TPS560200DBVR Power Path Management IC Switching Voltage Regulators 4.5-17V Input 500mA Sync Buck Cnvtr

1 Features

• Integrated Monolithic 0.95-Ω High-Side and 0.33- Ω Low-Side MOSFETs

• 500-mA Continuous Output Current

• Output Voltage Range: 0.8 V to 6.5 V

• 0.8-V Voltage Reference With ±1.3% Accuracy Over Temperature

• Auto-Skip Advanced Eco-ModeTM for High Efficiency at Light Loads

• D-CAP2TM Mode Enables Fast Transient Responses

• No External Compensation Needed

• 600-kHz Switching Frequency

• 2-ms Internal Soft-Start

• Safe Start-Up into Prebiased VOUT

• Thermal Shutdown

• –40°C to 125°C Operating Junction Temperature Range

• Available in 5-Pin SOT-23 Package

2 Applications

• Set Top Boxes

• Modems

• DTBs

• ASDLs

3 Description

The TPS560200 is an 17-V, 500-mA, low-Iq, adaptive on-time D-CAP2 mode synchronous monolithic buck converter with integrated MOSFETs in easy-to-use 5- pin SOT-23 package.

The TPS560200 lets system designers complete the suite of various end-equipment power bus regulators with a cost-effective, low component count and low standby current solution. The main control loop for the device uses the D-CAP2 mode control that provides a fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and advanced Eco- Mode operation at light loads.

The TPS560200 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 17-V VIN input. The output voltage can be programmed between 0.8 V and 6.5 V. The device also features a fixed 2-ms soft-start time. The device is available in the 5-pin SOT-23 package.