LT1242CS8#PBF

Duty Cycle:	96%
Base Part Number:	LT1242
Mounting Type:	Surface Mount
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	0°C ~ 100°C (TJ)
Control Features:	Frequency Control
Fault Protection:	--
Frequency - Switching:	Up to 500kHz
Series:	--
Voltage - Supply (Vcc/Vdd):	10 V ~ 25 V
Voltage - Start Up:	16V
Topology:	Buck
Voltage - Breakdown:	--
Internal Switch(s):	No
Output Isolation:	Isolated
Part Status:	Active
Packaging:	Tube

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PDF The LT1242CS8#PBF is a 50mA synchronous step-down switchmode regulator that operates from inputs up to 65V. It provides a low power solution for low voltage designs with adjustable outputs from 0.6V to 10V. The device has excellent maximum duty cycle and its switching frequency is adjustable from 200kHz to 1.2MHz.The AC DC converters are typically used in a wide variety of applications such as power supplies, LED drivers, buck-boost converters, battery chargers and other general purpose AC-DC converters. The AC input of an offline switcher is transformed into a direct current DC output and the positive and negative parts of the wave are switched off, thus saving energy. The output current (DC) from the converter is regulated by controlling the switching frequency and duty cycle of the converter.The LT1242CS8#PBF has been designed for high current buck-boost operation and it has very low utilization of total input power, resulting in excellent efficiency and higher power output for a given size. The current mode architecture of the device provides fast and precise control of the output voltage across a range of load conditions and it provides protection from short circuit conditions.The device operates from a wide range of input voltages and it features a wide range of adjustable and fixed output voltages. The LT1242CS8#PBF is synchronous and with proper PCB layout, it can support output currents up to 50A with an adjustable output voltage range of 0.6V to 10V. It also provides an adjustable frequency range of 200kHz to 1.2MHz and adjustable soft start.The device has advanced power saving functions such as burst mode operation and adaptive on-time control, which help to reduce the power consumption in light load conditions. It also offers cycle-by-cycle current limit and over temperature protection which ensures safe and reliable operation.The LT1242CS8#PBF has a highly integrated power supply controller with a single phase boost-buck dc-dc converter, which increases system efficiency, reduces the external component count and reduces the overall size of the power conversion system. The device also offers a wide range of features to improve system reliability and prevent damage, such as under volt monitoring, overvoltage protection, short circuit protection and open circuit protection.The LT1242CS8#PBF is ideal for a variety of high power applications, such as LED lighting, power tools, medical equipment, servers, power supplies and a variety of applications in automotive, industrial, communication and consumer electronics. The device offers a high level of integration, with very low power consumption and improved system efficiency while providing reliable performance with excellent protection features. Overall, the LT1242CS8#PBF is a highly efficient and reliable switching regulator, and it provides excellent output voltage accuracy and is suitable for a variety of AC-DC conversions applications. It offers industry leading performance and is ideal for low power systems that require a small and efficient power solution.

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