TPS40422 Series
Dual Output or Multiphase Synchronous Buck Controller with PMBus
Manufacturer: Texas Instruments
Catalog
Dual Output or Multiphase Synchronous Buck Controller with PMBus
Key Features
• Single Supply Operation: 4.5 V to 20 VOutput Voltage from 0.6 V to 5.6 VDual-output or Two-Phase Synchronous Buck ControllerPMBus™ Interface CapabilityMargining Up or Down with 2-mV StepProgrammable Fault Limit and ResponseOutput Voltage, Output Current MonitoringExternal Temperature Monitoring with 2N3904 TransistorProgrammable UVLO ON and OFF ThresholdsProgrammable Soft-start Time and Turn-On and Turn-Off DelayOn-Chip Non-volatile Memory (NVM) to Store Custom Configurations180° Out-of-Phase to Reduce Input Ripple600-mV Reference Voltage with ±0 .5% Accuracy from 0°C to 85°CInductor DCR Current SensingProgrammable Switching Frequency: 200 kHz to 1 MHzVoltage Mode Control with Input Feed ForwardCurrent Sharing for Multiphase OperationSupports Pre-biased OutputDifferential Remote SensingExternal SYNCBPEXT Pin Boosts Efficiency by Supporting External Bias Power Switch OverOC, OV, UV, and OT Fault Protection40-Pin, 6 mm × 6 mm VQFN Package with 0.5-mm Pitch40-Pin, 5 mm × 5 mm WQFN Package with 0.4-mm PitchCreate a Custom Design using the TPS40422 device with theWEBENCH® Power DesignerSingle Supply Operation: 4.5 V to 20 VOutput Voltage from 0.6 V to 5.6 VDual-output or Two-Phase Synchronous Buck ControllerPMBus™ Interface CapabilityMargining Up or Down with 2-mV StepProgrammable Fault Limit and ResponseOutput Voltage, Output Current MonitoringExternal Temperature Monitoring with 2N3904 TransistorProgrammable UVLO ON and OFF ThresholdsProgrammable Soft-start Time and Turn-On and Turn-Off DelayOn-Chip Non-volatile Memory (NVM) to Store Custom Configurations180° Out-of-Phase to Reduce Input Ripple600-mV Reference Voltage with ±0 .5% Accuracy from 0°C to 85°CInductor DCR Current SensingProgrammable Switching Frequency: 200 kHz to 1 MHzVoltage Mode Control with Input Feed ForwardCurrent Sharing for Multiphase OperationSupports Pre-biased OutputDifferential Remote SensingExternal SYNCBPEXT Pin Boosts Efficiency by Supporting External Bias Power Switch OverOC, OV, UV, and OT Fault Protection40-Pin, 6 mm × 6 mm VQFN Package with 0.5-mm Pitch40-Pin, 5 mm × 5 mm WQFN Package with 0.4-mm PitchCreate a Custom Design using the TPS40422 device with theWEBENCH® Power Designer
Description
AI
The TPS40422 is a dual-output PMBus protocol, synchronous buck controller. It can be configured also for a single, two-phase output.
The wide input range supports 5-V and 12-V intermediate buses. The accurate reference voltage satisfies the need of precision voltage to the modern ASICs and potentially reduces the output capacitance. Voltage mode control reduces noise sensitivity and also ensures low duty ratio conversion.
The TPS40422 is a dual-output PMBus protocol, synchronous buck controller. It can be configured also for a single, two-phase output.
The wide input range supports 5-V and 12-V intermediate buses. The accurate reference voltage satisfies the need of precision voltage to the modern ASICs and potentially reduces the output capacitance. Voltage mode control reduces noise sensitivity and also ensures low duty ratio conversion.
