1 Features
• 2.3-μA operating quiescent current
• Up to 4-MHz switching frequency
• 1% output voltage accuracy
• DVS output from
– 0.4 V to 1.9875 V (12.5-mV steps)
• I2C user interface to adjust
– Output voltage presets
– Ramp speed
• VSEL pin to toggle output voltage during operation
• Power-good indication
• Supports < 6-mm² design size
• Supports < 0.6-mm design height
• Tiny, 8-pin, 0.35-mm pitch WCSP package
• Optimized pinout to support 0201 components

2 Applications
• Wearable electronics
• Portable electronics
• Mobile phones
• Medical sensor patches and patient monitors

3 Description
The TPS6286x devices are high-frequency,
synchronous step-down converters with I2C- and
VSEL-Interface. The devices provide an efficient,
flexible, and high-power density point-of-load DC/DC
design. At medium to heavy loads, the converter
operates in PWM mode and automatically enters
Power Save Mode operation at light load to maintain
high efficiency over the entire load current range. The
device can also be forced in PWM mode operation
for the smallest output voltage ripple. Together, with
its DCS-Control architecture, excellent load transient
performance and tight output voltage accuracy are
achieved. With the I2C interface and a dedicated
VSEL pin, the output voltage is quickly adjusted to
adapt the power consumption of the load to the everchanging
performance needs of the application. The
device family is available with two VSEL pins and
four factory preset voltages to allow usage without I2C
interface.