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The RT5142 offers highly-integrated multi-channel system power management solutions to meet the performance, efficiency, and feature requirements. <br /><br />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.<br /><br />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 I<sup>2</sup>C interface configuration when the RT5142 works in the normal mode.
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productFeature
  • 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
    ► POR_RST_N for ASIC to RESET PMIC
    ► IRQ_N Interrupt Flag
    ► PWRDIS, SLEEP, Deep SLEEP
    ► 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
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