LT1761ES5-BYP#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics:
  • Low Dropout Voltage
  • Low Quiescent Current
  • High PSRR (Power Supply Rejection Ratio)
  • Small Package Size (SOT-23-5)
• Package: SOT-23-5
• Essence: LT1761ES5-BYP#TRPBF is a voltage regulator IC designed to provide a stable output voltage from an input power supply. It is commonly used in electronic devices to regulate and maintain a constant voltage level, ensuring proper functioning of the connected components.
• Packaging/Quantity: The LT1761ES5-BYP#TRPBF is typically sold in reels containing 3000 units.

Specifications

• Input Voltage Range: 2.5V to 20V
• Output Voltage Range: 1.21V to 20V
• Output Current: Up to 100mA
• Dropout Voltage: 300mV at 100mA
• Quiescent Current: 40µA
• PSRR: 70dB at 1kHz
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT1761ES5-BYP#TRPBF has a SOT-23-5 package with the following pin configuration:

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Pin 1: VIN (Input Voltage) Pin 2: GND (Ground) Pin 3: BYP (Bypass Capacitor) Pin 4: NC (No Connection) Pin 5: VOUT (Output Voltage)

Functional Features

• Low Dropout Voltage: The LT1761ES5-BYP#TRPBF exhibits a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: With a quiescent current of only 40µA, the LT1761ES5-BYP#TRPBF minimizes power consumption and extends battery life in portable devices.
• High PSRR: The IC has a high Power Supply Rejection Ratio of 70dB at 1kHz, ensuring stable output voltage even in the presence of power supply noise.
• Small Package Size: The SOT-23-5 package offers a compact form factor, making it suitable for space-constrained applications.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation. - Low quiescent current for reduced power consumption. - High PSRR provides stable output voltage. - Small package size allows for easy integration into various designs.

Disadvantages: - Limited output current capability (up to 100mA). - No connection on pin 4 limits flexibility in certain applications.

Working Principles

The LT1761ES5-BYP#TRPBF operates as a linear voltage regulator. It takes an input voltage (VIN) and regulates it to provide a stable output voltage (VOUT). The BYP pin is connected to a bypass capacitor, which helps improve stability and reduce noise. The internal circuitry of the IC adjusts the output voltage based on the feedback mechanism, maintaining a constant voltage level despite variations in the input voltage.

Detailed Application Field Plans

The LT1761ES5-BYP#TRPBF finds applications in various electronic devices where a stable voltage supply is required. Some common application fields include:

1. Portable Electronics: The IC is suitable for powering microcontrollers, sensors, and other low-power components in portable devices such as smartphones, tablets, and wearables.
2. Automotive Electronics: It can be used in automotive applications to regulate voltage for infotainment systems, dashboard displays, and control modules.
3. Industrial Control Systems: The LT1761ES5-BYP#TRPBF is well-suited for industrial control systems that require stable voltage supply for PLCs (Programmable Logic Controllers), motor drives, and sensors.
4. Wireless Communication Devices: It can be employed in wireless communication devices like routers, modems, and IoT (Internet of Things) devices to ensure a reliable power source.

Detailed and Complete Alternative Models

1. LM1117-ADJ: A popular alternative with adjustable output voltage and higher output current capability.
2. MCP1700-3302E/TO: Another option with fixed 3.3V output voltage and lower dropout voltage.
3. TS2950CT-3.3: Fixed 3.3V output voltage regulator with similar characteristics