MAX858CSA+T

Product Overview

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

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.23V to 20V
• Switching Frequency: 330kHz
• Maximum Output Current: 500mA
• Efficiency: Up to 90%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND (Ground)
2. SW (Switch)
3. FB (Feedback)
4. EN (Enable)
5. VCC (Voltage Common Collector)
6. NC (No Connection)
7. NC (No Connection)
8. VOUT (Output Voltage)

Functional Features

• High efficiency conversion of input voltage to output voltage
• Wide input voltage range allows for versatile applications
• Adjustable output voltage through feedback pin
• Enable pin for easy on/off control
• Overcurrent protection for enhanced safety
• Thermal shutdown protection to prevent overheating

Advantages

• Compact and space-saving package
• High efficiency results in reduced power consumption
• Wide input voltage range accommodates various power sources
• Adjustable output voltage provides flexibility in design
• Built-in protection features ensure safe operation

Disadvantages

• Limited maximum output current may not be suitable for high-power applications
• Requires external components for complete circuit implementation

Working Principles

The MAX858CSA+T is a step-up DC-DC converter that utilizes a switching regulator to efficiently convert a lower input voltage to a higher output voltage. The internal circuitry includes a power switch, inductor, diode, and control logic. When the input voltage is applied, the power switch rapidly switches on and off, creating a pulsating current through the inductor. This results in energy storage in the inductor during the switch-on period and energy release to the output during the switch-off period. The feedback pin allows for precise regulation of the output voltage by adjusting the duty cycle of the power switch.

Detailed Application Field Plans

The MAX858CSA+T is commonly used in various applications that require a higher output voltage than the available input voltage. Some typical application fields include:

1. Battery-powered devices: Portable electronics such as smartphones, tablets, and portable gaming consoles often require a higher voltage for certain components or subsystems.
2. Automotive systems: In automotive applications, the MAX858CSA+T can be used to step up the battery voltage to power various components like sensors, displays, or communication modules.
3. Industrial equipment: The converter can be employed in industrial machinery to provide the necessary voltage levels for motor drives, control circuits, or communication interfaces.
4. LED lighting: LED drivers often require a higher voltage than the input power source. The MAX858CSA+T can efficiently step up the voltage to drive LED arrays or lighting fixtures.

Detailed and Complete Alternative Models

• MAX1771ESA+: Similar step-up DC-DC converter with adjustable output voltage and higher maximum output current (700mA).
• LT1308CS8#PBF: Step-up DC-DC converter with adjustable output voltage, higher maximum output current (1.5A), and wider input voltage range.
• TPS61200DRCT: Ultra-low power step-up DC-DC converter with fixed output voltage and low quiescent current suitable for battery-powered devices.

Note: The alternative models listed above are just a few examples. There are numerous other options available in the market with varying specifications and features.

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