TPS56520 Series

17V Input, 5A Synchronous Step-Down Regulator with Voltage Scaling

Catalog

17V Input, 5A Synchronous Step-Down Regulator with Voltage Scaling

Part	Output Configuration	Supplier Device Package	Voltage - Output (Min/Fixed)	Package / Case	Package / Case [custom]	Package / Case	Output Type	Voltage - Output (Max)	Synchronous Rectifier	Current - Output	Mounting Type	Function	Frequency - Switching	Topology	Number of Outputs	Voltage - Input (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Max) [Max]
Texas Instruments TPS56520PWP	Positive	20-HTSSOP	0.6 V	20-PowerTSSOP	4.4 mm	0.173 in	Adjustable (Programmable)	1.87 V		5 A	Surface Mount	Step-Down	500 kHz	Buck	1	4.5 V	-40 °C	125 ¯C	17 V
Texas Instruments TPS56520PWPR	Positive	20-HTSSOP	0.6 V	20-PowerTSSOP	4.4 mm	0.173 in	Adjustable (Programmable)	1.87 V		5 A	Surface Mount	Step-Down	500 kHz	Buck	1	4.5 V	-40 °C	125 ¯C	17 V

Catalog

17V Input, 5A Synchronous Step-Down Regulator with Voltage Scaling

Key Features

• D-CAP2™ ControlInput Voltage Range: 4.5V to 17VSwitching Frequency: 500kHzOptimized for a 1.0µH to 2.2µH Inductor±1% Output Voltage AccuracyFeatures via I2C Compatible InterfaceOutput Voltage (VID): 0.6V to 1.87V in 10mVAuto-Skip Eco-mode™ ON/OFF (Light-load)Current Limit Target: 40% to 160%Enabling IC, Reading-back Power-goodHiccup Mode Protection ON/OFFIC Terminal FeaturesStart-up by Using External ResistorsOutput Voltage with VFB Pin: 0.6V to 1.87VAdjustable Soft-start,Monotonic Pre-Biased Start-upPower-goodI2C Address Programming (2bits)Cycle-by-Cycle Overcurrent Limiting ControlThermal Shutdown (TSD)Undervoltage Lockout (UVLO)TSSOP Package (PWP) with PowerPAD™D-CAP2™ ControlInput Voltage Range: 4.5V to 17VSwitching Frequency: 500kHzOptimized for a 1.0µH to 2.2µH Inductor±1% Output Voltage AccuracyFeatures via I2C Compatible InterfaceOutput Voltage (VID): 0.6V to 1.87V in 10mVAuto-Skip Eco-mode™ ON/OFF (Light-load)Current Limit Target: 40% to 160%Enabling IC, Reading-back Power-goodHiccup Mode Protection ON/OFFIC Terminal FeaturesStart-up by Using External ResistorsOutput Voltage with VFB Pin: 0.6V to 1.87VAdjustable Soft-start,Monotonic Pre-Biased Start-upPower-goodI2C Address Programming (2bits)Cycle-by-Cycle Overcurrent Limiting ControlThermal Shutdown (TSD)Undervoltage Lockout (UVLO)TSSOP Package (PWP) with PowerPAD™

Description

The TPS56X20 is a synchronous DC-DC converter IC (integrated circuit) with a voltage scaling control to power up micro-processors (MCUs) requiring core voltage (VCORE) tune-ups. After the initial power-up, the output voltage can be programmed/scaled by VID codes sent over an I2C compatible bus. This step-down (buck) converter employs an adaptive on-time D-CAP2 mode control which provides a very fast transient response with no external components. Unlike traditional voltage-/current-mode controls, the D-CAP2 supports seamless transition between PWM mode for higher load and Eco-mode™ for light load. Eco-mode maintains high efficiency in light-load. The TPS56X20 supports both ultra-low ESR ceramic capacitors and low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP. The device is optimized for a small 1.0µH to 2.2µH inductor saving PCB area. The TPS56X20 devices are available in the HTSSOP package. The TPS56X20 is a synchronous DC-DC converter IC (integrated circuit) with a voltage scaling control to power up micro-processors (MCUs) requiring core voltage (VCORE) tune-ups. After the initial power-up, the output voltage can be programmed/scaled by VID codes sent over an I2C compatible bus. This step-down (buck) converter employs an adaptive on-time D-CAP2 mode control which provides a very fast transient response with no external components. Unlike traditional voltage-/current-mode controls, the D-CAP2 supports seamless transition between PWM mode for higher load and Eco-mode™ for light load. Eco-mode maintains high efficiency in light-load. The TPS56X20 supports both ultra-low ESR ceramic capacitors and low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP. The device is optimized for a small 1.0µH to 2.2µH inductor saving PCB area. The TPS56X20 devices are available in the HTSSOP package.