LT3688EFE#PBF

Voltage - Output (Min/Fixed):	0.8V
Base Part Number:	LT3688
Supplier Device Package:	24-TSSOP
Package / Case:	24-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	500kHz ~ 2.1MHz
Current - Output:	800mA
Voltage - Output (Max):	36V
Series:	--
Voltage - Input (Max):	36V
Voltage - Input (Min):	3.8V
Number of Outputs:	2
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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Introduction

LT3688EFE#PBF is a high-power, single-channel DC-DC converter with a maximum continuous output power of 25W and a peak output power of 100W. It is suitable for any application that requires high efficiency and superior power handling.

Application Field

The LT3688EFE#PBF is a high-efficiency, single-channel, PFM-controlled buck switching regulator available in 5V, 12V, and 24V outputs. It features high efficiency pulse-width modulation (PWM) control with a wide input voltage range. The LT3688EFE#PBF is designed for use in a variety of applications, such as point-of-load (POL) regulation, digital power conversion, LED lighting and telecom/LAN applications. The output voltage range of the LT3688EFE#PBF is 4.5V to 28V.

Working Principle

The LT3688EFE#PBF is a synchronous step-down DC-DC converter with a variety of features, including floating output voltage, adjustable switching frequency and Burst Mode® operation. The Burst Mode function enables the converter to maintain high efficiency at light loads with fast transient response by reducing the switching frequency at lighter loads. The switching frequency can be adjusted between 250 kHz and 1 MHz using an external frequency control pin. Additionally, the LT3688EFE#PBF offers current mode operation for improved line regulation and load regulation.

Conclusion

The LT3688EFE#PBF is a high-power, single-channel DC-DC converter with a maximum continuous output power of 25W and a peak output power of 100W. It is suitable for a wide range of applications, including LED lighting, telecom/LAN applications and point-of-load (POL) regulation. It features high efficiency pulse-width modulation (PWM) control with a wide input voltage range, adjustable switching frequency, floating output voltage and Burst Mode® operation. It is therefore the perfect choice for applications requiring high efficiency and superior power handling.

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