TPS54427DDAR

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Texas Instruments

4.5V TO 18V INPUT, 4-A SYNCHRONOUS STEP-DOWN CONVERTER

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TPS54427DDAR

Active

Texas Instruments

4.5V TO 18V INPUT, 4-A SYNCHRONOUS STEP-DOWN CONVERTER

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Description Specifications Series Pricing CAD Documents

Description

General part information

TPS54427 Series

The TPS54427 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54427 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution.

The main control loop for the TPS54427 uses the D-CAP2™ mode control which provides a fast transient response with no external compensation components.

The TPS54427 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors.

Technical Specifications

Parameters and characteristics for this part

Specification	TPS54427DDAR

Current - Output	4 A
Frequency - Switching	650 kHz
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 Type	Adjustable
Package Length	0.154 in
Package Name	8-PowerSOIC, 8-SO PowerPad
Package Width	3.9 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	18 V
Voltage - Input (Min)	4.5 V
Voltage - Output (Max)	7 V
Voltage - Output (Min/Fixed)	0.76 V

TPS54427 Series

4.5V to 18V Input, 4-A Synchronous Step-Down Converter

Part	Board Type	Total Output Count	Output Type	Non-Isolated Output Count	Supplied Contents	Frequency - Switching	Contents	Voltage - Input (Minimum)	Voltage - Input (Maximum)	Current - Output	Regulator Topology	Main Purpose	Utilized IC / Part	Voltage - Output	Number of Outputs	Voltage - Input (Min)	Voltage - Input (Max)	Output Configuration	Topology	Package Width	Package Name	Package Length	Synchronous Rectifier	Function	Voltage - Output (Min/Fixed)	Package / Case	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Output (Max)	Mounting Type
Texas Instruments TPS54427EVM-052	Fully Populated	1	Non-Isolated	1 count	Board(s)	650 kHz	Board	4.5 V	18 V	4 A	Buck	DC/DC Step Down	TPS54427	1.05 V
Texas Instruments TPS54427DRCT			Adjustable			650 kHz				4 A					1	4.5 V	18 V	Positive	Buck	3 mm	10-VSON	3 mm	Yes	Step-Down	0.76 V	10-VFDFN Exposed Pad	85 °C	-40 °C	7 V	Surface Mount
Texas Instruments TPS54427DDA			Adjustable			650 kHz				4 A					1	4.5 V	18 V	Positive	Buck	3.9 mm	8-PowerSOIC 8-SO PowerPad	0.154 in	Yes	Step-Down	0.76 V		85 °C	-40 °C	7 V	Surface Mount
Texas Instruments TPS54427DRCR			Adjustable			650 kHz				4 A					1	4.5 V	18 V	Positive	Buck	3 mm	10-VSON	3 mm	Yes	Step-Down	0.76 V	10-VFDFN Exposed Pad	85 °C	-40 °C	7 V	Surface Mount
Texas Instruments TPS54427DDAR			Adjustable			650 kHz				4 A					1	4.5 V	18 V	Positive	Buck	3.9 mm	8-PowerSOIC 8-SO PowerPad	0.154 in	Yes	Step-Down	0.76 V		85 °C	-40 °C	7 V	Surface Mount

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

TPS54427 Step-Down Converter Evaluation Module User's Guide (Rev. A)

TPS54427 4.5-V to 18-V Input, 4-A Output Single Synchronous Step-Down Switcher With Integrated FET datasheet (Rev. C)

Optimize Output Filter on D-CAP2 for Stability Improvement

D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On-