TPS54526 Series

4.5V to 18V Input, 5.5A Synchronous Step-Down Converter with Eco-Mode™

Catalog

4.5V to 18V Input, 5.5A Synchronous Step-Down Converter with Eco-Mode™

Part	Output Configuration	Voltage - Input (Min) [Min]	Number of Outputs	Output Type	Current - Output	Voltage - Output (Max) [Max]	Package / Case	Mounting Type	Function	Voltage - Output (Min/Fixed)	Frequency - Switching	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Input (Max) [Max]	Topology	Package / Case [y]	Package / Case [x]	Voltage - Output	Board Type	Outputs and Type	Outputs and Type	Utilized IC / Part	Voltage - Input [Max]	Voltage - Input [Min]	Regulator Topology	Main Purpose	Supplied Contents
Texas Instruments TPS54526RSAT	Positive	4.5 V	1	Adjustable	5.5 A	5.5 V	16-VQFN Exposed Pad	Surface Mount	Step-Down	0.76 V	650 kHz	16-QFN (4x4)	85 °C	-40 °C	18 V	Buck
Texas Instruments TPS54526RSAR	Positive	4.5 V	1	Adjustable	5.5 A	5.5 V	16-VQFN Exposed Pad	Surface Mount	Step-Down	0.76 V	650 kHz	16-QFN (4x4)	85 °C	-40 °C	18 V	Buck
Texas Instruments TPS54526PWPR	Positive	4.5 V	1	Adjustable	5.5 A	5.5 V	14-PowerTSSOP	Surface Mount	Step-Down	0.76 V	650 kHz	14-HTSSOP	85 °C	-40 °C	18 V	Buck	4.4 mm	0.173 in
Texas Instruments TPS54526EVM-608					5.5 A						650 kHz								1.05 V	Fully Populated	Non-Isolated	1	TPS54526	18 V	4.5 V	Buck	DC/DC Step Down	Board(s)

Catalog

4.5V to 18V Input, 5.5A Synchronous Step-Down Converter with Eco-Mode™

Key Features

• D-CAP2™ mode enables fast transient responseLow output ripple and allows ceramic output capacitorWide VINinput voltage range: 4.5 V to 18 VOutput voltage range: 0.76 V to 5.5 VHighly efficient integrated FETs optimized for lower duty cycle applications – 63 mΩ (high side) and 33 mΩ (low side)High efficiency, less than 10 µA at shutdownHigh initial bandgap reference accuracyAdjustable soft startPre-biased soft start650-kHz switching frequency (fSW)Cycle-by-cycle over current limitPower good outputAuto-skip Eco-mode™ for high efficiency at light loadD-CAP2™ mode enables fast transient responseLow output ripple and allows ceramic output capacitorWide VINinput voltage range: 4.5 V to 18 VOutput voltage range: 0.76 V to 5.5 VHighly efficient integrated FETs optimized for lower duty cycle applications – 63 mΩ (high side) and 33 mΩ (low side)High efficiency, less than 10 µA at shutdownHigh initial bandgap reference accuracyAdjustable soft startPre-biased soft start650-kHz switching frequency (fSW)Cycle-by-cycle over current limitPower good outputAuto-skip Eco-mode™ for high efficiency at light load

Description

The TPS54526 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54526 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 TPS54526 uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54526 to maintain high efficiency during lighter load conditions. The TPS54526 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, 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 0.76V and 5.5V. The device also features an adjustable soft start time and a power good function. The TPS54526 is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –40°C to 85°C. The TPS54526 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54526 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 TPS54526 uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54526 to maintain high efficiency during lighter load conditions. The TPS54526 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, 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 0.76V and 5.5V. The device also features an adjustable soft start time and a power good function. The TPS54526 is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –40°C to 85°C.