L7805CV 5V 1.5A Positive Voltage Regulator TO-220
Roll over image to zoom in
৳ 20.00৳ 40.00 (-50%)
This is a premium L7805CV linear three-terminal voltage regulator IC housed in a standard TO-220 package [Image Context]. It accepts an unregulated input voltage (typically 7V to 35V) and steps it down to deliver a highly stable, fixed 5V DC output at up to 1.5A of current. It includes internal thermal overload protection and short-circuit current limiting, making it the industry-standard choice for powering microcontrollers like Arduino, sensors, and low-voltage digital circuits.
Product Overview
The L7805CV Three-Terminal Fixed Positive Voltage Regulator IC is an industry-standard linear regulation integrated circuit designed to provide a rock-solid, noise-free local on-board voltage regulation step-down platform [Image Context]. Housed in a universal TO-220 power package with an integrated metal backing tab, this robust chip effortlessly drops variable, fluctuating higher-range direct current (DC) inputs down into a clean, unvarying 5V DC output supply [Image Context]. It serves as a foundational component for logic circuits, development microcontrollers, sensor nodes, and general digital instrumentation modules.
Design & Safety Fail-Safes
Built to survive common electrical mishaps, the L7805CV features three layers of internal solid-state defense:
- Internal Thermal Overload Protection: Features a built-in thermal sensor circuit that monitors core chip temperature. If local heat dissipation spikes beyond safe thresholds due to over-driving, the IC automatically throttles back or shuts down output current until it cools to a safe operational envelope.
- Short-Circuit Current Limiting: Includes internal current-limiting architecture that caps peak output flow if the downstream load shorts out, protecting both the regulator itself and the upstream power supply from burning out.
- Safe-Area Compensation: Features internal transistor-protection loops that adjust output current capacity depending on the scale of the input-to-output voltage differential, preventing electrical damage to the main power pass-transistor inside the chip.
Technical Specifications & Dimensional Envelope
Absolute maximum parameters and dimensional specifications tracked at room temperature ($T_a = 25^\circ\text{C}$):
| Feature / Metric Parameter | Verified Specification Value |
|---|---|
| Output Voltage Profile | Fixed +5.0 Volts DC (±4% tolerance limit) |
| Input Voltage Range Limits | Minimum 7.0V DC (dropout floor) up to 35.0V DC Maximum |
| Maximum Output Current ($I_o$) | Up to 1.5 Amperes (with appropriate heat sinking) |
| Quiescent Current Consumption | Low ~4.2 to 8.0 mA idling draw |
| Total Enclosure Height | 29.00 mm / 1.14 inches [Image Context] |
| Plastic Body Height | 9.00 mm / 0.35 inches [Image Context] |
| Metal Mounting Tab Width | 10.00 mm / 0.39 inches [Image Context] |
| Terminal Pin Length | 13.50 mm / 0.53 inches [Image Context] |
Standard Pinout Layout Mapping
When looking directly at the branded face with text markings (pins pointing downwards) [Image Context]:
- Pin 1 (Left Leg) – INPUT: Receives the higher, unregulated DC input source voltage (e.g., a 9V battery or a 12V power brick adapter).
- Pin 2 (Center Leg) – GROUND (GND): Connects to the primary system ground/return path. This pin is also internally bonded to the exposed metal backing plate hole.
- Pin 3 (Right Leg) – OUTPUT: Delivers the stabilized, regulated +5V DC power line directly to your application circuits.
Common System Deployments
- Microcontroller Infrastructure: Acting as the primary power step-down stage on Arduino Uno, Mega, and custom ATmega328P prototyping boards to convert raw 9V/12V barrel inputs into logic-safe 5V rails.
- Sensor & Logic Array Feeds: Stabilizing operational power blocks for sensitive analog logic gates, operational amplifiers, and arrays of 5V sensors.
- DIY Power Supply Stations: Building benchtop test boxes or breadboard power rails running off standard 12V batteries or wall warts.
Reviews
There are no reviews yet.