TPS61025-Q1 Datasheet | Texas Instruments

Features - 1 Qualified for Automotive Applications - 96% Efficient Synchronous Boost Converter - Output Voltage Remains Regulated When Input Voltage Exceeds Nominal Output Voltage - Device Quiescent Current: 25 µA (Typ) - Input Voltage Range: 0.9 V to 6.5 V - Fixed and Adjustable Output Voltage Options Up to 5.5 V - Power Save Mode for Improved Efficiency at Low Output Power - Low Battery parator - Low EMI-Converter (Integrated Anti-ringing Switch) - Load Disconnect During Shutdown - Over-Temperature Protection - Small 3-mm × 3-mm QFN-10 Package 2 Applications - All One-Cell, Two-Cell and Three-Cell Alkaline, Ni Cd or Ni MH or Single-Cell Li Battery Powered Products - Portable Audio Players - PDAs - Cellular Phones - Personal Medical Products - Camera White LED Flash Light 3 Description The TPS6102x devices provide a power supply solution for products powered by either a one-cell, two-cell, or three-cell alkaline, Ni Cd or Ni MH, or onecell Li-Ion or Li-polymer battery. Output currents can go as high as 200 m A while using a single-cell alkaline, and discharge it down to 0.9 V. It can also be used for generating 5 V at 500 m A from a 3.3-V rail or a Li-Ion battery. The boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. At low load currents, the converter enters the Power Save Mode to maintain a high efficiency over a wide load current range. The Power Save Mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum peak current in the boost switch is limited to a value of 800 m A, 1500 m A or 1800 m A depending on the device version. The TPS6102x devices keep the output voltage regulated even when the input voltage exceeds the nominal output voltage. The output voltage can be programmed by an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is...