A5972D
Up to 1.5 A step-down switching regulator for automotive applications
Datasheet - production data
Applications
...
A5972D
Up to 1.5 A step-down switching
regulator for automotive applications
Datasheet - production data
Applications
Dedicated to automotive applications
SO-8
Description
Features
Qualified following the AEC-Q100 requirements (see PPAP for more details)
1.5 A DC output current Operating input voltage from 4 V to 36 V 3.3 V / (± 2%) reference voltage Output voltage adjustable from 1.235 V to VIN Low dropout operation: 100% duty cycle 250 kHz internally fixed frequency Voltage feedforward Zero load current operation Internal current limiting Inhibit for zero current consumption
The A5972D is a step-down monolithic power switching
regulator with a minimum switch current limit of 1.8 A so it is able to deliver up to 1.5 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to VIN.
The device uses an internal P-channel DMOS
transistor (with a typical RDS(on) of 250 mΩ) as a switching element to minimize the size of the external components.
An internal oscillator fixes the switching frequency at 250 kHz. Having a minimum input voltage of 4 V only it fits the automotive applications requiring the device operation even in cold crank conditions. A pulse-by-pulse current limit with the internal frequency modulation offers an effective constant current short-circuit protection.
Protection against feedback disconnection
Thermal shutdown
Figure 1. Application schematic
November 2015
This is infor...