Specification	TPS40054PWPR

Clock Sync	True
Control Features	Enable, Soft Start, Frequency Control, Current Limit
Duty Cycle (Max) [Max]	94 %
Frequency - Switching [Max]	1 MHz
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	16-PowerTSSOP
Package / Case	0.173 in, 4.4 mm Width
Supplier Device Package	16-HTSSOP
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	40 V
Voltage - Supply (Vcc/Vdd) [Min]	8 V

TPS40054 Series

Part	Duty Cycle (Max) [Max]	Control Features	Supplier Device Package	Output Configuration	Output Phases	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Topology	Output Type	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Package / Case	Package / Case	Frequency - Switching [Max]	Function
Texas Instruments TPS40054PWPR	94 %	Current Limit Enable Frequency Control Soft Start	16-HTSSOP	Positive	1	Surface Mount	85 °C	-40 °C	1	Buck	Transistor Driver	8 V	40 V	16-PowerTSSOP	0.173 in 4.4 mm Width	1 MHz	Step-Down
Texas Instruments TPS40054PWPRG4	94 %	Current Limit Enable Frequency Control Soft Start	16-HTSSOP	Positive	1	Surface Mount	85 °C	-40 °C	1	Buck	Transistor Driver	8 V	40 V	16-PowerTSSOP	0.173 in 4.4 mm Width	1 MHz	Step-Down
Texas Instruments TPS40054PWP	94 %	Current Limit Enable Frequency Control Soft Start	16-HTSSOP	Positive	1	Surface Mount	85 °C	-40 °C	1	Buck	Transistor Driver	8 V	40 V	16-PowerTSSOP	0.173 in 4.4 mm Width	1 MHz	Step-Down
Texas Instruments TPS40054PWPG4	94 %	Current Limit Enable Frequency Control Soft Start	16-HTSSOP	Positive	1	Surface Mount	85 °C	-40 °C	1	Buck	Transistor Driver	8 V	40 V	16-PowerTSSOP	0.173 in 4.4 mm Width	1 MHz	Step-Down

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	$ 5.02
		10	$ 4.51
		25	$ 4.26
		100	$ 3.69
		250	$ 3.51
		500	$ 3.15
		1000	$ 2.65
	Digi-Reel®	1	$ 5.02
		10	$ 4.51
		25	$ 4.26
		100	$ 3.69
		250	$ 3.51
		500	$ 3.15
		1000	$ 2.65
	Tape & Reel (TR)	2000	$ 2.52
Texas Instruments	LARGE T&R	1	$ 4.36
		100	$ 3.82
		250	$ 2.68
		1000	$ 2.16

Description

General part information

TPS40054 Series

The TPS4005x is a family of high-voltage, wide-input (8 V to 40 V), synchronous, step-down controllers. The TPS4005x family offers design flexibility with a variety of user-programmable functions, including soft start, UVLO, operating frequency, voltage feedforward, high-side current limit, and loop compensation.

The TPS4005x uses voltage feedforward control techniques to provide good line regulation over the wide (4:1) input voltage range, and fast response to input line transients. Near-constant modulator gain with input variation eases loop compensation. The externally programmable current limit provides pulse-by-pulse current limit, as well as hiccup mode operation using an internal fault counter for longer duration overloads.

The new products, LM5145 and LM5146, offer reduced BOM cost, higher efficiency, and reduced solution size among many other features. Start a WEBENCH design withLM5145andLM5146.

Documents

Technical documentation and resources

TPS4005x Wide-Input Synchronous Buck Controller datasheet (Rev. J)

Data sheet