MAX889TESA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Noise, Small Package Size
• Package: TDFN-8 (Thin Dual Flat No-Lead)
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 1.2V to 3.6V
• Maximum Output Current: 500mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX889TESA+T has the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. EN: Enable Pin
4. FB: Feedback Pin
5. VOUT: Output Voltage
6. SW: Switching Node
7. PGND: Power Ground
8. LX: Inductor Connection

Functional Features

• High Efficiency: The MAX889TESA+T offers high efficiency power conversion, minimizing energy loss.
• Low Noise: It provides low output voltage ripple and noise, ensuring stable and clean power supply.
• Small Package Size: The TDFN-8 package allows for compact designs in space-constrained applications.
• Enable Pin: The EN pin enables or disables the regulator, providing control over power consumption.

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Low output voltage ripple and noise - Compact package size - Enable pin for power control

Disadvantages: - Limited maximum output current (500mA) - Dropout voltage of 120mV at 100mA may not be suitable for low-power applications

Working Principles

The MAX889TESA+T is a voltage regulator that takes an input voltage within the range of 2.7V to 5.5V and provides a regulated output voltage between 1.2V and 3.6V. It achieves this by using a switching regulator topology, which allows for high efficiency power conversion.

The regulator operates by continuously switching an internal transistor on and off to control the flow of current through an inductor. This switching action stores energy in the inductor during the on-time and releases it to the output during the off-time. By adjusting the duty cycle of the switching, the regulator maintains a stable output voltage regardless of input voltage variations.

Detailed Application Field Plans

The MAX889TESA+T is commonly used in various battery-powered devices, such as smartphones, tablets, portable media players, and wearable devices. Its small package size and low power consumption make it ideal for space-constrained applications where efficiency and long battery life are crucial.

Detailed and Complete Alternative Models

• MAX888TESA+T: Similar specifications and features, but with a different pin configuration.
• MAX890TESA+T: Higher maximum output current (800mA) and wider input voltage range (2.5V to 5.5V), suitable for more demanding applications.
• MAX887TESA+T: Lower maximum output current (300mA) and lower quiescent current (20µA), suitable for low-power applications.

(Note: The alternative models mentioned above are just examples and not an exhaustive list.)

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