Integrated Circuits (ICs)

TPS40077PWPR

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4.5-V TO 28-V, SYNCHRONOUS BUCK CONTROLLER WITH VOLTAGE FEED FORWARD IN HTSSOP PACKAGE

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DocumentsTPS40077 4.5-V to 28-V Input, Voltage Mode, Synchronous Buck Controller With Voltage Feed Forward datasheet (Rev. E)

Integrated Circuits (ICs)

TPS40077PWPR

Active

Texas Instruments

4.5-V TO 28-V, SYNCHRONOUS BUCK CONTROLLER WITH VOLTAGE FEED FORWARD IN HTSSOP PACKAGE

Deep-Dive with AI

DocumentsTPS40077 4.5-V to 28-V Input, Voltage Mode, Synchronous Buck Controller With Voltage Feed Forward datasheet (Rev. E)

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	TPS40077PWPR

Clock Sync	False
Control Features	Soft Start, Frequency Control, Current Limit, Power Good
Duty Cycle (Max) [Max]	93 %
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]	28 V
Voltage - Supply (Vcc/Vdd) [Min]	4.5 V

TPS40077 Series

4.5-V to 28-V, synchronous buck controller with voltage feed forward in HTSSOP package

Part	Regulator Topology	Frequency - Switching	Voltage - Output	Outputs and Type	Outputs and Type	Voltage - Input [Max]	Voltage - Input [Min]	Utilized IC / Part	Main Purpose	Supplied Contents	Current - Output	Board Type	Function	Topology	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Package / Case	Package / Case	Output Configuration	Number of Outputs	Supplier Device Package	Frequency - Switching [Max]	Output Phases	Output Type	Control Features	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Duty Cycle (Max) [Max]
Texas Instruments TPS40077EVM-001	Buck	300 kHz	1.8 V	Non-Isolated	1	16 V	8 V	TPS40077	DC/DC Step Down	Board(s)	10 A	Fully Populated
Texas Instruments TPS40077PWP													Step-Down	Buck	85 °C	-40 °C	Surface Mount	16-PowerTSSOP	0.173 in 4.4 mm Width	Positive	1	16-HTSSOP	1 MHz	1	Transistor Driver	Current Limit Frequency Control Power Good Soft Start	4.5 V	28 V	93 %
Texas Instruments TPS40077PWPG4													Step-Down	Buck	85 °C	-40 °C	Surface Mount	16-PowerTSSOP	0.173 in 4.4 mm Width	Positive	1	16-HTSSOP	1 MHz	1	Transistor Driver	Current Limit Frequency Control Power Good Soft Start	4.5 V	28 V	93 %
Texas Instruments TPS40077PWPR													Step-Down	Buck	85 °C	-40 °C	Surface Mount	16-PowerTSSOP	0.173 in 4.4 mm Width	Positive	1	16-HTSSOP	1 MHz	1	Transistor Driver	Current Limit Frequency Control Power Good Soft Start	4.5 V	28 V	93 %

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	$ 3.08
		10	$ 2.76
		25	$ 2.61
		100	$ 2.26
		250	$ 2.15
		500	$ 1.93
		1000	$ 1.63
	Digi-Reel®	1	$ 3.08
		10	$ 2.76
		25	$ 2.61
		100	$ 2.26
		250	$ 2.15
		500	$ 1.93
		1000	$ 1.63
	Tape & Reel (TR)	2000	$ 1.54
		6000	$ 1.49
Texas Instruments	LARGE T&R	1	$ 2.56
		100	$ 2.24
		250	$ 1.57
		1000	$ 1.26

Description

General part information

TPS40077 Series

The TPS40077 is a mid-voltage, wide-input (4.5-V to 28-V), synchronous, step-down controller, offering design flexibility for a variety of user-programmable functions, including soft start, undervoltage lockout (UVLO), operating frequency, voltage feed-forward, and high-side, FET-sensed, short-circuit protection.

The TPS40077 drives external N-channel MOSFETs using second-generation, predictive-gate drive to minimize conduction in the body diode of the low-side FET and maximize efficiency. Pre-biased outputs are supported by not allowing the low-side FET to turn on until the voltage commanded by the closed-loop soft start is greater than the pre-bias voltage. Voltage feed-forward provides good response to input transients and provides a constant PWM gain over a wide input-voltage operating range to ease compensation requirements. Programmable short-circuit protection provides fault-current limiting and hiccup recovery to minimize power dissipation with a shorted output. The 16-pin PowerPAD package gives good thermal performance and a compact footprint.

Documents

Technical documentation and resources

TPS40077 4.5-V to 28-V Input, Voltage Mode, Synchronous Buck Controller With Voltage Feed Forward datasheet (Rev. E)

Data sheet