LT1764AEQ#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, High PSRR, Low Noise
• Package: 3mm x 3mm DFN-8
• Essence: Linear Technology's LT1764AEQ#TRPBF is a high-performance low dropout voltage regulator designed for various applications.
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 20V
• Output Voltage Range: 1.21V to 15V
• Dropout Voltage: 300mV at 1A Load Current
• Quiescent Current: 45µA
• Line Regulation: ±0.02%
• Load Regulation: ±0.04%
• PSRR: 70dB at 1kHz
• Noise: 30µVRMS (10Hz to 100kHz)
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT1764AEQ#TRPBF has the following pin configuration:

1. VIN: Input Voltage Pin
2. GND: Ground Pin
3. ADJ: Output Voltage Adjustment Pin
4. NC: No Connection
5. NC: No Connection
6. NC: No Connection
7. VOUT: Output Voltage Pin
8. NC: No Connection

Functional Features

• Low dropout voltage allows operation with very small input-output differentials.
• High power supply rejection ratio (PSRR) ensures stable output voltage even in noisy environments.
• Low output noise makes it suitable for noise-sensitive applications.
• Excellent line and load regulation provide precise output voltage control.
• Current limit and thermal shutdown protection ensure safe operation.

Advantages

• Wide input voltage range allows flexibility in various applications.
• Low dropout voltage minimizes power dissipation and extends battery life.
• High PSRR ensures stable performance in noisy environments.
• Low output noise makes it suitable for audio and sensitive electronic devices.
• Compact package size enables space-saving designs.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Higher cost compared to some other voltage regulators in the market.
• Requires external capacitors for stability, adding complexity to the circuit design.

Working Principles

The LT1764AEQ#TRPBF is a linear voltage regulator that uses a PNP pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage obtained from the output. The pass transistor adjusts its resistance to maintain a constant output voltage despite changes in input voltage and load conditions.

Detailed Application Field Plans

The LT1764AEQ#TRPBF can be used in various applications, including but not limited to:

1. Battery-powered devices: Portable electronics, handheld instruments, etc.
2. Automotive electronics: Infotainment systems, navigation systems, etc.
3. Industrial equipment: Sensors, control systems, etc.
4. Communication systems: Wireless routers, base stations, etc.
5. Audio equipment: Amplifiers, DACs, etc.

Detailed and Complete Alternative Models

1. LM1117-ADJ: Adjustable Voltage Regulator, TO-220 Package
2. MAX603CPA: Precision Voltage Reference, DIP-8 Package
3. ADP3339AKCZ-3.3-R7: Low Dropout Voltage Regulator, SOT-223 Package
4. TPS79633DCQR: Ultra-Low Noise LDO Voltage Regulator, VSON-10 Package
5. LT3080EDD: Adjustable Linear Regulator, DFN-12 Package

These alternative models offer similar functionality and can be considered as substitutes for the LT1764AEQ#TRPBF in different applications.

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