Maxim Integrated
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MAX772ESA
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MAX772ESA

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics:
    • High efficiency voltage regulator
    • Low dropout voltage
    • Small package size
    • Wide input voltage range
  • Package: SOIC-8
  • Essence: Voltage Regulator IC
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 2.5V to 5.5V
  • Output Voltage Range: 1.2V to 3.3V
  • Output Current: Up to 300mA
  • Dropout Voltage: 120mV at 100mA
  • Quiescent Current: 40µA
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX772ESA has a total of 8 pins in the following configuration:

  1. GND (Ground)
  2. IN (Input Voltage)
  3. EN (Enable)
  4. FB (Feedback)
  5. VOUT (Output Voltage)
  6. SW (Switch)
  7. NC (No Connection)
  8. GND (Ground)

Functional Features

  • High efficiency step-down voltage regulation
  • Low dropout voltage for improved power efficiency
  • Enable pin for easy on/off control
  • Feedback pin for adjustable output voltage
  • Overcurrent and thermal protection
  • Soft-start feature to minimize inrush current

Advantages

  • Compact package size allows for space-saving designs
  • Wide input voltage range accommodates various power sources
  • Low dropout voltage reduces power dissipation and extends battery life
  • Efficient voltage regulation ensures stable and reliable performance
  • Protection features enhance system reliability

Disadvantages

  • Limited output current may not be suitable for high-power applications
  • Lack of adjustable output voltage limits flexibility in certain designs

Working Principles

The MAX772ESA is a step-down voltage regulator IC that converts a higher input voltage to a lower output voltage. It utilizes a switching mechanism to achieve high efficiency and low dropout voltage. The enable pin allows for easy control of the regulator's operation, while the feedback pin enables adjustment of the output voltage. The IC also incorporates protection features such as overcurrent and thermal shutdown to safeguard the system.

Application Field Plans

The MAX772ESA is commonly used in various battery-powered devices, portable electronics, and low-power applications where efficient power management is crucial. Some specific application areas include:

  1. Mobile phones and smartphones
  2. Tablets and handheld gaming devices
  3. Portable media players
  4. Wearable devices
  5. IoT (Internet of Things) devices
  6. Battery-powered sensors and meters

Alternative Models

  1. MAX773ESA: Similar specifications and features, but with a different pin configuration (SOIC-8 package).
  2. MAX771ESA: Lower output current capability (up to 150mA), suitable for less power-demanding applications.
  3. MAX774ESA: Higher output current capability (up to 500mA), ideal for applications requiring more power.

Please note that the above alternative models are just a few examples, and there may be other alternatives available from different manufacturers.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MAX772ESA v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MAX772ESA in technical solutions:

  1. Q: What is MAX772ESA? A: MAX772ESA is a high-efficiency, low-quiescent current step-up DC-DC converter that provides a regulated output voltage from a single-cell Li+ battery or other power sources.

  2. Q: What is the input voltage range of MAX772ESA? A: The input voltage range of MAX772ESA is typically between 0.8V and 5.5V.

  3. Q: What is the output voltage range of MAX772ESA? A: The output voltage range of MAX772ESA can be set between 2.5V and 5.5V using external resistors.

  4. Q: What is the maximum output current of MAX772ESA? A: The maximum output current of MAX772ESA is typically 100mA.

  5. Q: Can MAX772ESA operate in shutdown mode? A: Yes, MAX772ESA can be put into shutdown mode by pulling the SHDN pin low, reducing the quiescent current to less than 1µA.

  6. Q: Is MAX772ESA suitable for battery-powered applications? A: Yes, MAX772ESA is designed for battery-powered applications where high efficiency and low quiescent current are important.

  7. Q: Does MAX772ESA have built-in protection features? A: Yes, MAX772ESA includes overcurrent protection, thermal shutdown, and undervoltage lockout (UVLO) to ensure safe operation.

  8. Q: Can MAX772ESA be used in portable devices like smartphones or tablets? A: Yes, MAX772ESA is commonly used in portable devices as a power supply solution for various components.

  9. Q: Can MAX772ESA be used in automotive applications? A: Yes, MAX772ESA is suitable for automotive applications that require a regulated power supply from a single-cell battery.

  10. Q: Are there any evaluation boards or reference designs available for MAX772ESA? A: Yes, Maxim Integrated provides evaluation kits and reference designs to help users quickly prototype and implement MAX772ESA in their applications.

Please note that the answers provided here are general and may vary depending on specific application requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.