MAX1595ETC33+

Voltage - Output (Min/Fixed):	3.3V
Base Part Number:	MAX1595
Supplier Device Package:	12-TQFN (4x4)
Package / Case:	12-WQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	1MHz
Current - Output:	125mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	1.8V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Positive
Function:	Step-Up/Step-Down
Part Status:	Active
Packaging:	Tube

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Introduction MAX1595ETC33+ is a DC-DC switching regulator (DC-DC SR) from Maxim Integrated that is designed for use in automotive, computer and industrial applications. This device can be used in applications that require very high output current levels and low power consumption. It features a very low quiescent current, a wide input voltage range and a high switching frequency. The MAX1595ETC33+ DC-DC SR is based on a synchronous buck topology and has a wide range of adjustable output voltages ranging from 0.75V to 18V. It also features a fixed switching frequency of 500 kHz, which is programmable via an external clock. In addition, the MAX1595ETC33+ includes features such as soft start and output under-voltage protection.ApplicationsThe MAX1595ETC33+ DC-DC SR is ideal for automotive applications that require a power supply for audio and control subsystems with high efficiency and very low noise. It can also be used in computer and industrial applications that require high efficiency and low power consumption. This device can provide up to 3A of continuous output current with a wide input voltage range from 1.5V to 40V, allowing it to be integrated into a versatile range of applications. The MAX1595ETC33+ is also suitable for use in portable devices that require power from small batteries and have limited space. It can provide reliable power regulation, while reducing the effect of battery voltage variations due to temperature changes, making it suitable for use in portable medical and vending machines. Furthermore, its low quiescent current minimizes the battery draw, enabling longer battery times.Working PrincipleThe MAX1595ETC33+ DC-DC SR is based on a synchronous buck converter topology and uses an external clock to generate a fixed switching frequency of 500 kHz. The device consists of a high-side MOSFET switch, a low-side MOSFET switch, a voltage feedback comparator, an error amplifier and a reference voltage.The high-side and low-side MOSFET switches are responsible for regulating the output voltage. The voltage feedback comparator compares the output voltage with the voltage reference. If the output voltage is lower than the reference voltage, the error amplifier is enabled and the high-side switch is turned on, allowing the current through the power stage to increase. If the output voltage is higher than the reference voltage, the low-side switch is turned on and the current is reduced until the output voltage is equal to the reference voltage.ConclusionThe MAX1595ETC33+ DC-DC SR is a highly efficient device that is suitable for a variety of applications. It has a wide input voltage range and a fixed switching frequency of 500 kHz, which allows it to provide reliable power regulation with very low noise and high efficiency. This device is ideal for automotive, computer and industrial applications that require high output current levels and low power consumption. Its low-quiescent current minimizes the battery draw, making it suitable for use in portable devices.

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