MAX1947ETA25+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency voltage regulator - Low dropout voltage - Adjustable output voltage - Thermal shutdown protection - Overcurrent protection

Package: 8-pin TDFN (Thin Dual Flat No-Lead) package

Essence: The MAX1947ETA25+ is a power management IC designed to regulate voltage efficiently with low dropout voltage, making it suitable for various applications.

Packaging/Quantity: The MAX1947ETA25+ is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 1.2V to 3.6V
• Dropout Voltage: 120mV at 300mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX1947ETA25+ has the following pin configuration:

```

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| | --| VIN VOUT|-- --| GND EN |-- --| FB PG |-- |___________| ```

• VIN: Input voltage pin
• VOUT: Output voltage pin
• GND: Ground pin
• EN: Enable pin (active high)
• FB: Feedback pin
• PG: Power Good indicator pin

Functional Features

1. High Efficiency: The MAX1947ETA25+ offers high efficiency voltage regulation, minimizing power loss and maximizing battery life.
2. Low Dropout Voltage: With a low dropout voltage of only 120mV at 300mA, the IC can maintain stable output voltage even when the input voltage is close to the desired output voltage.
3. Adjustable Output Voltage: The output voltage can be adjusted within a range of 1.2V to 3.6V, providing flexibility for various applications.
4. Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, preventing damage due to excessive heat.
5. Overcurrent Protection: The MAX1947ETA25+ includes overcurrent protection, safeguarding the circuit from excessive current flow.

Advantages and Disadvantages

Advantages: - High efficiency voltage regulation - Low dropout voltage - Adjustable output voltage - Thermal shutdown and overcurrent protection

Disadvantages: - Limited output voltage range (1.2V to 3.6V)

Working Principles

The MAX1947ETA25+ operates as a linear voltage regulator. It takes an input voltage within the range of 2.5V to 5.5V and regulates it to a stable output voltage between 1.2V and 3.6V. The feedback pin (FB) monitors the output voltage and adjusts the internal circuitry to maintain the desired voltage level. The enable pin (EN) controls the operation of the IC, allowing it to be turned on or off as needed.

Detailed Application Field Plans

The MAX1947ETA25+ is suitable for various applications that require efficient voltage regulation with low dropout voltage. Some potential application fields include: - Battery-powered devices - Portable electronics - IoT (Internet of Things) devices - Wearable devices - Embedded systems

Detailed and Complete Alternative Models

1. MAX1947ETB25+: Similar to MAX1947ETA25+, but available in a 10-pin TDFN package.
2. MAX1947EUA25+: Similar to MAX1947ETA25+, but available in a 8-pin µMAX package.
3. MAX1947EPA25+: Similar to MAX1947ETA25+, but available in a 8-pin DIP package.

These alternative models offer similar functionality and characteristics, providing options for different packaging requirements or form factors.

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