FAN48630UC37AX データシートの表示（PDF） - ON Semiconductor

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FAN48630UC37AX

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

ON Semiconductor 

June 2015

FAN48630 — 2.5 MHz, 1500 mA, Synchronous TinyBoost®

Regulator with Bypass Mode

Features

 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 > VOUT_TARGET

 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

Applications

 Boost for Low-Voltage Li-ion Batteries, Brownout

Prevention, Boosted Audio, USB OTG, and LTE / 3G

RF Power

 Cell Phones, Smart Phones, Portable Instruments

Description

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 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 FAN48630 is available in a 16-bump, 0.4 mm pitch,

Wafer-Level Chip-Scale Package (WLCSP).

+

Battery

0.47H

VIN

CIN

4.7F

SW

VSEL

EN

BYP

FAN48630

VOUT

COUT

20F

PGND

AGND

PG

Figure 1. Typical Application

SYSTEM

LOAD

© 2011 Fairchild Semiconductor Corporation

FAN48630 • Rev. 1.13

www.fairchildsemi.com

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