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MAX8739ETP+
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MAX8739ETP+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High-efficiency, synchronous step-down DC-DC converter - Provides a compact and efficient solution for various power management applications - Designed to deliver high current output with minimal external components

Package: TQFN-20 (Thin Quad Flat No-Lead) package

Essence: The MAX8739ETP+ is a power management IC that integrates a high-efficiency, synchronous step-down DC-DC converter. It is widely used in various electronic devices to efficiently regulate and distribute power.

Packaging/Quantity: The MAX8739ETP+ is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

  • Input Voltage Range: 2.7V to 5.5V
  • Output Voltage Range: 0.6V to VIN
  • Maximum Output Current: 3A
  • Switching Frequency: 1MHz
  • Efficiency: Up to 95%
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8739ETP+ has a total of 20 pins. Here is the detailed pin configuration:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. SW: Switching node connection for the internal MOSFETs
  4. FB: Feedback pin for regulating the output voltage
  5. EN: Enable pin for turning the device on/off
  6. SS/TRK: Soft-start/tracking pin for controlling the start-up behavior
  7. PGND: Power ground pin
  8. LX: Inductor connection pin
  9. VCC: Internal bias voltage input pin
  10. BST: Boost capacitor connection pin
  11. AGND: Analog ground pin
  12. COMP: Compensation pin for stability control
  13. SS/TRK: Soft-start/tracking pin for controlling the start-up behavior
  14. PGND: Power ground pin
  15. LX: Inductor connection pin
  16. VCC: Internal bias voltage input pin
  17. BST: Boost capacitor connection pin
  18. AGND: Analog ground pin
  19. COMP: Compensation pin for stability control
  20. FB: Feedback pin for regulating the output voltage

Functional Features

  • High-efficiency synchronous step-down DC-DC converter
  • Integrated power MOSFETs for reduced external component count
  • Adjustable output voltage through feedback pin (FB)
  • Enable pin (EN) for easy on/off control
  • Soft-start/tracking pin (SS/TRK) for controlled start-up behavior
  • Overcurrent protection and thermal shutdown features for enhanced safety

Advantages and Disadvantages

Advantages: - High efficiency, leading to reduced power consumption - Compact size and minimal external components required - Wide input voltage range for versatile applications - Overcurrent protection and thermal shutdown for improved safety

Disadvantages: - Limited maximum output current of 3A - Operating temperature range may not be suitable for extreme environments

Working Principles

The MAX8739ETP+ operates as a synchronous step-down DC-DC converter. It takes an input voltage within the range of 2.7V to 5.5V and efficiently steps it down to a lower output voltage, adjustable between 0.6V and the input voltage. The integrated power MOSFETs ensure high efficiency by minimizing power losses.

The device uses a feedback mechanism to regulate the output voltage, allowing for precise voltage control. The enable pin enables easy on/off control of the device, while the soft-start/tracking pin controls the start-up behavior, ensuring a smooth and controlled power-up sequence.

Detailed Application Field Plans

The MAX8739ETP+ finds applications in various electronic devices that require efficient power management. Some of the common application fields include:

  1. Mobile Devices: Smartphones, tablets, portable media players
  2. Portable Gaming Consoles: Handheld gaming devices
  3. Wearable Electronics: Smartwatches, fitness trackers
  4. IoT Devices: Internet of Things devices, sensors, smart home devices
  5. Industrial Equipment: Battery-powered equipment, control systems

Detailed and Complete Alternative Models

  1. MAX8739ETI+: Similar to MAX8739ETP+, but available in a TQFN-28 package with additional features such as adjustable switching frequency.
  2. MAX8739ETJ+: Higher maximum output current of 5A, suitable for applications requiring higher power delivery.
  3. MAX8739ETR+: Available in a smaller TQFN-16 package, ideal for space-constrained designs.

These alternative models offer similar functionality to the MAX8739ETP+ but may have different package options, improved specifications, or

기술 솔루션에 MAX8739ETP+ 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of MAX8739ETP+ in technical solutions:

  1. Q: What is MAX8739ETP+? A: MAX8739ETP+ is a highly integrated power management IC (PMIC) designed for use in portable devices such as smartphones, tablets, and other battery-powered applications.

  2. Q: What are the key features of MAX8739ETP+? A: The key features of MAX8739ETP+ include multiple voltage regulators, battery charger, power switches, and protection circuits, all integrated into a single chip.

  3. Q: How many voltage regulators are there in MAX8739ETP+? A: MAX8739ETP+ has three high-efficiency step-down voltage regulators, which can provide different output voltages required by various components in the system.

  4. Q: Can MAX8739ETP+ charge the battery while the device is powered on? A: Yes, MAX8739ETP+ includes a battery charger circuit that can charge the battery while the device is powered on, allowing continuous operation.

  5. Q: Does MAX8739ETP+ have any protection features? A: Yes, MAX8739ETP+ incorporates various protection features such as overvoltage protection (OVP), undervoltage lockout (UVLO), thermal shutdown, and short-circuit protection.

  6. Q: What is the input voltage range supported by MAX8739ETP+? A: MAX8739ETP+ supports an input voltage range from 2.7V to 5.5V, making it compatible with a wide range of power sources.

  7. Q: Can MAX8739ETP+ operate at low power levels? A: Yes, MAX8739ETP+ has a low quiescent current and can operate in low-power modes to maximize battery life in portable devices.

  8. Q: Is MAX8739ETP+ programmable? A: No, MAX8739ETP+ is not programmable. It operates based on its internal circuitry and does not require any external programming.

  9. Q: Can MAX8739ETP+ be used in automotive applications? A: No, MAX8739ETP+ is not specifically designed for automotive applications. It is primarily intended for portable consumer electronic devices.

  10. Q: Are evaluation boards or reference designs available for MAX8739ETP+? A: Yes, Maxim Integrated provides evaluation boards and reference designs that can help engineers quickly prototype and integrate MAX8739ETP+ into their systems.

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