LF27CDT-TR

Product Overview

Category

LF27CDT-TR belongs to the category of integrated voltage regulators.

Use

It is primarily used for regulating and stabilizing voltage in electronic circuits.

Characteristics

• Compact size
• High efficiency
• Low dropout voltage
• Wide input voltage range
• Overcurrent and thermal protection

Package

LF27CDT-TR is available in a TO-252 package, also known as DPAK (Discrete Package).

Essence

The essence of LF27CDT-TR lies in its ability to provide a stable output voltage despite fluctuations in the input voltage.

Packaging/Quantity

LF27CDT-TR is typically packaged in reels containing 2,500 units.

Specifications

• Input Voltage Range: 4.5V to 20V
• Output Voltage Range: 1.2V to 18V
• Maximum Output Current: 1A
• Dropout Voltage: 0.45V at 1A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

LF27CDT-TR has three pins:

1. VIN (Pin 1): Input voltage pin.
2. VOUT (Pin 2): Output voltage pin.
3. GND (Pin 3): Ground pin.

Functional Features

• Voltage regulation: LF27CDT-TR ensures a constant output voltage regardless of input voltage variations.
• Overcurrent protection: It safeguards the circuit by limiting the output current during excessive load conditions.
• Thermal protection: The regulator automatically shuts down if the temperature exceeds the safe operating limit.

Advantages and Disadvantages

Advantages

• Small form factor allows for easy integration into compact designs.
• High efficiency results in minimal power dissipation.
• Wide input voltage range enables compatibility with various power sources.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Dropout voltage can affect the efficiency of the regulator in low input voltage scenarios.

Working Principles

LF27CDT-TR utilizes a combination of internal circuitry and feedback mechanisms to maintain a stable output voltage. It compares the reference voltage with the feedback voltage and adjusts the internal pass transistor accordingly to regulate the output voltage.

Detailed Application Field Plans

LF27CDT-TR finds applications in various electronic devices, including but not limited to: - Mobile phones - Tablets - Portable audio players - Digital cameras - Wireless communication devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to LF27CDT-TR are: - LM317T - LT1086 - LM1117-ADJ - NCP1117

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

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