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Power Management ICs (PMICs)

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NJM4151D
New Japan Radio
9 V,12 V,15 V,18 V 9 V,12 V,15 V,18 V DIP Through hole mounting 8.8mm*6.4mm*4.19mm
Quantity: 2400
Ship Date: 3-7 working days
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NJW4140R(TE2)
New Japan Radio
Quantity: 82
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NJU7710F2318-TE1
New Japan Radio
Voltage Detector 2ch 2.3/1.8V 1% SOT23-5
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NJU7741F05-TE1
New Japan Radio
5V SOT-23 SMD mount 2.9mm*1.6mm*1.1mm
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Ship Date: 7-13 working days
5+ $0.88
50+ $0.704
125+ $0.4609
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MOQ: 30
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Power Management ICs (PMICs)

Power Management Integrated Circuits (PMICs) are specialized semiconductor devices designed to regulate and manage the power supply within electronic systems. They ensure that the various components receive the correct voltage and current levels required for their operation, thereby enhancing efficiency, reliability, and longevity.

Definition:
A Power Management IC (PMIC) is an integrated circuit that controls the power supply to different parts of an electronic device. It includes features like voltage regulation, current limiting, and power sequencing.

Functions:
1. Voltage Regulation: Converts and stabilizes input voltage to the required levels for different components.
2. Current Limiting: Protects circuits from damage by limiting the current flow.
3. Power Sequencing: Ensures that components are powered on and off in the correct order.
4. Battery Management: Monitors and controls battery charging, discharging, and health.
5. Energy Efficiency: Implements power-saving modes to reduce energy consumption.

Applications:
PMICs are used in a wide range of devices, including:
1. Mobile Phones: Manage battery charging and power distribution to various components.
2. Laptops and Tablets: Control power to the CPU, display, and peripherals.
3. Automotive Systems: Manage power for engine control units, infotainment systems, and lighting.
4. IoT Devices: Power management for sensors, microcontrollers, and communication modules.

Selection Criteria:
When choosing a PMIC, consider the following:
1. Input Voltage Range: Must match the power source.
2. Output Voltage and Current Requirements: Must meet the specifications of the device components.
3. Efficiency: High efficiency reduces power loss and heat generation.
4. Integration Level: More integrated PMICs can reduce the number of external components.
5. Protection Features: Over-voltage, over-current, and short-circuit protection are essential.
6. Size and Form Factor: Should fit within the device's physical constraints.
7. Cost: Balancing performance with budgetary constraints.

In summary, PMICs are crucial for maintaining the stability and efficiency of electronic devices, and their selection should be based on a thorough understanding of the device's power requirements and constraints.
Please refer to the product rule book for details.