| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 22 Pin |
| Case/Package | QFN-22 |
| Number of Outputs | 1 Output |
| Output Voltage | 0.6V ~ 12V |
| Output Current | 25 A |
| Number of Positions | 22 Position |
| Quiescent Current | 2.50 mA |
| Number of Regulated Outputs | 1 Output |
| Switching Frequency | 1.1 MHz |
| Topology | Buck |
| Input Voltage (Max) | 14 V |
| Input Voltage (Min) | 4.5 V |
| Output Voltage (Max) | 12 V |
| Output Voltage (Min) | 600 mV |
| Output Current (Max) | 25 A |
| Operating Temperature (Max) | 150 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 4.5 V |
| Input Voltage | 4.5V ~ 14V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Operating Temperature | -40℃ ~ 125℃ (TJ) |
The TPS56221DQPT is a high-efficiency and high-current synchronous Buck Converter designed to operate from a supply of 4.5 to 14V. The device can produce an output voltage as low as 0.6V at loads up to 25A. Integrated NexFET™ power MOSFETs provide a small footprint and ease of use. The device implements a voltage-mode control with voltage feed-forward compensation that responds instantly to input voltage change. The device offers design flexibility with a variety of user programmable functions, including soft-start, overcurrent protection (OCP) levels and loop compensation. OCP levels are programmed by a single external resistor connected from the ILIM pin to the circuit ground. During the initial power-ON sequence, the device enters a calibration cycle, measures the voltage at the ILIM pin and sets an internal OCP voltage level.
● Incorporates power block technology
● High-side and low-side MOSFET RDS(on) sensing
● Programmable soft-start
● Voltage mode control with feed-forward
● Supports pre-biased output
● Thermal shutdown
● 600mV Reference voltage with 1% accuracy
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