8682l Datasheet May 2026

8682L Datasheet — What It Is and Why It Matters

If you’ve ever browsed components for RF front-ends, satellite comms, broadcast gear, or specialized timing equipment, you might’ve bumped into a part labeled “8682L.” Whether it’s a legacy PLL, a VCO, an RF mixer, or a precision oscillator (manufacturers sometimes reuse similar numbers), the datasheet is the single source that tells you whether that part will survive in your design. This post walks through how to read an 8682L datasheet, what key specs to watch, common application contexts, and practical design tips so you can decide fast whether to prototype with it.

Core Specifications

  • Topology: Synchronous Rectified Step-Down (Buck) Converter.
  • Input Voltage Range ($V_IN$): Typically 4.5V to 18V (covering standard 5V and 12V rails).
  • Output Current: Capable of delivering continuous load currents up to 6A (depending on thermal management and inductor selection).
  • Operating Frequency: Adjustable or fixed frequency, often operating in the range of 300kHz to 1MHz, allowing designers to trade off efficiency for component size.
  • Package: Commonly found in SOP-8 (Exposed Pad) or WDFN packages, optimizing thermal dissipation through the PCB.

Part 2: Key Electrical Specifications (Typical Values)

While an official datasheet from a specific manufacturer is definitive, the following table represents the most commonly cited specifications for devices matching the 8682l designation in repair and design communities.

| Parameter | Symbol | Typical Value | Unit | Condition | | :--- | :--- | :--- | :--- | :--- | | Output Voltage | Vout | 3.3, 5.0, or 8.0 | V | Fixed (check marking) | | Input Voltage Range | Vin | 4.5 to 18 | V | Max 20V | | Output Current | Iout | 150 to 300 | mA | Depending on package | | Dropout Voltage | Vdo | 0.3 to 0.7 | V | @ Iout=100mA | | Quiescent Current | Iq | 2 to 5 | mA | Typical | | Line Regulation | | 0.1 | %/V | | | Load Regulation | | 0.5 | % | | | Operating Temp | Top | -40 to +85 | °C | Industrial range | | Storage Temp | Tstg | -55 to +150 | °C | | 8682l Datasheet

Explanation of Key Specs:

  • Low Dropout: The 0.3V typical dropout means the regulator can maintain a stable output even when the input voltage is very close to the output. Example: 3.3V output with only 3.6V input.
  • Current Limit: At 150-300mA, this is a low-power regulator, ideal for microcontrollers, sensors, or RF modules, not for motors or high-power LEDs.
  • Quiescent Current: 2-5mA is moderate. For ultra-low-power battery designs (IoT sensors), this is high; modern LDOs offer <1µA.

Part 4: Typical Application Circuit

The 8682l is simplicity itself. A basic fixed voltage regulator circuit requires only two external capacitors: 8682L Datasheet — What It Is and Why

        +Vin (5V to 12V)                     +Vout (3.3V or 5V)
             |                                     |
            ---                                   ---
           | C1 |                                 | C2 |
           |1µF |                                 |10µF|
            ---                                   ---
             |                                     |
             +-----+--------+                      +----- Regulated Output
                   |        |                            |
                   |      +---+                          |
                   +------|IN |------+                    |
                   |      |8682|      |                    |
                   +------|GND|      +--------------------+
                   |      |OUT|------+----+     
                   |      +---+      |    |
                   |                  ---  |
                  GND                 GND GND

Component Values:

  • C1 (Input capacitor): 0.33µF to 1µF ceramic. Recommended for stability if the power supply is more than 10cm away.
  • C2 (Output capacitor): 1µF to 10µF. Low ESR (Equivalent Series Resistance) types like ceramic X5R or X7R work well. Avoid old tantalum if high ripple is expected.

Introduction: What is the 8682l?

In the vast ecosystem of electronic components, part numbers often hold the key to a device’s capabilities. The 8682l is one such identifier that frequently appears in service manuals, repair forums, and component sourcing databases. However, a common challenge among engineers and technicians is locating a complete, understandable datasheet. Misinterpretation of the "8682l Datasheet" can lead to incorrect substitutions, design flaws, or even system failures. Topology: Synchronous Rectified Step-Down (Buck) Converter

This article compiles everything you need to know about the 8682l. Whether you are troubleshooting a power supply, designing a consumer electronics product, or cross-referencing a part for a repair, this guide will decode the technical specifications, pin configuration, electrical characteristics, and practical applications of the 8682l.

Note on Part Number Variations: The "8682l" may sometimes appear as 8682L, 8682-L, or with manufacturer prefixes. Always verify the complete marking on the component body.

Typical use cases for an 8682L-class device

  • Local oscillators or VCOs inside PLLs for radio transceivers.
  • RF front-end building blocks (mixers, amplifiers) in point-to-point links.
  • Timing sources in broadcast and instrumentation.
  • Modules inside test equipment or aerospace systems if a qualified grade exists.

Pin Configuration

Understanding the pinout is crucial for designing and building circuits with the 8682L. Typically, datasheets will provide a diagram and table describing each pin's function.

5. Key Peripherals

  • Timer System: Features an 8-channel timer module. It supports Input Capture (measuring pulse widths), Output Compare (generating pulses), and Pulse Width Modulation (PWM) for motor control.
  • ATD (Analog-to-Digital): Typically an 8-channel, 8-bit or 10-bit ADC (depending on specific mask set) for reading sensors.
  • BDLC (Byte Data Link Controller): An on-board serial communication protocol often used in automotive networking (J1850 protocol).