Datasheet > LM2665

LM2665

更新时间： 2024-11-23 00:01:07

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
9页	208K
描述
Switched Capacitor Voltage Converter

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LM2665 数据手册

November 1999

LM2665

Switched Capacitor Voltage Converter

General Description

The LM2665 CMOS charge-pump voltage converter oper-

ates as a voltage doubler for an input voltage in the range of

Features

n Doubles or Splits Input Supply Voltage

n SOT23-6 Package

+2.5V to +5.5V. Two low cost capacitors and

a diode

n 12Ω Typical Output Impedance

(needed during start-up) are used in this circuit to provide up

to 40 mA of output current. The LM2665 can also work as a

voltage divider to split a voltage in the range of +1.8V to

+11V in half.

n 90% Typical Conversion Efficiency at 40 mA

n 1µA Typical Shutdown Current

Applications

n Cellular Phones

n Pagers

The LM2665 operates at 160 kHz oscillator frequency to re-

duce output resistance and voltage ripple. With an operating

current of only 650 µA (operating efficiency greater than 90%

with most loads) and 1µA typical shutdown current, the

LM2665 provides ideal performance for battery powered

systems. The device is in SOT-23-6 package.

n PDAs

n Operational Amplifier Power Suppliers

n Interface Power Suppliers

n Handheld Instruments

Basic Application Circuits

Voltage Doubler

DS100049-1

Splitting V_inin Half

DS100049-2

DS100049

www.national.com

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与LM2665相关器件

型号	品牌	获取价格	描述	数据表
LM2665M6	TI	获取价格	LM2665 Switched Capacitor Voltage Converter
LM2665M6	NSC	获取价格	Switched Capacitor Voltage Converter
LM2665M6/NOPB	TI	获取价格	输入电压为 1.8V 至 5.5V 的开关电容倍压器 \| DBV \| 6 \| -40 to
LM2665M6X	NSC	获取价格	Switched Capacitor Voltage Converter
LM2665M6X	TI	获取价格	LM2665 Switched Capacitor Voltage Converter
LM2665M6X/NOPB	NSC	获取价格	IC SWITCHED CAPACITOR CONVERTER, 160 kHz SWITCHING FREQ-MAX, PDSO6, SOT-23, 6 PIN, Switchi
LM2665M6X/NOPB	TI	获取价格	输入电压为 1.8V 至 5.5V 的开关电容倍压器 \| DBV \| 6 \| -40 to
LM266XW	ETC	获取价格	Optoelectronic
LM2670	NSC	获取价格	SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync
LM2670	TI	获取价格	LM2670 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync