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547799

更新时间： 2022-06-02 09:44:20

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美信 - MAXIM		开关
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描述
Switched-Capacitor Voltage Doublers

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547799 数据手册

19-1305; Rev 3; 11/10

Switched-Capacitor Voltage Doublers

2/MAX1683

General Description

____________________________Features

♦ 5-Pin SOT23 Package

The ultra-small MAX1682/MAX1683 monolithic, CMOS

charge-pump voltage doublers accept input voltages

ranging from +2.0V to +5.5V. Their high voltage-con-

version efficiency (over 98%) and low operating current

(110µA for MAX1682) make these devices ideal for

both battery-powered and board-level voltage-doubler

applications.

♦ +2.0V to +5.5V Input Voltage Range

♦ 98% Voltage-Conversion Efficiency

♦ 110µA Quiescent Current (MAX1682)

♦ Requires Only Two Capacitors

♦ Up to 45mA Output Current

Oscillator control circuitry and four power MOSFET

switches are included on-chip. The MAX1682 operates

at 12kHz, and the MAX1683 operates at 35kHz. A typi-

cal application includes generating a 6V supply to

power an LCD display in a hand-held PDA. Both parts

are available in a 5-pin SOT23 package and can deliver

30mA with a typical voltage drop of 600mV.

Ordering Information

________________________Applications

Small LCD Panels

Cell Phones

Handy-Terminals

PDAs

TEMP

RANGE

PIN-

SOT

PART

PACKAGE TOP MARK

MAX1682EUK+T -40°C to +85°C 5 SOT23-5

MAX1683EUK+T -40°C to +85°C 5 SOT23-5

ACCL

ACCM

Note: These parts are available in tape-and-reel only. Minimum

order quantity is 2500 pieces.

+Denotes a lead(Pb)-free/RoHS-compliant package.

T = Tape and reel.

Typical Operating Circuit

INPUT

SUPPLY

VOLTAGE

C1+

Pin Configuration

MAX1682

MAX1683

TOP VIEW

C1-

GND

OUT

C1-

C1+

OUTPUT

VOLTAGE

OUT

MAX1682

MAX1683

2 x V

GND

SOT23-5

VOLTAGE DOUBLER

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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