Maxim Integrated
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MAX8840ELT40+T
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MAX8840ELT40+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Low Quiescent Current, Small Package Size
  • Package: 6-Pin Thin SOT23
  • Essence: Voltage Regulator
  • Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

  • Input Voltage Range: 2.7V to 5.5V
  • Output Voltage: 4.0V
  • Output Current: Up to 150mA
  • Quiescent Current: 17µA (typical)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

  1. GND: Ground connection
  2. EN: Enable pin for turning the regulator on/off
  3. FB: Feedback pin for setting the output voltage
  4. NC: No Connection
  5. VOUT: Output voltage pin
  6. VIN: Input voltage pin

Functional Features

  • High efficiency voltage regulation
  • Low quiescent current for power-saving applications
  • Thermal shutdown protection
  • Short-circuit and overcurrent protection
  • Fast transient response

Advantages

  • Compact package size allows for space-constrained designs
  • Wide input voltage range enables compatibility with various power sources
  • Low quiescent current prolongs battery life in portable devices
  • Efficient voltage regulation reduces power dissipation and heat generation

Disadvantages

  • Limited output current may not be suitable for high-power applications
  • Fixed output voltage may not be adjustable for specific requirements

Working Principles

The MAX8840ELT40+T is a voltage regulator IC that provides a fixed output voltage of 4.0V from an input voltage range of 2.7V to 5.5V. It utilizes a feedback mechanism to maintain the desired output voltage by adjusting the internal circuitry. The regulator operates in a low quiescent current mode, minimizing power consumption when the load is light. It also incorporates various protection features such as thermal shutdown, short-circuit, and overcurrent protection.

Detailed Application Field Plans

The MAX8840ELT40+T is commonly used in battery-powered devices, portable electronics, and other applications where efficient power management is crucial. Some specific application areas include:

  1. Mobile phones
  2. Tablets and laptops
  3. Portable media players
  4. Wearable devices
  5. IoT (Internet of Things) devices
  6. Medical devices
  7. Industrial equipment

Detailed and Complete Alternative Models

  • MAX8840ELT30+T: Output voltage of 3.0V
  • MAX8840ELT33+T: Output voltage of 3.3V
  • MAX8840ELT50+T: Output voltage of 5.0V
  • MAX8840ELT60+T: Output voltage of 6.0V

These alternative models provide different fixed output voltages to cater to specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MAX8840ELT40+T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MAX8840ELT40+T in technical solutions:

  1. Q: What is the MAX8840ELT40+T? A: The MAX8840ELT40+T is a low-dropout linear regulator (LDO) IC that provides a regulated output voltage for various electronic devices.

  2. Q: What is the input voltage range of the MAX8840ELT40+T? A: The input voltage range of the MAX8840ELT40+T is typically between 2.5V and 6.5V.

  3. Q: What is the output voltage range of the MAX8840ELT40+T? A: The output voltage range of the MAX8840ELT40+T is adjustable from 0.8V to 5.5V using external resistors.

  4. Q: What is the maximum output current of the MAX8840ELT40+T? A: The maximum output current of the MAX8840ELT40+T is 500mA.

  5. Q: What is the dropout voltage of the MAX8840ELT40+T? A: The dropout voltage of the MAX8840ELT40+T is typically 120mV at 100mA load current.

  6. Q: Can the MAX8840ELT40+T operate in a wide temperature range? A: Yes, the MAX8840ELT40+T can operate in a temperature range of -40°C to +85°C.

  7. Q: Does the MAX8840ELT40+T have built-in thermal shutdown protection? A: Yes, the MAX8840ELT40+T has built-in thermal shutdown protection to prevent overheating.

  8. Q: Can the MAX8840ELT40+T be used in battery-powered applications? A: Yes, the low quiescent current and low dropout voltage of the MAX8840ELT40+T make it suitable for battery-powered applications.

  9. Q: Does the MAX8840ELT40+T have short-circuit protection? A: Yes, the MAX8840ELT40+T has built-in short-circuit protection to prevent damage in case of a short circuit.

  10. Q: What package does the MAX8840ELT40+T come in? A: The MAX8840ELT40+T is available in a 6-pin SOT23 package, which is small and suitable for space-constrained designs.

Please note that these answers are general and may vary depending on the specific datasheet and application requirements.