S-1137A21-U5T1U

Basic Information Overview

• Category: Electronic Component
• Use: Voltage Regulator
• Characteristics: High efficiency, low dropout voltage, compact size
• Package: SOT-23-5
• Essence: Regulates input voltage to a stable output voltage
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V - 6.0V
• Output Voltage Range: 1.2V - 5.0V
• Dropout Voltage: 200mV (typical)
• Maximum Output Current: 100mA
• Quiescent Current: 30µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1137A21-U5T1U has a total of five pins arranged as follows: 1. VIN: Input Voltage Pin 2. GND: Ground Pin 3. EN: Enable Pin 4. VOUT: Output Voltage Pin 5. NC: No Connection Pin

Functional Features

• Low dropout voltage ensures efficient power conversion even with small input-output voltage differentials.
• Built-in overcurrent protection safeguards the device and connected circuitry from excessive current flow.
• Thermal shutdown feature prevents overheating by disabling the regulator when the temperature exceeds a certain threshold.
• Reverse current protection prevents current from flowing back into the regulator, protecting it from damage.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption. - Compact size allows for easy integration into space-constrained designs. - Wide input voltage range provides flexibility in various applications. - Overcurrent and reverse current protection enhance reliability.

Disadvantages: - Limited maximum output current may restrict usage in high-power applications. - Dropout voltage may cause a slight voltage drop across the regulator.

Working Principles

The S-1137A21-U5T1U is a linear voltage regulator that operates by comparing the output voltage to a reference voltage. It adjusts the resistance in the internal circuitry to maintain a stable output voltage, regardless of changes in the input voltage or load conditions. The regulator uses a feedback loop to continuously monitor and adjust the output voltage, ensuring it remains within the specified range.

Detailed Application Field Plans

The S-1137A21-U5T1U finds applications in various electronic devices, including: 1. Battery-powered portable devices: Provides a stable voltage supply for microcontrollers, sensors, and other low-power components. 2. Communication systems: Used to regulate voltage in wireless modules, routers, and network equipment. 3. Automotive electronics: Ensures a constant voltage supply for automotive control units, infotainment systems, and lighting modules. 4. Industrial automation: Used in PLCs, motor control systems, and instrumentation devices to maintain stable power supply.

Detailed and Complete Alternative Models

1. S-1137A22-U5T1U: Similar to S-1137A21-U5T1U but with a higher maximum output current of 200mA.
2. S-1137A20-U5T1U: Similar to S-1137A21-U5T1U but with a lower dropout voltage of 100mV.
3. S-1137A23-U5T1U: Similar to S-1137A21-U5T1U but with an extended operating temperature range of -40°C to +105°C.

(Note: These alternative models are provided as examples and may not cover all available options.)

In conclusion, the S-1137A21-U5T1U is a compact and efficient voltage regulator suitable for a wide range of applications. Its high efficiency, low dropout voltage, and built-in protection features make it a reliable choice for various electronic devices.