MAX858ESA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency step-up DC-DC converter
• Package: SOIC-8
• Essence: Voltage regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.25V to 16V
• Switching Frequency: 500kHz
• Maximum Output Current: 150mA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX858ESA+T has a total of 8 pins arranged as follows:

```

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| | --| Vout Vin|-- Pin 1: Input Voltage (Vin) --| GND EN |-- Pin 2: Enable Control (EN) --| FB SW |-- Pin 3: Feedback (FB) --| NC SW |-- Pin 4: Not Connected (NC) --| NC SW |-- Pin 5: Not Connected (NC) --| GND SW |-- Pin 6: Ground (GND) --| Vout SW |-- Pin 7: Output Voltage (Vout) |___________| ```

Functional Features

• High efficiency conversion from low input voltage to higher output voltage.
• Wide input voltage range allows for versatile applications.
• Adjustable output voltage through external resistors.
• Low quiescent current consumption.
• Overcurrent and thermal protection.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power dissipation.
• Compact package size enables space-saving designs.
• Wide input voltage range provides flexibility in various applications.
• Overcurrent and thermal protection enhance system reliability.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Requires external resistors for output voltage adjustment.

Working Principles

The MAX858ESA+T is a step-up DC-DC converter that utilizes a switching regulator to efficiently boost the input voltage to a higher output voltage. It operates by rapidly switching an internal power transistor on and off, controlling the energy transfer from the input to the output. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the internal switch to maintain a stable output voltage.

Detailed Application Field Plans

The MAX858ESA+T finds applications in various fields, including:

1. Battery-powered devices: Provides efficient voltage conversion for portable electronics such as smartphones, tablets, and wearable devices.
2. Industrial automation: Used in control systems, sensors, and actuators that require different voltage levels.
3. Automotive electronics: Enables voltage regulation in automotive modules, infotainment systems, and lighting applications.
4. IoT devices: Suitable for low-power IoT devices that operate on limited power sources like batteries or energy harvesting.

Detailed and Complete Alternative Models

1. MAX856ESA+T: Similar specifications and package, but with a lower maximum output current of 100mA.
2. MAX859ESA+T: Higher maximum output current of 200mA, suitable for applications requiring more power.
3. MAX860ESA+T: Offers adjustable output voltage through an integrated digital-to-analog converter (DAC).

These alternative models provide options based on specific requirements and desired performance characteristics.

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