AP5100
AP5100 is 1.2A Step-Down Converter manufactured by Diodes Incorporated.
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1.2A Step-Down Converter with 1.4MHz Switching Frequency
Features
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- - VIN 4.75V to 24V Load current of up to 1.2A Internal Power MOSFET Stable with Low ESR Ceramic Output Capacitors Up to 90% Efficiency 0.1µA Shutdown Mode Fixed 1.4MHz Frequency Thermal Shutdown Cycle-by-Cycle Over Current Protection Resistor divider adjustable Output: 0.81V to 15V SOT26: Available in “Green” Molding pound (no Br, Sb) Lead Free Finish/Ro HS pliant (Note 1)
General Description
The AP5100 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 1.2A over a wide input supply range. The load and line regulation has excellent response time over the operating input voltage and temperature range. The AP5100 is self protected, through a cycle-by-cycle current limiting algorithm and an on chip thermal protection. The AP5100 will provide the voltage conversion with a low count of widely available standard external ponents. The AP5100 is available in SOT26 package.
Applications
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- - Distributed Power Systems Battery Charger Pre-Regulator for Linear Regulators WLED Drivers
Typical Applications
VIN C1
BST 1 C3 . L1 VOUT D1 R1 C6 C2 R2 FB 3
ON OFF 4 EN
Figure 1. Typical Application Circuit
Document number: DS32130 Rev. 1
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1 of 12 .diodes.
MARCH 2010
© Diodes Incorporated
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1.2A Step-Down Converter with 1.4MHz Switching Frequency
Typical Applications
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C1 10µF 25V R3 100kohm
BST...
