MP3213DH-LF-Z Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Step-Up
Output Configuration:	Positive
Topology:	Boost
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	2.5V
Voltage - Input (Max):	22V
Voltage - Output (Min/Fixed):	3V
Voltage - Output (Max):	22V
Current - Output:	3.5A
Frequency - Switching:	700kHz, 1.3MHz
Synchronous Rectifier:	No
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Supplier Device Package:	8-MSOP

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Introduction

PMIC - Voltage Regulators - DC DC Switching Regulators are electronic circuits that are used to regulate the output voltage of an electrical device or circuit. The MP3213DH-LF-Z is a step-down switched current (DC) regulator with dual output feature. It offers a wide input voltage range from 4.5 V to 36 V and a low-profile 20-pad 3 mm × 3 mm QFN package. This device has adjustable accuracy of ±2%, low quiescent current and fast transient response for high efficiency switching applications.

Application Field

The MP3213DH-LF-Z can be used in various types of applications that require wide input voltage range and adjustable output voltage. Some of the most common applications include:

• Portable Computing and Communications Equipment
• Power Tools
• Measuring and Medical Equipment
• Power Adapters
• Small Electric Appliances
• Industrial Equipment
• Automotive Electronics

Working Principle

The MP3213DH-LF-Z is composed of two main components: the main controller and the output stage. The main controller is a switching regulator that operates by synchronously switching a current in an inductor, which is used as an output filter. The controller operates using pulse width modulation (PWM) with adjustable switching frequency and output voltage. The output stage contains two low-side MOSFETs, each with its own adjustable output voltage. The two MOSFETs are connected in series, allowing the output voltage to be controlled by varying the current flow through each MOSFET.The PWM signal is generated by the main controller and is used to control the switching of the low-side MOSFETs. The controller can be programmed to maintain a constant output voltage by monitoring the output voltage using an internal analog-to-digital converter (ADC). The controller then adjusts the width of the PWM signal to adjust the current flow through the MOSFETs and maintain a constant output voltage. The MP3213DH-LF-Z also includes several other components such as a soft start circuit, current limit circuit, over temperature protection (OTP) circuit, and a thermal shutdown circuit. All these components are designed to keep the output voltage stable and protect the device from damage due to excessive current or temperature.

Conclusion

The MP3213DH-LF-Z is an ideal choice for applications that require wide input voltage range and adjustable output voltage. The device is compact and efficient, and offers excellent performance in many different types of applications. The device can be programmed to maintain a constant output voltage, ensuring that the application runs reliably and efficiently.

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