AP2129K-ADJTRG1

Product Overview

Category

AP2129K-ADJTRG1 belongs to the category of voltage regulators.

Use

It is commonly used for regulating voltage in electronic circuits.

Characteristics

• Adjustable output voltage
• Low dropout voltage
• High output current capability
• Thermal shutdown protection
• Short-circuit current limiting

Package

AP2129K-ADJTRG1 is available in a small surface-mount package.

Essence

The essence of AP2129K-ADJTRG1 lies in its ability to regulate voltage efficiently and reliably.

Packaging/Quantity

This product is typically packaged in reels or tubes, with varying quantities depending on the supplier.

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 0.8V to VIN
• Output Current: Up to 500mA
• Dropout Voltage: 300mV (typical)
• Quiescent Current: 120µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

AP2129K-ADJTRG1 has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin
4. EN: Enable pin
5. VOUT: Output voltage pin

Functional Features

• Adjustable output voltage allows flexibility in various applications.
• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• High output current capability enables it to power a wide range of devices.
• Thermal shutdown protection prevents damage due to excessive temperature.
• Short-circuit current limiting protects the regulator and the connected circuitry.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows compatibility with different power sources.
• Adjustable output voltage provides versatility in design.
• Low dropout voltage minimizes power dissipation and improves efficiency.
• Thermal shutdown protection enhances reliability and safety.
• Short-circuit current limiting protects the circuit from damage.

Disadvantages

• Limited output current compared to higher-capacity regulators.
• Higher quiescent current compared to some low-power alternatives.

Working Principles

AP2129K-ADJTRG1 is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB) with a reference voltage to adjust the pass transistor's resistance. This adjustment ensures that the output voltage remains stable despite variations in the input voltage or load conditions.

Detailed Application Field Plans

AP2129K-ADJTRG1 finds applications in various fields, including but not limited to: - Battery-powered devices - Portable electronics - Automotive systems - Industrial equipment - Communication devices

Detailed and Complete Alternative Models

Some alternative models to AP2129K-ADJTRG1 include: - LM317: A popular adjustable linear voltage regulator with similar features. - LT1763: A low dropout linear regulator with high output current capability. - TPS7A47: An ultra-low noise linear regulator suitable for sensitive applications.

These alternative models offer similar functionality and can be considered based on specific requirements and design constraints.

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