ADM660ARUZ-REEL

Voltage - Output (Min/Fixed):	-Vin, 2Vin
Base Part Number:	ADM660
Supplier Device Package:	16-TSSOP
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	25kHz, 120kHz
Current - Output:	100mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	7V
Voltage - Input (Min):	1.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Positive or Negative
Function:	Ratiometric
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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ADM660ARUZ-REEL Application Field and Working Principle

ADM660ARUZ-REEL is a DC-DC switching regulator from Analog Devices Inc.(ADI). It is a PMIC (Power Management Integrated Circuit) and falls under the category of voltage regulators – DC DC switching regulators. It offers automatic features such as power-on reset, current limiter and thermal shutdown. It is an adjustable version of the ADM660 regulator which shines with its efficiency and design simplicity.The ADM660ARUZ-REEL is designed to operate from a 5V to 15V input voltage range and provides a regulated output voltage of up to 18V. Its external components are minimized due to its current limit and thermally self-protected nature. It can operate in two modes, current mode and voltage mode. Its current mode exhibits fast transient response with good loop stability. Its voltage mode offers good output accuracy and line regulation. Its typical operating frequency is up to 1 MHz.The ADM660ARUZ-REEL is typically used in automotive, industrial and consumer power supplies and applications. Its highly integrated design, adjustable output and its wide input voltage range makes it ideal for distributed power supply application, battery powered systems and voltage step-up/step-down circuit. It can also be used in 12V/1.2V or 5V/1.2V or other design requirements.

Working Principle

The ADM660ARUZ-REEL works on the buck converter principle. The ADM660ARUZ-REEL helps to convert higher voltage from the input to the lower voltage required by the load. It consists of a power MOSFET switch and a catch diode which are connected in series. This series combination is connected across the input and output. When the switch is turned off, it will block the current flow and the voltage drop across the diode brings the output to a low state. When the switch is turned on, current will be drawn from the input and it is regulated through the output.The ADM660ARUZ-REEL offers an open loop current mode voltage regulator. The output voltage is sensed at a point near the load and compared with the reference voltage. This difference generates an error signal which is amplified and used to control the switch on time. The output voltage is thus regulated by adjusting the switch’s on time.The ADM660ARUZ-REEL also provides a wide range of protection features. It includes over voltage protection, over temperature protection, over current protection and short-circuit protection. These features are useful in protecting the system from any unexpected surge or overload.In conclusion, the ADM660ARUZ-REEL is an effective PMIC power device. Its adjustable output, wide input voltage range, wide range of protection features, suitability for distributed power application and its open loop current mode makes it an ideal choice for many applications.

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