MAX1697

更新时间： 2024-11-08 22:57:59

品牌	Logo	应用领域
美信 - MAXIM		泵
页数	文件大小	规格书
12页	223K
描述
60mA, SOT23 Inverting Charge Pump with Shutdown

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MAX1697 数据手册

19-1499; Rev 0; 7/99

60mA, SOT23 Inverting Charge Pump

with Shutdown

MAX1697

General Description

Features

The MAX1697 ultra-small, monolithic, CMOS charge-

pump voltage inverter accepts an input voltage ranging

from +1.25V to +5.5V. This device features an ultra-low

12Ω output resistance, permitting loads of up to 60mA

with maximum efficiency. The MAX1697 is available

with operating frequencies of 12kHz, 35kHz, 125kHz, or

250kHz, allowing optimization of supply current or

external component size. Its small external components

and micropower shutdown mode make this device

ideal for both battery-powered and board-level voltage

conversion applications.

♦ 60mA Output Current

♦ Low 12Ω Output Resistance

♦ 150µA Supply Current (MAX1697R)

♦ Requires Only Two 1µF Capacitors (MAX1697U)

♦ Start-Up Current Limited

♦ +1.25V to +5.5V Input Voltage Range

♦ 0.1µA Logic-Controlled Shutdown

♦ Slew-Rate Limited to Reduce EMI

♦ 6-Pin SOT23 Package

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. All versions come in a

6-pin SOT23 package and deliver 60mA.

Ordering Information

For applications with lower current requirements, the

MAX1719/MAX1720/MAX1721 are pin-compatible

SOT23 charge pumps that supply up to 25mA.

PART

TEMP. RANGE

PIN-PACKAGE

MAX1697_EUT-T

-40°C to +85°C

6 SOT23-6

Note: The MAX1697 is available with four different operating

frequencies. Choose the desired frequency from the table

below and insert the suffix in the blank above to complete the

part number.

Applications

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

Small LCD Panels

PART NO.

SUFFIX

FREQUENCY

(kHz)

TOP

MARK

GaAsFET Bias Supplies

AABV

AABW

AABX

AABY

Handy-Terminals, PDAs

Battery-Operated Equipment

125

250

Pin Configuration

Typical Operating Circuit

1µF

TOP VIEW

C1+

C1-

OUT

NEGATIVE

OUTPUT

INPUT

OUT

C1+

1.5V to 5.5V

-1 · V

60mA

MAX1697

SHDN

GND

MAX1697U

GND

1µF

SHDN

C1-

OFF

SOT23-6

________________________________________________________________ Maxim Integrated Products

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

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

12 3 4 5 6 7...12

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与MAX1697相关器件

型号	品牌	获取价格	描述	数据表
MAX1697_08	MAXIM	获取价格	60mA, SOT23 Inverting Charge Pump with Shutdown
MAX1697_EUT-T	MAXIM	获取价格	60mA, SOT23 Inverting Charge Pump with Shutdown
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MAX16971GEEB/V+	MAXIM	获取价格	3A Automotive Hi-Speed USB Protectors with Apple iPhone/iPad and USB 2.0 Charge Detection
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