MAX1721EUT+T

Voltage - Output (Min/Fixed):	-Vin, 2Vin
Base Part Number:	MAX1721
Supplier Device Package:	SOT-23-6
Package / Case:	SOT-23-6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	60kHz ~ 200kHz
Current - Output:	25mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	1.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Positive or Negative
Function:	Ratiometric
Part Status:	Active
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

MAX1721EUT+T Application Field and Working Principle

The MAX1721EUT+T is a low-voltage, low-power DC-DC switching regulator that offers high efficiency, low-cost operation and is ideal for an emerging variety of applications including PDAs, portable computers, cell phones, and other handheld devices requiring a regulated DC supply. This article will discuss the application field and working principle of the MAX1721EUT+T.The MAX1721EUT+T is designed for a wide input voltage range, from 2.7V to 10V, and can regulate output voltage from 0V to the input voltage. The output current is up to 0.9 A, with up to 96% efficiency. Its minimum operating supply voltage is 1V and the input current is less than 10 uA.The MAX1721EUT+T operates at a fixed frequency of 2.2MHz and has two internal compensation networks for accurate regulation over a wide output voltage range. The device also has internal soft-start, which eliminates any inrush current and stabilizes the output voltage faster. The device also features built-in thermal shutdown and short-circuit protection to provide high levels of system integrity.The design of the MAX1721EUT+T includes a buck-type topology and is suitable for addressing a wide variety of applications in areas such as portable electronics, telecommunications, and battery-powered systems.The MAX1721EUT+T is designed to be able to operate in either continuous conduction mode (CCM) or discontinuous conduction mode (DCM) depending on the application. In CCM, the inductor current never drops to zero, whereas in DCM, the current drops to zero during each switching cycle.In CCM, the model is stable over an extended range of load and input voltage, while DCM mode operation is best suited for applications with low-to-medium load current. This makes the MAX1721EUT+T an ideal power supply solution for many mobile and portable applications requiring a high degree of flexibility.The MAX1721EUT+T features an internal power switch that allows it to function at an input voltage of up to 10V. This feature makes it attractive for applications that require a higher input voltage for increased output power. The device also supports a wide input voltage range which allows for higher efficiency in low-voltage applications.The device is designed around a PWM (pulse width modulation) control loop that controls the output voltage by constantly monitoring and adjusting the duty cycle of the output pulse train. The switching of the high side MOSFET is controlled by an oscillator. When the oscillator turns on the MOSFET, the output voltage is regulated within a few microseconds. The oscillator actuates the MOSFET until the output voltage reaches the desired value. The switching of all internal power MOSFETs is synchronized with the main control MOSFET, eliminating the need for extra (expensive) external synchronization.The MAX1721EUT+T is a low-power, dual supply (input and output), low dropout, step-down DC-DC converter, with adjustable output voltage up to 10V and output current up to 0.9 A. The device features the highest efficiency over a wide range of load and input voltages and is able to operate in either continuous conduction mode (CCM) or discontinuous conduction mode (DCM) depending on the application. The device also has an internal soft-start, which eliminates any inrush current and stabilizes the output voltage faster. The device offers superior system performance with its excellent line, load and temperature regulation, built-in thermal shutdown and short-circuit protection, and adjustable switching frequency. The MAX1721EUT+T is well-suited for a variety of demanding applications in areas such as portable electronics, telecommunications, and battery-powered systems.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description