TPS61081 Datasheet | Texas Instruments

Features - 1 2.5-V to 6-V Input Voltage Range - Up to 27-V Output Voltage - 0.5-A Integrated Switch (TPS61080) 1.3-A Integrated Switch (TPS61081) - 12-V/400-m A and 24-V/170-m A From 5-V Input (Typical) - Integrated Power Diode - 1.2-MHz/600-k Hz Selectable Fixed Switching Frequency - Input-to-Output Isolation - Short-Circuit Protection - Programmable Soft Start - Overvoltage Protection - Up to 87% Efficiency - 10-Pin 3-mm × 3-mm QFN Package 2 Applications - 3.3-V to 12-V, 5-V to 12-V, and 24-V Boost Converter - White LED Backlight for Media Form Factor Display - OLED Power Supply - x DSL Applications - TFT-LCD Bias Supply - White LED Flash Light 3 Description The TPS6108x is a 1.2 MHz/600 k Hz fixed-frequency boost regulator designed for high integration, which integrates a power switch, an I/O isolation switch, and a power diode. When a short-circuit condition is detected, the isolation switch opens up to disconnect the output from the input. As a result, the IC protects itself and the input source from any pin, except VIN, from being shorted to ground. The isolation switch also disconnects the output from input during shutdown to prevent any leakage current. Other provisions for protection include 0.5 A/1.3 A peak-topeak overcurrent protection, programmable soft start (SS), over voltage protection (OVP), thermal shutdown, and under voltage lockout (UVLO). The IC operates from input supplies including single Li-ion battery, triple Ni MH, and regulated 5 V, such as USB output. The output can be boosted up to 27 V. TPS6108x can provide the supply voltages of OLED, TFT-LCD bias, 12-V and 24-V power rails. The output of TPS6108x can also be configured as a current source to power up to seven WLEDs in flash light applications. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS61080 TPS61081 VSON (10) 3.00 mm × 3.00 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. 4 5-V To 12-V, 250-m A Step-Up DC-DC...