S-1200B31-M5T1U

Basic Information Overview

• Category: Voltage Regulator
• Use: Power management
• Characteristics: Low dropout, high accuracy, small package size
• Package: SOT-23-5
• Essence: Step-down voltage regulator
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage: Adjustable from 0.8V to VIN
• Maximum Output Current: 200mA
• Dropout Voltage: 160mV at 100mA
• Line Regulation: ±0.2%
• Load Regulation: ±0.4%
• Quiescent Current: 45µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND (Ground)
2. VIN (Input Voltage)
3. EN (Enable)
4. FB (Feedback)
5. VOUT (Output Voltage)

Functional Features

• Low dropout voltage allows efficient regulation even with low input-output voltage differentials.
• High accuracy ensures precise output voltage regulation.
• Small package size enables space-saving designs in compact electronic devices.
• Enable pin provides control over the regulator's operation.
• Feedback pin allows adjustment of the output voltage.

Advantages

• Wide input voltage range accommodates various power supply sources.
• Adjustable output voltage offers flexibility for different applications.
• Low dropout voltage minimizes power dissipation and enhances efficiency.
• Excellent line and load regulation ensure stable output under varying conditions.
• Small package size facilitates integration into space-constrained designs.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Requires external components for proper operation, increasing overall system complexity.
• Sensitivity to input voltage fluctuations may affect performance in noisy environments.

Working Principles

The S-1200B31-M5T1U is a step-down voltage regulator that converts a higher input voltage to a lower output voltage. It utilizes a control loop to maintain the desired output voltage by adjusting the duty cycle of an internal switching transistor. This switching action allows efficient power transfer while minimizing power dissipation and dropout voltage.

Detailed Application Field Plans

The S-1200B31-M5T1U finds applications in various electronic devices requiring regulated power supply, such as: 1. Battery-powered portable devices (e.g., smartphones, tablets) for efficient power management. 2. IoT devices and sensors operating on low-voltage power sources. 3. Wearable electronics where small package size and low power consumption are crucial. 4. Industrial automation systems for stable and accurate voltage regulation. 5. Automotive electronics, including infotainment systems and advanced driver-assistance systems.

Detailed and Complete Alternative Models

1. S-1200B30-M5T1U: Similar specifications but with a fixed output voltage of 3.0V.
2. S-1200B33-M5T1U: Similar specifications but with a fixed output voltage of 3.3V.
3. S-1200B50-M5T1U: Similar specifications but with a fixed output voltage of 5.0V.
4. S-1200B12-M5T1U: Similar specifications but with a fixed output voltage of 12.0V.
5. S-1200B15-M5T1U: Similar specifications but with a fixed output voltage of 15.0V.

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

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