A5975AD

The A5975AD is a step-down monolithic power switching regulator with a minimum switch current limit of 3.1 A, it is therefore able to deliver up to 2.5 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to 35 V. The high current level is also achieved thanks to a HSOP8 package with exposed frame, that allows to reduce the RTHJ-A down to approximately 40 °C/W. The device uses an internal P-channel DMOS transistor (with a typical RDS(on) of 250 mΩ) as switching element to minimize the size of the external components. An internal oscillator fixes the switching frequency at 500 kHz. Having a minimum input voltage ofonly 4 V, it fits automotive applications requiring device operation even in cold crank conditions. 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)
2.5 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 35 V
Low dropout operation: 100% duty cycle
500 kHz internally fixed frequency
Voltage feed-forward
Zero load current operation
Internal current limiting
Inhibit for zero current consumption
Synchronization
Protection against feedback disconnection
Thermal shutdown

Resources

Technical Documentation

Product Specifications

	Description	Version	Size
	DS7197: Up to 2.5 A step-down switching regulator for automotive applications	1.0	2 MB

HW Model, CAD Libraries & SVD

	Description	Version	Size
	X597X Pspice model		3 MB

Publications and Collaterals

Flyers

	Description	Version	Size
	A798x, A597x switching regulators for car power management	1.0	714 KB
	Up to 3 A switching step-down regulators	1.0	739 KB

Brochures

	Description	Version	Size
	Brochure Power management guide	09.2017	3 MB
	Electric vehicle (EV) ecosystem	1.1	1 MB

SMPS

DC/DC

Input

Volt. Min [V] This option is required. And must be less than or equal to Volt. Max [V]

Volt. Max [V] This option is required. And must be greater than or equal to Volt. Min [V]

Output

Output Power:

Voltage [V] This option is required and must be a number.

Current [A] This option is required and must be a number.

Sample & Buy

Part Number	Package	Packing Type	Marketing Status	Unit Price (US$) *	Quantity	ECCN (US)	Country of Origin	More info	Order from ST	Order from Distributors
A5975ADTR	PowerSO-8	Tape And Reel	Active : Product is in volume production	1.811	1000	EAR99	CHINA	MORE INFO		DISTRIBUTOR AVAILABILITY
A5975AD	PowerSO-8	Tube	Active : Product is in volume production	1.811	1000	EAR99	CHINA	MORE INFO	Buy Direct Add to cart	DISTRIBUTOR AVAILABILITY

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors

Quality & Reliability

Part Number	Marketing Status	Package	Grade	RoHS Compliance Grade	Material Declaration**
A5975ADTR	Active	PowerSO-8	Automotive	Ecopack2
A5975AD	Active	PowerSO-8	Automotive	Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.