Datasheet > AS1322B

AS1322B

更新时间： 2024-01-30 07:24:46

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	553K
描述
Low Voltage, Micropower, DC-DC Step-Up Converters

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AS1322B 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	TSOP, TSOP6,.11,37	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.8	控制模式：	CURRENT-MODE
JESD-30 代码：	R-PDSO-G6	端子数量：	6
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSOP
封装等效代码：	TSOP6,.11,37	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE	认证状态：	Not Qualified
子类别：	Switching Regulator or Controllers	表面贴装：	YES
最大切换频率：	1500 kHz	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	0.95 mm
端子位置：	DUAL	Base Number Matches：	1

AS1322B 数据手册

austriamicrosystems

Data Sheet

AS1322

Low Voltage, Micropower, DC-DC Step-Up Converters

1 General Description

2 Key Features

ꢀ

95% Efficiency

The AS1322A and the AS1322B are synchronous, fixed

frequency, very high-efficiency DC-DC boost converters

capable of supplying 3.3V at 150mA from a single AA-

supply. Compact size and minimum external parts

requirements make these devices perfect for modern

portable devices.

Single-Cell Operation

Delivers 150mA @ 3.3V (from Single AA Cell)

Delivers 500mA @ 3.3V (from Two AA Cells)

Low Start-Up Voltage: 0.85V

High-speed switching frequency (1.2MHz) and internally

compensated PWM current mode design provide highly-

reliable DC-DC conversion, especially when driving

white LEDs.

High-Speed Fixed-Frequency: 1.2MHz

Internal PMOS Synchronous Rectifier

Automatic Powersave Operation (AS1322A)

Continuous Switching at Light Loads (AS1322B)

Anti-Ringing Control Minimizes EMI

Logic Controlled Shutdown (< 1µA)

Output Range: 2.5 to 5.0V

The converters are available as the standard products

listed in Table 1.

Table 1. Standard Products

Model

Light Load Switching

Automatic Powersave Operation

Continuous Switching

AS1322A

AS1322B

The devices contain two internal MOSFET switches:

one NMOS switch and one PMOS synchronous rectifier.

6-pin TSOT-23 Package

Anti-ringing control circuitry reduces EMI by damping

the inductor in discontinuous mode, and the devices

exhibit extremely low quiescent current (< 1µA) in shut-

down.

3 Applications

The AS1322 is ideal for low-power applications where

ultra-small size is critical as in medical diagnostic equip-

ment, hand-held instruments, pagers, digital cameras,

remote wireless transmitters, MP3 players, LCD bias

supplies, cordless phones, GPS receivers, and PC

cards.

The AS1322 is available in a 6-pin TSOT-23 package.

Figure 1. Typical Application Diagram – Single Cell to 3.3V Synchronous Boost Converter

10µH

V^OUT

3.3V

150mA

AA Battery

VOUT

VIN

10µF

1.02MΩ

AS1322

Off

SHDNN

604kΩ

GND

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与AS1322B相关器件

型号	品牌	描述	获取价格	数据表
AS1322B-BTTT	AMSCO	Low Voltage, Micropower, DC-DC Step-Up Converters	获取价格
AS1323	AMSCO	1.6レA Quiescent Current, Single Cell, DC-DC S	获取价格
AS1323_04	AMSCO	1.6Î¼A Quiescent Current, Single Cell, DC-DC	获取价格
AS1323_1	AMSCO	1.6uA Quiescent Current, Single Cell, DC-DC Step-up Converter	获取价格
AS1323-27	AMSCO	1.6レA Quiescent Current, Single Cell, DC-DC S	获取价格
AS1323-30	AMSCO	1.6レA Quiescent Current, Single Cell, DC-DC S	获取价格

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