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MAX887HESA+T
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MAX887HESA+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: High Efficiency, Low Dropout, Low Quiescent Current
  • Package: 8-Pin SOIC (Small Outline Integrated Circuit)
  • Essence: Provides regulated output voltage for various electronic devices
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 2.5V to 6.5V
  • Output Voltage Range: 1.2V to 5.5V
  • Maximum Output Current: 150mA
  • Dropout Voltage: 120mV at 100mA
  • Quiescent Current: 40µA
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX887HESA+T has the following pin configuration:

  1. GND (Ground)
  2. IN (Input Voltage)
  3. EN (Enable)
  4. BYP (Bypass Capacitor)
  5. FB (Feedback)
  6. VOUT (Output Voltage)
  7. NC (No Connection)
  8. VCC (Supply Voltage)

Functional Features

  • High efficiency voltage regulation
  • Low dropout voltage ensures stable output even with low input voltage
  • Low quiescent current prolongs battery life
  • Enable pin for power management control
  • Bypass capacitor pin for improved noise performance
  • Feedback pin for adjustable output voltage

Advantages and Disadvantages

Advantages

  • High efficiency operation saves power
  • Wide input voltage range allows flexibility in design
  • Low dropout voltage ensures stable output even with low battery voltage
  • Low quiescent current extends battery life
  • Small package size saves board space

Disadvantages

  • Limited maximum output current (150mA)
  • Not suitable for high-power applications

Working Principles

The MAX887HESA+T is a voltage regulator IC that maintains a stable output voltage regardless of variations in input voltage or load conditions. It utilizes a feedback mechanism to adjust the internal circuitry and provide a constant output voltage. The enable pin allows for power management control, enabling the device to be turned on or off as needed.

Detailed Application Field Plans

The MAX887HESA+T is commonly used in various electronic devices that require a regulated power supply. Some typical application fields include:

  1. Battery-powered portable devices such as smartphones, tablets, and portable media players.
  2. Wearable devices like smartwatches and fitness trackers.
  3. IoT (Internet of Things) devices that operate on low power.
  4. Embedded systems and microcontroller-based projects.
  5. Automotive electronics for voltage regulation in car audio systems, infotainment systems, etc.

Detailed and Complete Alternative Models

  1. MAX8887EUT25+: Similar specifications with a fixed 2.5V output voltage.
  2. MAX8869EUE33+: Low quiescent current variant with a fixed 3.3V output voltage.
  3. MAX8890ETC+: Higher output current variant with adjustable output voltage.

These alternative models offer similar functionality but may have different output voltages or additional features based on specific requirements.

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技術ソリューションにおける MAX887HESA+T の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of MAX887HESA+T in technical solutions:

  1. Q: What is MAX887HESA+T? A: MAX887HESA+T is a high-efficiency, low-dropout linear regulator IC manufactured by Maxim Integrated. It is commonly used to provide regulated power supply in various electronic applications.

  2. Q: What is the input voltage range for MAX887HESA+T? A: The input voltage range for MAX887HESA+T is typically between 2.5V and 12V.

  3. Q: What is the output voltage range of MAX887HESA+T? A: The output voltage range of MAX887HESA+T can be adjusted from 1.25V to 11.8V using external resistors.

  4. Q: What is the maximum output current that MAX887HESA+T can provide? A: MAX887HESA+T can provide a maximum output current of 500mA.

  5. Q: Is MAX887HESA+T suitable for battery-powered applications? A: Yes, MAX887HESA+T is suitable for battery-powered applications as it has a low quiescent current and operates efficiently with low dropout voltage.

  6. Q: Can MAX887HESA+T handle overcurrent or short-circuit conditions? A: Yes, MAX887HESA+T has built-in overcurrent and short-circuit protection features to safeguard the device and the connected circuitry.

  7. Q: Does MAX887HESA+T have thermal shutdown protection? A: Yes, MAX887HESA+T incorporates thermal shutdown protection to prevent overheating and damage to the IC.

  8. Q: Can MAX887HESA+T operate in a wide temperature range? A: Yes, MAX887HESA+T is designed to operate in a wide temperature range, typically from -40°C to +85°C.

  9. Q: What type of package does MAX887HESA+T come in? A: MAX887HESA+T is available in an 8-pin small outline integrated circuit (SOIC) package.

  10. Q: Are there any application notes or reference designs available for MAX887HESA+T? A: Yes, Maxim Integrated provides application notes and reference designs that can help users understand and implement MAX887HESA+T in their technical solutions.

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