TPS54202 Series

4.5V to 28V Input, 2A Output, EMI Friendly Synchronous Step-Down Converter

Catalog

4.5V to 28V Input, 2A Output, EMI Friendly Synchronous Step-Down Converter

Part	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Synchronous Rectifier	Current - Output	Function	Supplier Device Package	Voltage - Input (Max) [Max]	Voltage - Output (Max)	Mounting Type	Number of Outputs	Voltage - Output (Min/Fixed)	Voltage - Input (Min) [Min]	Frequency - Switching	Output Type	Output Configuration	Topology	Utilized IC / Part	Regulator Topology	Supplied Contents	Voltage - Output	Main Purpose	Voltage - Input [Max]	Voltage - Input [Min]	Outputs and Type	Outputs and Type	Board Type
Texas Instruments TPS54202DDCR	-40 °C	125 ¯C	SOT-23-6 Thin TSOT-23-6		2 A	Step-Down	SOT-23-THIN	28 V	28 V	Surface Mount	1	0.596 V	4.5 V	500 kHz	Adjustable	Positive	Buck
Texas Instruments TPS54202HEVM-716					2 A									500 kHz				TPS54202H	Buck	Board(s)	5 V	DC/DC Step Down	28 V	4.2 V	Non-Isolated	1	Fully Populated

Catalog

4.5V to 28V Input, 2A Output, EMI Friendly Synchronous Step-Down Converter

Key Features

• 4.5-V to 28-V wide input voltage rangeIntegrated 148-mΩ and 78-mΩ MOSFETs for 2-A, continuous output currentLow 2-µA shutdown, 45-µA quiescent currentInternal 5-mS soft startFixed 500-kHz switching frequencyFrequency spread spectrum to reduce EMIAdvanced Eco-mode™ pulse skipPeak current mode controlInternal loop compensationOvercurrent protection for both MOSFETs with hiccup mode protectionOvervoltage protectionThermal shutdownSOT-23 (6) package4.5-V to 28-V wide input voltage rangeIntegrated 148-mΩ and 78-mΩ MOSFETs for 2-A, continuous output currentLow 2-µA shutdown, 45-µA quiescent currentInternal 5-mS soft startFixed 500-kHz switching frequencyFrequency spread spectrum to reduce EMIAdvanced Eco-mode™ pulse skipPeak current mode controlInternal loop compensationOvercurrent protection for both MOSFETs with hiccup mode protectionOvervoltage protectionThermal shutdownSOT-23 (6) package

Description

The TPS54202 is a 4.5-V to 28-V input voltage range, 2-A synchronous buck converter. The device includes two integrated switching FETs, internal loop compensation and 5-ms internal soft start to reduce component count. By integrating the MOSFETs and employing the SOT-23 package, the TPS54202 achieves the high power density and offers a small footprint on the PCB. Advanced Eco-mode implementation maximizes the light load efficiency and reduces the power loss. The frequency spread spectrum operation is introduced for EMI reduction. Cycle-by-cycle current limit in both high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. Hiccup mode protection is triggered if the overcurrent condition has persisted for longer than the present time. The TPS54202 is a 4.5-V to 28-V input voltage range, 2-A synchronous buck converter. The device includes two integrated switching FETs, internal loop compensation and 5-ms internal soft start to reduce component count. By integrating the MOSFETs and employing the SOT-23 package, the TPS54202 achieves the high power density and offers a small footprint on the PCB. Advanced Eco-mode implementation maximizes the light load efficiency and reduces the power loss. The frequency spread spectrum operation is introduced for EMI reduction. Cycle-by-cycle current limit in both high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. Hiccup mode protection is triggered if the overcurrent condition has persisted for longer than the present time.