TPS51117PWR

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Texas Instruments

SWITCHING CONTROLLERS WIDE VIN SYNC BUCK F OR LIGHT LOAD EFF A 595-TPS51117PW

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TPS51117PWR

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Texas Instruments

SWITCHING CONTROLLERS WIDE VIN SYNC BUCK F OR LIGHT LOAD EFF A 595-TPS51117PW

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Description Specifications Series Pricing CAD Documents

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.

Technical Specifications

Parameters and characteristics for this part

Specification	TPS51117PWR

Clock Sync	No
Control Features	Enable, On Time Control, Power Good
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 Length	0.173 in
Package Name	14-TSSOP
Package Width	4.4 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Supply (Vcc/Vdd) Maximum	5.5 V
Voltage - Supply (Vcc/Vdd) Minimum	4.5 V

TPS51117 Series

Part	Mounting Type	Output Configuration	Function	Number of Outputs	Package Name	Control Features	Synchronous Rectifier	Package Width	Package Length	Output Type	Clock Sync	Topology	Output Phases	Voltage - Supply (Vcc/Vdd) Maximum	Voltage - Supply (Vcc/Vdd) Minimum	Operating Temperature (Max)	Operating Temperature (Min)	Package / Case
Texas Instruments TPS51117PWRG4	Surface Mount	Positive	Step-Down	1	14-TSSOP	Enable On Time Control Power Good	Yes	4.4 mm	0.173 in	Transistor Driver	No	Buck	1	5.5 V	4.5 V	85 °C	-40 °C
Texas Instruments TPS51117RGYR	Surface Mount	Positive	Step-Down	1	14-VQFN	Enable On Time Control Power Good	Yes	3.5 mm	3.5 mm	Transistor Driver	No	Buck	1	5.5 V	4.5 V	85 °C	-40 °C	14-VFQFN Exposed Pad
Texas Instruments TPS51117RGYTG4	Surface Mount	Positive	Step-Down	1	14-VQFN	Enable On Time Control Power Good	Yes	3.5 mm	3.5 mm	Transistor Driver	No	Buck	1	5.5 V	4.5 V	85 °C	-40 °C	14-VFQFN Exposed Pad
Texas Instruments TPS51117PWR	Surface Mount	Positive	Step-Down	1	14-TSSOP	Enable On Time Control Power Good	Yes	4.4 mm	0.173 in	Transistor Driver	No	Buck	1	5.5 V	4.5 V	85 °C	-40 °C
Texas Instruments TPS51117PW	Surface Mount	Positive	Step-Down	1	14-TSSOP	Enable On Time Control Power Good	Yes	4.4 mm	0.173 in	Transistor Driver	No	Buck	1	5.5 V	4.5 V	85 °C	-40 °C
Texas Instruments TPS51117RGYT	Surface Mount	Positive	Step-Down	1	14-VQFN	Enable On Time Control Power Good	Yes	3.5 mm	3.5 mm	Transistor Driver	No	Buck	1	5.5 V	4.5 V	85 °C	-40 °C	14-VFQFN Exposed Pad

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

TPS51117PWR | Datasheet

TPS51117 Single Synchronous Step-Down Controller datasheet (Rev. C)