Maxim > Products > Power and battery management > MAX1674, MAX1675, MAX1676

MAX1674, MAX1675, MAX1676
High-Efficiency, Low-Supply-Current, Compact, Step-Up DC-DC Converters

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

Overview

Technical Documents

Ordering Info

User Comments (0)

All

Status

Active: In Production.

Description

FULL DATA SHEET Download Rev 3 (PDF, 536kB) E-Mail The MAX1674/MAX1675/MAX1676 compact, high-efficiency, step-up DC-DC converters fit in small µMAX packages. They feature a built-in synchronous rectifier, which improves efficiency and reduces size and cost by eliminating the need for an external Schottky diode. Quiescent supply current is only 16µA. The input voltage ranges from 0.7V to VOUT, where VOUT can be set from 2V to 5.5V. Start-up is guaranteed from 1.1V inputs. The MAX1674/MAX1675/MAX1676 have a preset, pin-selectable output for 5V or 3.3V. The outputs can also be adjusted to other voltages using two external resistors. All three devices have a 0.3Ω N-channel MOSFET power switch. The MAX1674 has a 1A current limit. The MAX1675 has a 0.5A current limit, which permits the use of a smaller inductor. The MAX1676 comes in a 10-pin µMAX package and features an adjustable current limit and circuitry to reduce inductor ringing.

An evaluation kit is available: MAX1676EVKIT

Key Features		Applications/Uses
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)		1- to 3-Cell Handheld Devices Handheld Computers Medical Devices Pagers PDAs RF Tags Wireless Phones

Diagram

Typical Operating Circuit

Notes and Comments

MAX1674 has 1A current limit. MAX1675 has 0.5A current limit. MAX1676 has adjustable current limit. Low quiescent current

Related Products
MAX1676EVKIT	Evaluation Kit for the MAX1676
More Like This: View Product Families for Similar Products See All Step-Up Switching Regulators (95 Products)

Didn't Find What You Need?

Next Day Product Selection Assistance from Applications Engineers Parametric Search Applications Help

Document Ref.: 19-1360 Rev 3; 2000-03-01
This page last modified: 2007-06-01