S-1137B20-M5T1U

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: This IC is designed to regulate and stabilize the output voltage in electronic circuits.
• Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV (typical)
• Output Current: 150mA (maximum)
• Quiescent Current: 30µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1137B20-M5T1U IC has a total of five pins arranged as follows:

```

---

| | --| Vout GND|-- Pin 1: Ground (GND) --| Vin NC |-- Pin 2: No Connection (NC) --| EN Vout|-- Pin 3: Output Voltage (Vout) --| FB EN |-- Pin 4: Enable (EN) --| Vin Vin |-- Pin 5: Input Voltage (Vin) |___________| ```

Functional Features

• Low Dropout Voltage: The IC maintains a stable output voltage even when the input voltage is close to the desired output voltage.
• High Output Voltage Accuracy: Provides precise and accurate output voltage regulation.
• Low Quiescent Current: Consumes minimal current when the load is not drawing power, resulting in improved energy efficiency.
• Overcurrent Protection: Safeguards the IC and the connected circuitry from excessive current flow.
• Thermal Shutdown Protection: Prevents overheating by shutting down the IC when the temperature exceeds a certain threshold.

Advantages

• Compact Package: The SOT-23-5 package allows for space-saving integration into small electronic devices.
• Wide Input Voltage Range: Can operate with input voltages ranging from 2.5V to 6.0V, providing flexibility in various applications.
• High Output Voltage Accuracy: Ensures stable and reliable performance of the regulated voltage.
• Low Quiescent Current: Helps conserve power and extend battery life in portable devices.

Disadvantages

• Limited Output Current: The maximum output current of 150mA may not be sufficient for high-power applications.
• Noisy Output: In some cases, the IC may introduce noise into the regulated output voltage.

Working Principles

The S-1137B20-M5T1U is a linear voltage regulator that utilizes a pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant output voltage. The enable pin (EN) allows for control of the regulator's operation, enabling or disabling the output as needed.

Detailed Application Field Plans

The S-1137B20-M5T1U is commonly used in various electronic devices and circuits that require stable and regulated voltage supply. Some typical application fields include: - Battery-powered devices - Portable consumer electronics - IoT devices - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

• S-1137B18-M5T1U: Similar specifications but with a lower output voltage range (1.2V to 4.5V).
• S-1137B25-M5T1U: Similar specifications but with a higher output voltage range (1.2V to 6.0V).
• S-1137B30-M5T1U: Similar specifications but with a higher output current capability (300mA).

Note: These alternative models are provided as examples and may not cover all available alternatives in the market.

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