LT1937ESC6#TRPBF

Product Overview

Category

The LT1937ESC6#TRPBF belongs to the category of integrated circuits (ICs) and specifically falls under the voltage regulators category.

Use

This product is primarily used for voltage regulation in various electronic devices and systems.

Characteristics

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 0.8V to 14V
• Maximum Output Current: 1.5A
• Efficiency: Up to 95%
• Package Type: SOT-23-6
• Operating Temperature Range: -40°C to 125°C

Package and Quantity

The LT1937ESC6#TRPBF is available in a SOT-23-6 package. It is typically sold in reels or tubes containing a specific quantity, such as 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 0.8V to 14V
• Maximum Output Current: 1.5A
• Quiescent Current: 60µA
• Switching Frequency: 1.2MHz
• Dropout Voltage: 300mV at 1A
• Line Regulation: ±0.02% / V
• Load Regulation: ±0.02% / A
• Ripple Rejection: 75dB
• Shutdown Current: 1µA

Detailed Pin Configuration

The LT1937ESC6#TRPBF has six pins arranged as follows:

```

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| | --| VIN GND |-- Pin 1 --| SW FB |-- Pin 2 --| PGND EN |-- Pin 3 |___________| ```

1. VIN: Input voltage pin.
2. GND: Ground pin.
3. SW: Switching node pin.
4. FB: Feedback pin for output voltage regulation.
5. PGND: Power ground pin.
6. EN: Enable pin for turning the regulator on or off.

Functional Features

• Wide input voltage range allows for versatile applications.
• High efficiency ensures minimal power loss during voltage regulation.
• Low dropout voltage enables operation with small voltage differentials.
• Fast transient response for quick and accurate voltage regulation.
• Built-in protection features such as thermal shutdown and current limit.

Advantages and Disadvantages

Advantages

• Wide input voltage range provides flexibility in various applications.
• High efficiency results in reduced power consumption.
• Compact SOT-23-6 package allows for space-saving designs.
• Fast transient response ensures stable voltage output during load changes.

Disadvantages

• Limited maximum output current of 1.5A may not be suitable for high-power applications.
• Dropout voltage of 300mV may restrict usage in low-voltage scenarios.

Working Principles

The LT1937ESC6#TRPBF is a step-down (buck) voltage regulator that operates by converting a higher input voltage to a lower output voltage. It utilizes a switching mechanism to efficiently regulate the output voltage while minimizing power dissipation.

The regulator employs a feedback loop to continuously monitor the output voltage and adjust the duty cycle of the internal switch accordingly. This control mechanism ensures that the output voltage remains within the desired range, even under varying load conditions.

Detailed Application Field Plans

The LT1937ESC6#TRPBF can be applied in various electronic systems and devices, including but not limited to: - Battery-powered portable devices - Industrial automation equipment - Automotive electronics - Telecommunications infrastructure - Consumer electronics

Detailed and Complete Alternative Models

1. LM2576T-ADJ: Adjustable voltage regulator with a maximum output current of 3A.
2. LT1763CS8-3.3: Fixed 3.3V voltage regulator with low dropout voltage and high accuracy.
3. LM1117MPX-5.0: Fixed 5.0V voltage regulator with thermal shutdown protection.

These alternative models offer similar functionality to the LT1937ESC6#TRPBF and can be considered based on specific application requirements.

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