Datasheet > A7231A

A7231A

更新时间： 2024-11-24 01:15:03

品牌	Logo	应用领域
创瑞 - AITSEMI		DC-DC转换器
页数	文件大小	规格书
13页	596K
描述
DC-DC CONVERTER BUCK

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中文翻译

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数据手册

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A7231A 数据手册

AiT Semiconductor Inc.

A7231A

DC-DC CONVERTER BUCK (STEP-DOWN)

500kHz, 3A, 16V SYNCHRONOUS

www.ait-ic.com

DESCRIPTION

FEATURES

The A7231A is a fully integrated, high-efficiency 3A

synchronous rectified step-down converter. The

A7231A operates at high efficiency over a wide

output current load range.



High Efficiency: Up to 96%

500kHz Frequency Operation

3A Output Current

No Schottky Diode Required

This device offers two operation modes, PWM

control and PFM Mode switching control, which

allows a high efficiency over the wider range of the

load.

4.2V to 16V Input Voltage Range

0.8V Reference

Slope Compensated Current Mode Control for

Excellent Line and Load Transient Response

Integrated internal compensation

Stable with Low ESR Ceramic Output

Capacitors



The A7231A is available in SOT-26 package.



Over Current Protection with Hiccup-Mode

Thermal Shutdown

ORDERING INFORMATION

Inrush Current Limit and Soft Start

-40°C to +85°C Temperature Range

Available in SOT-26 Package

Package Type

Part Number

A7231AE6R

A7231AE6VR

SOT-26

APPLICATION

SPQ: 3,000pcs/Reel

V: Halogen free Package

R: Tape & Reel



Distributed Power Systems

Note

Digital Set Top Boxes

Flat Panel Television and Monitors

Wireless and DSL Modems

Notebook Computer

AiT provides all RoHS products

TYPICAL APPLICATION

Figure 1.

Figure 2.

NOTE1: C1 and C2 recommended using 22uF ceramic capacitors. If the electrolytic capacitor is used, it is recommended that the ceramic

capacitor in parallel with a capacitance value of 0.1uF or more.

2: The resistance R3 in Figure 1 makes the loop more stable. If it isn’t used, the resistance R1、R2 should be adjusted(See Figure2.).

The value of R1 is recommended to be about 300kΩ.

3: C3 can be valued as 1uF, 0.1uF.

REV1.0

- MAY 2018 RELEASED -

- 1 -

12 3 4 5 6 7...13

中文翻译

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