TPS566231 Series

3-V to 18-V input, 6-A synchronous step-down voltage regulator with pulse skip mode

Catalog

3-V to 18-V input, 6-A synchronous step-down voltage regulator with pulse skip mode

Part	Frequency - Switching	Output Configuration	Voltage - Input (Max) [Max]	Voltage - Output (Max) [Max]	Function	Output Type	Number of Outputs	Mounting Type	Voltage - Output (Min/Fixed)	Synchronous Rectifier	Supplier Device Package [x]	Supplier Device Package	Supplier Device Package [y]	Package / Case	Voltage - Input (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Topology	Current - Output
Texas Instruments TPS566231PRQFR	600 kHz	Positive	18 V	7 V	Step-Down	Adjustable	1	Surface Mount	0.6 V		1.5	9-VQFN-HR	2	9-PowerVFQFN	3 V	-40 °C	125 ¯C	Buck	6 A

Catalog

3-V to 18-V input, 6-A synchronous step-down voltage regulator with pulse skip mode

Key Features

• Configured for rugged applications3-V to 18-V input voltage range0.6-V to 7-V output voltage range6-A continuous output current0.6-V ±1% reference voltage (25°C)98% maximum duty cycle600-kHz switching frequencyNon-latched for OC, OV, UV, and OT protectionsBuilt-in output discharge functionNumerous pin-compatible optionsTPS566231 and TPS566238 with SS pin for adjustable soft-start timeTPS566231P and TPS566238P with PG pin for power-good indicatorTPS566231 and TPS566231P for auto-skip modeTPS566238 and TPS566238P for continuous current modeMandarin data sheet availableSmall design size and ease of useIntegrated power MOSFET with RDS(on) 20.8 mΩ and 10.6 mΩD-CAP3™ control mode for fast transient response and internal compensation1.5-mm × 2.0-mm HotRod™ QFN packageCreate a custom design with theWEBENCH Power DesignerConfigured for rugged applications3-V to 18-V input voltage range0.6-V to 7-V output voltage range6-A continuous output current0.6-V ±1% reference voltage (25°C)98% maximum duty cycle600-kHz switching frequencyNon-latched for OC, OV, UV, and OT protectionsBuilt-in output discharge functionNumerous pin-compatible optionsTPS566231 and TPS566238 with SS pin for adjustable soft-start timeTPS566231P and TPS566238P with PG pin for power-good indicatorTPS566231 and TPS566231P for auto-skip modeTPS566238 and TPS566238P for continuous current modeMandarin data sheet availableSmall design size and ease of useIntegrated power MOSFET with RDS(on) 20.8 mΩ and 10.6 mΩD-CAP3™ control mode for fast transient response and internal compensation1.5-mm × 2.0-mm HotRod™ QFN packageCreate a custom design with theWEBENCH Power Designer

Description

The TPS56623x are simple, easy-to-use, high-efficiency, 6-A synchronous buck converters in a QFN 9-pin 1.5-mm × 2.0-mm package. The devices operate with wider supply input voltage ranging from 3 V to 18 V. The D-CAP3 control mode is adopted to provide a fast transient response, good line and load regulation, no requirement for external compensation, and support to low-ESR output capacitors. The TPS566231 and TPS566231P operate in Eco-mode for high efficiency during light load operation. The devices are designed as the ULQ™ DC/DC converter, achieving 50-µA quiescent current to enable long battery life in low-power applications. The TPS566238 and TPS566238P operate in continuous current mode, which maintains lower output ripple during all load conditions. The TPS566231 and TPS566238 soft-start time can be adjusted through the SS pin. The TPS566231P and TPS566238P indicate power good through the PG pin. The TPS56623x can support up to 98% duty cycle operation, and integrate complete protection through OVP, OCP, UVLO, OTP, and UVP with hiccup. The devices are each available in a 9-pin 1.5-mm × 2.0-mm HotRod package. The junction temperature is specified from –40°C to 125°C. The TPS56623x are simple, easy-to-use, high-efficiency, 6-A synchronous buck converters in a QFN 9-pin 1.5-mm × 2.0-mm package. The devices operate with wider supply input voltage ranging from 3 V to 18 V. The D-CAP3 control mode is adopted to provide a fast transient response, good line and load regulation, no requirement for external compensation, and support to low-ESR output capacitors. The TPS566231 and TPS566231P operate in Eco-mode for high efficiency during light load operation. The devices are designed as the ULQ™ DC/DC converter, achieving 50-µA quiescent current to enable long battery life in low-power applications. The TPS566238 and TPS566238P operate in continuous current mode, which maintains lower output ripple during all load conditions. The TPS566231 and TPS566238 soft-start time can be adjusted through the SS pin. The TPS566231P and TPS566238P indicate power good through the PG pin. The TPS56623x can support up to 98% duty cycle operation, and integrate complete protection through OVP, OCP, UVLO, OTP, and UVP with hiccup. The devices are each available in a 9-pin 1.5-mm × 2.0-mm HotRod package. The junction temperature is specified from –40°C to 125°C.