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Data Sheet

FULL DATA SHEET (PDF, 1.0MB) Download   E-Mail

Description

The MAX5088/MAX5089 high-frequency, DC-DC converters with an integrated n-channel power MOSFET provide up to 2A of load current. The MAX5088 includes an internal power MOSFET to enable the design of a nonsynchronous buck topology power supply. The MAX5089 is for the design of a synchronous buck topology power supply. These devices operate from a 4.5V to 5.5V or 5.5V to 23V input voltage and a 200kHz to 2.2MHz resistor-programmable switching frequency. The voltage-mode architecture with a peak switch current-limit scheme provides stable operation up to a 2.2MHz switching frequency. The MAX5088 includes a clock output for driving a second DC-DC converter 180° out-of-phase and a power-on-reset (RESET-bar) output. The MAX5089 includes a power-good output and a synchronous rectifier driver to drive an external low-side MOSFET in the buck converter configuration for high efficiency. The MAX5088/MAX5089 protect against overcurrent conditions by utilizing a peak current limit as well as overtemperature shutdown providing a very reliable and compact power source for point-of-load regulation applications. Additional features include synchronization, internal digital soft-start, and an enable input. The MAX5088/MAX5089 are available in a thermally enhanced, space-saving 16-pin TQFN (5mm x 5mm) package and operate over the -40°C to +125°C temperature range.

Key Features		Applications/Uses
4.5V to 5.5V or 5.5V to 23V Input Voltage Range Output Voltage Adjustable Down to 0.6V 2A Output Current Synchronous Rectifier Driver Output (MAX5089) for Higher Efficiency Resistor-Programmable Switching Frequency from 200kHz to 2.2MHz External Synchronization and Enable (On/Off) Inputs Clock Output for Driving Second Converter 180° Out-Of-Phase (MAX5089) Integrated 150mΩ High-Side n-Channel Power MOSFET Power-On Reset Output (MAX5088)/Power-Good Output (MAX5089) Short-Circuit Protection Thermal-Shutdown Protection Thermally Enhanced 16-Pin TQFN Package Dissipates 2.7W		Automotive Radio Power Supply IP Phones/WLAN Access Points Servers and Networks xDSL Modem Power Supply

Diagram

Typical Application Circuit

Evaluation Kits

MAX5089EVKIT

Reliability Reports

Show FIT data for: MAX5088 MAX5089 Request Reliability Report for: MAX5088 MAX5089

Software/Models

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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
MAX5088	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5088ATE+			TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0072 (PDF) Use pkgcode/variation: T1655+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5088ATE+T			TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0072 (PDF) Use pkgcode/variation: T1655+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5089	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5089ATE+			TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0072 (PDF) Use pkgcode/variation: T1655+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5089ATE+T			TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0072 (PDF) Use pkgcode/variation: T1655+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

New Product Press Release 2006-03-13  Product Ad: Download

Related Products

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