MP2364DF-LF-Z

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	2
Voltage - Input (Min):	4.75V
Voltage - Input (Max):	23V
Voltage - Output (Min/Fixed):	0.92V
Voltage - Output (Max):	16V
Current - Output:	1.5A
Frequency - Switching:	1.4MHz
Synchronous Rectifier:	No
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package:	20-TSSOPF

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Application field and Working Principle of MP2364DF-LF-Z

PMIC - Voltage Regulators - DC DC Switching Regulators

Power management integrated circuits (PMICs) are precision electronics devices that maintain and control the power flow in a wide range of applications such as portable electronic devices, telecommunications equipment, wireless products, and industrial automation. Voltage regulator circuits are components used in PMICs to monitor and regulate any variations in voltage input and output of a power system.The MP2364DF-LF-Z, a monolithic and full-featured power management and voltage regulator IC, is an innovative device ideal for low- power and portable applications. It is a highly reliable, small-footprint DC-DC synchronous converter that utilizes a two-phase interleaved architecture. This device offers differential remote voltage sensing capability and 2A max output current with the highest level of integration and flexibility. Furthermore, this IC also offers programmable soft-start and over-current protection (OCP) settings which enhance user convenience and safety.This IC possesses both excellent line and load regulation as well as fast transient response for accurate voltage regulation. The MP2364DF-LF-Z\'s advanced 0.5V reference, combined with its programmable power sequencing framework, enable it to resourcefully manage and optimize power in multiple devices. This IC\'s standby operation control (STB) further allows the IC to address multi-rail power systems\' need for a low quiescent current in standby conditions.In short, the MP2364DF-LF-Z is a top-tier DC-DC converter IC mostly utilized in portable and low-power applications. Its integration of powerful integrated functions make it ideal for applications that demand an optimized power solution.

Working principle

The MP2364DF-LF-Z uses two-phase interleaved architecture to deliver efficient and accurate voltage regulation. This facilitates the IC\'s operation in a synchronized switching system, where two channels each comprising of a pair of MOSFETs and its resonance coil is used for boosting and sampling the current alternately. The MP2364DF-LF-Z employs adaptive-on-time (AOT) control for synchronizing two amplifiers and two MOSFETs to generate two output signals. This AOT-driven system reduces the complexity of other synchronous rectifiers and extends the efficiency of the system. With a single winding coil, it also literally simplifies the number of external components needed. This makes the combination of tiny components and the low inductor stress possible and further extends the efficiency of the device.For voltage sensing, the chip uses either remote sensing or on-board sensing both of which involve positive and negative inputs for power supply output voltage. This ensures the most accurate and reliable operation for any given application. To further prevent any external transient current from damaging the device, built-in reverse current protection is employed. For secure operation, the IC possesses over-temperature protection (OTP) and over/under-voltage protection (UVLO) followed by soft-start and over-current-protection (OCP). The OTP is responsible for safeguarding the device when the die temperature of the device exceeds 175 degree celsius. This feature helps to shutdown the device when the temperature is too high and prevents further damage. The UVLO helps the IC to operate only within established input voltage ranges. This limits undesired variations of voltage fluctuations, while OCP keeps the current within safe ranges.

Conclusion

The MP2364DF-LF-Z is a small-footprint, two-phase interleaved DC-DC synchronous converter IC perfectly suitable for low-power and portable applications. With features such as integrated 0.5V reference, differential remote sensing, programmable power sequencing, and over/under-voltage protection, the MP2364DF-LF-Z is an ideal device for power management and voltage regulation. Its two-phase interleaved architecture and synchronous rectifiers contribute to its improved performance and extend the efficiency of the system. Furthermore, user convenience and safety is further supported by features such as adaptive-on-time, over-temperature protection, over-current protection and programmable soft-start. All these features make the MP2364DF-LF-Z a reliable DC-DC converter device ideal for applications that demand an optimized power solution.

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