LT1370HVIT7#PBF

Voltage - Output (Min/Fixed):	1.245V
Base Part Number:	LT1370
Supplier Device Package:	TO-220-7
Package / Case:	TO-220-7 (Formed Leads)
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 70°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	500kHz
Current - Output:	6A (Switch)
Voltage - Output (Max):	42V (Switch)
Series:	--
Voltage - Input (Max):	30V
Voltage - Input (Min):	2.7V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck, Boost, Cuk, Flyback, Forward Converter, SEPIC
Output Configuration:	Positive or Negative
Function:	Step-Up, Step-Down, Step-Up/Step-Down
Part Status:	Active
Packaging:	Tube

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Introduction

LT1370HVIT7#PBF is an advanced high voltage, integrated, buck driver designed for high power applications. It is an integrated DC-DC switching regulator with synchronous rectification, capable of delivering up to 40V at 0.8A. The device is fully protected and includes a wide voltage range output voltage foldback that prevents possible catastrophic system failures due to extreme transient conditions.

PMIC - Voltage Regulators - DC DC Switching Regulators

The LT1370HVIT7#PBF can be classified as a DC-DC switching regulator since it operates by switching between a number of voltage levels. It is a linear voltage regulator, meaning it provides an output voltage and current that is proportional to its input voltage and load current, respectively.The device incorporates an integrated syncFET driver and can deliver up to 0.8A of output current, making it suitable for a wide range of applications. It also offers adjustable output voltage and can operate from 3V to 40V, making it an ideal solution for a wide range of DC-DC switching regulator applications.

Applications

The LT1370HVIT7#PBF can be used in power management applications, such as automotive, industrial, and medical. It is also suitable for powering motor controllers, audio amplifiers, lighting, and UPS systems. The device is also a good choice for industrial applications, as it can deliver fast transient responses with minimal ripple and noise. Its high efficiency, low output voltage offset and excellent AC and thermal performance also make it suitable for high-end industrial applications. Additionally, its wide input voltage range makes it a good choice for solar powered applications.

Working Principle

The LT1370HVIT7#PBF operates by switching between a number of voltage levels. When the input voltage is equal to the output voltage, MOSFETs are turned off, resulting in no power losses. When the input voltage exceeds the output voltage, the MOSFETs operate in the “on” state and allow current to flow through the inductor to the output capacitor. Power is then supplied to the load and the output voltage is maintained.The synchronous rectification in the device ensures that the output voltage is regulated and smoothly regulated. This improves the efficiency of the device and reduces cost and size. The device features an integrated main frequency throttle circuit and allows the switching frequency to be adjusted between 1.5kHz and 100kHz, thus providing an efficient use of the available power.

Summary

The LT1370HVIT7#PBF is an advanced high voltage and integrated buck driver designed for high power applications. It can deliver up to 0.8A of output current, and operate from 3V to 40V. It is suitable for a wide range of applications including automotive, industrial, medical, motor controllers, and audio amplifiers. The device is a DC-DC switching regulator and operates by switching between a number of voltage levels. The synchronous rectification ensures that the output voltage is regulated, and it also has an integrated main frequency throttle circuit.

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