LTC1046CS8#PBF

Voltage - Output (Min/Fixed):	-Vin, 2Vin, Vin/2
Base Part Number:	LTC1046
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:	5.5kHz ~ 30kHz
Current - Output:	50mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	6V
Voltage - Input (Min):	1.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Positive or Negative
Function:	Ratiometric
Part Status:	Active
Packaging:	Tube

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LTC1046CS8#PBF Application Field and Working Principle

Introduction

The LTC1046CS8#PBF is a monolithically integrated voltage regulator incorporating a power MOSFET, a PWM controller, voltage reference, and over current limit circuit. It also includes thermal shutdown protection and soft start. The package includes an exposed pad which should be soldered to the PCB for improved heat dissipation and superior performance. The device can output up to 5A of current at up to 36V. It is an ideal power solution for DC/DC converters where high efficiency, low noise and compact size are important considerations.

Application Field

The LTC1046CS8#PBF voltage regulator is suitable for a wide variety of applications such as DC-DC converters, current-mode power supplies, switching power amplifiers, motor speed control, automotive systems, industrial motor control, distributed power supplies, synchronous rectifiers, telecommunications, battery chargers, uninterruptible power supplies (UPS), switch-mode power supplies (SMPS), and medical electronics.

Working Principle

The LTC1046CS8#PBF can be used as either a synchronous or non-synchronous boost converter. In the synchronous version, the power MOSFET is connected to an external active clamp circuit that regulates the output voltage. In the non-synchronous version, the power MOSFET is connected directly to the output. The LTC1046CS8#PBF operates in current mode, which means that it has greater stability and better load regulation than voltage-mode controllers.The LTC1046CS8#PBF is continuously operating with no external clock in current-mode control. Its integrated MOSFET can handle high currents, which makes it suitable for high power applications. The device also includes an adjustable soft-start feature and a unique protection circuit that allows the device to operate safely even in high current or short circuit conditions.

Conclusion

The LTC1046CS8#PBF is an integrated monolithic voltage regulator that incorporates a power MOSFET, PWM controller, voltage reference, and over current limit circuit. It is suitable for a variety of applications including DC-DC converters, current-mode power supplies, switching power amplifiers, motor speed control, automotive systems, and industrial motor control. It can work in either synchronous or non-synchronous boost converter mode. It is a current-mode controller with high-performance protection features, making it a dependable choice for high power applications.

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