A8582
A8582 is 2.0A Asynchronous Buck Regulator manufactured by Allegro MicroSystems.
Wide Input Voltage, 2.4 MHz , 2.0 A Asynchronous Buck Regulator
Features
AND BENEFITS
- Automotive AEC-Q100 qualified
- Wide operating voltage range: 4.7 to 36 V
- UVLO stop threshold is at 3.8 V (typ)
- Supports 40 V input for surge and load dump testing
- Capable of at least 2.0 A steady-state output current
- Adjustable output voltage as low as 0.8 V
- Internal 70 mΩ high-side switching MOSFET
- Adjustable switching frequency, f SW: 0.25 to 2.4 MHz
- Synchronization to external clock: 1.2 × f SW to 1.5 × f SW
- Sleep mode supply current less than 3 μA
- Soft start time externally set via the SS pin
- Very low no-load current, typically 3.5 m A
- Pre-bias startup patible
- Power OK (POK) output
- Pulse-by-pulse current limiting (OCP)
- Hiccup mode short-circuit protection (HIC)
- Overtemperature protection (TSD)
- Overvoltage protection (OVP)
- Missing asynchronous diode (D1) protection
- Open-circuit and adjacent pin short-circuit tolerant
- Short-to-ground tolerant at every pin
- Externally adjustable pensation
- Stable with ceramic output capacitors
PACKAGE: 16-pin TSSOP (suffix LP)
Not to scale
DESCRIPTION
The A8582 is an adjustable frequency, high output current, PWM regulator that integrates a low resistance, high-side, N-channel MOSFET. The A8582 incorporates current-mode control to provide simple pensation, excellent loop stability, and fast transient response. The A8582 utilizes external pensation to acmodate a wide range of power ponents to optimize transient response without sacrificing...
