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FAN5665 - Adaptive Charge Pump 5V Boost

General Description

The FAN5665 is a 5V switched capacitor step-up DC/DC converter with an input voltage range from 2.9V to 5.5V.

Switch reconfiguration and fractional switching techniques are utilized to achieve high efficiency over the entire input voltage range.

Key Features

  • 5V Fixed Output Voltage 30mA Maximum Output Current Built-in Charge Pump with Three Modes of Operation: 1×, 1.5×, and 2× Minimum External Components Flying Capacitors Only 0.22µF Low-noise, Constant-frequency Operation (1.2MHz) at Heavy Loads High-efficiency, Low-frequency Operation at Light Loads Low Quiescent Current Up to 92% Efficiency 2.9V to 5.5V Input Voltage Range Soft-start for Limiting Inrush Curr.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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FAN5665 — High-Efficiency, Adaptive Charge Pump 5V Boost February 2008 www.datasheet4u.com FAN5665 High-Efficiency, Adaptive Charge Pump 5V Boost Features ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ 5V Fixed Output Voltage 30mA Maximum Output Current Built-in Charge Pump with Three Modes of Operation: 1×, 1.5×, and 2× Minimum External Components Flying Capacitors Only 0.22µF Low-noise, Constant-frequency Operation (1.2MHz) at Heavy Loads High-efficiency, Low-frequency Operation at Light Loads Low Quiescent Current Up to 92% Efficiency 2.9V to 5.5V Input Voltage Range Soft-start for Limiting Inrush Current Input Under-Voltage Lockout Protection (UVLO) Short-Circuit Protection (SCP) Thermal Shutdown Protection (TSD) 8-bump 1.21 x 1.21mm, 0.4mm Pitch WLCSP +5V C OUT 2.2µF C2 0.22µF VOUT C2+ C2C1C1 0.