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FAN2103 — TinyBuck™ 3 A, 24 V Input, Integrated Synchronous Buck Regulator
August 2014
FAN2103 — TinyBuck™
3 A, 24 V Input, Integrated Synchronous Buck
Regulator
Features
3 A Output Current
Over 95% Efficiency
Fully Synchronous Operation with Integrated
Schottky Diode on Low-side MOSFET Boosts
Efficiency
Programmable Frequency Operation (200 KHz to
600 KHz)
Power-good Signal
Accepts Ceramic Capacitors on Output
External Compensation for Flexible Design
Wide Input Range: 3 V to 24 V
Output Voltage Range: 0.8 V to 90%V
IN
Input Under-Voltage Lockout
Programmable Over-Current Limit
Under-Voltage, Over-Voltage, and
Thermal Protections
5x6 mm, 25-pin, 3-Pad MLP
Description
The FAN2103 TinyBuck™ is an easy-to-use, cost- and
space-efficient, 3 A synchronous buck solution. It
enables designers to solve high current requirements in
a small area with minimal external components.
External compensation, programmable switching
frequency, and current limit features allow for design
optimization and flexibility.
The summing current mode modulator uses lossless
current sensing for current feedback and over-current,
and includes voltage feedforward.
Fairchild’s advanced BiCMOS power process, combined
with low R
DS(ON)
internal MOSFETs and a thermally
efficient MLP package provide the ability to dissipate
high power in a small package.
Output over-voltage, under-voltage, and thermal
shutdown protections plus power-good, help protect the
嵌入式系统
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