The TPS53015 device is a single, adaptive on-time
D-CAP2 ™ mode synchronous buck controller. The device enables
system designers to complete the suite of various end equipment power bus regulators with cost
effective low external component count and low standby current solution. The main control loop for
the TPS53015 uses the D-CAP2 mode control which provides a very fast transient
response with no external compensation components. The adaptive on-time control supports seamless
transition between PWM mode at higher load condition and Eco-mode™ operation at light load. Eco-mode operation allows
the device to maintain high efficiency during lighter load conditions. The device is also 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 device provides convenient and efficient operation with input
voltages from 4.5 V to 28 V and output voltage from 0.77 V to 7 V.
The TPS53015 is available in the 3-mm × 3-mm 10-pin VSSOP (DGS)
package and is specified for an ambient temperature range of –40°C to 85°C.