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MAX1697_EUT-T

更新时间： 2024-02-29 13:21:30

品牌	Logo	应用领域
美信 - MAXIM		泵
页数	文件大小	规格书
13页	370K
描述
60mA, SOT23 Inverting Charge Pump with Shutdown

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MAX1697_EUT-T 数据手册

19-1499; Rev 3; 12/08

60mA, SOT23 Inverting Charge Pump

with Shutdown

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

♦ Slew-Rate Limited to Reduce EMI

Ordering Information

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.

PART

TEMP RANGE

PIN-PACKAGE

MAX1697_EUT-T

6 SOT23

-40°C to +85°C

Note 1: The MAX1697 requires special solder temperature pro-

file described in the Absolute Maximum Ratings section.

For applications with lower current requirements, the

MAX1719/MAX1720/MAX1721 are pin-compatible

SOT23 charge pumps that supply up to 25mA.

Note 2: 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

TOP MARK

PART NO.

SUFFIX

FREQUENCY

(kHz)

-T

AABV

AABW

AABX

AABY

AABV

ACBT

ACCK

ACCL

ACCM

Small LCD Panels

AABW

AABX

GaAsFET Bias Supplies

125

250

Handy-Terminals, PDAs

AABY

Battery-Operated Equipment

Note 3: MAX1697 is available in different package material.

Add the following suffix to the part number when ordering:

-T = Denotes a package containing lead(Pb).

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

#T = Denotes an RoHS-compliant device that may include

lead(Pb) that is exempt under the RoHS requirements.

Pin Configuration

Typical Operating Circuit

TOP VIEW

1μF

OUT

C1+

C1-

OUT

NEGATIVE

OUTPUT

INPUT

1.5V to 5.5V

MAX1697

SHDN

GND

-1

60mA

MAX1697U

C1-

1μF

SHDN

SOT23

OFF

GND

Note 4: Leaded and lead-free top marks are identical. Per

Maxim guideline, the pin 1 indicator for leaded package is

a ‘•’ and the lead-free package is a ‘+’.

________________________________________________________________ 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.

12 3 4 5 6 7...13

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