LT1111CS8#PBF

Voltage - Output (Min/Fixed):	1.25V
Base Part Number:	LT1111
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	72kHz
Current - Output:	1.5A (Switch)
Voltage - Output (Max):	50V (Switch)
Series:	--
Voltage - Input (Max):	30V
Voltage - Input (Min):	2V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck, Boost
Output Configuration:	Positive or Negative
Function:	Step-Up, Step-Down
Part Status:	Active
Packaging:	Tube

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LT1111CS8#PBF: LT1111CS8#PBF is a low standby power, monolithic, synchronous step down switching regulator which is integrated into a tiny 5 pins package. Its high voltage input and output wide range of operating temperature, adjustable current limit and high efficient makes it suitable for multiple industry applications. Features like low quiescent current and switch current limit reduces peak currents further improving system performance, moreover its space saving size makes it idea for many applications. With choosable output voltage as low as 0.8 V, this device capable to regulate low current step down converters and power supplies with high power density design.Application Field: The LT1111CS8#PBF is suitable for many different applications. Its small form factor, multiple features and wide temperature range make it suitable for many industrial application, both for home and business needs. Typical application for this device are regulators for power supplies, motor control, audio amplifiers, mesh controllers, consumer electronics, automotive and miniature portable applications.Working Principle: The LT1111CS8#PBF is based on a synchronous switching topology, meaning that it utilizes two power switches, one high side and one low side switch operated by high frequency clock signal letting the switch to turn on and off in quick timed sequence. This enables efficient power conversion as the power switches regulate the output voltage of the converter. The device is able to regulate the output current down as low as 0.8 V, with a power switch voltage a bit higher than the output voltage, this device is capable to perform as a low voltage drop regulator. With the external sense circuitry, the device ensures that the output voltage is kept constant while providing a regulated current flow and it is protected from over-current stress by in-built current limits mechanism.Conclusion: LT1111CS8#PBF is a monolithic and synchronous step down switching regulator integrated in a tiny 5 pins package. With many features and wide temperature ranges, it has been designed for multiple industry applications and for both home and business needs. The device is based on a synchronous switching topology where two power switches regulate the output voltage of the converter, and it is capable to regulate the output current as low as 0.8 V. These features makes this device an ideal choice for many applications where an high efficient, small form factor and low operating temperature is needed.

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