LT3505EDD#TRPBF

Voltage - Output (Min/Fixed):	0.78V
Base Part Number:	LT3505
Supplier Device Package:	8-DFN (3x3)
Package / Case:	8-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	200kHz ~ 3.01MHz
Current - Output:	1.2A
Voltage - Output (Max):	33.84V
Series:	--
Voltage - Input (Max):	36V
Voltage - Input (Min):	3.6V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

LT3505EDD#TRPBF is a DC-DC switching regulator from Linear Technology that addresses the need for efficient, reliable, and high-performance power solutions. This integrated circuit (IC) is designed to convert a regulated input voltage to a regulated and constant output voltage. The regulated output voltage can range from 5V, 6V, 9V, 12V, and 15V, and it is capable of supporting loads up to 2A. Its two main advantages are the wide input voltage range and its high efficiency of up to 92%. Its extensive range of features and wide power handling capability make it well-suited for industrial applications and portable electronics.

Features of LT3505EDD#TRPBF

The LT3505EDD#TRPBF is a versatile device that provides an array of features that make it a suitable design choice. Some of the main features of this DC-DC switching regulator include:

• Wide input voltage operation: 6V to 36V (5V to 40V absolute maximum rating)
• Fixed output voltage range selectable between 5V, 6V, 9V, 12V, and 15V
• 2A output current with a 95% efficiency rating
• Output voltage set through a single resistor
• Integrated low-side MOSFET switch
• Low shutdown current of less than 1μA
• Thermal and current-limit protection

Application Field

The LT3505EDD#TRPBF is an ideal choice for a wide range of applications due to its versatile features and wide input voltage range. Common applications in which this DC-DC switching regulator is used include portable communication and multimedia products, medical instruments, industrial equipment, automotive applications, and point-of-load converters. In addition, the LT3505EDD#TRPBF is ideal for applications with very tight space constraints due to its miniature size.

Working Principle

The LT3505EDD#TRPBF utilizes a switching converter topology to regulate a constant output voltage. The input voltage is applied to a high-voltage MOSFET switch that is operated in the on-off mode to convert the input voltage to the required output voltage. The device is designed with an integrated lowside MOSFET switch which enables a high efficiency of up to 95%. The regulator also utilizes an adjustable current-limit protection circuit that is used to protect the device from overloading.

Conclusion

The LT3505EDD#TRPBF is a versatile DC-DC switching regulator from Linear Technology that is designed to convert a regulated input voltage to a regulated and constant output voltage. Its wide input voltage range and high efficiency make it suitable for a wide array of applications ranging from portable communication to industrial equipment. Its working principle involves the utilization of a switching converter topology and an integrated low-side MOSFET switch to convert the input voltage to the required output voltage. Overall, the LT3505EDD#TRPBF provides an efficient and reliable solution for regulating a wide range of output voltages.

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