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FAN48630

 2014-09-03

【产品特性】

• Internal Synchronous Rectifier
• Soft-Start with True Load Disconnect
• Forced Bypass Mode
• VSEL Control to Optimize Target VOUT
• Short-Circuit Protection
• Low Operating Quiescent Current
• 16-Bump, 0.4 mm Pitch WLCSP

• Few External Components: 0.47 µH Inductor and 0603 Case Size Input and Output Capacitors
• Input Voltage Range: 2.35 V to 5.5 V
• Fixed Output Voltage Options: 3.0 V to 5.0 V
• Maximum Continuous Load Current: 1500 mA at VIN of 2.6 V Boosting VOUT to 3.5 V
• Up to 96% Efficient
• True Bypass Operation when VIN Target VOUT

【产品应用】

• Boost for low-voltage Li-ion batteries
• Brownout prevention
• Boosted Audio
• USB OTG
• LTE/ 3G RF power

【文字介绍】

The FAN48630 allows systems to take advantage of new battery chemistries that can supply significant energy when the battery voltage is lower than the required voltage for system power ICs. By combining built-in power transistors, synchronous rectification, and low supply current; this IC provides a compact solution for systems using advanced Li-Ion battery chemistries.

The FAN48630 is a boost regulator designed to provide a minimum output voltage (VOUT(MIN)) from a single-cell Li-Ion battery, even when the battery voltage is below system minimum. Output voltage regulation is guaranteed to a maximum load current of 1500mA. Quiescent current in Shutdown Mode is less than 3µA, which maximizes battery life. The regulator transitions smoothly between Bypass and normal Boost Mode. The device can be forced into Bypass Mode to reduce quiescent current.