The L5973D is a step down monolithic power switching regulator with a minimum switch current limit of 2.5 A so it is able to deliver more than 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 L5973D is a monolithic step‑down switching regulator featuring a 2.5 A internal switch, input voltage range of 4 V to 36 V, and an adjustable output voltage from 1.235 V to 35 V. It operates at a fixed 250 kHz switching frequency, includes internal current limiting, thermal shutdown, and synchronization functions, and is supplied in an HSOP8 package with an exposed pad for low thermal resistance.
The datasheet provides pin descriptions, electrical characteristics, typical performance curves, and application circuit ideas. It also lists absolute maximum ratings, thermal data, and ordering information for the L5973D device.
| Operating input voltage range | 4 V to 36 V |
|---|---|
| Adjustable output voltage range | 1.235 V to 35 V |
| Maximum output current (switch current) | 2.5 A |
| Switching frequency | 250 kHz |
| Reference voltage | 3.3 V |
| Package type | HSOP8 exposed pad |
The absolute maximum input voltage is 40 V.
The device operates at a fixed switching frequency of 250 kHz.
The internal reference voltage is 3.3 V.