LT1121CN8#PBF

Current - Output:	150mA
Base Part Number:	LT1121
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Temperature, Reverse Polarity
Control Features:	Enable
PSRR:	58dB (120Hz)
Current - Supply (Max):	14mA
Current - Quiescent (Iq):	50µA
Series:	--
Voltage Dropout (Max):	0.7V @ 150mA
Voltage - Output (Max):	30V
Voltage - Output (Min/Fixed):	3.75V
Voltage - Input (Max):	30V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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The LT1121CN8#PBF is a high–voltage, adjustable three-terminal monolithic integrated circuit. It is a versatile regulator for a wide range of off-line and dc-to-dc converter applications. It can regulate output voltages from 1.25V to 40V with a maximum output current of 3A. It is the ideal choice for generating any regulated output from single or split supplies. LT1121CN8#PBF is a voltage regulator which is suited for various linear and switching applications.LT1121CN8#PBF is an adjustable three-terminal monolithic integrated circuit that works with an output voltage range of 1.25V to 40V and a maximum output current of 3A. It offers a 10V dropout voltage, a low quiescent current, and a fast transient response. It can be used with bipolar supplies and split dc-to-dc converters. It features current foldback and short-circuit protection. The chip features a low quiescent current, fast transient response, and a 0.2% temperature coefficient. The reference pin has temperature compensation diode to eliminate the need for external temperature compensation.The LT1121CN8#PBF is equally suitable for use in PWM (Pulse Width Modulated) power supplies, linear regulators, and switched-mode power supplies. It can be used for voltage regulation in a wide range of applications including power supplies, battery chargers, voltage-controlled switch mode supplies, motor control, and isolated DC/DC converters.The LT1121CN8#PBF is capable of providing very high current outputs, with a minimum dropout voltage as low as 0.3V at light loads. The chip also features a current limit circuit, which limits the output current in the event of a short circuit. This is important where high current outputs are required.The LT1121CN8#PBF has an internal foldback circuit to limit the maximum output current, which prevents the output voltage from exceeding the die junction temperature. The foldback circuit also reduces the average output current in response to a short circuit or an output overload. Furthermore, the foldback circuit is designed to not damage the power supply when it is enabled.The LT1121CN8#PBF is designed to operate in an open loop architecture, typically with a feedback resistor-capacitor (RC) network across the output terminals. During start-up, the output voltage is typically linearly increased by adjusting the control-input voltage or the feedback resistor until the output voltage matches the required setpoint.The LT1121CN8#PBF offers many advantages including low dropout voltage, low quiescent current, fast transient response, efficient current limiting, and thermal shut-down protection. It also offers a wide range of operational temperature range, making it suitable for a wide range of applications.In conclusion, the LT1121CN8#PBF offers a wide range of applications due to its wide range of features, such as low dropout voltage, low quiescent current, fast transient response, efficient current limiting, and thermal shut-down protection. This device is ideal for applications such as PWM power supplies, linear regulators, and switched-mode power supplies where precise voltage regulation is required. It can be used for generating any regulated output from single or split supplies.

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