S-1137A15-U5T1U

Basic Information Overview

• Category: Electronic Component
• Use: Voltage Regulator
• Characteristics: High efficiency, low dropout voltage, compact size
• Package: SOT-23-5
• Essence: Integrated circuit voltage regulator
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Output Current: 150mA (maximum)
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 50µA (typical)

Detailed Pin Configuration

The S-1137A15-U5T1U has a total of five pins arranged in the following configuration:

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Pin 1: VIN - Input Voltage Pin 2: GND - Ground Pin 3: EN - Enable Pin Pin 4: VOUT - Output Voltage Pin 5: CE - Capacitor Connection

Functional Features

• Low dropout voltage ensures stable output even with small input-output voltage differentials.
• High efficiency minimizes power dissipation and extends battery life.
• Built-in overcurrent protection safeguards the device and connected components.
• Thermal shutdown protection prevents overheating.

Advantages and Disadvantages

Advantages: - Compact size allows for easy integration into space-constrained designs. - Wide input voltage range provides flexibility in various applications. - Low quiescent current reduces power consumption during standby mode.

Disadvantages: - Limited output current may not be suitable for high-power applications. - Requires an external capacitor for stability.

Working Principles

The S-1137A15-U5T1U is a linear voltage regulator that uses an internal PNP transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusting the pass transistor accordingly. This ensures a stable output voltage despite variations in input voltage and load conditions.

Detailed Application Field Plans

The S-1137A15-U5T1U is commonly used in various electronic devices, including: 1. Portable consumer electronics such as smartphones, tablets, and portable media players. 2. Battery-powered devices like digital cameras, handheld gaming consoles, and wireless headsets. 3. Industrial applications such as sensors, control systems, and instrumentation equipment. 4. Automotive electronics, including infotainment systems, navigation devices, and lighting controls.

Detailed and Complete Alternative Models

1. S-1137A18-U5T1U: Similar to S-1137A15-U5T1U but with a higher output current of 180mA.
2. S-1137A12-U5T1U: Similar to S-1137A15-U5T1U but with a lower output voltage range of 0.8V to 4.5V.
3. S-1137A20-U5T1U: Similar to S-1137A15-U5T1U but with a higher output voltage range of 1.5V to 6.5V.

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

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