Maxim Integrated
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MAX846AEEE+T
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MAX846AEEE+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Low Power Consumption
  • Package: 16-pin QSOP (Quarter Small Outline Package)
  • Essence: Voltage Regulator
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 2.7V to 5.5V
  • Output Voltage Range: 1.8V to 3.3V
  • Maximum Output Current: 500mA
  • Dropout Voltage: 120mV at 100mA
  • Quiescent Current: 40µA
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX846AEEE+T has a 16-pin QSOP package with the following pin configuration:

  1. VOUT
  2. GND
  3. FB
  4. EN
  5. SS
  6. COMP
  7. VCC
  8. PGND
  9. PGND
  10. PGND
  11. PGND
  12. PGND
  13. PGND
  14. PGND
  15. PGND
  16. VIN

Functional Features

  • High Efficiency: The MAX846AEEE+T offers high efficiency power conversion, minimizing energy loss.
  • Low Power Consumption: With a quiescent current of only 40µA, it ensures minimal power consumption during standby or low-load conditions.
  • Enable Control (EN): The EN pin allows for easy on/off control of the voltage regulator.
  • Soft-Start (SS): The SS pin enables a controlled startup sequence, preventing excessive inrush current.
  • Error Amplifier (COMP): The COMP pin provides feedback for precise voltage regulation.

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Low power consumption during standby - Enable control for easy on/off operation - Soft-start feature prevents excessive inrush current - Precise voltage regulation

Disadvantages: - Limited maximum output current (500mA)

Working Principles

The MAX846AEEE+T is a voltage regulator that converts an input voltage within the range of 2.7V to 5.5V to a regulated output voltage between 1.8V and 3.3V. It achieves high efficiency by minimizing energy loss during the conversion process. The enable control allows for easy on/off operation, while the soft-start feature ensures a controlled startup sequence, preventing excessive inrush current. The error amplifier provides feedback for precise voltage regulation.

Detailed Application Field Plans

The MAX846AEEE+T finds applications in various fields, including:

  1. Portable Electronics: It can be used in smartphones, tablets, and portable gaming devices to regulate the voltage for different components.
  2. IoT Devices: The voltage regulator is suitable for IoT devices such as sensors, wearables, and smart home devices, ensuring stable power supply.
  3. Industrial Automation: It can be employed in industrial automation systems to regulate voltage for control circuits and sensors.
  4. Automotive Electronics: The MAX846AEEE+T can be utilized in automotive electronics for voltage regulation in infotainment systems, lighting, and other components.

Detailed and Complete Alternative Models

  1. LM1117-3.3: This voltage regulator offers similar specifications and pin configuration to the MAX846AEEE+T.
  2. LT1763-3.3: Another alternative with comparable characteristics and pin configuration.
  3. TPS79633: This IC provides a regulated output voltage of 3.3V and has a similar package and pin configuration.

These alternative models can be considered based on specific requirements and availability.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af MAX846AEEE+T i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of MAX846AEEE+T in technical solutions:

1. What is the MAX846AEEE+T? The MAX846AEEE+T is a voltage supervisor IC (integrated circuit) that monitors the power supply voltage and provides reset signals to the microcontroller or other digital devices.

2. What is the operating voltage range of MAX846AEEE+T? The operating voltage range of MAX846AEEE+T is typically between 1.6V and 5.5V.

3. How does MAX846AEEE+T provide reset signals? MAX846AEEE+T provides reset signals by asserting the RESET output low when the monitored voltage drops below a specified threshold.

4. Can I use MAX846AEEE+T with different microcontrollers? Yes, MAX846AEEE+T can be used with various microcontrollers as long as the operating voltage range of the microcontroller falls within the operating voltage range of the IC.

5. What is the purpose of the manual reset input pin on MAX846AEEE+T? The manual reset input pin allows an external signal to force a reset condition, overriding the internal monitoring circuitry.

6. Is MAX846AEEE+T suitable for battery-powered applications? Yes, MAX846AEEE+T is suitable for battery-powered applications as it operates within a wide voltage range and has low quiescent current consumption.

7. Can I adjust the threshold voltage for the reset signal? No, the threshold voltage for the reset signal is fixed and cannot be adjusted in MAX846AEEE+T.

8. Does MAX846AEEE+T have any built-in delay for the reset signal? Yes, MAX846AEEE+T has a fixed delay of approximately 200ms for the reset signal to ensure stable power supply before releasing the reset condition.

9. What is the maximum output current capability of MAX846AEEE+T? The maximum output current capability of MAX846AEEE+T is typically 20mA, which is sufficient for driving most microcontrollers.

10. Can I use MAX846AEEE+T in automotive applications? Yes, MAX846AEEE+T is suitable for automotive applications as it meets the necessary requirements such as wide operating voltage range and temperature range.

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