TPS51117RGYT
Active1.8-V TO 28-V, SYNCHRONOUS D-CAP BUCK CONTOLLER WITH LIGHT LOAD EFFICIENCY
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TPS51117RGYT
Active1.8-V TO 28-V, SYNCHRONOUS D-CAP BUCK CONTOLLER WITH LIGHT LOAD EFFICIENCY
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Technical Specifications
Parameters and characteristics for this part
| Specification | TPS51117RGYT |
|---|---|
| Clock Sync | False |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 14-VFQFN Exposed Pad |
| Supplier Device Package | 14-VQFN (3.5x3.5) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 5.5 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 | Cut Tape (CT) | 1 | $ 2.20 | |
| 10 | $ 1.98 | |||
| 25 | $ 1.87 | |||
| 100 | $ 1.59 | |||
| Digi-Reel® | 1 | $ 2.20 | ||
| 10 | $ 1.98 | |||
| 25 | $ 1.87 | |||
| 100 | $ 1.59 | |||
| Tape & Reel (TR) | 250 | $ 1.05 | ||
| 500 | $ 0.93 | |||
| Texas Instruments | SMALL T&R | 1 | $ 1.85 | |
| 100 | $ 1.53 | |||
| 250 | $ 1.10 | |||
| 1000 | $ 0.83 | |||
Description
General part information
TPS51117 Series
The TPS51117 device is a cost-effective, synchronous buck controller for POL voltage regulation in notebook PC applications. The controller is dedicated for the operation of the Adaptive On-Time D-CAP mode. This mode provides ease-of-use, low external component count, and fast transient response. Auto-skip mode for high efficiency down to the milliampere load range, or PWM-only mode for low-noise operation is selectable.
The current-sensing scheme for positive overcurrent and negative overcurrent protection is loss-less low-side RDS(on)sensing plus temperature compensation. The device receives a 5-V (4.5 V to 5.5 V) supply from another regulator such as the TPS51120 or TPS51020. The conversion input can be either VBAT or a 5-V rail, ranging from 1.8 V to 28 V, and the output voltage range is from 0.75 V to 5.5 V.
The TPS51117 is available in a 14-pin VQFN or a 14-pin TSSOP package and is specified from –40°C to 85°C.
Documents
Technical documentation and resources
