S-1172B17-U5T1G

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-1172B17-U5T1G is a voltage regulator IC designed to provide a stable output voltage from an input voltage source.

Packaging/Quantity: The S-1172B17-U5T1G is available in a SOT-23-5 package. Each package contains one IC.

Specifications

• Input Voltage Range: 2.0V - 6.0V
• Output Voltage Range: 1.7V - 5.5V
• Dropout Voltage: 200mV @ 100mA
• Output Current: 100mA
• Quiescent Current: 30µA
• Line Regulation: ±0.05%/V
• Load Regulation: ±0.3%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1172B17-U5T1G has 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: CE (Control Enable)

Functional Features

• Low dropout voltage ensures stable output even with small input-output voltage differentials.
• High output voltage accuracy provides precise regulation for sensitive electronic components.
• Low quiescent current minimizes power consumption when the load is light.
• Overcurrent protection safeguards the IC and connected devices from excessive current.
• Thermal shutdown protection prevents overheating and damage to the IC.

Advantages

• Wide input voltage range allows for versatile applications.
• Small package size (SOT-23-5) enables space-saving designs.
• Excellent line and load regulation ensure stable output under varying conditions.
• Low quiescent current prolongs battery life in portable devices.
• Overcurrent and thermal shutdown protections enhance system reliability.

Disadvantages

• Limited output current of 100mA may not be sufficient for high-power applications.
• No adjustable output voltage option available.
• NC pin serves no function, reducing pin utility.

Working Principles

The S-1172B17-U5T1G operates as a linear voltage regulator. It regulates the output voltage by maintaining a constant voltage drop across its internal pass transistor. The control circuitry adjusts the pass transistor's resistance to compensate for changes in the input voltage and load conditions, ensuring a stable output voltage.

Detailed Application Field Plans

The S-1172B17-U5T1G is suitable for various applications, including but not limited to: - Battery-powered devices - Portable electronic equipment - Communication devices - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

1. S-1172B18-U5T1G: Similar specifications, but with an adjustable output voltage feature.
2. S-1172B16-U5T1G: Lower dropout voltage and higher output current capability.
3. S-1172B19-U5T1G: Higher output voltage range and lower quiescent current.

These alternative models offer different features and specifications to cater to specific application requirements.

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