LX8385-00ID データシートの表示（PDF） - Microsemi Corporation

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LX8385-00ID

3A Low Dropout Positive Regulators

Microsemi Corporation 



A MICROSEMI COMPANY

LX8385x-xx

3A Low Dropout Positive Regulators

PRODUCTION DATA SHEET



The LX8385/85A/85B Series ICs are The LX8385/85A/85B Series devices are

positive regulators designed to provide 3A pin-compatible with earlier 3-terminal

output current. These regulators yield regulators, such as the 117 series products,

higher efficiency than currently available but they do require input and output

devices with all internal circuitry designed capacitors. A minimum 10µF capacitor is

to operate down to a 1V input-to-output required on the input and a 15µF or greater

differential. In each of these products, the on the output of these new devices for

dropout voltage is fully specified as a stability. Although, these capacitors are

function of load current. Dropout is generally included in most regulator designs.

guaranteed at a maximum of 1.3V The LX8385/85A/85B Series quiescent

(8385A/B) and 1.5V (8385) at maximum current flows into the load, thereby

output current, decreasing at lower load increasing efficiency. This feature contrasts

currents.

with PNP regulators where up to 10% of the

In addition, on-chip trimming adjusts the output current is wasted as quiescent

reference voltage tolerance to 1% maximum current.

at room temperature and 2% maximum over The LX8385-xxI is specified over the

the 0 to 125°C range for the LX8385A. The industrial temperature range of -25°C to

LX8385B offers 0.8% tolerance at room 125°C, while the LX8385-xxC / 85A-xxC /

temperature and 1.0% maximum over line, 85B-xxC is specified over the commercial

load and temperature. Fixed versions are range of 0°C to 125°C.

also available and specified in the Available

Options table below.

IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com


 

IN

5V

+

*1500µF

6MV1500GX

Sanyo

LX8385A

ADJ

OUT

121Ω

1%

200Ω

1%

3.3V

at 3A

+

1500µF

2x 6MV1500GX

Sanyo

 

Three-Terminal Adjustable Or

Fixed Output

Guaranteed 1% Voltage

Reference Accuracy Over Line,

Load, And Temperature

(LX8385B)

Guaranteed < 1.5V Headroom At

3A (LX8385)

Guaranteed < 1.3V Headroom At

3A (LX8385A/8385B)

0.015% Line Regulation

0.15% Load Regulation

 

High Efficiency Linear

Regulators

Post Regulators For Switching

Power Supplies

Battery Chargers

Constant Current Regulators

Graphics & Standard Supplies

Processor I/O Supply

Low Voltage Memory & Chipset

Supplies

 



 

LX8385/85A/85B-00 Adjustable

LX8385/85A/85B-33

3.3V

LX8385/85A/85B-05

5.0V

Table 1 - Available Options

  

TA (°C)

Max Ref Max Dropout

Plastic TO-252

Accuracy Voltage DT (D-Pak) 3-Pin

0 to 125

-25 to 125

2.0%

2.0%

1.0%

2.0%

1.5V

1.3V

1.3V

1.5V

LX8385-xxCDT

LX8385A-xxCDT

LX8385B-xxCDT

LX8385-xxIDT



Plastic TO-220

Plastic TO-263

P 3-Pin

DD 3-Pin

LX8385-xxCP

LX8385A-xxCP

LX8385B-xxCP

LX8385-xxIP

LX8385-xxCDD

LX8385A-xxCDD

LX8385B-xxCDD

LX8385-xxIDD

Copyright © 2000

Rev. 2.0a, 2001-03-15

Note: Available in Tape & Reel.

Append the letter “T” to the part number. (i.e. LX8385-xxCPT)

Microsemi

Linfinity Microelectronics Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

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