TPS54627 Datasheet | Texas Instruments

Features - 1 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 FETs 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 - Prebiased Soft Start - 650-k Hz Switching Frequency - Cycle-by-Cycle Overcurrent Limit 2 Applications - Wide Range of Applications for Low-Voltage System - Digital-TV Power Supply - High-Definition Blu-ray Disc™ Players - Networking Home Terminals - Digital Set-Top Boxes (STB) 3 Description The TPS54627 device is an adaptive on-time DCAP2 mode synchronous-buck converter. The TPS54627 enables system designers to plete the suite of various end-equipment power-bus regulators with a cost-effective, low-ponent count, lowstandby current solution. The main control loop for the TPS54627 uses the DCAP2 mode control that provides a fast transient response with no external pensation ponents. The TPS54627 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 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft-start time. The TPS54627 is available in the 8-pin SO Power PAD package, and designed to operate from - 40°C to 85°C. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) SO Power PAD (8) 4.89 mm × 3.90 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Simplified Schematic Load Transient Response Vout(50m V/div) Iout(2A/div) Copyright © 2016, Texas Instruments Incorporated 100us/div An IMPORTANT NOTICE at the end of this data...