LTC3632IMS8E#PBF

Series:	--
Packaging:	Tube
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive or Negative
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	4.5V
Voltage - Input (Max):	50V
Voltage - Output (Min/Fixed):	0.8V
Voltage - Output (Max):	50V
Current - Output:	20mA
Frequency - Switching:	--
Synchronous Rectifier:	Yes
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Supplier Device Package:	8-MSOP-EP
Base Part Number:	LTC3632

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Introduction

The LTC3632IMS8E#PBF is a type of DC-DC switching regulator from Analog Devices. It has gained popularity due in part to its small inductor size, low power requirements, and flexible configuration options. This write-up aims to explain its various application fields, and how its internal components work to produce its desired output voltages.

Application Fields

The LTC3632IMS8E#PBF is designed for general-purpose power sourcing applications. This makes it ideal for use in automotive systems, LCD displays, and other consumer electronic products. It is also perfectly suited for battery-powered products, as its low quiescent current (<200uA) helps in the preservation of battery life.

Working Principle

In order to understand its working principle, let us consider the 4 main components that make up the LTC3632IMS8E#PBF; these are a high-side switch, a low-side switch, an inductor, and an output capacitor. The circuit takes in DC voltages from a variety of input voltage sources, including automotive batteries and wall outlets.Once an input voltage is supplied to the circuit, the high-side and low-side switches are enabled in sequence. This controls the current passing through the inductor. The stored energy in the inductor then causes a voltage rise at the output capacitor. The output voltage is regulated according to the duty cycle of the switches, which is controlled by the input voltage.

Conclusion

The LTC3632IMS8E#PBF DC-DC switching regulator is an ideal choice for a wide range of applications. Its small size, flexible configuration options and low power requirements make it an attractive choice for power sourcing applications, such as automotive systems, LCD displays, and battery-powered products. Furthermore, its working principle can be understood by analyzing the 4 main components that make up its circuit; these are a high-side switch, a low-side switch, an inductor, and an output capacitor.

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