The RT5142 offers highly-integrated multi-channel system power management solutions to meet the performance, efficiency, and feature requirements.

The RT5142 incorporates four buck regulators and two LDOs that deliver several output voltages. This provides flexibility to support applications of different VIDs with a configurable power-on sequence.

The RT5142 supplies 8 configurable GPIOs for system hardware control requirements. These GPIOs can be configured for multiple purposes, such as, PWRDIS/ Sleep/ Deep Sleep settings for PMIC state machine control, Buck1/2 Enable/Disable setting, Buck3/4 VID control setting, POR_RST_N pin for monitoring PMIC power good and can also be configured as two sets External_EN and External_PG signals. In addition, the GPIOs also support three-state through I2C interface configuration when the RT5142 works in the normal mode.


  • SSD
Status Active
Vin (min) (V) 2.7
Vin (max) (V) 3.7
Number of Channels 6
Number of Buck Converters 4
Number of Boost Converters 0
Number of Negative Outputs 0
Number of LED Drivers 0
Number of LDO Regulators 2
Application SSD
Features ACOT Control;Adjustable Current Limit;Adjustable Soft-Start;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Enable Input;I2C;OCP;OVP;Power Good;Stable with Ceramic Capacitor;UVP
Package Type WL-CSP2.66x2.70-36(BSC)
  • Input Supply Voltage Range: 2.7V to 3.7V.
  • Highly Efficient Programmable Regulators
    ► BUCK 1: 1.7V to 2.9V, 20mV per step; 4A
    ► BUCK 2: 0.9V to 2.0V, 10mV per step; 2A
    ► BUCK 3: 0.5V to 1.3V, 10mV per step; 4A
    ► BUCK 4: 0.9V to 2.0V, 10mV per step; 2A
    ► LDO 1: 1.0V to 2.7V, 50mV per step; 400mA
    ► LDO 2: 1.0V to 2.7V, 50mV per step; 400mA
  • Configurable Outputs
    ► ±1.5% Feedback Voltage Accuracy for Full Temperature Range (-40°C to 125°C)
    ► DVID Change for all Bucks Via I2C Interface
    ► Enable Time for All VRs
    ► Soft-start Time for All VRs
    ► Selectable Switching Frequency for Every Buck Rail
  • Input OV/UV Warning Indication and Fault Protection
  • Outputs OV/UV/OC Fault Protection
  • Thermal Shutdown Protection
  • Diode Emulation Mode for Light-Load, High Efficiency Operation
  • Non-Volatile Register Configurability
  • I2C Interface 400kHz/1MHz/3.4MHz
  • 8 GPIOs Multi-functions for Control and Command unit
    ► IRQ_N Interrupt Flag
    ► Buck1/2 Enable/Disable
    ► 2 Sets EXT_EN_I and EXT_EN_O
    ► Buck1/2/3/4 and LDO1/2 Selection by GPIOx
  • Ambient Temperature Range: -40°C to 85°C
  • Junction Temperature Range: -40°C to 125°C
TitleLast UpdateDownload
Power Management Unit Total Power Solution for SSD2023/03/28