Allegro MicroSystems A4407
2.2 MHz Constant On-Time Buck Regulator
| Part No. | A4407 |
|---|---|
| Datasheet | A4407 Download |
| Manufacturer |  Allegro MicroSystems |
| Description | 2.2 MHz Constant On-Time Buck Regulator |
| Buy | Stock & Price |
FEATURES AND BENEFITS
● AEC-Q100 Grade 0 qualified● Internal buck pre-regulator followed by LDO outputs
● 5.5 to 36 V VIN operating range (50 V maximum); for start/stop, cold crank, and load dump requirements
● Constant on-time (COT) buck pre-regulator
● Valley current sensing achieves shortest buck on-times
● 2.2 MHz (VIN - adjusted) switching frequency
● 5 V internal low-dropout tracking linear regulator with foldback short circuit and short-to-battery protections
● 5 V internal low-dropout linear regulator with foldback short circuit protection
● 3.3 V external FET controller/driver with programmable current limit and foldback short circuit protection
● 1.2 V/1.5 V/1.8 V external FET controller/driver with programmable current limit and foldback protection
● Power-on reset (NPOR) with adjustable rising delay
● Logic enable input (ENB) for micropr
