TPS65279RHHT
Active4.5-V TO 18-V INPUT, DUAL 5-A SYNCHRONOUS STEP-DOWN CONVERTER
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TPS65279RHHT
Active4.5-V TO 18-V INPUT, DUAL 5-A SYNCHRONOUS STEP-DOWN CONVERTER
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS65279RHHT |
|---|---|
| Current - Output | 5 A |
| Frequency - Switching [Max] | 1.6 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 Type | Adjustable |
| Package / Case | 36-VFQFN Exposed Pad |
| Supplier Device Package | 36-VQFN (6x6) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 18 V |
| Voltage - Input (Min) [Min] | 4.5 V |
| Voltage - Output (Min/Fixed) | 0.6 V |
TPS65279V Series
4.5-V to 18-V Input, Dual 5-A Synchronous Step-Down Converter with I2C interface
| Part | Mounting Type | Voltage - Input (Max) [Max] | Voltage - Input (Min) [Min] | Package / Case | Package / Case [x] | Package / Case [y] | Operating Temperature [Max] | Operating Temperature [Min] | Voltage - Output (Min/Fixed) | Synchronous Rectifier | Topology | Output Configuration | Number of Outputs | Voltage - Output (Max) [Max] | Frequency - Switching [Min] | Frequency - Switching [Max] | Current - Output | Function | Output Type | Supplier Device Package | Outputs and Type | Voltage - Output | Outputs and Type | Supplied Contents | Regulator Topology | Board Type | Main Purpose | Frequency - Switching | Utilized IC / Part | Voltage - Input [Max] | Voltage - Input [Min] | Contents |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Texas Instruments | Surface Mount | 18 V | 4.5 V | 32-PowerTSSOP | 0.24 in | 6.1 mm | 85 °C | -40 °C | 0.68 V | Buck | Positive | 2 | 1.95 V | 200 kHz | 1.6 MHz | 5 A | Step-Down | Adjustable (Programmable) | 32-HTSSOP | |||||||||||||
 Texas Instruments | 5 A | 2 Non-Isolated Outputs Non-Isolated | 1.2 V 1.8 V | 2 | Board(s) | Buck | Fully Populated | DC/DC Step Down | 500 kHz | TPS65279 | 18 V | 4.5 V | Board(s) | |||||||||||||||||||
 Texas Instruments | Surface Mount | 18 V | 4.5 V | 36-VFQFN Exposed Pad | 125 ¯C | -40 °C | 0.6 V | Buck | Positive | 2 | 200 kHz | 1.6 MHz | 5 A | Step-Down | Adjustable | 36-VQFN (6x6) | ||||||||||||||||
Texas Instruments | Surface Mount | 18 V | 4.5 V | 36-VFQFN Exposed Pad | 85 °C | -40 °C | 0.68 V | Buck | Positive | 2 | 1.95 V | 200 kHz | 1.6 MHz | 5 A | Step-Down | Adjustable (Programmable) | 36-VQFN (6x6) | |||||||||||||||
Texas Instruments | Surface Mount | 18 V | 4.5 V | 36-VFQFN Exposed Pad | 125 ¯C | -40 °C | 0.6 V | Buck | Positive | 2 | 200 kHz | 1.6 MHz | 5 A | Step-Down | Adjustable | 36-VQFN (6x6) | ||||||||||||||||
Texas Instruments | Surface Mount | 18 V | 4.5 V | 32-PowerTSSOP | 0.24 in | 6.1 mm | 125 ¯C | -40 °C | 0.6 V | Buck | Positive | 2 | 200 kHz | 1.6 MHz | 5 A | Step-Down | Adjustable | 32-HTSSOP |
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 | $ 5.91 | |
| 10 | $ 5.30 | |||
| 25 | $ 5.02 | |||
| 100 | $ 4.35 | |||
| Digi-Reel® | 1 | $ 5.91 | ||
| 10 | $ 5.30 | |||
| 25 | $ 5.02 | |||
| 100 | $ 4.35 | |||
| Tape & Reel (TR) | 250 | $ 4.12 | ||
| 500 | $ 3.70 | |||
| 1250 | $ 3.12 | |||
| 2500 | $ 2.96 | |||
| Texas Instruments | SMALL T&R | 1 | $ 4.46 | |
| 100 | $ 3.91 | |||
| 250 | $ 2.74 | |||
| 1000 | $ 2.21 | |||
Description
General part information
TPS65279V Series
The TPS65279V is a monolithic dual synchronous buck regulator with wide 4.5-V to 18-V operating input voltage that can operate in 5-, 9-, 12- or 15-V bus voltages and battery chemistries. The converters are designed to simplify its application while giving the designer the option to optimize their usage according to the target application.
Each buck converter in TPS65279V has external feedback resistors that can be used for setting the initial start up voltage. The feedback voltage reference for this start-up option is 0.6 V. Once the VID DAC is updated via the I2C, the buck converter switches feedback resistors from external to internal. The output voltage in each buck can be programmable from 0.68 V to 1.95 V in 10-mV steps with I2C Controlled 7-Bits VID.
Each buck converter in TPS65279V can also be I2C controlled for enabling/disabling output voltage, setting the pulse skipping mode and reading the power good status and die temperature warning.
Documents
Technical documentation and resources