MAX16961RATEA/V+

Series:	--
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	2.7V
Voltage - Input (Max):	5.5V
Voltage - Output (Min/Fixed):	0.8V
Voltage - Output (Max):	3.6V
Current - Output:	3A
Frequency - Switching:	2.2MHz
Synchronous Rectifier:	Yes
Operating Temperature:	-40°C ~ 125°C (TA)

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The MAX16961RATEA/V+ is a member of the PMIC - Voltage Regulators - DC DC Switching Regulators family. Built using advanced CMOS process and up-to-date design methodology, this product provides high performance and low power to the user. In addition, it features low quiescent current and low output ripple, making it ideal for a wide range of applications. The rated input supply voltage range of the MAX16961RATEA/V+ is 2.6V to 11V, and the maximum output voltage is 25V. A wide operating temperature range of –40°C to +125°C makes it suitable for a variety of applications. The MAX16961RATEA/V+ provides adjustable switching frequency between 500kHz to 2Mhz, making it an ideal choice for many types of power conversion applications. The device is capable of pulse-by-pulse current limiting, over voltage protection, and thermal shutdown. The MAX16961RATEA/V+ features an integrated PMOS driver, allowing simple N-channel MOSFETs to be used as the synchronous rectifier. The integrated low side driver can switch at a low gate voltage, allowing higher efficiency and better EMI/EMC performance. The device also operates in either step up or step down mode and can provide a regulated voltage to an output capacitor.The MAX16961RATEA/V+ application field is wide and varied, and includes automotive and consumer products, charging applications, low power converters and LED drivers. For example, the device can be used to provide a regulated voltage to an LED from an automotive or consumer application. In addition, the device is suitable for use in power management systems for smart phones, tablets, and other portable devices. The working principle of the MAX16961RATEA/V+ is based on the pulse width modulation (PWM) technique. The duty cycle of the two output signals, which are produced by the integrated oscillator, is adjustable, allowing the user to control the average output voltage. The duty cycle is calculated by the device’s internal current loop which adjusts its output responding to the actual output voltage relative to the reference voltage. The device’s output stage consists of an N-channel MOSFET, which is turned ON and OFF by the integrated PMOS and NMOS drivers respectively. When the output voltage of the device is higher than the reference voltage, the PWM signal generated is reduced to increase the ON time (during which the MOSFET is turned ON) of the output stage. As a result, the output voltage is lowered. Similarly, when the output voltage is lower than the reference voltage, the PWM signal is increased to increase the OFF time of the output stage, resulting in an increase in the output voltage. In conclusion, the MAX16961RATEA/V+ is a versatile and power efficient member of the PMIC - Voltage Regulators - DC DC Switching Regulators family. It offers adjustable switching frequency and multiple protection features, making it suitable for a wide range of applications. Additionally, its integrated PMOS and NMOS drivers enable simple circuitry and improved efficiency and EMI/EMC performance. The device’s operating principle of pulse width modulation makes it highly efficient and capable of providing accurate output voltage.

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