TPS40425 Series
Dual Output, 2-Phase, Stackable PMBUS Synchronous Buck Driverless Controller
Manufacturer: Texas Instruments
Catalog(2 parts)
| Part | Frequency - Switching▲▼ | Frequency - Switching▲▼ | Mounting Type | Function | Synchronous Rectifier▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Clock Sync▲▼ | Serial Interfaces | Voltage - Supply (Vcc/Vdd)▲▼ | Voltage - Supply (Vcc/Vdd)▲▼ | Package / Case | Output Type | Number of Outputs▲▼ | Supplier Device Package | Topology | Output Configuration | Supplied Contents | Frequency - Switching▲▼ | Voltage - Output▲▼ | Utilized IC / Part | Voltage - Input▲▼ | Voltage - Input▲▼ | Board Type | Current - Output▲▼ | Main Purpose | Outputs and Type▲▼ | Outputs and Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS40425RHARBuck Regulator Positive Output Step-Down PMBus DC-DC Controller IC 40-VQFN (6x6) | 200000 Hz | 1500000 Hz | Surface Mount | Step-Down | 125 °C | -40 °C | PMBus | 4.5 V | 20 V | 40-VFQFN Exposed Pad | Transistor Driver | 2 ul | 40-VQFN (6x6) | Buck | Positive | |||||||||||||
Texas Instruments TPS40425EVM-594TPS40425 - DC/DC, Step Down 2, Non-Isolated Outputs Evaluation Board | Board(s) | 500000 Hz | 1.2000000476837158 V, 1.7999999523162842 V | TPS40425 | 14 V | 7 V | Fully Populated | 20 A | DC/DC, Step Down | 2 ul | Non-Isolated |
Key Features
• Non-Smart Power Mode in Factory DefaultPin-for-Pin Equivalent to TPS40428 – Smart Power Mode in Factory DefaultSingle Supply Operation: 4.5 V to 20 VVOUTfrom 0.6 VDual or Multi-Phase Synchronous Buck ControllerIndividual High-Speed AVS Interface(0.5-V to 1.5-V Range)Fast Transient ResponseStackable up to Four Phases2-, 3-, or 4-Phase Interleaved Phase ShiftsAccurate Current SharingPMBus™ Interface CapabilityMargining Up or Down with 2-mV StepProgrammable Fault Limit and Response±0.8% VOUTAccuracy Current Monitoring±4.5°C External Temperature Monitoring with x3904Programmable UVLO ON/OFF ThresholdsProgrammable Soft-Start Time, Turn-On Delay, and Turn-Off DelayOn-Chip Non-Volatile Memory (NVM) to Store Custom Configurations0.6-V Reference Voltage with 0.5% Accuracy from –40°C to 125°CInductor DCR Current SensingProgrammable ƒSWfrom 200 kHz to 1.5 MHzSupports Pre-biased OutputDifferential Remote SensingSynchronization to an Extermal ClockOC/OV/UV/OT Fault Protection40-Pin, 6 mm × 6 mm, QFN PackageSupport for TI Power StageNon-Smart Power Mode in Factory DefaultPin-for-Pin Equivalent to TPS40428 – Smart Power Mode in Factory DefaultSingle Supply Operation: 4.5 V to 20 VVOUTfrom 0.6 VDual or Multi-Phase Synchronous Buck ControllerIndividual High-Speed AVS Interface(0.5-V to 1.5-V Range)Fast Transient ResponseStackable up to Four Phases2-, 3-, or 4-Phase Interleaved Phase ShiftsAccurate Current SharingPMBus™ Interface CapabilityMargining Up or Down with 2-mV StepProgrammable Fault Limit and Response±0.8% VOUTAccuracy Current Monitoring±4.5°C External Temperature Monitoring with x3904Programmable UVLO ON/OFF ThresholdsProgrammable Soft-Start Time, Turn-On Delay, and Turn-Off DelayOn-Chip Non-Volatile Memory (NVM) to Store Custom Configurations0.6-V Reference Voltage with 0.5% Accuracy from –40°C to 125°CInductor DCR Current SensingProgrammable ƒSWfrom 200 kHz to 1.5 MHzSupports Pre-biased OutputDifferential Remote SensingSynchronization to an Extermal ClockOC/OV/UV/OT Fault Protection40-Pin, 6 mm × 6 mm, QFN PackageSupport for TI Power Stage
Description
AI
The TPS40425 is a PMBus, synchronous buck, driverless controller. It operates in non-smart power mode in factory default setting, and it can operate in smart power mode after PMBus programming and power reboot. It can be configured as dual-output or 2-phase. It is also stackable up to 4 phases to support load current as high as 120 A. Interleaved phase shift for 2-, 3-, or 4-phases reduce the input and output ripples therefore reducing input and output capacitance.
The wide input voltage range can support 5-V and 12-V intermediate supply buses. The 0.5% reference voltage satisfies the need of precision voltage to the modern ASICs.
Using the PMBus standard, the TPS40425 device can program reference voltage, fault limit, UVLO threshold, soft-start time and turn-on and turn-off delay.
In addition, the device implements an accurate measurement system to monitor the output voltages, currents and temperatures for individual channels.
The TPS40425 is a PMBus, synchronous buck, driverless controller. It operates in non-smart power mode in factory default setting, and it can operate in smart power mode after PMBus programming and power reboot. It can be configured as dual-output or 2-phase. It is also stackable up to 4 phases to support load current as high as 120 A. Interleaved phase shift for 2-, 3-, or 4-phases reduce the input and output ripples therefore reducing input and output capacitance.
The wide input voltage range can support 5-V and 12-V intermediate supply buses. The 0.5% reference voltage satisfies the need of precision voltage to the modern ASICs.
Using the PMBus standard, the TPS40425 device can program reference voltage, fault limit, UVLO threshold, soft-start time and turn-on and turn-off delay.
In addition, the device implements an accurate measurement system to monitor the output voltages, currents and temperatures for individual channels.