ST L7805CV 5V Linear Voltage Regulator
Regular price
Rs.30.00
L7805CV — 5V Linear Voltage Regulator (TO-220)
The L7805CV is a three-terminal linear voltage regulator that provides a fixed 5 V output with up to 1.5 A of load current. It supports input voltages up to 35 V (minimum recommended input around 7 V) and includes integrated thermal shutdown, current limiting, and safe-operating-area protection. These characteristics make it suitable for use in control boards, embedded circuits, instrumentation, and general 5 V power rails.
The device offers predictable electrical behavior with a typical dropout voltage of about 2 V at 1 A and stable ripple rejection for clean DC supply lines. The TO-220 package allows straightforward heat dissipation management when a heatsink is required. Its internal protection mechanisms help maintain stable operation under overload, elevated temperatures, and common electrical stress conditions.
With its simple implementation, consistent output regulation, and compatibility with low- to medium-power systems, the L7805CV is used in a wide range of industrial and commercial electronics. For complete parameters, thermal data, and recommended usage guidelines, refer to the official STMicroelectronics L78 series datasheet linked below.
Key Specs
| Parameter | Value |
|---|---|
| Output voltage | 5.0 V (fixed) |
| Maximum output current | 1.5 A |
| Maximum input voltage | 35 V |
| Minimum input voltage | 7 V |
| Typical dropout voltage | ~2 V at 1 A |
| Operating temperature range | 0 °C to +125 °C |
| Internal protections | Thermal shutdown, short-circuit limiting, SOA protection |
| Package | TO-220 (tab = ground) |
| Pinout (TO-220) | Pin 1: Input — Pin 2: Ground — Pin 3: Output |
| Quiescent current (typ.) | ~4.3 mA |
| Ripple rejection (typ.) | ~62 dB |
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