MAX6861UK28+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Low Quiescent Current, Adjustable Output Voltage
• Package: SOT-23-5
• Essence: Linear Regulator
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 1.2V to 3.6V
• Dropout Voltage: 120mV at 150mA
• Quiescent Current: 40µA
• Output Current: 150mA
• Line Regulation: ±0.05% typical
• Load Regulation: ±0.1% typical
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6861UK28+T has a total of five pins:

1. GND: Ground pin.
2. IN: Input voltage pin.
3. FB: Feedback pin for adjusting the output voltage.
4. EN: Enable pin for turning the regulator on/off.
5. OUT: Output voltage pin.

Functional Features

• Low dropout voltage allows for efficient regulation even with small input-output differentials.
• Low quiescent current ensures minimal power consumption during standby or idle modes.
• Adjustable output voltage provides flexibility in various applications.
• Excellent line and load regulation characteristics ensure stable output voltage under varying conditions.
• Thermal shutdown and current limit protection features enhance device reliability.

Advantages and Disadvantages

Advantages

• Compact SOT-23-5 package enables space-saving designs.
• Wide input voltage range accommodates various power sources.
• Low dropout voltage minimizes power dissipation.
• Adjustable output voltage suits different system requirements.
• Excellent line and load regulation ensures stable performance.

Disadvantages

• Limited output current of 150mA may not be sufficient for high-power applications.
• SOT-23-5 package may require additional thermal management for dissipating heat.

Working Principles

The MAX6861UK28+T is a linear regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB) with a reference voltage, and adjusts the pass transistor accordingly to maintain a stable output voltage. The enable pin (EN) allows the user to turn the regulator on or off as needed.

Detailed Application Field Plans

The MAX6861UK28+T is suitable for a wide range of applications, including but not limited to:

1. Battery-powered devices: Portable electronics, handheld instruments, and wireless sensors.
2. Consumer electronics: Smartphones, tablets, digital cameras, and portable media players.
3. Industrial equipment: Data loggers, measurement devices, and control systems.
4. Automotive electronics: Infotainment systems, navigation units, and dashboard displays.
5. IoT devices: Wearables, smart home devices, and connected sensors.

Detailed and Complete Alternative Models

1. MAX6860: Fixed output voltage version of MAX6861UK28+T.
2. MAX6862: Higher output current version of MAX6861UK28+T.
3. MAX6863: Dual-output voltage regulator with adjustable outputs.
4. MAX6864: Low quiescent current version of MAX6861UK28+T.

These alternative models offer similar functionality with slight variations in specifications to cater to different application requirements.

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