DCDC Regulators
2A, Low-Voltage Synchronous Buck Regulator with Adjustable Frequency and Power-OK
A8650
The A8650 provides efficient and flexible power conversion for low-voltage applications, with adjustable switching frequency, external synchronization, and a power-OK output. Features integrated MOSFETs and comprehensive protection.
Product Details
Product Details
Top Features
- Automotive AEC-Q100 qualified
- Operating voltage range: 2.5 to 5.5 V
- UVLO stop threshold: 2.25 V (max)
- Adjustable switching frequency (fOSC): 0.25 to 2.45 MHz
- Synchronizes to external clock: 1.2× to 1.5× fOSC (typ)
- Internal 70 mΩ high-side switching MOSFET
- Internal 55 mΩ low-side switching MOSFET
- Capable of at least 2.0 A steady-state output current
- Sleep mode supply current less than 3 μA
- Adjustable output voltage as low as 0.8 V with ±1% accuracy from –40°C to 125°C
- Soft start time externally set via the SS pin
- Pre-biased startup capable
- Externally adjustable compensation
- Stable with ceramic output capacitors
- Enable input, and Power OK (POK) output
- Cycle-by-cycle current limiting (OCP)
- Hiccup mode short circuit protection (HIC)
- Overvoltage protection (OVP)
- Overtemperature protection (TSD)
- Open circuit and adjacent pin short circuit tolerant
- Short to ground tolerant at every pin
