TPS40422RSBT Part Information

Details for TPS40422RSBT by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

Buy TPS40422RSBT Directly from Texas Instruments (6730 in stock) at $2.1760

Part Description

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.

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Part Features

  • 180u00b0 Out-of-Phase to Reduce Input Ripple
  • 40-Pin, 5 mm u00d7 5 mm WQFN Package with 0.4-
  • 40-Pin, 6 mm u00d7 6 mm VQFN Package with 0.5- mm Pitch
  • 600-mV Reference Voltage with u00b10.5% Accuracy from 0u00b0C to 85u00b0C
  • BPEXT Pin Boosts Efficiency by Supporting External Bias Power Switch Over
  • Current Sharing for Multiphase Operation
  • Differential Remote Sensing
  • Dual-output or Two-Phase Synchronous Buck Controller
  • External SYNC
  • Inductor DCR Current Sensing
  • OC, OV, UV, and OT Fault Protection
  • On-Chip Non-volatile Memory (NVM) to Store Custom Configurations
  • Output Voltage from 0.6 V to 5.6 V
  • PMBusu2122 Interface Capability u2013 Margining Up or Down with 2-mV Step u2013 Programmable Fault Limit and Response u2013 Output Voltage, Output Current Monitoring u2013 External Temperature Monitoring with 2N3904 Transistor u2013 Programmable UVLO ON and OFF Thresholds u2013 Programmable Soft-start Time and Turn-On and Turn-Off Delay
  • Programmable Switching Frequency: 200 kHz to 1 MHz
  • Single Supply Operation: 4.5 V to 20 V
  • Supports Pre-biased Output
  • Voltage Mode Control with Input Feed Forward

Part Specifications

Supply Voltage Min 4.5V
Supply Voltage Max 20V
No. of Outputs 2 Output
Duty Cycle (%) 90%
Controller IC Case Style WQFN
No. of Pins 40Pins
Switching Frequency 1MHz
Topology Synchronous Buck (Step Down)
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 2 - 1 year
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • Dual Output or Multiphase Synchronous Buck Controller with PMBus | Texas Instruments

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