MAX157BCUA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics:
  • High efficiency
  • Low dropout voltage
  • Adjustable output voltage
  • Small package size
• Package: SOT-23-8
• Essence: Linear regulator with adjustable output voltage
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 120mV at 150mA load current
• Maximum Output Current: 150mA
• Line Regulation: ±0.05% typical
• Load Regulation: ±0.1% typical
• Quiescent Current: 40µA typical
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX157BCUA+T has a total of 8 pins arranged as follows:

1. GND (Ground)
2. IN (Input Voltage)
3. EN (Enable)
4. FB (Feedback)
5. VOUT (Output Voltage)
6. NC (No Connection)
7. NC (No Connection)
8. VDD (Supply Voltage)

Functional Features

• Adjustable output voltage using external resistors
• Low dropout voltage allows operation with small input-output differentials
• Excellent line and load regulation for stable output voltage
• Thermal shutdown protection prevents damage due to excessive heat
• Low quiescent current extends battery life in portable applications

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Adjustable output voltage - Small package size - Low dropout voltage

Disadvantages: - Limited maximum output current (150mA) - Not suitable for high-power applications

Working Principles

The MAX157BCUA+T is a linear voltage regulator that provides a stable and adjustable output voltage. It operates by comparing the feedback voltage (FB) with an internal reference voltage to regulate the output voltage (VOUT). The enable pin (EN) controls the operation of the regulator, allowing it to be turned on or off as needed.

Detailed Application Field Plans

The MAX157BCUA+T is commonly used in various electronic devices and systems where a stable and adjustable voltage supply is required. Some typical application fields include:

1. Battery-powered devices
2. Portable consumer electronics
3. Industrial control systems
4. Automotive electronics
5. Medical equipment

Detailed and Complete Alternative Models

1. LM317T: Adjustable Linear Voltage Regulator, TO-220 package
2. LT1763: Low Dropout Linear Regulator, SOT-23 package
3. ADP3339: High Accuracy Ultralow Dropout Linear Regulator, SOT-223 package
4. TPS7A4700: Low Noise, High PSRR, 1A Low-Dropout Linear Regulator, SOT-223 package
5. LP2985: Micropower, 150 mA Ultra-Low-Dropout Voltage Regulator, SOT-23 package

These alternative models offer similar functionality and can be considered as substitutes for the MAX157BCUA+T in various applications.

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