MP2116DQ-LF-Z

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: QFN (Quad Flat No-leads)

Essence: The MP2116DQ-LF-Z is a voltage regulator IC designed to provide a stable and regulated output voltage from a wide range of input voltages.

Packaging/Quantity: The MP2116DQ-LF-Z is available in a QFN package. It is typically sold in reels containing a specific quantity, such as 2500 units per reel.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to VIN
• Maximum Output Current: 1.5A
• Dropout Voltage: 200mV at 1A
• Quiescent Current: 100µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MP2116DQ-LF-Z has the following pin configuration:

1. VIN: Input voltage pin
2. EN: Enable pin for turning the regulator on/off
3. FB: Feedback pin for adjusting the output voltage
4. GND: Ground pin
5. SW: Switching node pin for connecting the external inductor
6. PG: Power good indicator pin

Functional Features

• High efficiency conversion
• Adjustable output voltage through feedback pin
• Overcurrent protection prevents damage to the IC and connected devices
• Thermal shutdown protection prevents overheating
• Power good indicator for monitoring the output voltage stability

Advantages and Disadvantages

Advantages: - High efficiency results in less power dissipation - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility - Overcurrent and thermal shutdown protection enhance reliability

Disadvantages: - Dropout voltage of 200mV may limit certain low voltage applications - Quiescent current of 100µA may affect battery-powered devices with strict power consumption requirements

Working Principles

The MP2116DQ-LF-Z operates as a step-down voltage regulator using a synchronous buck converter topology. It uses an external inductor and capacitor to convert the input voltage to a lower, regulated output voltage. The feedback pin (FB) is used to adjust the output voltage according to the desired value.

When enabled, the IC controls the switching of the internal MOSFETs to regulate the output voltage. It continuously monitors the output voltage and adjusts the duty cycle of the switching signals to maintain a stable output voltage despite variations in the input voltage or load conditions.

Detailed Application Field Plans

The MP2116DQ-LF-Z is commonly used in various applications that require a stable and regulated power supply. Some of the typical application fields include:

1. Portable electronic devices: Smartphones, tablets, portable media players
2. Industrial equipment: Test and measurement instruments, control systems
3. Automotive electronics: Infotainment systems, navigation systems
4. IoT devices: Wearable devices, smart home appliances
5. Battery-powered devices: Wireless sensors, remote controls

Detailed and Complete Alternative Models

1. MP2307DN: Similar voltage regulator IC with higher output current capability (3A)
2. MP1482DS: Step-down voltage regulator IC with fixed output voltage options
3. MP1584EN: Step-down voltage regulator IC with adjustable output voltage and higher input voltage range

These alternative models offer similar functionality and can be considered as substitutes for the MP2116DQ-LF-Z depending on specific application requirements.

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