ARG81403 Description
The ARG81403 is power management IC that uses a 2.2 MHz synchronous buck pre-regulator to efficiently convert automotive battery voltages into a tightly regulated intermediate voltage, plete with control, diagnostics, and protections. The output of the pre-regulator supplies two 5 V / 100 mA tracking/ protected LDOs, a 3.3 V / 150 mA LDO, a 5 V / 300 mA LDO, and an adjustable output synchronous buck regulator (1.275...
ARG81403 Key Features
- Automotive AEC-Q100 qualified
- A2-SIL™ product-device features for safety-critical systems
- 6 to 36 VIN operating range, 40 VIN maximum
- 2.2 MHz synchronous buck pre-regulator (VREG)
- Adjustable synchronous buck regulator
- 5 V (V5P1 and V5P2) internal tracking LDO regulator
- Power-on reset (NPOR) with fixed delay of 15 ms
- Selectable watchdog (single-ended or window timer)
- Active-low watchdog timer enable input (WDENn)
- Dual band gaps for increased reliability: BGVREF, BGFAULT