ADP1111ARZ-3.3

Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low dropout, high accuracy, low quiescent current
• Package: TO-252-3 (DPAK)
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape and Reel / 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 3.3V
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 50µA
• Load Regulation: ±0.5%
• Line Regulation: ±0.2%
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The ADP1111ARZ-3.3 has a total of three pins in the TO-252-3 package: 1. Pin 1: VIN (Input Voltage) 2. Pin 2: GND (Ground) 3. Pin 3: VOUT (Output Voltage)

Functional Features

• Low dropout voltage allows for efficient regulation even with small input-output differentials.
• High accuracy ensures precise output voltage regulation.
• Low quiescent current minimizes power consumption when the load is light.
• Short-circuit protection safeguards the IC and connected components from damage.

Advantages

• Wide input voltage range enables compatibility with various power sources.
• Excellent load and line regulation provide stable output voltage under different conditions.
• Compact TO-252-3 package allows for easy integration into space-constrained applications.
• Low quiescent current prolongs battery life in portable devices.

Disadvantages

• Limited output current capability may not be suitable for high-power applications.
• Dropout voltage may cause some power loss in low input-output differential scenarios.
• Temperature limitations restrict usage in extreme environments.

Working Principles

The ADP1111ARZ-3.3 is a linear voltage regulator that maintains a constant output voltage regardless of changes in the input voltage or load conditions. It achieves this by using a pass transistor to regulate the output voltage based on a feedback mechanism. The internal circuitry compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The ADP1111ARZ-3.3 is commonly used in various electronic devices and systems, including: - Battery-powered devices such as portable audio players and handheld instruments. - Automotive applications for voltage regulation in vehicle electronics. - Industrial equipment requiring stable power supply for control circuits. - Communication systems for voltage regulation in transceivers and base stations. - Consumer electronics like set-top boxes, routers, and gaming consoles.

Alternative Models

For those seeking alternative options, the following models provide similar functionality: - LM1117-3.3: Low dropout voltage regulator with adjustable output voltage. - LT1763-3.3: High accuracy LDO regulator with ultra-low dropout voltage. - TPS79633: Low quiescent current, high PSRR (Power Supply Rejection Ratio) regulator.

Please note that these alternatives may have different package types, pin configurations, or additional features. It is recommended to consult the respective datasheets for detailed specifications and compatibility.

Word count: 408 words