Integrated Circuits (ICs)

TPS51117PWR

Active

Texas Instruments

1.8-V TO 28-V, SYNCHRONOUS D-CAP BUCK CONTOLLER WITH LIGHT LOAD EFFICIENCY

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsDatasheet

Integrated Circuits (ICs)

TPS51117PWR

Active

Texas Instruments

1.8-V TO 28-V, SYNCHRONOUS D-CAP BUCK CONTOLLER WITH LIGHT LOAD EFFICIENCY

Deep-Dive with AI

DocumentsDatasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	TPS51117PWR

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-TSSOP
Package / Case [custom]	0.173 "
Package / Case [custom]	4.4 mm
Supplier Device Package	14-TSSOP
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	5.5 V
Voltage - Supply (Vcc/Vdd) [Min]	4.5 V

TPS51117 Series

1.8-V to 28-V, synchronous D-CAP buck contoller with light load efficiency

Part	Function	Package / Case [custom]	Package / Case [custom]	Package / Case	Output Type	Supplier Device Package	Number of Outputs	Topology	Output Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Output Phases	Mounting Type
Texas Instruments TPS51117PWRG4	Step-Down	0.173 "	4.4 mm	14-TSSOP	Transistor Driver	14-TSSOP	1	Buck	Positive	85 °C	-40 °C	5.5 V	4.5 V	1	Surface Mount
Texas Instruments TPS51117RGYR	Step-Down			14-VFQFN Exposed Pad	Transistor Driver	14-VQFN (3.5x3.5)	1	Buck	Positive	85 °C	-40 °C	5.5 V	4.5 V	1	Surface Mount
Texas Instruments TPS51117RGYTG4	Step-Down			14-VFQFN Exposed Pad	Transistor Driver	14-VQFN (3.5x3.5)	1	Buck	Positive	85 °C	-40 °C	5.5 V	4.5 V	1	Surface Mount
Texas Instruments TPS51117PWR	Step-Down	0.173 "	4.4 mm	14-TSSOP	Transistor Driver	14-TSSOP	1	Buck	Positive	85 °C	-40 °C	5.5 V	4.5 V	1	Surface Mount
Texas Instruments TPS51117RGYT	Step-Down			14-VFQFN Exposed Pad	Transistor Driver	14-VQFN (3.5x3.5)	1	Buck	Positive	85 °C	-40 °C	5.5 V	4.5 V	1	Surface Mount

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	$ 1.87
		10	$ 1.68
		25	$ 1.58
		100	$ 1.35
		250	$ 1.26
		500	$ 1.11
		1000	$ 0.92
	Digi-Reel®	1	$ 1.87
		10	$ 1.68
		25	$ 1.58
		100	$ 1.35
		250	$ 1.26
		500	$ 1.11
		1000	$ 0.92
	Tape & Reel (TR)	2000	$ 0.78
Texas Instruments	LARGE T&R	1	$ 1.54
		100	$ 1.27
		250	$ 0.92
		1000	$ 0.69

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