TPS62865 Series

2.4-V to 5.5-V input, 4-A synchronous step-down converter in 1.5-mm x 2.5-mm QFN package

Catalog

2.4-V to 5.5-V input, 4-A synchronous step-down converter in 1.5-mm x 2.5-mm QFN package

Part	Voltage - Output (Min/Fixed)	Number of Outputs	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Min) [Min]	Voltage - Output (Max) [Max]	Synchronous Rectifier	Voltage - Input (Max) [Max]	Function	Output Configuration	Package / Case	Supplier Device Package [x]	Supplier Device Package	Supplier Device Package [y]	Topology	Current - Output	Frequency - Switching	Output Type	Mounting Type
Texas Instruments TPS62865RQYR	0.6 V	1	-40 °C	125 ¯C	2.4 V	5.5 V		5.5 V	Step-Down	Positive	9-PowerVFQFN	1.5	9-VQFN-HR	2.5	Buck	4 A	2.4 MHz	Adjustable	Surface Mount

Catalog

2.4-V to 5.5-V input, 4-A synchronous step-down converter in 1.5-mm x 2.5-mm QFN package

Key Features

• DCS-Control topology for fast transient response11-mΩ and 10.5-mΩ internal power MOSFETs1% output voltage accuracy4-µA operating quiescent current2.4-V to 5.5-V input voltage range0.6-V to VINoutput voltage rangeFixed (selectable by external resistor) and adjustable output voltage versions2.4-MHz switching frequencyForced PWM or power save modeOutput voltage discharge100% duty cycle modeHiccup short-circuit protectionPower good indicator with window comparatorThermal shutdownSolution sizes down to 30 mm2possibleAvailable in 1.5-mm × 2.5-mm QFN with 0.5-mm pitchCreate a custom design using the TPS62865 with theWEBENCH Power DesignerCreate a custom design using the TPS62867 with theWEBENCH Power DesignerDCS-Control topology for fast transient response11-mΩ and 10.5-mΩ internal power MOSFETs1% output voltage accuracy4-µA operating quiescent current2.4-V to 5.5-V input voltage range0.6-V to VINoutput voltage rangeFixed (selectable by external resistor) and adjustable output voltage versions2.4-MHz switching frequencyForced PWM or power save modeOutput voltage discharge100% duty cycle modeHiccup short-circuit protectionPower good indicator with window comparatorThermal shutdownSolution sizes down to 30 mm2possibleAvailable in 1.5-mm × 2.5-mm QFN with 0.5-mm pitchCreate a custom design using the TPS62865 with theWEBENCH Power DesignerCreate a custom design using the TPS62867 with theWEBENCH Power Designer

Description

The TPS62865 and TPS62867 devices are high-frequency synchronous step-down converters which provide an efficient, flexible, and high power-density solution. At medium to heavy loads, the converters operate in PWM mode and automatically enter Power Save Mode operation at light load to maintain high efficiency over the entire load current range. The devices can also be forced in PWM mode operation to minimize output voltage ripple. Together with its DCS-control architecture, excellent load transient performance and tight output voltage accuracy are achieved. The devices feature a Power Good signal and an internal soft start circuit. The devices are able to operate in 100% mode. For fault protection, the devices incorporate a HICCUP short circuit protection as well as a thermal shutdown. The TPS62865 and TPS62867 devices are high-frequency synchronous step-down converters which provide an efficient, flexible, and high power-density solution. At medium to heavy loads, the converters operate in PWM mode and automatically enter Power Save Mode operation at light load to maintain high efficiency over the entire load current range. The devices can also be forced in PWM mode operation to minimize output voltage ripple. Together with its DCS-control architecture, excellent load transient performance and tight output voltage accuracy are achieved. The devices feature a Power Good signal and an internal soft start circuit. The devices are able to operate in 100% mode. For fault protection, the devices incorporate a HICCUP short circuit protection as well as a thermal shutdown.