The TPS629210-Q1 is a high efficiency, small and flexible synchronous step-down DC/DC converter that is easy to use. A selectable switching frequency of 2.5-MHz or 1.0-MHz allows the use of small inductors and provides fast transient response. The device supports high output voltage accuracy of -1.5% and +1.1% across temperature range (-40°C to 150°C) using VSET feature. The wide input voltage of 3-V to 17-V supports a variety of nominal inputs, like 12-V supply rails, single-cell or multi-cell Li-Ion, and 5-V or 3.3-V rails.

The TPS629210-Q1 provides a MODE/S-CONF input to set the internal/external feedback, switching frequency, output voltage discharge and auto PFM/PWM or forced PWM operation. To maintain high efficiency at light load, auto PFM/PWM should be selected. Additionally, to provide high efficiency at very small load, the device has a low typical quiescent current of 4-μA. If enabled AEE mode, the device provides automatic efficiency enhancement across VIN, VOUT and load current. The device is available in small 8-pin SOT583 package.