MAX1676

PRODUCTION

High-Efficiency, Low-Supply-Current, Compact, Step-Up DC-DC Converters

Compact, Low-Cost, Low-Noise Design: Inductor Damping Switch Eliminates Ringing, Improves EMI

Data Sheet (Rev. 3) Product Selection Table

Part Models: 2
1ku List Price: Starting From $2.86

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Part Details

94% Efficient at 200mA Output Current
16µA Quiescent Supply Current
Internal Synchronous Rectifier (no external diode)
0.1µA Logic-Controlled Shutdown
LBI/LBO Low-Battery Detector
Selectable Current Limit for Reduced Ripple
Low-Noise, Anti-Ringing Feature (MAX1676)
8-Pin and 10-Pin µMAX Packages
Preassembled Evaluation Kit (MAX1676EVKIT)

Part Models: 2
1ku List Price: Starting From $2.86

Documentation

Data Sheet 1

MAX1674-MAX1676: High-Efficiency, Low-Supply-Current, Compact, Step-Up DC-DC Converters Data Sheet (Rev.3) 03/01/2000

Design Note 1

Hot-Surface Warning Light Requires No External Power 12/06/2010

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
MAX1676EUB+	10-MINI_SO-N/A	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX1676EUB+T	10-MINI_SO-N/A	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Evaluation Kits

Evaluation Kit for the MAX1676

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Features and Benefits

Synchronous Rectification for Improved Efficiency
Operates Down to 0.7V Input Supply Voltage
No External Schottky Diode Required (for multicell applications)
Selectable Current Limit (0.5A or 1.0A)
Damping Circuit Reduces EMI
16µA Quiescent Current
0.1µA Typical Shutdown Current
Low-Battery Detector (LBI/LBO)
10-Pin µMAX® Package
Surface-Mount Construction
Fully Assembled and Tested

Product Details

The MAX1676 is a high-efficiency, step-up DC-DC converter for portable hand-held devices. It accepts a positive input voltage between 0.7V to 5.5V and converts it to a higher output voltage. The MAX1676 includes a damping circuit (at BATT) that suppresses inductor ringing to reduce electromagnetic interference (EMI).

The MAX1676 evaluation kit (EV kit) is a fully assembled and tested surface-mount printed circuit board. Three jumpers on the EV kit allow for easy access to the output voltage select, current limit, and shutdown features.

The output voltage is both adjustable and pin-selectable. A movable jumper selects either a 3.3V or 5.0V output, or it can be left open and a resistor network can be used to obtain a voltage in the 2V to 5.5V range. The inductor current limit is selectable for either 0.5A or 1.0A. In shutdown mode, the MAX1676 typically draws only 0.1µA.

Applications

1- to 3-Cell Handheld Devices
Handheld Computers
Medical Devices
Pagers
PDAs
RF Tags
Wireless Phones

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