TPS54427 Series

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

Catalog

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

Part	Board Type	Outputs and Type	Outputs and Type	Supplied Contents	Frequency - Switching	Contents	Voltage - Input [Max]	Voltage - Input [Min]	Current - Output	Regulator Topology	Main Purpose	Utilized IC / Part	Voltage - Output	Mounting Type	Output Type	Voltage - Output (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Voltage - Output (Min/Fixed)	Function	Supplier Device Package	Topology	Output Configuration	Voltage - Input (Max) [Max]	Voltage - Input (Min) [Min]	Number of Outputs
Texas Instruments TPS54427EVM-052	Fully Populated	1	1 Non-Isolated Output Non-Isolated	Board(s)	650 kHz	Board(s)	18 V	4.5 V	4 A	Buck	DC/DC Step Down	TPS54427	1.05 V
Texas Instruments TPS54427DRCT					650 kHz				4 A					Surface Mount	Adjustable	7 V	85 C	-40 ¯C	10-VFDFN Exposed Pad	0.76 V	Step-Down	10-VSON (3x3)	Buck	Positive	18 V	4.5 V	1
Texas Instruments TPS54427DDA					650 kHz				4 A					Surface Mount	Adjustable	7 V	85 C	-40 ¯C	8-PowerSOIC (0.154" 3.90mm Width)	0.76 V	Step-Down	8-SO PowerPad	Buck	Positive	18 V	4.5 V	1
Texas Instruments TPS54427DRCR					650 kHz				4 A					Surface Mount	Adjustable	7 V	85 C	-40 ¯C	10-VFDFN Exposed Pad	0.76 V	Step-Down	10-VSON (3x3)	Buck	Positive	18 V	4.5 V	1
Texas Instruments TPS54427DDAR					650 kHz				4 A					Surface Mount	Adjustable	7 V	85 C	-40 ¯C	8-PowerSOIC (0.154" 3.90mm Width)	0.76 V	Step-Down	8-SO PowerPad	Buck	Positive	18 V	4.5 V	1

Catalog

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

Description

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. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54427 is available in the 8-pin DDA package and 10-pin DRC, and is designed to operate from –40°C to 85°C. 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. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54427 is available in the 8-pin DDA package and 10-pin DRC, and is designed to operate from –40°C to 85°C.