Key facts
- Brand
- STMicroelectronics
- Model
- L5987
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-10
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STMicroelectronics L5987 3A Step-Down Switching Regulator Datasheet
The L5987 is a step-down switching regulator featuring a 3.5A current-limited embedded power MOSFET, allowing it to deliver up to 3A to the load. It operates with an input voltage range of 2.9V to 18V and an adjustable output voltage from 0.6V to the input voltage. The device includes an internal 250kHz oscillator that can be externally adjusted up to 1MHz and supports low dropout operation with a 100% duty cycle.
Read onlineSTMicroelectronics L5987 specifications
| Output current | 3 A |
|---|---|
| Input voltage range | 2.9 V to 18 V |
| Output voltage range | 0.6 V to VIN |
| Switching frequency | 250 kHz to 1 MHz |
| Maximum limiting current | 3.5 A |
| Thermal resistance (VFQFPN) | 60 °C/W |
| Thermal resistance (HSOP) | 40 °C/W |
Source: STMicroelectronics L5987 3A Step-Down Switching Regulator Datasheet
All STMicroelectronics L5987 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the switching frequency of the L5987?
The device has an internal 250 kHz switching frequency that can be externally adjusted up to 1 MHz.
From: STMicroelectronics L5987 3A Step-Down Switching Regulator Datasheet
What is the minimum input voltage for the L5987?
The input voltage can range from 2.9 V to 18 V.
From: STMicroelectronics L5987 3A Step-Down Switching Regulator Datasheet
What is the rated output current of the board?
The demonstration board provides a fully functional step-down switching regulator with an output current of up to 3 A.
What is the default output voltage setting on the board?
The board features an external resistor divider designed for an output voltage of 1.8 V.