Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.

Micropac reserves the right to make changes at any time in order to improve design and to supply the best product possible.

MICROPAC INDUSTRIES, INC. MICROCIRCUITS PRODUCTS DIVISION

 905 E. Walnut St., Garland, TX 75040  (972) 272-3571  Fax (972) 494-2281

www.micropac.com

1/6/06 Rev D

Pg. 1 of

3

42095

NEGATIVE HIGH TEMPERATURE REGULATOR

Mii

MICROCIRCUITS DIVISION

Features:



Output current to 1.5 amps



Input voltage to -38V



Output voltage to –30V



Internal short circuit protection, foldback and

current limiting



Storage Temperature +250°C



200°C Operating temperature

Applications:



Logging while drilling



Measuring while drilling (down-hole applications)



Other harsh environments



Used as military and industrial devices



Designed for use in high temperature

environments

DESCRIPTION

The 42095 series of regulators covers the voltage range from -5 VDC through -30 VDC. These regulators are fabricated

using hybrid techniques and will operate at temperatures up to +200°C case. These devices are complete with internal short

circuit protection which includes voltage shutdown and current foldback. It is strongly recommended that input and output

capacitors be added as close to the case as possible. A 2µf capacitor should be added to the input and a minimum of 1.5 µf

should be added to the output. See typical connection diagram.

ABSOLUTE MAXIMUM RATINGS AT 200°C Case temperature

Storage Temperature .........................................................................................................................................–65°C to 200°C

TABLE 1 (see note)

TYPE

42095-005

-5

1.5

2.0

42095-012

-12

1.5

2.0

42095-015

-15

1.5

2.0

42095-018

-18

1.5

2.0

42095-024

-24

1.5

2.0

42095-030

-30

1.5

2.0

Note:

Micropac can provide custom output voltages between -5VDC and -30VDC.