Rohm Semiconductor
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BU21025GUL-E2
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BU21025GUL-E2

Product Overview

Category: Integrated Circuit
Use: Power Management IC
Characteristics: Low power consumption, high efficiency
Package: 8-pin SOIC
Essence: Regulates and manages power supply
Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage: 3V to 5.5V
  • Output Voltage: 1.2V to 3.3V
  • Output Current: Up to 2A
  • Efficiency: Up to 95%
  • Operating Temperature: -40°C to 85°C

Detailed Pin Configuration

  1. VIN (Input Voltage)
  2. GND (Ground)
  3. EN (Enable)
  4. FB (Feedback)
  5. SW (Switch)
  6. GND (Ground)
  7. PG (Power Good)
  8. VOUT (Output Voltage)

Functional Features

  • Wide input voltage range
  • Adjustable output voltage
  • Overcurrent protection
  • Thermal shutdown protection
  • Power good indicator

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Compact package size

Disadvantages: - Limited output current compared to some alternatives - Sensitive to external noise in certain applications

Working Principles

BU21025GUL-E2 is a step-down DC-DC converter that regulates the input voltage to a lower, stable output voltage. It uses pulse-width modulation (PWM) to control the output voltage based on the feedback from the FB pin. The enable pin (EN) allows for easy power management by enabling or disabling the device as needed.

Detailed Application Field Plans

This product is ideal for various battery-powered applications such as portable devices, IoT devices, and handheld instruments. It can also be used in point-of-load regulation for larger systems where space and efficiency are critical.

Detailed and Complete Alternative Models

  • Alternative Model 1: BU21024GUL-E2

    • Similar specifications and features
    • Different package size

  • Alternative Model 2: BU21026GUL-E2

    • Higher output current
    • Slightly larger footprint

In conclusion, BU21025GUL-E2 is a versatile power management IC with a wide range of applications, offering high efficiency and compact design. While it has some limitations in terms of output current and sensitivity to external noise, it provides an excellent solution for many low-power electronic devices.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av BU21025GUL-E2 i tekniska lösningar

  1. What is the BU21025GUL-E2?

    • The BU21025GUL-E2 is a high-speed, low-power dual operational amplifier designed for use in a wide range of technical solutions.

  2. What are the key features of the BU21025GUL-E2?

    • The BU21025GUL-E2 features a wide supply voltage range, low input bias current, and high slew rate, making it suitable for various technical applications.

  3. What are the typical applications of the BU21025GUL-E2?

    • Typical applications include active filters, integrators, differential amplifiers, and precision instrumentation.

  4. What is the operating voltage range of the BU21025GUL-E2?

    • The operating voltage range is typically between ±2V to ±18V, making it versatile for different power supply configurations.

  5. What is the input bias current of the BU21025GUL-E2?

    • The input bias current is typically low, which is beneficial for applications requiring high input impedance and minimal offset voltage.

  6. Does the BU21025GUL-E2 have thermal shutdown protection?

    • No, the BU21025GUL-E2 does not have built-in thermal shutdown protection.

  7. Can the BU21025GUL-E2 be used in audio amplifier circuits?

    • Yes, the BU21025GUL-E2 can be utilized in audio amplifier circuits due to its high-speed performance and low distortion characteristics.

  8. What is the recommended operating temperature range for the BU21025GUL-E2?

    • The recommended operating temperature range is typically between -40°C to 125°C, ensuring reliable performance in various environments.

  9. Is the BU21025GUL-E2 suitable for battery-powered devices?

    • Yes, the low-power consumption and wide supply voltage range make the BU21025GUL-E2 well-suited for battery-powered devices and portable applications.

  10. Are there any application notes or reference designs available for the BU21025GUL-E2?

    • Yes, the manufacturer provides comprehensive application notes and reference designs to assist engineers in implementing the BU21025GUL-E2 in their technical solutions.