TPS54626 Datasheet | Texas Instruments

FEATURES - 23 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-k Hz Switching Frequency (f SW) - Cycle By Cycle Over Current Limit - Power Good Output - Auto-Skip Eco-mode™ for High Efficiency at Light Load APPLICATIONS - Wide Range of Applications for Low Voltage System - Digital TV Power Supply - High Definition Blu-ray Disc™ Players - Networking Home Terminal - Digital Set Top Box (STB) DESCRIPTION The TPS54626 is an adaptive on-time D-CAP2™ mode synchronous Buck converter. The TPS54626 enables system designers to plete the suite of various end equipment’s power bus regulators with a cost effective, low ponent 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 ponents. 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℃ to 85℃. Io = 50 m A - 6.5 A S/R = 0.35 A/μs Vo (50 m V/div) Io (2 A/div) U1 TPS54626PWP Time (100 μs/div) L004_SLVSC34 Please be...