TPS65279VRHHT
Active4.5-V TO 18-V INPUT, DUAL 5-A SYNCHRONOUS STEP-DOWN CONVERTER WITH I2C INTERFACE
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TPS65279VRHHT
Active4.5-V TO 18-V INPUT, DUAL 5-A SYNCHRONOUS STEP-DOWN CONVERTER WITH I2C INTERFACE
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS65279VRHHT |
|---|---|
| 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] | 85 C |
| Operating Temperature [Min] | -40 ¯C |
| Output Configuration | Positive |
| Output Type | Adjustable (Programmable) |
| 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 (Max) [Max] | 1.95 V |
| Voltage - Output (Min/Fixed) | 0.68 V |
TPS65279 Series
4.5-V to 18-V Input, Dual 5-A Synchronous Step-Down Converter
| Part | Number of Outputs | Supplier Device Package | Package / Case | Package / Case [x] | Package / Case [y] | Output Configuration | Topology | Function | Synchronous Rectifier | Operating Temperature [Max] | Operating Temperature [Min] | Voltage - Output (Max) [Max] | Voltage - Input (Max) [Max] | Voltage - Output (Min/Fixed) | Current - Output | Frequency - Switching [Min] | Frequency - Switching [Max] | Output Type | Mounting Type | Voltage - Input (Min) [Min] | Board Type | Outputs and Type | Outputs and Type | Supplied Contents | Regulator Topology | Voltage - Output | Current - Output [custom] | Current - Output [custom] | Utilized IC / Part | Voltage - Input [Max] | Voltage - Input [Min] | Contents | Main Purpose | Frequency - Switching |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Texas Instruments | 2 | 32-HTSSOP | 32-PowerTSSOP | 0.24 in | 6.1 mm | Positive | Buck | Step-Down | 85 C | -40 ¯C | 1.95 V | 18 V | 0.68 V | 5 A | 200 kHz | 1.6 MHz | Adjustable (Programmable) | Surface Mount | 4.5 V | |||||||||||||||
 Texas Instruments | Fully Populated | 2 | 2 Non-Isolated Outputs Non-Isolated | Board(s) | Buck | 1.2 V 1.8 V | 5 A | 5 A | TPS65279 | 18 V | 4.5 V | Board(s) | DC/DC Step Down | 500 kHz | ||||||||||||||||||||
Texas Instruments | 2 | 32-HTSSOP | 32-PowerTSSOP | 0.24 in | 6.1 mm | Positive | Buck | Step-Down | 125 °C | -40 C | 15 V | 18 V | 0.6 V | 5 A | 200 kHz | 1.6 MHz | Adjustable | Surface Mount | 4.5 V | |||||||||||||||
 Texas Instruments | 2 | 36-VQFN (6x6) | 36-VFQFN Exposed Pad | Positive | Buck | Step-Down | 125 °C | -40 C | 15 V | 18 V | 0.6 V | 5 A | 200 kHz | 1.6 MHz | Adjustable | Surface Mount | 4.5 V | |||||||||||||||||
Texas Instruments | 2 | 36-VQFN (6x6) | 36-VFQFN Exposed Pad | Positive | Buck | Step-Down | 85 C | -40 ¯C | 1.95 V | 18 V | 0.68 V | 5 A | 200 kHz | 1.6 MHz | Adjustable (Programmable) | Surface Mount | 4.5 V | |||||||||||||||||
Texas Instruments | 2 | 36-VQFN (6x6) | 36-VFQFN Exposed Pad | Positive | Buck | Step-Down | 85 C | -40 ¯C | 1.95 V | 18 V | 0.68 V | 5 A | 200 kHz | 1.6 MHz | Adjustable (Programmable) | Surface Mount | 4.5 V | |||||||||||||||||
Texas Instruments | 2 | 36-VQFN (6x6) | 36-VFQFN Exposed Pad | Positive | Buck | Step-Down | 125 °C | -40 C | 15 V | 18 V | 0.6 V | 5 A | 200 kHz | 1.6 MHz | Adjustable | Surface Mount | 4.5 V | |||||||||||||||||
 Texas Instruments | 2 | 32-HTSSOP | 32-PowerTSSOP | 0.24 in | 6.1 mm | Positive | Buck | Step-Down | 125 °C | -40 C | 15 V | 18 V | 0.6 V | 5 A | 200 kHz | 1.6 MHz | Adjustable | Surface Mount | 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 | Cut Tape (CT) | 1 | $ 4.30 | |
| 10 | $ 3.86 | |||
| 25 | $ 3.65 | |||
| 100 | $ 3.16 | |||
| Digi-Reel® | 1 | $ 4.30 | ||
| 10 | $ 3.86 | |||
| 25 | $ 3.65 | |||
| 100 | $ 3.16 | |||
| N/A | 0 | $ 4.56 | ||
| Tape & Reel (TR) | 250 | $ 3.00 | ||
| 500 | $ 2.69 | |||
| 1250 | $ 2.27 | |||
| 2500 | $ 2.16 | |||
| Texas Instruments | SMALL T&R | 1 | $ 3.24 | |
| 100 | $ 2.84 | |||
| 250 | $ 1.99 | |||
| 1000 | $ 1.60 | |||
Description
General part information
TPS65279 Series
TPS65279 is a monolithic dual synchronous buck converter with wide 4.5-V to 18-V operating input voltage range that encompassed most intermediate bus voltage operating off 5-, 9-, 12- or 15-V power bus or battery. The converter with constant frequency peak current mode control is designed to simplify its application while giving the designers options to optimize their usage according to the target applications.
Two bucks in TPS65279 can be paralleled to delivery up to 10-A load current by using current sharing mode, connect ISHARE pin high. Two phase operation in current sharing reduces system filtering capacitance and inductance, alleviates EMI and improves output voltage ripple and noise.
TPS65279 features a dedicated enable pin. An independent soft-start pin provides flexibility in power up programmability. Constant frequency peak current mode control simplifies the compensation and provides fast transient response. Cycle-by-cycle overcurrent protection and hiccup mode operation limit MOSFET power dissipation in short circuit or over loading fault conditions.
Documents
Technical documentation and resources