A5973ADTR
ActiveDC/DC SWITCHING REGULATOR, ADJUSTABLE, BUCK (STEP DOWN), SINGLE OUTPUT, 1.235 V TO 36 V, 1.5 A, 500… MORE
Deep-Dive with AI
Search across all available documentation for this part.
A5973ADTR
ActiveDC/DC SWITCHING REGULATOR, ADJUSTABLE, BUCK (STEP DOWN), SINGLE OUTPUT, 1.235 V TO 36 V, 1.5 A, 500… MORE
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | A5973ADTR |
|---|---|
| Current - Output | 1.5 A |
| Frequency - Switching | 500 kHz |
| Function | Step-Down |
| Grade | Automotive |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | Exposed Pad, 8-SOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Qualification | AEC-Q100 |
| Supplier Device Package | 8-HSOP |
| Synchronous Rectifier | False |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 36 V |
| Voltage - Input (Min) [Min] | 4 V |
| Voltage - Output (Max) [Max] | 36 V |
| Voltage - Output (Min/Fixed) | 1.235 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 15439 | $ 4.02 | |
Description
General part information
A5973AD Series
The A5973AD 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 high current level is also achieved thanks to an HSOP8 package with an 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 a 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 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.