LT1952IGN-1#PBF

Frequency - Switching:	100kHz ~ 500kHz
Base Part Number:	LT1952
Supplier Device Package:	16-SSOP
Package / Case:	16-SSOP (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Enable, Frequency Control
Serial Interfaces:	--
Clock Sync:	Yes
Synchronous Rectifier:	Yes
Duty Cycle (Max):	90%
Series:	--
Voltage - Supply (Vcc/Vdd):	6.82 V ~ 25 V
Output Phases:	1
Number of Outputs:	1
Topology:	Forward Converter
Output Configuration:	Positive, Isolation Capable
Function:	Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tube

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LT1952IGN-1#PBF is a 3-Input High-Efficiency Synchronous Step-Down DC/DC Controller suitable for a wide variety of power and voltage regulation applications. It employs a synchronous rectifier architecture and is designed to be used with either N-channel MOSFETs or P-channel MOSFETs for output currents up to 10A. The LT1952IGN-1#PBF offers a transition-mode switching topology for higher efficiency, with a wide input voltage range of 3V to 42V.

Application Field

The LT1952IGN-1#PBF is suitable for a wide range of power and voltage regulation applications. It can be used in low-noise power supplies, computing power regulation, lighting power supplies, notebook power supplies, automotive electronics, telecom and consumer applications. It also features integrated power density and offers high performance, highly efficient conversions in a small package.

Working Principle

The LT1952IGN-1#PBF is a 3-input high-efficiency synchronous step-down DC/DC controller that allows for adjustable output voltage for the design of power regulator applications. It employs a synchronous rectifier architecture, which provides a more efficient conversion. The 3 inputs include the master enable pin (EN), an adjustable voltage reference input (VREF), and a switching regulator enable input (FSW).The master enable pin (EN) controls when the device is enabled or disabled. When the input is driven low, the device is disabled and its output voltage is equal to VIN. When the input is driven high, the device is enabled and the output voltage is determined by the sum of VREF and a resistive divider connected to the FB input. The adjustable voltage reference (VREF) is driven by an external voltage or the internal bandgap reference. The internal bandgap reference provides accurate regulation of the output voltage over temperature and load variations. The external voltage gives greater flexibility in setting the output voltage. The voltage reference is compared to the feedback voltage and the device is enabled depending on the comparison.The switching regulator enable input (FSW) determines the switching frequency of the device. It can be programmed by means of an external resistor to a frequency of up to 2MHz. The falling edge of this signal initiates the switching cycle.The LT1952IGN-1#PBF also features current-mode control to provide improved regulation and transient response. The current-mode control ensures continuous mode operation for magnetic field strength applications and limits the amount of current flowing through the inductor.The LT1952IGN-1#PBF is designed for use with either N-channel MOSFETs or P-channel MOSFETs for output currents up to 10A. It uses synchronous rectification to improve conversion efficiency and provides over-temperature protection from NTCs integrated on-chip. The device also offers soft-start, voltage tracking, and power saving modes to minimize ripple, enhance transient performance, and provide low quiescent current.

Conclusion

The LT1952IGN-1#PBF is an ideal choice for power and voltage regulation applications. It offers a unique combination of features that include high efficiency, low power consumption, and small package size. It is suitable for low-noise power supplies, computing power regulation, lighting power supplies, notebook power supplies, automotive electronics, telecom, and consumer applications. It employs a synchronous rectifier architecture to provide over-temperature protection, soft-start, voltage tracking, and power saving modes. It is optimized for use with either N-channel or P-channel MOSFETs and offers adjustable frequency and current-mode control to suit a wide range of applications.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description