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Data Sheet

FULL DATA SHEET (PDF, 408kB) Download   E-Mail

Description

The MAX1817 is a compact, high-efficiency, dual-output step-up converter for portable devices that provides both the main logic supply and the LCD bias. The device operates from an input voltage of +1.5V to +5.5V, allowing the use of 2- or 3-cell alkaline batteries, or 1-cell lithium-ion (Li+) batteries. The MAX1817's main regulator supplies 125mA at either a preset 3.3V or an adjustable 2.5V to 5.5V output voltage with up to 88% efficiency. A 0.1µA shutdown state also minimizes battery drain. The MAX1817's secondary step-up converter provides the LCD bias voltage and is adjustable up to +28V. Other features include a fast switching frequency to reduce the size of external components and a low quiescent current to maximize battery life. Both outputs can be independently shut down for improved flexibility. The MAX1817 is supplied in a compact 10-pin µMAX package. The MAX1817 evaluation kit (MAX1817EVKIT) is available to speed up design.

Key Features		Applications/Uses
Dual Step-Up Converter in a Tiny 10-Pin µMAX Package Main Output Up to 125mA Load Current Fixed 3.3V or Adjustable 2.5V to 5.5V Up to 88% Efficiency Internal Switch LCD Output Up to 28V for LCD Bias Internal Switch Input Voltage Range +1.5V to +5.5V Minimal External Components Required 0.1µA Logic-Controlled Shutdown Low 15µA Quiescent Supply Current		GPS Receivers MP3 Players Organizers/Translators PDAs

Diagram

Typical Operating Circuit

Evaluation Kits

MAX1817EVKIT

Reliability Reports

Show FIT data for: MAX1817 Request Reliability Report for: MAX1817

Software/Models

none

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-4 of 4
MAX1817	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1817EUB			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1817EUB-T			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1817EUB+			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1817EUB+T			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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