MP2497GN-A

Voltage - Input (Max):	50V
Supplier Device Package:	8-SOICE
Package / Case:	8-SOIC (0.154", 3.90mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	100kHz
Current - Output:	3A
Voltage - Output (Max):	25V
Voltage - Output (Min/Fixed):	0.8V
Series:	--
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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MP2497GN-A application field and working principle

PMIC (Power Management Integrated Circuit) is an integral part of modern electronic systems, providing efficient and reliable power delivered to multiple internal system components. In charge of voltage regulators, one of the PMIC’s main tasks is to provide the necessary power conversion. The MP2497GN-A, manufactured by the Multi-Tech Systems, Inc., is a DC-DC switching regulator, ideal for applications which require the conversion of a low input voltage to a higher output voltage.The Multi-Tech Systems MP2497GN-A features a compac, low current consumption design and operates from a 2.5V to 5.5V input voltage range. Available in three package variations, this device supports a fixed output voltage of 3.3V, adjustable between 2.6V and 5.5V for the adjustable version. The output current with high efficiency is rated at 500mA, with peak output current up to 800mA.The MP2497GN-A boasts several protection features including an over voltage, over current and thermal protection. Moreover, it is capable of delivering a low level output ripple and a low noise operation. This DC-DC switching regulator has a wide operating temperature range between -40°C and 85°C, making it suitable for harsh environment applications.In terms of switching frequency, the MP2497GN-A offers a fixed output frequency of 700kHz, allowing for a fast and efficient power conversion. The control circuit regulates the output voltage and the switching speed via an external resistor, making it a suitable device to counter the voltage drop.To achieve a fast, reliable and efficient power conversion, the MP2497GN-A switching regulator follows a pulse width modulation (PWM) technique, to regulate its output voltage. The internal circuit contains an oscillator and an error amplifier, which generate and modulate the output voltage. The oscillator produces an on/off signal, and the error amplifier compares the voltage of the output and the feedback voltage before sending the signal to the gate of the Power MOSFET.Based on the commands sent by the error amplifier, the Power MOSFET connected in series with the inductor-capacitor network governs the current flow through the system. To control the steady waveform, the pulses of the MOSFET switch on and off in a multi-stage process (dyadic wave modulation). As a result, the output voltage is in a continuous cycle and the PWM-generated waveform can be determined by adjusting the switching frequency.The MP2497GN-A main application field relies on products which rely on a low input voltage power source and require a higher output voltage. This type of voltage regulators is most beneficial in portable devices such as mobile phones, digital cameras, MP3 players, and handheld gaming consoles, where heat dissipation is limited and extremely high current consumption is not in the cards.In a nutshell, the MP2497GN-A is an efficient DC-DC switching regulator, ideal for applications needing a reliable and fast power conversion with low current consumption. With its compact size, robust protection features and wide temperature operating range, this voltage regulator provides optimal energy efficiency and makes it suitable for applications from portable devices to automotive electronics.

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