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Related Links:

Datasheets:
A8498: Wide Input Voltage 3.0 A Step Down Regulator (PDF)

Selection Guides:
Power Management ICs,

Power Management ICs: Switching Regulators

when this product is updated

Technical Publications:
A8498 and A8499: 50V-Capable Step-Down Regulators (PDF)

Press Releases:
A8498: Allegro Announces A New Wide-Input Voltage 3 A Step-Down Regulator

Product Evaluation Kits:
A8498 Product Evaluation Kit

A8498
Wide Input Voltage 3.0 A Step Down Regulator

Features

• 8 to 50 V input range
• Integrated DMOS switch
• Adjustable fixed off-time
• Highly efficient
• Adjustable 0.8 to 24 V output

Description

The A8498 is a step down regulator that will handle a wide input operating voltage range. The A8498 is supplied in a low-profile 8-lead SOIC with exposed pad (package LJ). Applications include:

• Applications with 8 to 50 V input voltage range needing buck regulator for 3.0 A output current
• Consumer equipment power
• Uninterruptible power supplies (lead acid battery charger)
• Automotive telematics: 9 to 16 V input, with higher voltage protection
• 12 V lighter-powered applications (portable DVD, etc.)
• Point of Sale (POS) applications
• Industrial applications with 24 or 36 V bus

Functional Block Diagram

Complete Part Numbers

Part Number	Package Type	RoHS Compliant	Part Composition/ RoHS Data	Temperature	Comments	Samples	Distributor Stock
A8498SLJ-T	8-lead SOT	Yes	view data	-20 °C to  85 °C	new	Due to warehouse relocation, samples will be unavailable until July 21, 2008. Contact your sales rep or purchase from distributor.
A8498SLJTR-T	8-lead SOT	Yes	view data	-20 °C to  85 °C	new	Due to warehouse relocation, samples will be unavailable until July 21, 2008. Contact your sales rep or purchase from distributor.

Allegro's products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system.