MAX828

PRODUCTION

MAX828

Switched-Capacitor Voltage Inverters

Inductorless Power Supply for Pager LCD

PRODUCTION

MAX828, MAX829: Typical Operating Circuit slide

MAX828, MAX829: Typical Operating Circuit

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1ku List Price Starting From $2.58

Features

5-Pin SOT23-5 Package
95% Voltage Conversion Efficiency
Inverts Input Supply Voltage
60µA Quiescent Current (MAX828)
+1.5V to +5.5V Input Voltage Range
Requires Only Two Capacitors
25mA Output Current

Additional Details

The ultra-small MAX828/MAX829 monolithic, CMOS charge-pump inverters accept input voltages ranging from +1.5V to +5.5V. The MAX828 operates at 12kHz, and the MAX829 operates at 35kHz. Their high efficiency (greater than 90% over most of the load-current range) and low operating current (60µA for the MAX828) make these devices ideal for both battery-powered and board-level voltage-conversion applications.

The MAX828/MAX829 combine low quiescent current and high efficiency. Oscillator control circuitry and four power MOSFET switches are included on-chip. Applications include generating a -5V supply from a +5V logic supply to power analog circuitry. Both parts come in a 5-pin SOT23-5 package and can deliver 25mA with a voltage drop of 500mV.

For a similar device with logic-controlled shutdown, refer to the MAX1719/MAX1720/MAX1721. For applications requiring more power, the MAX860 delivers up to 50mA with a voltage drop of 600mV, in a space-saving µMAX® package.

Applications

Battery-Powered Applications
Cell Phones
Handy-Terminals, PDAs
Medical Instruments
Small LCD Panels

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

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FAQs

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Part Models 2

1ku List Price Starting From $2.58

Technical Documents 5

MAX828-MAX829: Switched-Capacitor Voltage Inverters Data Sheet (Rev.3) 05/03/2000

MAX828 Reliability Data 01/12/2023

Tiny Charge Pump Provides Highly Reliable Low-Cost Solution to Negative Reference Voltage 12/01/2000

Choosing the Right Power-Supply IC for your Application 11/29/2001

Guide to Integrated Charge Pump DC-DC Conversion 11/29/2001

Design Resources 2

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX828EUK+	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX828EUK+T	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys