MAX1674

PRODUCTION

MAX1674

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

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

PRODUCTION

MAX1674, MAX1675, MAX1676: Typical Operating Circuit slide

MAX1674, MAX1675, MAX1676: Typical Operating Circuit

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1ku List Price Starting From $2.53

Features

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)

Additional Details

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 V_OUT, where V_OUT 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.

Applications

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

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Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

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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.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 2

1ku List Price Starting From $2.53

Technical Documents 4

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

MAX1674 Reliability Data 01/12/2023

Protecting Against Momentary Power Loss Due to Battery-Bounce 06/21/2004

Protection From Blackouts: Dirt Cheap to Fully Integrated 05/11/2003

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
MAX1674EUA+	Micro-MAX, Thin Shrink Small-Outline	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX1674EUA+T	Micro-MAX, Thin Shrink Small-Outline	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys