TPS65262-2

TPS65262-2 SLVSD87C – DECEMBER 2015 – REVISED MAY 2023 TPS65262-2 4.5-V to 18-V Input Voltage, 3-A/1-A/1-A Output Current, Triple Synchronous Step-Down Converter with Dual, Adjustable, 350-mA/150-mA LDOs 1 Features Operating input voltage range: 4.5 to 18 V Feedback reference voltage: 0.6 V ±1% Maximum continuous output current: 3 A/1 A/1 A Fixed 600-kHz switching frequency Integrated dual LDOs with input voltage range: 1.3 to 18 V and continuous output current: 350 mA/150 mA Programmable soft-start time for Buck1 Fixed 1-ms soft-start time for Buck2 and Buck3 Internal loop compensation for Buck2 and Buck3 Dedicated enable pins for each Buck Support pulse skipping mode (PSM) and forced continuous current mode (FCCM) Output voltage power-good indicator Thermal overloading protection 32-pin VQFN (RHB) 5-mm × 5-mm package Overvoltage protection, overcurrent and shortcircuit protection, and overtemperature protection 2 Applications DTV Set-top boxes Home gateway and access point networks Wireless routers Surveillance POS machine Vin VINx LX1 PGOOD MODE FB1 ENx SS1 LX2 TPS65262-2 LDO1 LDO2 GND GND LVIN1 LOUT1 FB2 LFB1 LEN1 LVIN2 LX3 LOUT2 LFB2 LEN2 FB3 AGND PGND Vout1 Vout2 Vout3 Application Schematic 3 Description The TPS65262-2 is a monolithic, triple, synchronous step-down (buck) converter with 3-A/1-A/1-A output current. A wide 4.5-V to 18-V input supply voltage range encompasses the most intermediate bus vol...