The A5973D is a step-down monolithic power switching regulator with a minimum switch current limit of 2.25 A so it is able to deliver up to 2 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 an HSOP8 package with exposed frame, that allows to reduce the Rth(JA)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 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.
|DS5501: Up to 2 A step-down switching regulator for automotive applications||9.0||1 MB|
|X597X Pspice model||3 MB|
|A798x, A597x switching regulators for car power management||1.0||714 KB|
|Up to 3 A switching step-down regulators||1.0||739 KB|
|Brochure Power management guide||09.2017||3 MB|
|Electric vehicle (EV) ecosystem||1.1||1 MB|
|Part Number||Package||Packing Type||Marketing Status||Unit Price (US$) *||Quantity||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|A5973D||PowerSO-8||Tube||Active : Product is in volume production||1.463||1000||EAR99||CHINA||MORE INFO||Buy Direct Add to cart||DISTRIBUTOR AVAILABILITY|
|A5973D013TR||PowerSO-8||Tape And Reel||Active : Product is in volume production||1.463||1000||EAR99||CHINA||MORE INFO||Get Sample Add to cart||DISTRIBUTOR AVAILABILITY|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
(**) 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.