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RT9043GB
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RT9043GB

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Overcurrent protection - Short circuit protection

Package: SOT-23-5

Essence: The RT9043GB is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The RT9043GB is available in tape and reel packaging, with 3000 units per reel.

Specifications

  • Input Voltage Range: 2.5V to 5.5V
  • Output Voltage Range: 1.2V to 3.6V
  • Dropout Voltage: 200mV at 300mA
  • Output Current: Up to 300mA
  • Quiescent Current: 60μA
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The RT9043GB has the following pin configuration:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. EN: Enable pin (active high)
  4. FB: Feedback pin for adjusting the output voltage
  5. VOUT: Output voltage pin

Functional Features

  • Low dropout voltage ensures efficient power conversion.
  • High output current capability allows for powering a wide range of devices.
  • Adjustable output voltage enables customization for specific applications.
  • Thermal shutdown protection prevents overheating of the IC.
  • Overcurrent protection safeguards against excessive current flow.
  • Short circuit protection prevents damage in case of a short circuit.

Advantages and Disadvantages

Advantages: - Compact SOT-23-5 package for space-constrained designs. - Wide input voltage range for compatibility with different power sources. - Low quiescent current for power-saving applications. - Excellent line and load regulation for stable output voltage.

Disadvantages: - Limited output current compared to higher-power regulators. - Requires external components for proper operation.

Working Principles

The RT9043GB is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB) with a reference voltage, adjusting the pass transistor's resistance to maintain a stable output voltage. The enable pin (EN) controls the regulator's on/off state.

Detailed Application Field Plans

The RT9043GB is commonly used in various electronic devices that require a stable and adjustable voltage supply. Some typical application fields include:

  1. Mobile devices: Smartphones, tablets, portable media players.
  2. Wireless communication systems: Wi-Fi modules, Bluetooth devices.
  3. Battery-powered devices: Portable gaming consoles, digital cameras.
  4. Industrial equipment: Sensors, control systems, measurement devices.
  5. Automotive electronics: Infotainment systems, navigation units.

Detailed and Complete Alternative Models

  1. RT9018GB: Similar voltage regulator IC with a lower dropout voltage.
  2. RT9050GB: Higher-output current version of the RT9043GB.
  3. RT9025GB: Fixed output voltage version of the RT9043GB.

These alternative models offer similar functionality and can be considered as substitutes for the RT9043GB in specific applications.

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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät RT9043GB :n soveltamiseen teknisissä ratkaisuissa

  1. What is the maximum input voltage for RT9043GB?
    - The maximum input voltage for RT9043GB is 18V.

  2. What is the typical output current of RT9043GB?
    - The typical output current of RT9043GB is 3A.

  3. Can RT9043GB operate in a wide temperature range?
    - Yes, RT9043GB can operate in a wide temperature range from -40°C to 85°C.

  4. Is RT9043GB suitable for battery-powered applications?
    - Yes, RT9043GB is suitable for battery-powered applications due to its low dropout voltage.

  5. Does RT9043GB have built-in thermal shutdown protection?
    - Yes, RT9043GB has built-in thermal shutdown protection to prevent overheating.

  6. What type of package does RT9043GB come in?
    - RT9043GB comes in a compact and space-saving WDFN-8L 2x2mm package.

  7. Can RT9043GB be used in automotive electronics?
    - Yes, RT9043GB is AEC-Q100 qualified and suitable for automotive electronics applications.

  8. What is the typical quiescent current of RT9043GB?
    - The typical quiescent current of RT9043GB is 45μA.

  9. Is RT9043GB compatible with ceramic output capacitors?
    - Yes, RT9043GB is compatible with ceramic output capacitors, providing design flexibility.

  10. Does RT9043GB support adjustable output voltage?
    - Yes, RT9043GB supports adjustable output voltage through external resistors, allowing for customization in technical solutions.