Diodes Incorporated AP5101

Description

The AP5101 is a current mode step-down converter with a built-in power MOSFET to enable smallest solution size power conversion.

With the low series resistance power switch it enables a constant output current of up to 1.5A over a wide input supply range. The load and line regulation has excellent response time over the operating input voltage and temperature range.

The AP5101 is self protected, through a cycle-by-cycle current limiting algorithm and an on chip thermal protection.

The AP5101 will provide the voltage conversion with a low count of widely available standard external components.

The AP5101 is available in SO-8 package.

Features

• VIN 4.75 to 22V
• 1.5A Peak Output Current
• Stable with Low ESR Ceramic Output Capacitors
• External compensation
• Up to 92% Efficiency
• 0.1μA Shutdown Mode
• Fixed 1.4MHz Frequency
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Output Adjustable from 0.81V to 15V
• SO-8: Available in “Green” Molding Compound (No Br, Sb)
• Lead Free Finish/ RoHS Compliant (Note 1)

Remarks:A 1μH to 10μH inductor with a DC current rating of at least 25% percent higher than the maximum load current is recommended for most applications.Refer page no.10

Table 2. Suggested Surface Mount InductorsRefer page no.12

Typical applications

• Distributed Power Systems
• WLED Driver
• Pre-Regulator for Linear Regulators
• Battery Charger

More information

• Datasheet
• IC product information