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Data Sheet

FULL DATA SHEET (PDF, 328kB) Download   E-Mail

Description

The MAX1951/MAX1952 high-efficiency, DC-to-DC step-down switching regulators deliver up to 2A of output current. The devices operate from an input voltage range of 2.6V to 5.5V and provide an output voltage from 0.8V to VIN, making the MAX1951/MAX1952 ideal for on-board postregulation applications. The MAX1951 total output error is less than 1% over load, line, and temperature. The MAX1951/MAX1952 operate at a fixed frequency of 1MHz with an efficiency of up to 94%. The high operating frequency minimizes the size of external components. Internal soft-start control circuitry reduces inrush current. Short-circuit and thermal-overload protection improve design reliability. The MAX1951 provides an adjustable output from 0.8V to VIN, whereas the MAX1952 has a preset output of 1.8V. Both devices are available in a space-saving 8-pin SO package. Learn More About PowerMind™

Key Features		Applications/Uses
Compact 0.385in2 Circuit Footprint 10µF Ceramic Input and Output Capacitors, 2µH Inductor for 1.5A Output Efficiency Up to 94% 1% Output Accuracy Over Load, Line, and Temperature (MAX1951, Up to 1.5A) Guaranteed 2A Output Current Operate from 2.6V to 5.5V Supply Adjustable Output from 0.8V to VIN (MAX1951) Preset Output of 1.8V (1.5% Accuracy) (MAX1952) Internal Digital Soft-Soft Short-Circuit and Thermal-Overload Protection		ASIC/DSP/µP/FPGA Core and I/O Voltages Cellular Base Stations Networking and Telecommunications Set-Top Boxes

Diagram

Typical Operating Circuit

Evaluation Kits

MAX1951EVKIT

Reliability Reports

Show FIT data for: MAX1951 MAX1952 Reliability Report: MAX1951ESA.pdf Request Reliability Report for: MAX1952

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: 1-8 of 8
MAX1951	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1951ESA			SOIC;8 pin;31 mm² Dwg: 21-0041B (PDF) Use pkgcode/variation: S8-6F*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1951ESA-T			SOIC;8 pin;31 mm² Dwg: 21-0041B (PDF) Use pkgcode/variation: S8-6F*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1951ESA+			SOIC;8 pin;31 mm² Dwg: 21-0041B (PDF) Use pkgcode/variation: S8+6F*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1951ESA+T			SOIC;8 pin;31 mm² Dwg: 21-0041B (PDF) Use pkgcode/variation: S8+6F*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1952	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1952ESA			SOIC;8 pin;31 mm² Dwg: 21-0041B (PDF) Use pkgcode/variation: S8-6F*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1952ESA-T			SOIC;8 pin;31 mm² Dwg: 21-0041B (PDF) Use pkgcode/variation: S8-6F*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1952ESA+			SOIC;8 pin;31 mm² Dwg: 21-0041B (PDF) Use pkgcode/variation: S8+6F*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1952ESA+T			SOIC;8 pin;31 mm² Dwg: 21-0041B (PDF) Use pkgcode/variation: S8+6F*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

New Product Press Release 2002-11-26  Product Family Ad: Download

Related Products

MAX1945, MAX1945R, MAX1945S 1MHz, 1% Accurate, 6A Internal Switch Step-Down Regulators

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