Datasheet > EUP3418

EUP3418

更新时间： 2024-11-20 11:44:51

品牌	Logo	应用领域
德信 - EUTECH		转换器软启动
页数	文件大小	规格书
1页	96K
描述
1.5MHz, 1A Synchronous Step-Down Converter with Soft Start

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EUP3418 数据手册

EUP3418

1.5MHz, 1A Synchronous Step-Down

Converter with Soft Start

DESCRIPTION

FEATURES

ꢀ

25ꢀA Quiescent Current at Light Load

High Efficiency up to 96%

The EUP3418 is a constant frequency, current mode,

PWM step-down converter. The device integrates a

main switch and a synchronous rectifier for high

efficiency. The 2.7V to 5.5V input voltage range makes

the EUP3418 ideal for powering portable equipment

that runs from a single cell Lithium-Ion (Li+) battery or

3-cell NiMH/ NiCd batteries. The output voltage can be

regulated as low as 0.6V. The EUP3418 supports up to

1A load current and can also run at 100% duty cycle for

low dropout applications, extending battery life in

portable systems.

1.5MHz Constant Switching Frequency

1A Available Load Current

2.7V to 5.5V Input Voltage Range

Adjustable Output Voltage as Low as 0.6V

100% Duty Cycle Low Dropout Operation

No Schottky Diode Required

Short Circuit and Thermal Protection

Excellent Line and Load Transient Response

＜1µA Shutdown Current

Switching frequency is internally set at 1.5MHz,

allowing the use of small surface mount inductors and

capacitors. The internal synchronous switch increases

efficiency while eliminates the need for an external

Schottky diode.

Soft Start Function

Available in SOT23-5, TSOT23-5 Package

RoHS Compliant and 100% Lead(Pb)-Free

Halogen-Free

APPLICATIONS

ꢀ

Cellular and Smart Phones

Portable Media Players/ MP3 Players

Digital Still and Video Cameras

Portable Instruments

WLAN PC Cards

Typical Application Circuit

Figure 1. Adjustable Output

DS3418 Ver1.3 Apr. 2011

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