AP2138N-1.2TRG1

Product Overview

Category

AP2138N-1.2TRG1 belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Package: The AP2138N-1.2TRG1 comes in a compact SOT-23 package.
• Essence: This voltage regulator is designed to provide stable and regulated output voltage.
• Packaging/Quantity: It is typically available in reels or tubes, with varying quantities depending on the supplier.

Specifications

The AP2138N-1.2TRG1 has the following specifications:

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage: 1.2V
• Maximum Output Current: 500mA
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 50µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AP2138N-1.2TRG1 has three pins:

1. VIN (Pin 1): Input voltage pin.
2. GND (Pin 2): Ground reference pin.
3. VOUT (Pin 3): Regulated output voltage pin.

Functional Features

The key functional features of AP2138N-1.2TRG1 include:

• Low dropout voltage: The regulator maintains a stable output voltage even when the input voltage is close to the desired output voltage.
• Low quiescent current: It consumes minimal current when in standby mode, conserving power.
• Overcurrent protection: The device includes built-in protection against excessive output current.
• Thermal shutdown: In case of high temperature, the regulator shuts down to prevent damage.

Advantages and Disadvantages

Advantages

• Compact package size allows for easy integration into space-constrained designs.
• Low dropout voltage ensures efficient power conversion.
• Overcurrent protection enhances the reliability of the circuit.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Operating temperature range may restrict usage in extreme environments.

Working Principles

The AP2138N-1.2TRG1 operates based on a linear voltage regulation principle. It uses a feedback mechanism to compare the output voltage with a reference voltage and adjusts the internal circuitry to maintain a stable output voltage, regardless of input voltage variations.

Detailed Application Field Plans

The AP2138N-1.2TRG1 finds applications in various electronic devices, including but not limited to:

1. Mobile phones: It can regulate voltage for powering various components within the phone.
2. Portable audio players: The voltage regulator ensures stable power supply to audio processing circuits.
3. IoT devices: It is suitable for low-power IoT devices that require regulated voltage for their operation.
4. Battery-powered devices: The regulator helps maintain a constant voltage level as the battery discharges.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AP2138N-1.2TRG1 include:

1. LM1117-1.2: A popular voltage regulator with a fixed 1.2V output.
2. MCP1700-120: Another voltage regulator with a low dropout voltage and a 1.2V output.
3. TS2937CX-1.2: A compact SOT-23 packaged regulator with a 1.2V output.

These alternatives can be considered based on specific requirements and availability.

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