LT1963ES8#PBF

Current - Output:	1.5A
Base Part Number:	LT1963
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable
PSRR:	63dB (120Hz)
Current - Supply (Max):	120mA
Current - Quiescent (Iq):	1.5mA
Series:	--
Voltage Dropout (Max):	0.55V @ 1.5A
Voltage - Output (Max):	20V
Voltage - Output (Min/Fixed):	1.21V
Voltage - Input (Max):	20V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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LT1963ES8#PBF Application Field and Working Principle

Introduction

The LT1963ES8#PBF is a high-performance, three-terminal negative linear regulator with a wide range of output voltages, low dropout and high current capability. It operates over input voltage range of −2.7V to −42V, which is optimized for 1-cell Li-Ion battery applications.This article aims to discuss the application field, features, and working principle of the LT1963ES8#PBF.

Application Field

The LT1963ES8#PBF is integrated with a precise internal reference and current-limiting circuitry, making it an ideal choice for a wide range of applications. It is extensively used in Li-Ion/Li-Poly battery-powered systems, computer peripherals, cellular phones, power supplies, automobiles, and other portable applications.In Li-Ion/Li-Poly battery-powered systems, the LT1963ES8#PBF is used to regulate the voltage at the battery connection. It provides an adjustable output voltage of up to −12V and a stable voltage up to 5A, which is ideal for most battery-powered systems.For computing applications, the LT1963ES8#PBF has a wide range of output voltages and low dropout, making it perfect for use in printers, laptops and other computer peripherals. It provides the precise voltage regulation, continuous short-circuit protection, and temperature compensated current-limiting circuitry required by these systems.The LT1963ES8#PBF is also widely used in automotive systems and other portable applications. It can be used to regulate the main battery voltage as well as other voltages in the system. The adjustable output voltage, low dropout, and wide input voltage range make it a versatile solution for these applications.

Features

The LT1963ES8#PBF features a wide range of output voltage settings, low dropout voltage, current-limiting circuitry, and temperature-compensated current-limiting. It also has an internal current limit of 10A, which makes it suitable for a wide range of applications. In addition to these features, the LT1963ES8#PBF also comes with input transients protection and thermal shutoff that protects the device from over-temperature conditions. The device is also available in an 8-pin Ultra-Small footprint package, which makes it an ideal choice for space-constrained designs.

Working Principle

The LT1963ES8#PBF is a linear voltage regulator, which is a type of power management integrated circuit (PMIC). It is designed to regulate the output voltage of a power supply by controlling the input current.At its core, the LT1963ES8#PBF consists of two transistors, a resistor and a capacitor. When an input voltage is applied, the capacitor charges up to a certain point and the resistor increases the voltage until it is equal to the output voltage. The LM335 then adjusts the current passing through the transistor, which in turn affects the output voltage. The output voltage is controlled by the adjust terminal of the device. As the adjust terminal is adjusted, the output voltage is increased or decreased proportionally. The device also features a low input voltage, low dropout voltage and low quiescent current, making it an ideal choice for low power applications.

Conclusion

The LT1963ES8#PBF is a high-performance, three-terminal negative linear regulator with a wide range of output voltages, low dropout and high current capability. It is designed for use in Li-Ion/Li-Poly battery-powered systems, computer peripherals, cellular phones, power supplies, automobiles, and other portable applications. It features a wide range of output voltage settings, low dropout voltage, current-limiting circuitry, and temperature-compensated current-limiting, and is available in an 8-pin Ultra-Small footprint package. The device works by controlling the input current, which in turn affects the output voltage, and is adjusted by the adjust terminal. It is a highly versatile device, ideal for a wide range of applications.

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