S-1135A12-M5T1U

Basic Information Overview

• Category: Voltage Regulator
• Use: Regulates voltage in electronic circuits
• Characteristics:
  • Input Voltage Range: 2.0V to 6.0V
  • Output Voltage Range: 0.8V to 5.5V
  • Maximum Output Current: 150mA
  • Low Quiescent Current: 20µA (typical)
  • Package: SOT-23-5
  • Essence: Low dropout voltage, low quiescent current, and high ripple rejection
  • Packaging/Quantity: Tape and Reel / 3000 units per reel

Specifications

• Input Voltage Range: 2.0V to 6.0V
• Output Voltage Range: 0.8V to 5.5V
• Output Current: Up to 150mA
• Dropout Voltage: 200mV (typical) at 100mA load
• Quiescent Current: 20µA (typical)
• Ripple Rejection Ratio: 70dB (typical) at 1kHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1135A12-M5T1U has a SOT-23-5 package with the following pin configuration:

```

---

| | --| Vout| --| GND | --| Vin | --| EN | |____| ```

• Vout: Output Voltage
• GND: Ground
• Vin: Input Voltage
• EN: Enable Pin

Functional Features

• Low Dropout Voltage: The S-1135A12-M5T1U has a low dropout voltage of 200mV (typical) at 100mA load, ensuring efficient voltage regulation even with low input voltages.
• Low Quiescent Current: With a typical quiescent current of only 20µA, the regulator minimizes power consumption in standby or idle modes.
• High Ripple Rejection: The device offers a high ripple rejection ratio of 70dB (typical) at 1kHz, providing stable output voltage even in the presence of noise or fluctuations in the input supply.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for flexibility in various applications. - Low dropout voltage ensures efficient voltage regulation. - Low quiescent current minimizes power consumption. - High ripple rejection provides stable output voltage.

Disadvantages: - Maximum output current limited to 150mA, which may not be sufficient for high-power applications. - Limited operating temperature range (-40°C to +85°C) may restrict usage in extreme environments.

Working Principles

The S-1135A12-M5T1U is a linear voltage regulator that uses a PNP transistor as the pass element. It regulates the output voltage by adjusting the resistance between the input and output terminals. When the input voltage exceeds the desired output voltage, the pass element reduces the resistance, allowing excess voltage to be dissipated as heat. Conversely, when the input voltage drops below the desired output voltage, the pass element increases the resistance to maintain a stable output voltage.

Detailed Application Field Plans

The S-1135A12-M5T1U can be used in various electronic circuits requiring voltage regulation. Some potential application fields include: - Battery-powered devices: Portable electronics, handheld instruments, etc. - IoT devices: Sensors, wearables, smart home devices, etc. - Automotive electronics: Infotainment systems, navigation systems, etc. - Industrial control systems: PLCs, motor control, etc. - Communication equipment: Routers, modems, etc.

Detailed and Complete Alternative Models

• S-1135A12-M5T1U: 2.0V to 6.0V input voltage range, 0.8V to 5.5V output voltage range, 150mA maximum output current.
• S-1135B12-M5T1U: 2.0V to 6.0V input voltage range, 0.8V to 5.5V output voltage range, 300mA maximum output current.
• S-1135C12-M5T1U: 2.0V to 6.0V input voltage range, 0.8V to 5.5V output voltage range, 500mA maximum output current.

These alternative models offer similar functionality but with varying output current capabilities to suit different application requirements.

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