TPS40428RHAT
ActiveDUAL OUTPUT, 2-PHASE, STACKABLE PMBUS SYNCHRONOUS BUCK DRIVERLESS CONTROLLER
Deep-Dive with AI
Search across all available documentation for this part.
TPS40428RHAT
ActiveDUAL OUTPUT, 2-PHASE, STACKABLE PMBUS SYNCHRONOUS BUCK DRIVERLESS CONTROLLER
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS40428RHAT |
|---|---|
| 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 | PWM Signal |
| Package / Case | 40-VFQFN Exposed Pad |
| Serial Interfaces | PMBus |
| Supplier Device Package | 40-VQFN (6x6) |
| Synchronous Rectifier | False |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 20 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 4.5 V |
TPS40428 Series
Dual Output, 2-Phase, Stackable PMBus Synchronous Buck Driverless Controller
| Part | Topology | Package / Case | Voltage - Supply (Vcc/Vdd) [Max] | Voltage - Supply (Vcc/Vdd) [Min] | Supplier Device Package | Output Phases | Number of Outputs | Mounting Type | Synchronous Rectifier | Operating Temperature [Min] | Operating Temperature [Max] | Frequency - Switching [Max] | Frequency - Switching [Min] | Output Configuration | Clock Sync | Function | Serial Interfaces | Output Type | Voltage - Input [Max] | Voltage - Input [Min] | Current - Output | Outputs and Type | Outputs and Type | Board Type | Frequency - Switching | Utilized IC / Part | Supplied Contents | Voltage - Output | Main Purpose | Regulator Topology |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments | Buck | 40-VFQFN Exposed Pad | 20 V | 4.5 V | 40-VQFN (6x6) | 2 | 2 | Surface Mount | -40 °C | 125 ¯C | 1.5 MHz | 200 kHz | Positive | Step-Down | PMBus | PWM Signal | ||||||||||||||
 Texas Instruments | 14 V | 7 V | 20 A | 2 | Non-Isolated | Fully Populated | 500 kHz | TPS40428 | Board(s) | 1.2 V 1.8 V | DC/DC Step Down | Buck |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 9.77 | |
| 10 | $ 8.83 | |||
| 25 | $ 8.42 | |||
| 100 | $ 7.31 | |||
| Digi-Reel® | 1 | $ 9.77 | ||
| 10 | $ 8.83 | |||
| 25 | $ 8.42 | |||
| 100 | $ 7.31 | |||
| Tape & Reel (TR) | 250 | $ 5.08 | ||
| Texas Instruments | SMALL T&R | 1 | $ 7.48 | |
| 100 | $ 6.10 | |||
| 250 | $ 4.79 | |||
| 1000 | $ 4.07 | |||
Description
General part information
TPS40428 Series
The TPS40428 device is a PMBus, synchronous buck, driverless controller. It operates in smart power mode with factory default settings, and it can operate in non-smart power mode after PMBus programing and power reboot. It can be configured for dual-output or 2-phase operation. 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 TPS40428 device can program reference voltage, fault limit, UVLO threshold, soft-start time and turn-on and turn-off delay.
Documents
Technical documentation and resources