MAX1852

更新时间： 2024-09-11 22:57:59

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描述
SC70 Inverting Charge Pumps with Shutdown

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数据手册

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MAX1852 数据手册

19-1792; Rev 0; 9/00

SC70 Inverting Charge Pumps

with Shutdown

General Description

Features

The MAX1852/MAX1853 monolithic, CMOS charge-

pump voltage inverters in the ultra-small SC70 package

feature a low 15Ω output resistance, permitting loads

up to 30mA with maximum efficiency. The MAX1852/

MAX1853 are available with operating frequencies of

50kHz and 200kHz, respectively, allowing optimization

of supply current or external component size. Small

external components and micropower shutdown mode

make these devices ideal for both battery-powered and

board-level voltage conversion applications.

o 30mA Output Current

o Low 15Ω Output Resistance

o 68µA Supply Current (MAX1852)

o Requires Only Two 0.68µF Capacitors (MAX1853)

o +2.5V to +5.5V Input Voltage Range

o 0.1µA Logic-Controlled Shutdown

o Two Switching Frequencies

50kHz (MAX1852)

Oscillator control circuitry and four power-MOSFET

switches are included on-chip. Applications include

generating a negative supply from a +5V or +3.3V logic

supply to power analog circuitry. Both versions come in

a 6-pin SC70 package that is 40% smaller than a

SOT23.

200kHz (MAX1853)

o Slew-Rate Limited to Reduce EMI

o Ultra-Small 6-Pin SC70 Package

Applications

Negative Supply from +5V or +3.3V Logic Supplies

Small LCD Panels

Ordering Information

GaAsFET Bias Supplies

TEMP.

PIN-

TOP

PART

Handy-Terminals, PDAs

RANGE

PACKAGE

MARK

Battery-Operated Equipment

MAX1852EXT

MAX1853EXT

-40°C to +85°C

6 SC70

AAL

AAM

Pin Configuration

Typical Operating Circuit

0.68µF

TOP VIEW

C1+

C1-

OUT

NEGATIVE

OUTPUT

INPUT

OUT

GND

C1+

C1-

2.5V TO 5.5V

-1

30mA

MAX1852

MAX1853

0.68µF

SHDN

OFF

GND

SC70-6

________________________________________________________________ Maxim Integrated Products

For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

12 3 4 5 6 7 8

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与MAX1852相关器件

型号	品牌	获取价格	描述	数据表
MAX1852EXT	MAXIM	获取价格	SC70 Inverting Charge Pumps with Shutdown
MAX1852EXT+	MAXIM	获取价格	Switched Capacitor Converter, 0.03A, 78kHz Switching Freq-Max, CMOS, PDSO6, SC-70, 6 PIN
MAX1852EXT+T	MAXIM	获取价格	Switched Capacitor Converter, 0.03A, 78kHz Switching Freq-Max, CMOS, PDSO6, SC-70, 6 PIN
MAX1852EXT-T	MAXIM	获取价格	Switched Capacitor Converter, 0.03A, 78kHz Switching Freq-Max, CMOS, PDSO6, SC-70, 6 PIN
MAX1853	MAXIM	获取价格	SC70 Inverting Charge Pumps with Shutdown
MAX1853	ADI	获取价格	SC70封装、反相电荷泵，带有关断
MAX1853EXT	MAXIM	获取价格	SC70 Inverting Charge Pumps with Shutdown
MAX1853EXT+T	MAXIM	获取价格	Switched Capacitor Converter, 0.03A, 310kHz Switching Freq-Max, CMOS, PDSO6, SC-70, 6 PIN
MAX1854	MAXIM	获取价格	High-Speed, Adjustable, Synchronous Step-Down Controllers with Integrated Voltage Position
MAX1854EEG	MAXIM	获取价格	High-Speed, Adjustable, Synchronous Step-Down Controllers with Integrated Voltage Position