SLUSDW9A June 2020 – June 2020 TPS51215A
TPS51215A is a synchronous step-down controller which can operate from 3 V to 28 V input voltage (VIN). The proprietary D-CAP2TM mode enables low external component count, ease of design, optimization of the power rail for cost, size and efficiency. TPS51215A is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors.
The TPS51215A needs an external 5V supply to power the internal control circuitry. The undervoltage lockout (UVLO) circuit monitors the V5IN pin voltage to protect the internal circuitry from low input voltages. TPS51215A operates in fixed 600kHz switching frequency.
The TPS51215A supports 2-bits VID and Low Power Mode(LPM) to dynamically change the Vout voltage to satisfy the Intel IMVP8/9 applications — VCCIN_AUX, VCCIO_0, VCCIO_1_2 applications.