Datasheet > AS1343

AS1343

更新时间： 2024-09-24 06:37:39

品牌	Logo	应用领域
艾迈斯 - AMSCO		转换器升压转换器
页数	文件大小	规格书
17页	1076K
描述
42V, 1-2 Cells, Micropower, DC-DC Boost Converter

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AS1343 数据手册

Datasheet

AS1343

42V, 1-2 Cells, Micropower, DC-DC Boost Converter

1 General Description

2 Key Features

ꢀ

5.5V to 42V Adjustable Output Voltage

The AS1343 boost converter contains a 1.4A internal

switch in a tiny TDFN-10 3x3mm package. The device

operates from a 0.9V to 3.6V supply, and can boost volt-

ages up to 42V output.

0.9V to 3.6V Supply Voltage Range

High Output Currents:

The output voltage can easily be adjusted by an external

resistor divider.

- 30mA @ 12V VOUT, from 1.5V VCC

- 40mA @ 24V VOUT, from 2.5V VCC

The AS1343 uses a unique control scheme providing

the highest efficiency over a wide range of load condi-

tions. An internal 1.4A MOSFET reduces external com-

ponent count, and a fixed high switching frequency

(1MHz) allows for tiny surface-mount components.

ꢀ

Efficiency: Up to 85%

Switching Frequency: 1MHz

Output Disconnect Function

Output Discharge Function

Power-OK Output

The AS1343 also features power-OK circuitry which

monitors the output voltage.

Additionally the AS1343 features a low quiescent supply

current and a shutdown mode to save power. During

shutdown an output disconnect switch separates the

input from the output.

The AS1343 is ideal for LCD or OLED panels with low

current requirements and can also be used in a wide

range of other applications.

Quiescent Current: 22µA

Shutdown Current: 0.1µA

TDFN-10 3x3mm Package

The device is available in a low-profile TDFN-10 3x3mm

package.

3 Applications

The device is ideal for OLED display power supply, LCD

bias generators, mobile/cordless phones, palmtop com-

puters, PDAs and organizers, handy terminals, driving

LEDs or any other portable, battery-powered device.

Figure 1. AS1343 - Typical Application Diagram

VCC = 0.9V

to 3.6V

SWOUT

VOUT

VCC

CIN

VOUT = 5.5V to 42V

COUT

POK

AS1343

Off

GND

PGND

www.austriamicrosystems.com

Revision 1.04

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