MAX8890ETCJJJ+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency voltage regulator - Low dropout voltage - Small package size - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection

Package: TQFN-10 (Thin Quad Flat No-Lead), 3mm x 3mm

Essence: The MAX8890ETCJJJ+ is a power management integrated circuit designed to regulate voltage efficiently with low dropout. It is commonly used in electronic devices to provide stable power supply.

Packaging/Quantity: The MAX8890ETCJJJ+ is typically sold in reels containing 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 0.8V to VIN
• Maximum Output Current: 500mA
• Dropout Voltage: 120mV at 300mA
• Quiescent Current: 40µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8890ETCJJJ+ has the following pin configuration:

1. EN (Enable): Enable pin for turning the regulator on/off.
2. GND (Ground): Ground reference for the IC.
3. FB (Feedback): Feedback pin for adjusting the output voltage.
4. VOUT (Output Voltage): Regulated output voltage.
5. VIN (Input Voltage): Input voltage supply.
6. BYP (Bypass): Bypass capacitor connection for improved stability.
7. NC (No Connection): Pin not connected internally.
8. NC (No Connection): Pin not connected internally.
9. NC (No Connection): Pin not connected internally.
10. VOUT (Output Voltage): Regulated output voltage.

Functional Features

• High efficiency: The MAX8890ETCJJJ+ provides high efficiency power regulation, minimizing power loss and maximizing battery life in portable devices.
• Low dropout voltage: With a low dropout voltage of 120mV at 300mA, the IC can maintain stable output voltage even when the input voltage is close to the desired output voltage.
• Overcurrent and thermal protection: The IC incorporates overcurrent and thermal protection features, ensuring safe operation under abnormal conditions.
• Adjustable output voltage: The output voltage can be adjusted within the specified range to meet the requirements of different applications.

Advantages and Disadvantages

Advantages: - High efficiency power regulation - Low dropout voltage - Small package size - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection

Disadvantages: - Limited maximum output current (500mA)

Working Principles

The MAX8890ETCJJJ+ utilizes a combination of internal circuitry, feedback control, and voltage regulation techniques to provide a stable output voltage. It regulates the input voltage to the desired output voltage by adjusting the internal switching elements. The feedback pin (FB) allows for precise adjustment of the output voltage, while the enable pin (EN) controls the on/off state of the regulator.

Detailed Application Field Plans

The MAX8890ETCJJJ+ is commonly used in various electronic devices that require efficient power management. Some application fields include: - Mobile phones - Tablets - Portable media players - Digital cameras - Handheld gaming devices - Wearable devices

Detailed and Complete Alternative Models

• MAX8891ETCJJJ+: Similar to MAX8890ETCJJJ+, but with higher maximum output current (800mA).
• MAX8892ETCJJJ+: Similar to MAX8890ETCJJJ+, but with adjustable output voltage and higher maximum output current (1A).
• MAX8893ETCJJJ+: Similar to MAX8890ETCJJJ+, but with additional features such as power sequencing and voltage monitoring.

These alternative models offer similar functionality with slight variations in specifications to cater to different application requirements.

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