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LX8385-33

Microsemi Corporation
Part Number LX8385-33
Manufacturer Microsemi Corporation
Description 3 A LOW DROPOUT POSITIVE REGULATORS
Published Mar 30, 2005
Detailed Description LIN D O C # : 8385 LX8385-xx/8385A-xx/8385B-xx 3 A L O W D R O P O U T P O S I T I V E R E G U L AT O R S T H E I N F...
Datasheet PDF File LX8385-33 PDF File

LX8385-33
LX8385-33

Overview
LIN D O C # : 8385 LX8385-xx/8385A-xx/8385B-xx 3 A L O W D R O P O U T P O S I T I V E R E G U L AT O R S T H E I N F I N I T E P O W E R O F I N N O VA T I O N P R O D U C T I O N D A T A S H E E T DESCRIPTION The LX8385/8385A/8385B series ICs are positive regulators designed to provide 3A output current.
Each regulator yields higher efficiency than currently available devices with all internal circuitry designed to operate down to a 1V input-to-outputdifferential.
In these products, the dropout voltage is fully specified as a function of load current.
The LX8385's dropout is guaranteed at a maximum of 1.
5V at maximum output current, decreasing at lower load currents.
The LX8385A/85B have a maximum dropout voltage of 1.
3V.
The LX8385B offers a tighter voltage reference tolerance: ±1.
0% over line, load and temperature, with 0.
8% initial accuracy.
The LX8385/85A have 1.
0% initial accuracy, with 2% over line, load and temperature.
The LX8385/85A/85B series devices are pin-compatible with earlier 3-terminal regulators, such as 117 series products.
While a 10µF output capacitor is required on both input and output of these new devices, this is generally included in most regulator designs.
The quiescent current of the LX8385/ 85A/85B series products flows into the load, increasing efficiency.
This feature contrasts with PNP regulator designs, where up to 10% of the output current is wasted as quiescent current.
The LX8385-xxI is rated for -25°C to +125°C applications, and the LX8385-xxC /8385B-xxC is rated for 0°C to +125°C applications.
K E Y F E AT U R E S s Three-Terminal Adjustable Or Fixed Output Voltage s Guaranteed 1% Voltage Reference Accuracy Over Line, Load And Temperature (LX8385B) s Guaranteed < 1.
5V Headroom At 3A (LX8385) s Guaranteed < 1.
3V Headroom At 3A (LX8385A/8385B) s Output Current Of 3A Minimum p 0.
015% Line Regulation p 0.
1% Load Regulation A P P L I C AT I O N S s High Efficiency Linear Regulators s Post Regulators For Switching P...


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