TPS61291 Description
The TPS61291 is a boost converter with pin selectable output voltages and an integrated bypass mode. In bypass operation, the device provides a direct path from the input to the system and allows a low power micro controller (MCU) such as the MSP430 to operate directly from a single 3V Li-MnO2 battery or dual alkaline battery cells. In bypass mode the integrated feedback divider network for boost mode operation is...
TPS61291 Key Features
- 1 Input Voltage Range 0.9V to 5V
- Startup Voltage 1.5V at 20mA Load
- Pin Selectable Output Voltages: 3.3V, 3V, 2.5V
- 15nA typical Quiescent Current in Bypass Mode
- 5.7μA typical Quiescent Current in Boost Mode
- Bypass Switch from VIN to VOUT
- IOUT > 200mA at 3.3V VOUT, VIN = 1.8V
- Internal Feedback Divider Disconnect (Bypass
- Controlled Bypass Transition Prevents Reverse
- Power-Save Mode at Light Loads