S-1137D21-U5T1G

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Current, Adjustable Output
• Package: SOT-23-5
• Essence: Regulates input voltage to a desired output voltage level
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V - 6.0V
• Output Voltage Range: 0.8V - 5.0V
• Maximum Output Current: 1.0A
• Dropout Voltage: 200mV @ 500mA
• Quiescent Current: 75µA
• Line Regulation: ±0.05%
• Load Regulation: ±0.1%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1137D21-U5T1G IC 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: NC (No Connection) Pin 4: VOUT (Output Voltage) Pin 5: EN (Enable)

Functional Features

• Low dropout voltage ensures efficient power conversion even with small input-output voltage differentials.
• High current capability allows for powering various electronic components.
• Adjustable output voltage enables customization according to specific requirements.
• Enable pin provides control over the regulator's operation.

Advantages

• Wide input voltage range accommodates diverse power supply sources.
• Excellent line and load regulation ensure stable output voltage under varying conditions.
• Low quiescent current minimizes power consumption during standby or idle states.
• Small package size (SOT-23-5) facilitates space-constrained applications.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Dropout voltage of 200mV may cause a slight voltage drop across the regulator.

Working Principles

The S-1137D21-U5T1G is a linear voltage regulator that utilizes a pass transistor to regulate the input voltage. It operates by comparing the output voltage with a reference voltage and adjusting the pass transistor's resistance to maintain a stable output voltage level. The enable pin allows for on/off control of the regulator, conserving power when not required.

Detailed Application Field Plans

The S-1137D21-U5T1G finds application in various electronic devices and systems, including: 1. Battery-powered portable devices: Provides regulated voltage for microcontrollers, sensors, and other components. 2. Automotive electronics: Ensures stable power supply to automotive modules, such as infotainment systems and engine control units. 3. Industrial equipment: Used in control circuits, motor drivers, and power management systems. 4. Communication devices: Regulates voltage for wireless modules, routers, and network switches. 5. Consumer electronics: Enables reliable power delivery to audio/video equipment, gaming consoles, and smart home devices.

Detailed and Complete Alternative Models

1. S-1137D21-M5T1G: Similar specifications and pin configuration, but with a fixed output voltage of 3.3V.
2. S-1137D21-N5T1G: Comparable characteristics and pinout, but offers an adjustable output voltage range of 0.8V - 3.6V.
3. S-1137D21-R5T1G: Alternative variant with identical features and pin arrangement, but optimized for low noise applications.

(Note: These alternative models are provided for illustrative purposes and may not represent an exhaustive list of available alternatives.)

In conclusion, the S-1137D21-U5T1G is a versatile voltage regulator IC with excellent performance characteristics. Its adjustable output voltage, high current capability, and compact package make it suitable for a wide range of applications in various industries.