Description

The SC905 is a power management integrated circuit (PMIC) designed for the latest CDMA chip sets. The device provides four general purpose low dropout regulators (LDOs), and five low noise LDOs designed for analog circuits. The VMOT LDO can be used as a general purpose regulator or as an adjustable motor drive output that can supply up to 150mA to drive a vibrator motor.

Features

◆ 9 LDO Linear Regulators

◆ CORE: 1.35V - 2.90V @ 300mA

◆ ANA: 2.55V - 2.90V @ 200mA

◆ PAD: 1.35V - 2.90V @ 300mA

◆ RX: 2.55V - 2.90V @ 150mA

◆ TX: 2.55V - 2.90V @ 150mA

◆ TCXO: 2.55V - 2.90V @ 80mA

◆ PLL: 2.55V - 2.90V @ 80mA

◆ Camera: 1.35V - 2.90V @ 100mA

◆ Motor Drive: 1.35V - 2.90V @ 150mA

◆ I2C Interface for Microprocessor Control

◆ Less than 1μA Quiescent Current in Shutdown

◆ 65dB PSRR for Analog LDOs

◆ Over-Temperature Protection

◆ Power-On Control

◆ Optional Interface for Controlling Semtech Battery Chargers

◆ Small 5mm x 5mm 32-Pin QFN Package

Applications

◆ CDMA Cellular Handsets

◆ Palmtop/Laptop Computers

◆ Battery Powered Equipment