TPS62112 Datasheet | Texas Instruments

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 ponent 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. Operating frequency is typically 1 MHz, allowing the use of small inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 0.8 MHz to 1.4 MHz. For lownoise operation, the converter can be operated in PWM-only mode. In shutdown mode, the current consumption is reduced to less than 2 µA. The TPS6211x family of devices are available in the 16pin (RSA) VQFN package, and operate over a freeair temperature range of - 40°C to 85°C. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS62110 TPS62111 TPS62112 VQFN (16) 4.00 mm × 4.00 mm TPS62113 (1) For all available packages, see the orderable addendum at the end of the data sheet. 4 Typical Application...