LM4040D25ILP

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Precision voltage reference - Low dropout voltage - High accuracy and stability - Wide operating temperature range - Low quiescent current

Package: SOT-23-3

Essence: The LM4040D25ILP is a precision voltage reference IC that provides a stable and accurate output voltage. It is commonly used in various electronic circuits where a precise reference voltage is required.

Packaging/Quantity: The LM4040D25ILP is available in a SOT-23-3 package, which is a small surface-mount package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Output Voltage: 2.5V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 50ppm/°C
• Dropout Voltage: 60mV at 10mA
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM4040D25ILP has three pins:

1. VOUT: Output pin, provides the stable reference voltage of 2.5V.
2. GND: Ground pin, connected to the circuit's ground.
3. VIN: Input pin, connected to the power supply voltage.

Functional Features

• Precise Voltage Reference: The LM4040D25ILP provides a highly accurate and stable output voltage of 2.5V, making it suitable for applications requiring precise voltage references.
• Low Dropout Voltage: With a low dropout voltage of only 60mV at 10mA, the LM4040D25ILP can operate efficiently even with low input voltages.
• Low Quiescent Current: The IC has a low quiescent current of 60µA, minimizing power consumption in battery-powered applications.
• Wide Operating Temperature Range: The LM4040D25ILP can operate reliably in a wide temperature range from -40°C to +85°C, making it suitable for various environmental conditions.

Advantages and Disadvantages

Advantages: - High accuracy and stability - Low dropout voltage - Low quiescent current - Wide operating temperature range

Disadvantages: - Limited output voltage options (only 2.5V)

Working Principles

The LM4040D25ILP utilizes a bandgap reference circuit to generate a stable and accurate output voltage. It compensates for temperature variations by using a temperature-dependent current source and a voltage divider network. This ensures that the output voltage remains constant over a wide temperature range.

Detailed Application Field Plans

The LM4040D25ILP is commonly used in various electronic circuits that require a precise voltage reference. Some typical application fields include:

1. Analog-to-Digital Converters (ADCs)
2. Digital-to-Analog Converters (DACs)
3. Voltage regulators
4. Oscillators and timers
5. Sensor interfaces
6. Battery management systems

Detailed and Complete Alternative Models

1. LM4040AIM3-2.5/NOPB: Similar to LM4040D25ILP, but available in a SOT-23 package.
2. LT1004CZ-2.5#PBF: Precision voltage reference with an output voltage of 2.5V, available in a TO-92 package.
3. MAX6102EUR-T: Ultra-low-power voltage reference with an output voltage of 2.5V, available in a SOT-23 package.

These alternative models offer similar functionality and characteristics to the LM4040D25ILP and can be used as replacements in various applications.

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