Datasheet > LM2760M5X

LM2760M5X

更新时间： 2024-11-12 22:51:55

品牌	Logo	应用领域
美国国家半导体 - NSC		转换器开关
页数	文件大小	规格书
10页	241K
描述
3.3V Regulated Switched Capacitor Voltage Converter

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LM2760M5X 数据手册

December 2002

LM2760

3.3V Regulated Switched Capacitor Voltage Converter

General Description

Features

n 3.3V 4% Regulated Output

The LM2760 is a switched-capacitor DC/DC converter that

generates a regulated 3.3V output capable of driving a load

up to 20mA (V_IN≥ 2.5V). The wide input voltage range

(2.0V-4.4V) allows this device to be powered from several

types of batteries, including single cell lithium-ion, two-cell

alkaline, nickel-metal-hydride, and nickel-cadmium. The

LM2760 solution does not require an inductor and needs

only three small external ceramic capacitors. The miniscule

quiescent current of the part, typically 10µA unloaded,

makes the LM2760 ideal for low-current standby power rails.

n Ultralow Power: 10µA Typical Supply Current

n Boost and Pass Modes for Improved Efficiency

n Input Voltage Range: 2.0V to 4.4V

n Output Current up to 20mA (V_IN≥ 2.5V)

n Output Current up to 10mA (V_IN≥ 2.0V)

n Inductorless solution

n Small external parts count: 3 ceramic capacitors

n 750kHz Switching Frequency

n SOT23-5 Package

n Short-Circuit and Thermal Protection

The LM2760 is a switched-capacitor circuit that is controlled

by a gated oscillator. Both a low-input-voltage boost mode

and high-input-voltage pass mode are implemented to opti-

mize efficiency over the full input voltage range.

Applications

Additional features of the LM2760 include thermal protection

and current limiting. The LM2760 is available in a small,

five-pin SOT-23 package.

n Battery-Operated Devices

n Cellular Phone

n Standby Power Supply

n Memory Keep-alive Power

Typical Application Circuit

20044301

DS200443

www.national.com

12 3 4 5 6 7...10

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与LM2760M5X相关器件

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