2.5V-to-5.5V input, 1A output high-efficiency step-down converter

The TPS62A0x family of devices are

synchronous step-down buck DC/DC converters optimized for high efficiency and

compact design size. The devices integrate switches capable of delivering an output

current up to 2A. At medium to heavy loads, the devices operate in pulse width

modulation (PWM) mode with 2.4MHz switching frequency. At light load, the devices

automatically enter power save mode (PSM) to maintain high efficiency over the

entire load current range. In shutdown, the current consumption is minimal as well.

The TPS62A0xA variants of this device family operate in forced PWM across the whole

load current range.

The TPS62A0x devices provide an

adjustable output voltage through an external resistor divider. An internal

soft-start circuit limits the inrush current during start-up. Other features like

overcurrent protection, thermal shutdown protection, and power good (optional) are

built-in. The devices are available in a SOT563 and SOT23-6 package.