MAX734ESA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low-dropout, adjustable output voltage
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Provides regulated voltage with low dropout for various applications
• Packaging/Quantity: Tube packaging, 100 units per tube

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.25V to 13.2V
• Dropout Voltage: 0.3V at 200mA load current
• Maximum Output Current: 200mA
• Line Regulation: ±0.05% typical
• Load Regulation: ±0.1% typical
• Quiescent Current: 75µA typical
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND (Ground): Connected to the ground reference of the circuit.
2. IN (Input): Connects to the input voltage source.
3. ADJ (Adjust): Adjusts the output voltage using an external resistor divider network.
4. BYP (Bypass): Connects a bypass capacitor to improve transient response and stability.
5. NC (No Connection): Not internally connected, can be left unconnected.
6. NC (No Connection): Not internally connected, can be left unconnected.
7. OUT (Output): Provides the regulated output voltage.
8. VCC (Voltage Common Collector): Connects to the positive supply voltage.

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• Adjustable output voltage allows flexibility in various applications.
• Excellent line and load regulation provide stable output voltage under varying conditions.
• Low quiescent current minimizes power consumption.
• Thermal shutdown and current limit protection ensure safe operation.

Advantages and Disadvantages

Advantages

• Low dropout voltage enables efficient regulation.
• Adjustable output voltage provides versatility.
• Excellent line and load regulation ensure stable performance.
• Low quiescent current minimizes power consumption.

Disadvantages

• Maximum output current limited to 200mA.
• Limited operating temperature range (-40°C to +85°C).

Working Principles

The MAX734ESA is a low-dropout voltage regulator that uses a PNP pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the divided output voltage using an external resistor network connected to the ADJ pin. The regulator adjusts the pass transistor's base-emitter voltage to maintain a constant output voltage, compensating for input voltage variations and load changes.

Detailed Application Field Plans

The MAX734ESA can be used in various applications requiring regulated voltage with low dropout. Some potential application fields include:

1. Battery-powered devices: Provides regulated voltage for portable electronics, ensuring stable operation even as the battery discharges.
2. Automotive electronics: Regulates voltage for automotive systems, maintaining stable performance under varying conditions.
3. Industrial control systems: Ensures reliable voltage regulation for industrial automation and control equipment.
4. Communication devices: Provides stable voltage for communication systems, preventing signal degradation.
5. Medical devices: Regulates voltage for medical equipment, ensuring accurate and safe operation.

Detailed and Complete Alternative Models

1. LM1117-ADJ: Adjustable voltage regulator with similar specifications and package.
2. LT1763-ADJ: Low dropout voltage regulator with adjustable output voltage.
3. TPS79633-ADJ: High-performance voltage regulator with adjustable output voltage.
4. MCP1700-ADJ: Low quiescent current voltage regulator with adjustable output voltage.
5. LP2985-ADJ: Ultra-low dropout voltage regulator with adjustable output voltage.

(Note: The above alternative models are just a few examples and not an exhaustive list.)

This entry provides an overview of the MAX734ESA voltage regulator, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.