S-1317A27-M5T1U4

Basic Information Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - Low quiescent current - High ripple rejection ratio - Built-in overcurrent protection - Built-in thermal shutdown circuit - Small package size

Package: SOT-23-5

Essence: The S-1317A27-M5T1U4 is a voltage regulator IC designed to provide a stable output voltage from an input voltage source. It is commonly used in electronic devices to regulate and maintain a constant voltage level for various components.

Packaging/Quantity: The S-1317A27-M5T1U4 is typically sold in reels or tubes, with each reel or tube containing a specific quantity of ICs.

Specifications

• Input Voltage Range: 2.0V to 6.0V
• Output Voltage: 2.7V
• Output Current: Up to 1.0A
• Dropout Voltage: 0.15V (typical)
• Quiescent Current: 45μA (typical)
• Ripple Rejection Ratio: 70dB (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1317A27-M5T1U4 has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. CE: Chip enable pin
4. VOUT: Output voltage pin
5. NC: No connection pin

Functional Features

• Low Dropout Voltage: The S-1317A27-M5T1U4 exhibits a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: The IC has a low quiescent current, minimizing power consumption when the load is light or idle.
• High Ripple Rejection Ratio: It provides excellent rejection of input voltage ripples, ensuring a stable output voltage even in noisy environments.
• Overcurrent Protection: The IC incorporates built-in overcurrent protection to safeguard against excessive current flow, preventing damage to the device and connected components.
• Thermal Shutdown Circuit: In case of excessive temperature rise, the thermal shutdown circuit activates, protecting the IC from overheating and potential failure.
• Small Package Size: The SOT-23-5 package offers a compact form factor, making it suitable for space-constrained applications.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient voltage regulation. - Low quiescent current minimizes power consumption. - High ripple rejection ratio provides a stable output voltage in noisy environments. - Built-in overcurrent protection enhances device and component safety. - Thermal shutdown circuit prevents overheating and potential failure. - Small package size allows for easy integration into various electronic devices.

Disadvantages: - Limited output current capacity (up to 1.0A). - Input voltage range restricted to 2.0V to 6.0V.

Working Principles

The S-1317A27-M5T1U4 operates as a linear voltage regulator. It regulates the output voltage by maintaining a constant voltage drop across its internal pass transistor. When the input voltage exceeds the desired output voltage, the pass transistor adjusts its resistance to reduce the voltage difference, thereby regulating the output voltage. The IC continuously monitors the output voltage and adjusts the pass transistor accordingly to maintain stability.

Detailed Application Field Plans

The S-1317A27-M5T1U4 finds application in various electronic devices where a stable voltage supply is required. Some common application fields include:

1. Mobile Devices: Used to regulate power supply for mobile phones, tablets, and portable media players.
2. Consumer Electronics: Provides voltage regulation for audio/video equipment, gaming consoles, and digital cameras.
3. Automotive Electronics: Used in automotive systems such as infotainment systems, navigation devices, and lighting control modules.
4. Industrial Equipment: Regulates voltage for industrial automation systems, control panels, and sensors.
5. IoT Devices: Provides stable power supply for Internet of Things (IoT) devices like smart home appliances, wearables, and environmental sensors.

Detailed and Complete Alternative Models

1. S-1317A27-M5T1U3: Similar to S-1317A27-M5T1U4 but with an output voltage of 2.6V.
2. S-1317A27-M5T1U5: Similar to S-1317A27-M5T1U4 but with an output voltage of 2.8V.
3. S-1317A27-M5T1U6: Similar