MAX1951ESA+TG11

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage Regulator

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

Package: SOIC-8

Essence: The MAX1951ESA+TG11 is a voltage regulator IC that provides a stable output voltage with high efficiency and low dropout voltage.

Packaging/Quantity: The MAX1951ESA+TG11 is available in a standard SOIC-8 package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 150mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX1951ESA+TG11 has the following pin configuration:

```

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| | --| VOUT IN |-- Pin 1: Input Voltage (VIN) --| GND EN |-- Pin 2: Enable (EN) --| FB GND |-- Pin 3: Ground (GND) --| NC VOUT |-- Pin 4: Output Voltage (VOUT) |___________| ```

Functional Features

• High Efficiency: The MAX1951ESA+TG11 offers high efficiency, minimizing power loss and maximizing battery life.
• Low Dropout Voltage: With a low dropout voltage of only 120mV at 100mA, the IC can maintain a stable output even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The output voltage can be adjusted from 0.6V to the input voltage, providing flexibility for various applications.
• Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the circuit and load from excessive current.
• Thermal Shutdown Protection: In case of excessive temperature, the IC automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages: - High efficiency - Low dropout voltage - Adjustable output voltage - Overcurrent and thermal protection

Disadvantages: - Limited maximum output current (150mA)

Working Principles

The MAX1951ESA+TG11 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 to adjust the pass transistor's resistance and maintain a stable output voltage. The enable pin (EN) allows the regulator to be turned on or off as needed.

Detailed Application Field Plans

The MAX1951ESA+TG11 is commonly used in battery-powered devices, such as portable electronics, IoT devices, and wireless communication systems. Its low dropout voltage and high efficiency make it suitable for applications where power conservation is crucial.

Alternative Models

• MAX1952ESA+TG11
• MAX1953ESA+TG11
• MAX1954ESA+TG11
• MAX1955ESA+TG11

These alternative models offer similar functionality and characteristics to the MAX1951ESA+TG11, providing options for different design requirements.

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