A4450
Description
The A4450 is a power management IC that can implement either a buck or buck-boost regulator to efficiently convert automotive battery voltages into a tightly regulated voltage. It includes control, diagnostics, and protection functions.
Key Features
- Automotive AEC-Q100 qualified
- Wide operating range of 3 to 36 VIN, 40 VIN maximum, covers automotive stop/start, cold crank, double battery, and load dump
- Regulated output can operate up to 2 A DC
- Adjustable PWM switching frequency: 250 kHz to 2.2 MHz
- PWM frequency can be synchronized to external clock: 250 kHz to 2.4 MHz
- Frequency dithering helps reduce EMI/EMC
- Undervoltage protection
- Pin-to-pin and pin-to-ground tolerant at every pin
- Thermal shutdown protection
- Operating junction temperature range -40°C to 150°C PACKAGES: 20-pin 4 × 4 mm QFN (ES) with wettable flank Not to scale
