The TPS54626 is an adaptive on-time D-CAP2™ mode synchronous Buck converter. The TPS54626 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 TPS54626 uses the D-CAP2™ mode control which provides a very fast transient response with no external components. The adoptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency operation at light load for high efficiency. The TPS54626 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as SP-CAP and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input power supply voltage. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft start time and a power good function. The TPS54626 is available in the 14 pin HTSSOP package, designed to operate from –40°C to 85deg;C.
● D-CAP2 Mode Enables Fast Transient Response
● Low Output Ripple and Allows Ceramic Output Capacitor
● Wide Vin Input Voltage Range: 4.5 V to 18 V
● Output Voltage Range: 0.76 V to 5.5 V
● Highly Efficient Integrated FET’s Optimized for
●Lower Duty Cycle Applications –36 mΩ (High Side)
●and 28 mΩ (Low Side)
● High Efficiency, less than 10 µA at shutdown
● High Initial Bandgap Reference Accuracy
● Adjustable Soft Start
● Pre-Biased Soft Start
● 650-kHz Switching Frequency (fSW)
● Cycle By Cycle Over Current Limit
● Power Good Output
● Auto-Skip Eco-mode for High Efficiency at Light Load
