S-1172B12-E6T1G

Basic Information Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: SOT-23-5

Essence: The S-1172B12-E6T1G is a voltage regulator IC that provides a stable output voltage from an input voltage source.

Packaging/Quantity: The S-1172B12-E6T1G is typically packaged in reels, with 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 10V
• Output Voltage: 1.2V
• Output Current: Up to 500mA
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 30μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1172B12-E6T1G has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. NC: No connection pin
4. VOUT: Output voltage pin
5. EN: Enable pin

Functional Features

• Low dropout voltage ensures efficient power conversion even with small input-output voltage differentials.
• High output voltage accuracy ensures a stable and precise output voltage.
• Low quiescent current minimizes power consumption when the regulator is in standby mode.
• Overcurrent protection safeguards the IC and connected components from excessive current flow.
• Thermal shutdown protection prevents the IC from overheating by shutting down the regulator when the temperature exceeds a certain threshold.

Advantages and Disadvantages

Advantages: - High output voltage accuracy ensures reliable performance. - Low dropout voltage allows for efficient power conversion. - Overcurrent and thermal shutdown protection enhance system safety.

Disadvantages: - Limited output current capacity (up to 500mA). - Restricted input voltage range (2.5V to 10V).

Working Principles

The S-1172B12-E6T1G operates as a linear voltage regulator. It regulates the output voltage by comparing it with an internal reference voltage. The error amplifier adjusts the pass transistor to maintain the desired output voltage, compensating for any changes in the input voltage or load conditions. The overcurrent and thermal shutdown protection mechanisms ensure the safe operation of the IC.

Detailed Application Field Plans

The S-1172B12-E6T1G is commonly used in various electronic devices and systems that require a stable and regulated power supply. Some application fields include:

1. Mobile devices: Smartphones, tablets, portable media players.
2. Wireless communication systems: Wi-Fi routers, Bluetooth devices.
3. Consumer electronics: Digital cameras, gaming consoles, audio/video equipment.
4. Industrial automation: Control systems, sensors, actuators.
5. Automotive electronics: Infotainment systems, navigation systems, lighting control.

Detailed and Complete Alternative Models

1. S-1172B33-E6T1U: Output voltage of 3.3V, similar characteristics and package.
2. S-1172B18-E6T1U: Output voltage of 1.8V, similar characteristics and package.
3. S-1172B05-E6T1U: Output voltage of 0.5V, similar characteristics and package.

These alternative models provide different output voltages while maintaining similar characteristics and packaging options.

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