STMicroelectronics L5981
The L5981 is a step-down switching regulator with a 1.5 A (min.) current limited embedded Power MOSFET, so it is able to deliver in excess of 1 A DC current to the load depending on the 250 kHz switching frequency, programmable up to 1 MHz application condition. The input voltage can range from 2.9 V to 18 V, Internal soft-start and inhibit Low dropout operation: 100% duty cycle Voltage feedforward Zero load current operation Overcurrent and thermal protection while the output voltage can be set starting from 0.6 V to VIN.| Part No. | L5981 |
|---|---|
| Datasheet | L5981 Download |
| Manufacturer |  STMicroelectronics |
| Description | 1A step-down switching regulator |
| Buy | Stock & Price |
FEATURES
DESCRIPTION
● 1 A DC output current● 2.9 V to 18 V input voltage
● Output voltage adjustable from 0.6 V The L5981 is a step-down switching regulator with a 1.5 A (min.) current limited embedded Power MOSFET, so it is able to deliver in excess of 1 A DC current to the load depending on the
● 250 kHz switching frequency, programmable up to 1 MHz application condition. The input voltage can range from 2.9 V to 18 V,
● Internal soft-start and inhibit
● Low dropout operation: 100% duty cycle
● Voltage feedforward
● Zero load current operation
● Overcurrent and thermal protection while the output voltage can be set starting from 0.6 V to VIN. Having a minimum input voltage of 2.9 V, the device is suitable also for a 3.3 V bus. Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally
● VFQFPN8 3 mm x 3 mm package adjusted up to 1 MHz.
APPLICATIONS
● Consumer: STB, DVD, DVD recorder, car audio, LCD TV and monitors The VFQFPN8 package with an exposed pad allows reducing the RthJA down to approximately 60 °C/W.
