LTC3251EMSE#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency - Low quiescent current - Wide input voltage range - Multiple output voltages - Small package size

Package: MSOP-12

Essence: The LTC3251EMSE#TRPBF is a power management IC designed for various applications that require multiple regulated voltages. It provides high efficiency and low quiescent current, making it suitable for battery-powered devices.

Packaging/Quantity: The LTC3251EMSE#TRPBF is available in a tape and reel packaging, with 2500 units per reel.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: Adjustable from 1.2V to 5V
• Quiescent Current: 35µA (typical)
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC3251EMSE#TRPBF has the following pin configuration:

```

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| | --| VIN VOUT1|-- --| GND VOUT2|-- --| EN VOUT3|-- --| FB1 VOUT4|-- --| FB2 VOUT5|-- --| FB3 VOUT6|-- --| FB4 VOUT7|-- --| FB5 VOUT8|-- --| FB6 VOUT9|-- --| FB7 VOUT10|- --| FB8 VOUT11|- --| FB9 VOUT12|- |___________| ```

Functional Features

• Multiple Output Voltages: The LTC3251EMSE#TRPBF provides 12 regulated output voltages, allowing it to power various components in a system.
• High Efficiency: With an efficiency of up to 95%, the IC minimizes power loss and extends battery life in portable devices.
• Low Quiescent Current: The low quiescent current of 35µA ensures minimal power consumption when the device is in standby or idle mode.
• Wide Input Voltage Range: The IC can operate from a wide input voltage range of 2.7V to 5.5V, making it compatible with different power sources.
• Small Package Size: The MSOP-12 package offers a compact form factor, saving valuable board space in applications with size constraints.

Advantages and Disadvantages

Advantages: - Multiple output voltages for versatile power management - High efficiency for improved battery life - Low quiescent current for reduced power consumption - Wide input voltage range for compatibility with various power sources - Compact package size for space-constrained applications

Disadvantages: - Limited to 12 output voltages, may not meet the requirements of certain complex systems - Requires external components for proper operation

Working Principles

The LTC3251EMSE#TRPBF operates as a multi-output DC-DC converter. It takes an input voltage within the specified range and generates multiple regulated output voltages. The IC utilizes a combination of switching regulators and LDOs (Low Dropout Regulators) to achieve high efficiency and low quiescent current.

The feedback pins (FB1-FB9) are used to set the desired output voltages. By connecting appropriate resistors to these pins, the output voltages can be adjusted within the allowed range. The enable pin (EN) controls the overall operation of the IC, allowing the user to turn the device on or off as needed.

Detailed Application Field Plans

The LTC3251EMSE#TRPBF is suitable for a wide range of applications, including but not limited to: - Battery-powered devices - Portable electronics - IoT (Internet of Things) devices - Wearable devices - Industrial equipment - Medical devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LTC3251EMSE#TRPBF are: - LTC3260: Multi-output power supply with integrated LDOs - TPS65023: Power management IC with multiple output channels - MAX16910: High-efficiency multi-output DC-DC converter

These alternative models can be considered based on specific application requirements and design constraints.

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