TPS40425RHAR
ActiveDUAL OUTPUT, 2-PHASE, STACKABLE PMBUS SYNCHRONOUS BUCK DRIVERLESS CONTROLLER
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TPS40425RHAR
ActiveDUAL OUTPUT, 2-PHASE, STACKABLE PMBUS SYNCHRONOUS BUCK DRIVERLESS CONTROLLER
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS40425RHAR |
|---|---|
| Clock Sync | True |
| Frequency - Switching [Max] | 1.5 MHz |
| Frequency - Switching [Min] | 200 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 C |
| Output Configuration | Positive |
| Output Phases | 2 |
| Output Type | Transistor Driver |
| Package / Case | 40-VFQFN Exposed Pad |
| Serial Interfaces | PMBus |
| Supplier Device Package | 40-VQFN (6x6) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 20 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 0 | $ 4.85 | |
| Tape & Reel (TR) | 2500 | $ 4.13 | ||
| Texas Instruments | LARGE T&R | 1 | $ 5.79 | |
| 100 | $ 4.72 | |||
| 250 | $ 3.71 | |||
| 1000 | $ 3.15 | |||
Description
General part information
TPS40425 Series
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.
Documents
Technical documentation and resources
