LT3460-1 datasheet(1/12 Pages) LINER

Part #	LT3460-1

Description	1.3 MHz/650kHz Step-Up DC/DC Converter in SC70, ThinSOT and DFN

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LT3460/LT3460-1

1

3460fb

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION

1.3 MHz/650kHz Step-Up

DC/DC Converter in SC70,

ThinSOT and DFN

The LT®3460/LT3460-1 are general purpose step-up DC/

DC converters. The LT3460/LT3460-1 switch at 1.3MHz/

650kHz, allowing the use of tiny, low cost and low height

capacitors and inductors. The constant frequency results

in low, predictable output noise that is easy to ﬁlter.

The high voltage switches in the LT3460/LT3460-1 are

rated at 38V, making the device ideal for boost converters

up to 36V. The LT3460 can generate 12V at up to 70mA

from a 5V supply.

The low 1mA quiescent current and 650kHz switching

frequency of LT3460-1 make it ideal for lower current

applications.

The LT3460 is available in SC70 and SOT-23 packages.

The LT3460-1 is available in SC70 and 2mm × 2mm DFN

packages.

5V to 12V, 70mA Step-Up DC/DC Converter

n 1.3MHz (LT3460) Switching Frequency

n 650kHz (LT3460-1) Switching Frequency

n High Output Voltage: Up to 36V

n 300mA Integrated Switch (LT3460)

n 180mA Integrated Switch (LT3460-1)

n Wide Input Range: 2.5V to 16V

n Uses Small Surface Mount Components

n Low Shutdown Current: <1μA

n Low Proﬁle (1mm) SC70 (LT3460 and LT3460-1),

SOT-23 (ThinSOT™) (LT3460) and 2mm × 2mm DFN

(LT3460-1) Packages

n Digital Cameras

n CCD Bias Supply

n XDSL Power Supply

n TFT-LCD Bias Supply

n Local 5V or 12V Supply

n Medical Diagnostic Equipment

n Battery Backup

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ThinSOT is

a trademark of Linear Technology Corporation. All other trademarks are the property of their

respective owners.

Efﬁciency

Switching Waveforms

LOAD CURRENT (mA)

0

90

85

80

75

70

65

60

20

40

60

80

3460 F01a

0.2μs/DIV

3460 F01b

IL

100mA/DIV

VSW

5V/DIV

OFF ON

VIN

5V

22μH

130k

15k

1μF

22pF

4.7μF

VOUT

12V

70mA

VIN

SW

FB

SHDN

GND

LT3460

3460 F01

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LT3460-1 Datasheet(PDF) 1 Page - Linear Technology

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