TPS62231DRYT .

The TPS62231DRYT is a synchronous Step-down DC-to-DC Converter supports up to 500mA output current and allows the use of tiny chip inductors and capacitors. With a wide input voltage range of 2.05 to 6V, the device supports applications powered by li-ion batteries with extended voltage range. The minimum input voltage of 2.05V allows as well the operation from Li-primary or two alkaline batteries. Different fixed output voltage versions are available from 1 to 3.3V. The TPS6223x series features switch frequency up to 3.8MHz. At medium to heavy loads, the converter operates in pulse width modulation (PWM) mode and automatically enters power-save mode operation at light load currents to maintain high efficiency over the entire load current range. Because of its excellent power supply rejection ratio (PSRR) and AC load regulation performance, the device is also suitable to replace linear regulators to obtain better power conversion efficiency.

• Up to 94% efficiency
• Excellent AC and transient load regulation
• Optimized power-save mode for low output ripple voltage
• Forced PWM mode operation
• Soft-start with typical 100µs start-up time
• 100% Duty cycle for lowest dropout
• Green product and no Sb/Br

Applikasjoner

Audio, Portable Devices, Wireless, Consumer Electronics, Communications & Networking, Power Management