TPS62111

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS62110, TPS62111, TPS62112, TPS62113 SLVS585E – JULY 2005 – REVISED JUNE 2015 TPS6211x 17-V, 1.5-A, Synchronous Step-Down Converter 1 Features 1 High-Efficiency Synchronous Step-Down Converter With up to 95% Efficiency 3.1-V to 17-V Operating Input Voltage Range Adjustable Output Voltage Range: 1.2 V to 16 V Fixed Output Voltage Options Available in 3.3 V and 5 V Synchronizable to External Clock: Up to 1.4 MHz Up to 1.5-A Output Current High Efficiency Over a Wide Load-Current Range Due to PFM/PWM Operation Mode 100% Maximum Duty Cycle for Lowest Dropout 20-µA Quiescent Current (Typical) Overtemperature and Overcurrent Protected Available in 16-Pin VQFN Package 2 Applications Point-of-Load Regulation From 12-V Buses Organizers, PDAs, and Handheld PCs Handheld Scanners 3 Description The TPS6211x devices are a family of low-noise synchronous step-down DC-DC converters that are ideally suited for systems powered from a 2- to 4-cell Li-ion battery or from a 12-V or 15-V rail. The TPS6211x devices are synchronous pulse width modulation (PWM) converters with integrated N- and P-channel power MOSFET switches. Synchronous rectification is used to increase efficiency and to reduce external component count. To achieve highest efficiency over a wide load-current range, the converter enters a power-saving, pulse frequency modulation (PFM) mode at light load currents. O...