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