This is a voltage mode PWM controller with a supply voltage range from 1.8V to 18V and an input voltage range from 4.5V to 18V. It features an adjustable output voltage down to 0.6V with ±0.8% accuracy over line voltage and temperature (0°C~125°C). It also has fixed frequency voltage mode control, 0% to 100% duty cycle, external input voltage reference, soft-start and inhibit, bootstrap anti-discharging system, high current embedded drivers, predictive anti-cross conduction control, programmable high-side and low-side RDS(on) sense over-current-protection, selectable switching frequency 250KHz/500KHz, power good and synch available with L6725A, pre-bias start up capability, over voltage protection, thermal shut-down, and is suitable for low voltage distributed DC-DC and graphic card applications.
The L6725 and L6725A are flexible, high-performance PWM buck controllers designed for low voltage distributed DC-DC applications. They feature an input voltage range from 1.8V to 18V and a supply voltage range from 4.5V to 18V. The devices offer adjustable output voltage down to 0.6V with ±0.8% accuracy over line voltage and temperature.
| Input voltage range | 1.8V to 18V |
|---|---|
| Supply voltage range | 4.5V to 18V |
| Output voltage range | down to 0.6V |
| Output voltage accuracy | ±0.8% |
| Switching frequency | 250KHz/ 500KHz |
| Package | SO16N |
| Minimum on-time | shorter than 100ns |
The switching frequency can be set at 250KHz or 500KHz by setting the proper voltage at the EAREF pin.
Yes, the device allows using an external reference (0V to 2.5V) for the regulation in addition to the internal reference.
The output current can be in excess of 20A.