1

LT1610

1.7MHz, Single Cell

Micropower

DC/DC Converter

s

Uses Tiny Capacitors and Inductor

s

Internally Compensated

s

Low Quiescent Current: 30

s

s

3V at 30mA from a Single Cell

s

5V at 200mA from 3.3V

s

High Output Voltage Capability: Up to 28V

s

Low Shutdown Current: < 1

µA

s

Automatic Burst Mode

s

s

8-Lead MSOP and SO Packages

The LT

converter that operates from an input voltage as low as 1V.

Intended for small, low power applications, it switches at

1.7MHz, allowing the use of tiny capacitors and inductors.

The device can generate 3V at 30mA from a single cell

(1V) supply. An internal compensation network can be

nal components. No-load quiescent current of the LT1610

is 30

µA, and the internal NPN power switch handles a

300mA current with a voltage drop of 300mV.

The LT1610 is available in 8-lead MSOP and SO packages.

Burst Mode is a trademark of Linear Technology Corporation.

Figure 1. 1-Cell to 3V Step-Up Converter

Efficiency

s

Pagers

s

Cordless Phones

s

Battery Backup

s

LCD Bias

s

Portable Electronic Equipment

FEATURES

DESCRIPTIO

APPLICATIO S

TYPICAL APPLICATIO

, LTC and LT are registered trademarks of Linear Technology Corporation.

C2

22

µF

C1

22

µF

1 CELL

L1

4.7

µH

D1

3V

30mA

C1, C2: AVX TAJA226M006R

D1: MOTOROLA MBR0520

L1: MURATA LQH1C4R7

1610 F01

+

+

R1

1M

R2

681k

65

2

7

4

1

8

3

SW

PGND

FB

SHDN

GND

COMP

LT1610

LOAD CURRENT (mA)

0.1

85

80

75

70

65

60

55

50

1

10

100

1610 TA01