TPS2505B1 Datasheet | Texas Instruments

ures - 1 Integrated Synchronous Boost Converter, LDO, and Dual USB Current-Limited Switches - 1.8-V to 5.25-V Input Voltage (2.2-V Minimum Start-Up Voltage) - Adjustable Independent USB Current Limit - 100 m A to 1100 m A - Auxiliary 5.1-V Output - 3.3-V Linear Regulator Output - Inrush Current < 100 m A - Minimal External ponents Required - Deglitched Independent Fault Reporting - Small 5-mm × 5-mm QFN-20 Package - Industrial Temperature Range 2 Applications - Portable Applications Using Single Li+ Cell - Bus Powered USB Hosts - USB Hosts Without Native 5-V Supplies - puter Peripherals 3 Description The TPS2505 device provides an integrated solution to meet USB 5-V power requirements from a 1.8-V to 5.25-V input supply. The Features include a 5.1-V, 1100-m A boost converter, a 200-m A, 3.3-V LDO linear regulator and dual USB 2.0 pliant power outputs with independent output switch enable, current limit, and overcurrent fault reporting. The 1.8-V to 5.25-V input can be supplied by sources including DC-DC regulated supplies (for example, 3.3 V), or batteries such as single cell Li+, two-cell or three-cell Ni Cd, Ni MH or alkaline. The output trip current for the dual USB switches can be programmed through external resistors from as low as 100 m A to as high as 1100 m A. An auxiliary 5.1-V output is provided, where the total current supplied by the USB outputs and the auxiliary by cannot exceed 1100 m A. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS2505 VQFN (20) 5.00 mm × 5.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical...