MCP1258T-E/MF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Boost Regulator
• Characteristics: High efficiency, low quiescent current, small package size
• Package: SOT-23-5
• Essence: Step-up DC-DC converter
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 1.8V to 5.5V
• Output Voltage Range: 2.5V to 5.5V
• Maximum Output Current: 120mA
• Quiescent Current: 10µA (typical)
• Switching Frequency: 1.2MHz (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MCP1258T-E/MF is a five-pin device with the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. SW: Switching node pin
4. FB: Feedback pin
5. VOUT: Output voltage pin

Functional Features

• High efficiency conversion of input voltage to output voltage
• Low quiescent current ensures minimal power consumption during standby
• Small package size allows for space-saving designs
• Built-in overcurrent protection for enhanced reliability
• Soft-start feature prevents excessive inrush current during startup

Advantages and Disadvantages

Advantages

• High efficiency results in longer battery life
• Low quiescent current reduces power wastage
• Small package size enables compact designs
• Overcurrent protection enhances system reliability
• Soft-start feature prevents damage to components

Disadvantages

• Limited maximum output current may not be suitable for high-power applications
• Narrow input voltage range may restrict compatibility with certain systems

Working Principles

The MCP1258T-E/MF is a step-up DC-DC converter that boosts the input voltage to a higher output voltage. It utilizes a switching regulator topology to efficiently convert the power. The device operates by rapidly switching an internal transistor on and off, controlling the energy transfer from the input to the output. This process allows for higher output voltages to be achieved while maintaining high efficiency.

Detailed Application Field Plans

The MCP1258T-E/MF is commonly used in various applications, including:

1. Battery-powered devices: Portable electronics, wearable devices, and IoT sensors benefit from the efficient voltage conversion and low quiescent current of the MCP1258T-E/MF.
2. Energy harvesting systems: The MCP1258T-E/MF can be used to boost the voltage generated by energy harvesting sources such as solar panels or piezoelectric elements.
3. Industrial automation: The small package size and overcurrent protection make the MCP1258T-E/MF suitable for industrial control systems and sensor networks.

Detailed and Complete Alternative Models

1. MCP1640: Similar step-up DC-DC converter with adjustable output voltage and higher maximum output current.
2. TPS61220: Step-up converter with wide input voltage range and adjustable output voltage.
3. LT1308: High-power step-up converter with a wide input voltage range and adjustable output voltage.

These alternative models offer similar functionality to the MCP1258T-E/MF but may have different specifications and package options.

In conclusion, the MCP1258T-E/MF is a voltage boost regulator IC that provides efficient step-up conversion with low power consumption. Its small package size and built-in features make it suitable for various applications in battery-powered devices, energy harvesting systems, and industrial automation. While it has limitations in terms of maximum output current and input voltage range, there are alternative models available to suit different requirements.