MP2102DK-LF-Z

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Wide input voltage range - Adjustable output voltage - Thermal shutdown protection - Short-circuit current limit

Package: TO-252-5L (DPAK)

Essence: The MP2102DK-LF-Z is a voltage regulator IC designed to provide a stable and regulated output voltage from a varying input voltage source.

Packaging/Quantity: The MP2102DK-LF-Z is available in a TO-252-5L package, commonly known as DPAK. It is supplied in tape and reel packaging with 2500 units per reel.

Specifications

• Input Voltage Range: 4V to 18V
• Output Voltage Range: 1.25V to 16V
• Dropout Voltage: 0.3V at 1A
• Output Current: Up to 1.5A
• Quiescent Current: 100µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MP2102DK-LF-Z has the following pin configuration:

```

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| | --| VIN GND |-- Pin 1: Input Voltage (VIN) --| VOUT NC |-- Pin 2: Output Voltage (VOUT) --| ADJ NC |-- Pin 3: Adjustable Voltage (ADJ) --| NC NC |-- Pin 4: No Connection (NC) --| GND EN |-- Pin 5: Ground (GND) / Enable (EN) |___________| ```

Functional Features

• Low Dropout Voltage: The MP2102DK-LF-Z exhibits a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With a maximum output current of 1.5A, this voltage regulator can handle a wide range of load requirements.
• Wide Input Voltage Range: The IC can accept input voltages ranging from 4V to 18V, making it suitable for various applications.
• Adjustable Output Voltage: The output voltage can be adjusted using an external resistor divider network connected to the ADJ pin.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature.
• Short-Circuit Current Limit: It features a short-circuit current limit that protects the IC and the load from excessive current during a short circuit condition.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - High output current capability for versatile applications - Wide input voltage range allows flexibility in power supply selection - Adjustable output voltage provides customization options - Thermal shutdown protection prevents overheating - Short-circuit current limit protects the IC and load

Disadvantages: - None identified

Working Principles

The MP2102DK-LF-Z operates as a linear voltage regulator. It uses a pass transistor to control the output voltage based on the feedback received from the ADJ pin. The internal circuitry compares the feedback voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The MP2102DK-LF-Z is commonly used in various applications, including but not limited to: - Power supplies for consumer electronics - Battery-powered devices - Automotive electronics - Industrial equipment - Telecommunications systems

Detailed and Complete Alternative Models

Some alternative models to the MP2102DK-LF-Z include: - LM317 - LT1084 - LM1117 - TPS7A47

These models offer similar voltage regulation capabilities and can be considered as alternatives based on specific application requirements.

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