Key facts
- Brand
- STMicroelectronics
- Model
- L5972D
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-08-10
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STMicroelectronics L5972D 2A Switch Step Down Regulator Datasheet
The L5972D is a step-down monolithic power switching regulator featuring a minimum switch current limit of 2A. It utilizes an internal P-Channel D-MOS transistor as the switching element to minimize the size of external components. The device includes an internal oscillator that fixes the switching frequency at 250kHz and supports a minimum input voltage of 4.4V, making it suitable for 5V bus applications.
Read onlineSTMicroelectronics L5972D specifications
| Operating input voltage range | 4.4V to 36V |
|---|---|
| Output voltage range | 1.235V to 35V |
| Switching frequency | 250kHz |
| Maximum output current | 2A |
| Maximum thermal resistance junction-ambient | 65 °C/W |
Source: STMicroelectronics L5972D 2A Switch Step Down Regulator Datasheet
All STMicroelectronics L5972D documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
- ST AN1517 handbook 29 p
Questions answered in these manuals
What is the minimum input voltage required for the L5972D regulator?
The device operates with an input voltage as low as 4.4V.
From: STMicroelectronics L5972D 2A Switch Step Down Regulator Datasheet
What is the maximum output current the internal switch can deliver?
The internal switch is rated for a maximum current of 2A.
From: STMicroelectronics L5972D 2A Switch Step Down Regulator Datasheet
What is the typical value for the resistor connected between the FB pin and ground?
The typical value for the resistor connected between this pin and ground is 4.7 k.
From: ST AN1517 handbook
Does the L5972D require a bootstrap capacitor?
No, it does not require a bootstrap capacitor.
From: ST AN1517 handbook
What is the operating input voltage range?
The regulator operates from 4.4 V up to 36 V.
What output voltage can be set?
The output voltage is adjustable between 1.235 V and 35 V.