Datasheet > AUR9719

AUR9719

更新时间： 2024-11-29 12:52:03

品牌	Logo	应用领域
BCDSEMI		转换器 DC-DC转换器
页数	文件大小	规格书
19页	748K
描述
1.5MHz, 2A, STEP DOWN DC-DC CONVERTER

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AUR9719 数据手册

Data Sheet

1.5MHz, 2A, STEP DOWN DC-DC CONVERTER

AUR9719

Features

General Description

•

High Efficiency Buck Power Converter

Output Current: 2A

The AUR9719 is a high efficiency step-down

DC-DC voltage converter. The chip operation is

optimized by peak-current mode architecture with

built-in synchronous power MOS switchers. The

oscillator and timing capacitors are all built-in

providing an internal switching frequency of

1.5MHz that allows the use of small surface mount

inductors and capacitors for portable product

implementations.

Low R_DS(ON)Internal Switch: 100mΩ

Adjustable Output Voltage from 0.8V to 9×V_IN

Wide Operating Voltage Range: 2.7V to 5.5V

Built-in Power Switches for Synchronous

Rectification with High Efficiency

800mV Feedback Voltage

1.5MHz Constant Frequency Operation

Thermal Shutdown Protection

•

Low Drop-out Operation at 90% Duty Cycle

No Schottky Diode Required

Integrated Soft Start (SS), Under Voltage Lock Out

(UVLO), Thermal Shutdown Detection (TSD) and

Short Circuit Protection are designed to provide

reliable product applications.

Applications

The device is available in adjustable output voltage

versions ranging from 0.8V to 9×V_INwhen input

voltage range is from 2.7V to 5.5V , and is able to

deliver up to 2.0A.

•

LCD TV

Set Top Box

Post DC-DC Voltage Regulation

PDA and Notebook Computers

The AUR9719 is available in DFN-3×3-6 package.

DFN-3×3-6

Figure 1. Package Type of AUR9719

Nov. 2011 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

12 3 4 5 6 7...19

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