BA78M18FP-E2

Product Overview

Category

BA78M18FP-E2 belongs to the category of voltage regulators.

Use

It is used to regulate and stabilize the output voltage in electronic circuits.

Characteristics

• Input Voltage Range: 20V to 35V
• Output Voltage: 18V
• Maximum Output Current: 0.5A
• Dropout Voltage: 2V
• Operating Temperature Range: -40°C to +125°C
• Package Type: TO-252-3 (DPAK)
• Essence: Linear voltage regulator

Packaging/Quantity

The BA78M18FP-E2 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 20V to 35V
• Output Voltage: 18V
• Output Current: 0.5A
• Dropout Voltage: 2V
• Line Regulation: ±1%
• Load Regulation: ±2%
• Quiescent Current: 5mA
• Ripple Rejection Ratio: 60dB
• Thermal Shutdown Protection: Yes
• Short Circuit Protection: Yes

Pin Configuration

The BA78M18FP-E2 has three pins:

1. Vin (Input Voltage)
2. GND (Ground)
3. Vout (Output Voltage)

Functional Features

• Regulates and stabilizes the output voltage within a specified range.
• Provides protection against thermal shutdown and short circuits.
• Offers good ripple rejection ratio for improved performance.
• Low quiescent current consumption.

Advantages

• Simple and easy to use.
• Wide input voltage range.
• Compact package size.
• Good thermal management.
• Reliable and durable.

Disadvantages

• Limited maximum output current.
• Dropout voltage may affect efficiency in low input voltage scenarios.
• Not suitable for high-power applications.

Working Principles

The BA78M18FP-E2 is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The BA78M18FP-E2 is commonly used in various electronic devices and circuits, including:

1. Power supplies for audio amplifiers.
2. Battery charging circuits.
3. Industrial control systems.
4. Automotive electronics.
5. Telecommunications equipment.

Detailed and Complete Alternative Models

1. LM7818: Similar specifications and pin configuration.
2. MC78M18: Equivalent performance and package type.
3. UA7818: Comparable characteristics and functionality.

These alternative models can be considered as substitutes for the BA78M18FP-E2, depending on specific requirements and availability.

In conclusion, the BA78M18FP-E2 is a voltage regulator that provides stable and regulated output voltage for various electronic applications. Its compact size, wide input voltage range, and protection features make it a reliable choice for many circuit designs. However, its limited maximum output current and dropout voltage should be taken into consideration when selecting this component for high-power applications.