MAX1922ETB+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current, Wide Input Voltage Range
• Package: 10-Pin TDFN (Thin Dual Flat No-Lead)
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 1.2V to 3.3V
• Maximum Output Current: 500mA
• Quiescent Current: 40µA (typical)
• Dropout Voltage: 120mV at 100mA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1922ETB+T has the following pin configuration:

1. GND (Ground)
2. EN (Enable)
3. FB (Feedback)
4. VOUT (Output Voltage)
5. VIN (Input Voltage)
6. NC (No Connection)
7. NC (No Connection)
8. NC (No Connection)
9. NC (No Connection)
10. VDD (Power Supply)

Functional Features

• High efficiency up to 95%
• Low quiescent current for improved battery life
• Wide input voltage range allows flexibility in power supply selection
• Built-in thermal shutdown protection
• Short-circuit and overcurrent protection

Advantages and Disadvantages

Advantages: - High efficiency results in less power dissipation - Low quiescent current prolongs battery life - Wide input voltage range provides versatility - Thermal shutdown protection prevents overheating - Short-circuit and overcurrent protection enhance reliability

Disadvantages: - Limited maximum output current of 500mA - Dropout voltage of 120mV may affect certain applications with low input voltages

Working Principles

The MAX1922ETB+T is a voltage regulator that takes an input voltage within the range of 2.5V to 5.5V and provides a regulated output voltage between 1.2V and 3.3V. It achieves high efficiency by utilizing a synchronous buck converter architecture. The device operates in pulse-width modulation (PWM) mode, adjusting the duty cycle of the switching transistor to regulate the output voltage.

Detailed Application Field Plans

The MAX1922ETB+T is commonly used in various portable electronic devices, such as smartphones, tablets, and digital cameras. It is suitable for applications where efficient power management is crucial, and space is limited. Some specific application fields include:

1. Mobile phones: Powering the core processor and other critical components.
2. Portable media players: Regulating the voltage for audio and video processing.
3. Wearable devices: Providing stable power supply for sensors and communication modules.
4. IoT devices: Enabling efficient power management in connected devices.
5. Battery-powered equipment: Extending battery life by minimizing power consumption.

Detailed and Complete Alternative Models

1. MAX1921ETB+T: Similar specifications and pin configuration, but with a lower maximum output current of 300mA.
2. MAX1923ETB+T: Higher maximum output current of 800mA, suitable for applications requiring more power.
3. MAX1924ETB+T: Adjustable output voltage range from 0.8V to 3.3V, providing flexibility in voltage selection.
4. MAX1925ETB+T: Integrated LDO (Low Dropout) regulator for additional voltage regulation capabilities.

These alternative models offer different features and specifications to cater to diverse application requirements.

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