TPS40132 Series

Two Channel Multiphase Controller with 600mV, .8% Reference

Catalog

Two Channel Multiphase Controller with 600mV, .8% Reference

Part	Function	Clock Sync	Synchronous Rectifier	Control Features	Topology	Frequency - Switching [Max]	Frequency - Switching [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Output Configuration	Number of Outputs	Package / Case	Supplier Device Package	Mounting Type	Output Type	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Output Phases	Duty Cycle (Max) [Max]
Texas Instruments TPS40132RHBT	Step-Down			Current Limit Enable Frequency Control Power Good Soft Start	Buck	1.2 MHz	100 kHz	85 °C	-40 °C	Positive	2	32-VFQFN Exposed Pad	32-VQFN (5x5)	Surface Mount	Transistor Driver	4.5 V	28 V	2	87.5 %

Catalog

Two Channel Multiphase Controller with 600mV, .8% Reference

Key Features

• Supports 5-V OutputTwo-Phase Interleaved OperationOperates With Pre-Biased Outputs1-V to 40-V Power Stage Operation RangeRequires VIN5 @ 50 mA (typ) Depending on External MOSFETs and Switching Frequency10-µA Shutdown CurrentProgrammable Switching Frequency up to 1 MHz/PhaseCurrent Mode Control with Forced Current Sharing0.6V Reference Voltage with 0.8% Accuracy from 0°C to 85°C Temperature RangeResistive Divider Sets Direct Output Overvoltage Threshold.Programmable Input Undervoltage LockoutTrue Remote Sensing Differential AmplifierResistive or Inductor’s DCR Current Sensing32-Pin QFN PackageCan Be Used with TPS40120 to Provide a 6-Bit Digitally Controlled OutputSupports 5-V OutputTwo-Phase Interleaved OperationOperates With Pre-Biased Outputs1-V to 40-V Power Stage Operation RangeRequires VIN5 @ 50 mA (typ) Depending on External MOSFETs and Switching Frequency10-µA Shutdown CurrentProgrammable Switching Frequency up to 1 MHz/PhaseCurrent Mode Control with Forced Current Sharing0.6V Reference Voltage with 0.8% Accuracy from 0°C to 85°C Temperature RangeResistive Divider Sets Direct Output Overvoltage Threshold.Programmable Input Undervoltage LockoutTrue Remote Sensing Differential AmplifierResistive or Inductor’s DCR Current Sensing32-Pin QFN PackageCan Be Used with TPS40120 to Provide a 6-Bit Digitally Controlled Output

Description

The TPS40132 is a two-phase synchronous buck controller that is optimized for low-output voltage, high-output current applications powered from a supply between 1 V and 40 V. A multi-phase converter offers several advantages over a single power stage including lower current ripple on the input and output capacitors, faster transient response to load steps, improved power handling capabilities, and higher system efficiency. Each phase can be operated at a switching frequency up to 1 MHz, resulting in an effective ripple frequency of up to 2 MHz at the input and the output. The two phases operates 180 degrees out-of-phase. The TPS40132 is a two-phase synchronous buck controller that is optimized for low-output voltage, high-output current applications powered from a supply between 1 V and 40 V. A multi-phase converter offers several advantages over a single power stage including lower current ripple on the input and output capacitors, faster transient response to load steps, improved power handling capabilities, and higher system efficiency. Each phase can be operated at a switching frequency up to 1 MHz, resulting in an effective ripple frequency of up to 2 MHz at the input and the output. The two phases operates 180 degrees out-of-phase.