MAX828 ON, MAX828 Datasheet

MAX828

Manufacturer Part Number

MAX828

Description

Switched Capacitor Voltage Converters

Manufacturer

Datasheet

1.MAX828.pdf (12 pages)

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Download datasheet (174Kb)

MAX828 MAX829

Switched Capacitor

Voltage Converters

ultra–small SOT–23 5 lead packages. They invert and/or double an

input voltage which can range from +1.5V to +5.5V. Conversion

efficiency is typically >95%. Switching frequency is 12kHz for the

MAX828 and 35kHz for the MAX829.

nominal) for standard voltage inverter applications. With a few

additional components a positive doubler can also be built. All other

circuitry, including control, oscillator, power MOSFETs are integrated

on–chip. Supply current is 50 A (MAX828) and 115 A (MAX829).

surface mount package.

Features

Typical Applications

February, 2000 – Rev. 0

The MAX828/829 are CMOS “charge–pump” voltage converters in

External component requirement is only two capacitors (3.3 F

The MAX828 and MAX829 are available in a SOT–23 5 lead

Charge Pump in SOT–23 5 Lead Package

>95% Voltage Conversion Efficiency

Voltage Inversion and/or Doubling

Low 50 A (MAX828) Quiescent Current

Operates from +1.5V to +5.5V

Up to 25 mA Output Current

Only Two External Capacitors Required

Tested Operating Temperature Range: –40 C to +85 C

LCD Panel Bias

Cellular Phones

Pagers

PDAs, Portable Dataloggers

Battery–Powered Devices

Semiconductor Components Industries, LLC, 1999

TYPICAL OPERATING CIRCUIT

C +

C –

GND

Voltage Inverter

OUT

V in

INPUT

V –

OUTPUT

MAX828SNTR

MAX829SNTR

Device

NOTE: *SOT–23–5 is equivalent to EIAJ–SC74A

ORDERING INFORMATION

PRELIMINARY INFORMATION

OUT

V in

C –

PIN CONFIGURATION

http://onsemi.com

SOT–23–5*

SN SUFFIX

(Top View)

SOT–23–5

CASE TBD

SOT–23–5

Package

Publication Order Number:

3000 Tape/Reel

C +

GND

Shipping

MAX828/D

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