2.5 MHz, 1500 mA, Synchronous TinyBoost Regulator with Bypass Mode

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Overview

The FAN48630J 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 FAN48630J 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 1500 mA. Quiescent current in Shutdown Mode is less than 3 µA, 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.
The FAN48630J is available in a 16-bump, 0.4 mm pitch, Wafer-Level Chip-Scale Package (WLCSP).

  • Boost for Low-Voltage Li-ion Batteries, Brownout Prevention, Boosted Audio, USB OTG, and LTE / 3G RF Power
  • Cell Phones, Smart Phones, Portable Instruments
  • 3 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 Option: 3.15 V/3.6 V
  • Up to 96%
  • True Bypass Operation when VIN > Target VOUT
  • 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

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FAN48630BUC31JX

Active

Pb

A

H

P

WLCSP-16

1

260

REEL

3000

Y

Step-Down

Voltage Mode

2.3

5.5

3.15V / 3.60V

1.5

96

2500

$1.1063

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