TPS61088RHLR.pdf

The TPS6302x devices provide a power solution for products powered by two- or three-cell alkaline, NiCd, or NiMH, or single-cell Li-Ion or Li-polymer batteries, supercapacitors, or other power rails. Supports up to 3A output current. When using a battery, it can be discharged below 2V. The buck-boost converter is based on a fixed-frequency, pulse-width-modulated (PWM) controller that uses synchronous rectification for maximum efficiency. At low load currents, the converter enters a power save mode to maintain high efficiency over a wide load current range. Disabling power save mode forces the converter to run at a fixed switching frequency. The maximum average current for the switches is 4A (typ). The output voltage can be programmed by an external resistor divider, or fixed on-chip internally. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery.

The TPS6302x devices operate over the temperature range of –40°C to 85°C in a free-air environment. The device is packaged in a 3mm × 4mm (DSJ) 14-pin VSON package.

characteristic

• Input Voltage Range: 1.8V to 5.5V

• Adjustable Output Voltage: 1.2V to 5.5V

• 2A Output Current at VIN > 2.5V, VOUT = 3.3V

• High Efficiency Over Full Load Range

• Quiescent Operating Current : 25µA

• Power Saving Mode with Mode Selection

• Average Current Mode Buck/Boost Architecture

• Automatic Transition Between Modes

• 2.4MHz Fixed Frequency Operation

• Synchronizable

• Power Good Status Output

• Safe, Reliable Operation Features

• Overheating and Overvoltage Protection Protection

• Load disconnection during shutdown

• Create custom design with:

• TPS63020 using WEBENCH Power Designer

• TPS63021 using WEBENCH Power Designer