28V Converter for LCD Bias

SW

FB

7

1

2

65

D1

8

4

3

SHDN

LBI

LBO

LT1316

GND

C2

1

µF

35V

10k

C1

10

µF

2 CELLS

L1

22

µH

28V

5mA

C1: MURATA GRM235Y5V106Z010

C2: SPRAGUE 293D105X9035B2T

C3: 0.33

µF CERAMIC, 50V

C4: 100pF CERAMIC, 50V

D1: BAT-54

L1: MURATA LQH3C220K04

1316 TA05

SHUTDOWN

+

4.32M

C4

100pF

50V

204k

C3

0.33

µF

50V

Bipolar LCD Bias Supply

3.3V TO

4.2V

SW

8

65

1N914

7

4

SHDN

FB

LT1316

GND

3

47k

L1

47

µH

C1

22

µF

16V

C4

3.3

µF

35V

1316 TA14

+

+

1.00M

88.7k

(BAT54 = TWO DIODES IN SOT23)

BAT54

× 2

100pF

13V

0.5mA

–15V

1.5mA

C3

1

µF

35V

C2

1

µF

35V

+

+

2N3904

22k

10k

C1: AVX TAJB226M016R

C2, C3: AVX TAJA105K035R

C4: AVX TAJB335M035R

L1: MURATA LQH3C470

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

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

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