FP7201

Constant Current Switching Regulator for White LED

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Rev. 0.70

General Description

The FP7201 is a Boost DC-DC converter specifically designed to drive white LEDs with constant

current. The device can support 2 to 7 white LEDs for backlighting and camera flashing. This high

efficient regulator and internal compensation network minimizes as 5 external component counts.

Optimized operation frequency can meet the requirement of small LC filters value and low operation

current with high efficiency. The non-inverting input of error amplifier connects to a 0.25V precision

reference voltage and internal soft-start function can reduce the inrush current.

The FP7201 is available in the TSOT23-6L package and provides space-saving PCB for diverse

application fields.

Features

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Precision Feedback Reference Voltage: 0.25V (4%)

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Under Voltage Lockout Protection

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Over Voltage Protection

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Over Temperature Protection

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Wide Frequency Range and Dimming with Zero-Inrush Current

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Internal Soft-Start

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Zero Shutdown Current

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Adjustable Output up to 26V

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Package: TSOT23-6L

Applications

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Smart Phone LED Backlights

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Digital Cameras

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Camcorders

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PDA LED Backlights

Typical Application Circuit