S-1137C12-U5T1G

Basic Information Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output voltage accuracy - Low quiescent current - Thermal shutdown protection - Overcurrent protection - Short-circuit protection

Package: SOT-23-5

Essence: The S-1137C12-U5T1G is a voltage regulator IC designed to provide a stable output voltage for various electronic devices.

Packaging/Quantity: The S-1137C12-U5T1G is typically sold in reels of 3000 units.

Specifications

• Input Voltage Range: 2.5V - 6.0V
• Output Voltage: 1.2V
• Output Current: 500mA
• Dropout Voltage: 200mV @ 100mA
• Quiescent Current: 30μA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1137C12-U5T1G has the following pin configuration:

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

Functional Features

• Low Dropout Voltage: The S-1137C12-U5T1G exhibits a low dropout voltage, ensuring efficient power conversion even when the input voltage is close to the desired output voltage.
• High Output Voltage Accuracy: This voltage regulator provides a high level of output voltage accuracy, ensuring stable and reliable performance of the connected electronic devices.
• Low Quiescent Current: With a low quiescent current, the S-1137C12-U5T1G minimizes power consumption when the load is light or idle, making it suitable for battery-powered applications.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive heat by shutting down the regulator temporarily.
• Overcurrent Protection: The S-1137C12-U5T1G features overcurrent protection, safeguarding the connected devices from excessive current flow.
• Short-Circuit Protection: In case of a short circuit, the voltage regulator automatically shuts down to protect both the regulator and the connected devices.

Advantages and Disadvantages

Advantages: - High output voltage accuracy ensures stable performance of electronic devices. - Low dropout voltage allows efficient power conversion. - Low quiescent current minimizes power consumption. - Thermal shutdown, overcurrent, and short-circuit protections enhance device reliability.

Disadvantages: - Limited output current capacity (500mA).

Working Principles

The S-1137C12-U5T1G operates as a linear voltage regulator. It regulates the input voltage to a stable 1.2V output voltage using an internal reference voltage and feedback control mechanism. The regulator adjusts its internal resistance to maintain the desired output voltage regardless of changes in the input voltage or load conditions.

Detailed Application Field Plans

The S-1137C12-U5T1G is commonly used in various electronic devices that require a stable 1.2V power supply. Some typical application fields include: - Mobile phones - Portable media players - Digital cameras - Wireless communication devices - Battery-powered devices

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the S-1137C12-U5T1G are: - LM1117-1.2 - MCP1700-1202E/TO - TS2937CP-1.2

These models offer similar voltage regulation capabilities and can be used as substitutes depending on specific application requirements.

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