S-1200B21-M5T1U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics:
  • Low dropout voltage
  • High output voltage accuracy
  • Low quiescent current
  • Thermal shutdown protection
• Package: SOT-23-5
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 1.2V
• Output Current: 150mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 30µA
• Line Regulation: ±0.2%
• Load Regulation: ±0.4%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1200B21-M5T1U has a total of five pins arranged as follows:

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Pin 1: VIN (Input Voltage) Pin 2: GND (Ground) Pin 3: NC (No Connection) Pin 4: VOUT (Output Voltage) Pin 5: EN (Enable)

Functional Features

• Low dropout voltage ensures stable operation even with small input-output voltage differentials.
• High output voltage accuracy provides precise voltage regulation for sensitive applications.
• Low quiescent current minimizes power consumption in standby or idle modes.
• Thermal shutdown protection prevents the IC from overheating and damaging itself.

Advantages and Disadvantages

Advantages: - Compact SOT-23-5 package allows for space-efficient designs. - Wide input voltage range enables compatibility with various power sources. - Excellent line and load regulation ensures stable output voltage under different conditions.

Disadvantages: - Limited output current of 150mA may not be sufficient for high-power applications. - No adjustable output voltage option available.

Working Principles

The S-1200B21-M5T1U is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor accordingly to maintain a constant output voltage.

Detailed Application Field Plans

The S-1200B21-M5T1U is commonly used in various battery-powered devices, such as: - Portable electronic devices (smartphones, tablets) - Wearable devices (fitness trackers, smartwatches) - IoT devices - Wireless communication modules

Detailed and Complete Alternative Models

• S-1200B12-M3T1U: Output voltage of 1.2V, 100mA output current, SOT-23-3 package.
• S-1200B33-M5T1U: Output voltage of 3.3V, 150mA output current, SOT-23-5 package.
• S-1200B05-M3T1U: Output voltage of 5V, 100mA output current, SOT-23-3 package.

Note: These alternative models have similar characteristics and are suitable replacements depending on specific requirements.

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