| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 250 kHz |
| Number of Pins | 8 Pin |
| Supply Voltage (DC) | 36.0V (max) |
| Operating Voltage | 4.4V ~ 36V |
| Case/Package | HSOP-8 |
| Power Rating | 2.25 W |
| Number of Outputs | 1 Output |
| Output Voltage | 1.235V ~ 35V |
| Output Current | 2.5 A |
| Number of Channels | 1 Channel |
| Number of Positions | 8 Position |
| Quiescent Current | 2.5 mA |
| Switching Frequency | 275 kHz |
| Input Voltage (Max) | 36 V |
| Input Voltage (Min) | 4 V |
| Output Voltage (Max) | 35 V |
| Output Voltage (Min) | 1.235 V |
| Output Current (Max) | 2 A |
| Operating Temperature (Max) | 150 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 4 V |
| Input Voltage | 36 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tube |
| Size-Length | 5 mm |
| Size-Width | 4 mm |
| Size-Height | 1.65 mm |
| Operating Temperature | -40℃ ~ 150℃ |
The L5973D is a step down monolithic power switching regulator with a minimum switch current limit of 2.5A so it is able to deliver more than 2A DC current to the load depending on the application conditions. The output voltage can be set from 1.235V to 35V. The high current level is also achieved thanks to an SO8 package with exposed frame, that allows to reduce the Rth(j-amb) down to approximately 40°C/W. The device uses an internal P-channel D-MOS transistor (with a typical Rdson of 250 mR) as switching element to minimise the size of the external components. An internal oscillator fixes the switching frequency at 250kHz.
● 2.5A internal switch
● 3.3V/(±2%) reference voltage
● Output voltage adjustable from 1.235V to 35V
● Low dropout operation: 100% duty cycle
● 250kHz internally fixed frequency
● Voltage feed-forward
● Zero load current operation
● Internal current limiting
● Inhibit for zero current consumption
● Synchronisation
● Protection against feedback disconnection
● Thermal shutdown
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