General Description

The RT5133A is a highly-integrated power

management IC, which includes 8 LDOs for camera

sensor applications, including 2-Ch DVDD, 4-Ch AVDD,

1-Ch VIO, 1-Ch VAF and 3 GPOs for portable devices.

The output voltages, soft-start time and protections of

regulators can be controlled by writing the registers

through I2C.

The LDO1 can be used to supply power to IO (VIO). The

LDO2 can be used to supply power to auto focus unit

(VAF). The LDO3 to LDO6 can be used to supply power

to AVDD. The LDO7 and LDO8 can be used to supply

power to DVDD.

3 GPO output pins can control external device or be

reused for another purpose.

The RT5133A is available in a WL-CSP-25B 1.84x1.84

(BSC) package.

Applications

Cellular Telephones

Personal Information Appliances

Tablet PCs

Portable Instruments

Features

 Top

 Hardware Enable Pin

 I2C Controlled Interface

 Programmable Channel Power On/Off

 IRQB Output for Indication

 Input Under-Voltage Protection

 Over-Temperature Protection

 LDO

 LDO1/2

 2 Low Dropout Regulators for VIO18 and

auto Focus Application

 Wide 2.8V to 5V Operating Input Range

 Programmable Output Voltage by I2C

 High PSRR : 70dB @ 1KHz

 300mA Low Dropout Voltage Regulators

 LDO3/4/5/6

 4 Low Dropout Regulators for AVDD

application

 Wide 2.8V to 5V Operating Input Range

 Programmable Output Voltage by I2C

 High PSRR : 85dB @ 1KHz

 300mA Low Dropout Voltage Regulators

 LDO7/8

 2 Low Dropout Regulators for DVDD

application

 Wide 1.1V to 5V Operating Input Range

 Programmable Output Voltage by I2C

 High PSRR : 75dB @ 1KHz

 600mA/1000mA Low Dropout Voltage

Regulators

 GPO

 3 GPO Pins to Control a Single Regulator