It is a monolithic Multifunction Voltage Regulator; it contains 3 regulators, (REG1, REG2, REG3) each one with an enable input and a feedback input, to allow the voltage setting via external resistive divider.
| Part number | L4909 |
|---|---|
| Manufacturer | STMicroelectronics |
| File Size | 61.54 KB |
| Description | EXTERNALLY ADJUSTABLE MULTIFUNCTION REGULATOR |
| Datasheet |
 L4909 Datasheet
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| Part Number | Description | Manufacturer |
|---|---|---|
| L4937 | Dual Low Drop Fixed Output Linear Regulator | ETC |
| L493EC | T-1 3/4 (5mm) CYLINDRICAL LED LAMPS | ETC |
| L493GC | T-1 3/4 (5mm) CYLINDRICAL LED LAMPS | ETC |
| L493GT | T-1 3/4 (5mm) CYLINDRICAL LED LAMPS | ETC |
| L493IT | T-1 3/4 (5mm) CYLINDRICAL LED LAMPS | ETC |
| Part Number | Description |
|---|---|
| L4901A | DUAL 5V REGULATOR WITH RESET |
| L4902A | DUAL 5V REGULATOR WITH RESET AND DISABLE |
| L4903 | DUAL 5V REGULATOR WITH RESET AND DISABLE FUNCTIONS |
| L4904A | DUAL 5V REGULATOR WITH RESET |
| L4915 | ADJUSTABLE VOLTAGE REGULATOR PLUS FILTER |
The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.
