LT1965EMS8E-3.3#TRPBF

Product Overview

Category

The LT1965EMS8E-3.3#TRPBF belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and stabilize voltage levels.

Characteristics

• Voltage Output: 3.3V
• Package Type: MSOP-8
• Essence: Low Dropout Linear Regulator
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

The LT1965EMS8E-3.3#TRPBF has the following specifications:

• Input Voltage Range: 1.8V to 20V
• Dropout Voltage: 300mV at 1A Load Current
• Output Voltage Accuracy: ±2%
• Maximum Output Current: 1.1A
• Quiescent Current: 40µA
• Line Regulation: 0.02%/V
• Load Regulation: 0.04%/A
• Ripple Rejection: 70dB
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT1965EMS8E-3.3#TRPBF has a total of 8 pins arranged as follows:

```

---

| | --| VIN GND |-- Pin 1: VIN (Input Voltage) --| EN NC |-- Pin 2: EN (Enable) --| FB NC |-- Pin 3: FB (Feedback) --| VOUT NC |-- Pin 4: VOUT (Output Voltage) --| NC NC |-- Pins 5-8: No Connection |___________| ```

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• Excellent line and load regulation characteristics provide stable output voltage under varying conditions.
• High ripple rejection ratio minimizes the impact of input voltage fluctuations on the output.
• Thermal shutdown and current limit protection features safeguard the regulator and connected components.

Advantages

• Wide input voltage range allows for versatile applications.
• Low quiescent current ensures minimal power consumption during standby or idle states.
• Compact MSOP-8 package enables space-saving integration in various electronic devices.
• High accuracy and stability of the output voltage ensure reliable performance.

Disadvantages

• The maximum output current of 1.1A may not be sufficient for high-power applications.
• Limited pin configuration options may restrict certain circuit designs.

Working Principles

The LT1965EMS8E-3.3#TRPBF is a low dropout linear regulator that utilizes a PNP pass transistor to regulate the output voltage. It operates by comparing the feedback voltage with a reference voltage, adjusting the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized through the use of a low resistance pass element, allowing efficient regulation even when the input voltage is close to the desired output voltage.

Detailed Application Field Plans

The LT1965EMS8E-3.3#TRPBF finds application in various electronic systems, including but not limited to:

1. Battery-powered devices: Provides regulated voltage for microcontrollers, sensors, and other low-power components.
2. Automotive electronics: Ensures stable voltage supply for infotainment systems, lighting modules, and control units.
3. Industrial automation: Used in PLCs, motor drives, and sensor interfaces to maintain consistent voltage levels.
4. Communication equipment: Regulates voltage for routers, switches, and wireless access points, ensuring reliable operation.
5. Consumer electronics: Suitable for use in portable audio players, digital cameras, and handheld gaming devices.

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and pin configuration.
2. LT1763-3.3: Offers lower dropout voltage and higher output current compared to the LT1965EMS8E-3.3#TRPBF.
3. ADP3339-3.3: Provides high accuracy and low quiescent current, suitable for battery-powered applications.

These alternative models can be considered based on specific requirements and design constraints.

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