Rainbow-electronics MAX1595 Bedienungsanleitung PDF herunterladen

For pricing delivery, and ordering information please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

OUT

CXP

CXN

PGNDGND

SHDN

AOUT

MAX1595

µMAX

TOP VIEW

OUTPUT

OUT

INPUT

SHDN

GND

CXN CXP

PGND

AOUT

MAX1595

Regulated 3.3V/5.0V Step-Up/Step-Down

Charge Pump

Maxim Integrated Products 1

Typical Operating Circuit

19-2107; Rev 1; 8/02

General Description

The MAX1595 charge-pump regulator generates either

3.3V or 5V from a 1.8V to 5.5V input. The unique control

architecture allows the regulator to step up or step

down the input voltage to maintain output regulation.

The 1MHz switching frequency, combined with a

unique control scheme, allows the use of a ceramic

capacitor as small as 1µF for 125mA of output current.

The complete regulator requires three external capaci-

tors—no inductor is needed. The MAX1595 is specifi-

cally designed to serve as a high-power, high-

efficiency auxiliary supply in applications that demand

a compact design. The MAX1595 is offered in space-

saving 8-pin µMAX and high-power 12-pin thin QFN

packages.

Applications

White LED Power

Flash Memory Supplies

Battery-Powered Applications

Miniature Equipment

PCMCIA Cards

3.3V to 5V Local Conversion Applications

Backup-Battery Boost Converters

3V to 5V GSM SIMM Cards

Features

♦ Ultra-Small: Requires Only Three Ceramic

Capacitors

♦ No Inductors Required

♦ Up to 125mA Output Current

♦ Regulated ±3% Output Voltage

♦ 1MHz Switching Frequency

♦ 1.8V to 5.5V Input Voltage

♦ 220µA Quiescent Current

♦ 0.1µA Shutdown Current

♦ Load Disconnect in Shutdown

Ordering Information

PART TEMP RANGE PIN-PACKAGE

MAX1595EUA33 -40°C to +85°C

8 µMAX

MAX1595ETC33

-40°C to +85°C

12 Thin QFN

MAX1595EUA50

-40°C to +85°C

8 µMAX

MAX1595ETC50

-40°C to +85°C

12 Thin QFN

Pin Configurations continued at end of data sheet.

Selector Guide

PART V

OUT

* TOP M ARK

MAX1595EUA33 3.3V

—

MAX1595ETC33

3.3V

AAAP

MAX1595EUA50

5.0V

—

MAX1595ETC50

5.0V

AAAM

*Contact factory for other fixed-output voltages from 2.7V to 5.0V.

Pin Configurations

1 2 3 4 5 6 7 8

Charge Pump 1

Inhaltsverzeichnis

Seite 1 - Charge Pump

For pricing delivery, and ordering information please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.123

Seite 2

MAX1595Regulated 3.3V/5.0V Step-Up/Step-DownCharge Pump2 _______________________________________________________________________________________ABSOLU

Seite 3

MAX1595Regulated 3.3V/5.0V Step-Up/Step-DownCharge Pump_______________________________________________________________________________________ 3______

Seite 4

Detailed DescriptionThe MAX1595 charge pump provides either a 3.3V or 5Vregulated output. It delivers a maximum 125mA load cur-rent. In addition, to b

Seite 5

MAX1595Regulated 3.3V/5.0V Step-Up/Step-DownCharge Pump_______________________________________________________________________________________ 5exceed

Seite 6

MAX1595Regulated 3.3V/5.0V Step-Up/Step-DownCharge Pump6 _______________________________________________________________________________________Chip I

Seite 7

MAX1595Regulated 3.3V/5.0V Step-Up/Step-DownCharge Pump_______________________________________________________________________________________ 78LUMAX

Seite 8

MAX1595Regulated 3.3V/5.0V Step-Up/Step-DownCharge PumpMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embod

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Rainbow-electronics MAX1595 Bedienungsanleitung

Stöbern Sie online oder laden Sie Bedienungsanleitung nach Sensoren Rainbow-electronics MAX1595 herunter. Rainbow Electronics MAX1595 User Manual Benutzerhandbuch

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