A5972D:Up to 1.5 A step down switching regulator for automotive applications

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.

Key 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
  • Protection against feedback disconnection
  • Thermal shutdown
Product Specifications
DescriptionVersionSize
DS5500: Up to 1.5 A step-down switching regulator for automotive applications7.01 MB
Flyers
DescriptionVersionSize
A798x, A597x switching regulators for car power management1.0714 KB
Up to 3 A switching step-down regulators1.0739 KB
Brochures
DescriptionVersionSize
Brochure Power management guide05.20164 MB
Sample & Buy
Part NumberPackagePacking TypeUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
A5972D013TRSO-8Tape And Reel1.4251000NECEAR99MALAYSIA
A5972DSO-8Tube1.4251000NECEAR99MALAYSIA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
A5972D013TRSO-8AutomotiveEcopack1 (*)
A5972DSO-8AutomotiveEcopack1 (*)
Up to 1.5 A step-down switching regulator for automotive applications A5972D
circuit_diagram_13956_thumbnail.png A5972D
Up to 1.5 A step-down switching regulator for automotive applications A5973AD
Up to 1.5 A step-down switching regulator for automotive applications A5973AD
Very low drop voltage regulators with inhibit KFXX