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PDF OM186ST Data sheet ( Hoja de datos )

Número de pieza OM186ST
Descripción 7.5A / 5A / 3A / 1.5A LOW DROPOUT POSITIVE ADJUSTABLE REGULATORS
Fabricantes ETC 
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OM183SC OM185ST OM185SR
OM184SC OM186ST OM186SR
7.5A, 5A, 3A, 1.5A LOW DROPOUT POSITIVE
ADJUSTABLE REGULATORS
Three Terminal Adjustable Low Dropout
TO-257/TO-258 Positive Voltage Regulators
FEATURES
• Operates Down to 1V Dropout, 1.5V @ Max. Current
• .015% Line Regulation
• .01% Load Regulation
• 1% Reference Voltage
• Hermetic TO-257 and TO-258 Isolated Packages
• Electrically Equivalent to LT1083, 84, 85 and 86
DESCRIPTION
These three terminal positive adjustable voltage regulators are designed to provide
7.5A, 5A, 3A, and 1.5A with higher efficiency than conventional voltage regulators. The
devices are designed to operate to 1 Volt input to output differential and the dropout
voltage is specified as a function of load current. All devices are pin compatible with
older three terminal regulators. Supplied in the easy-to-use hermetic metal TO-257
and TO-258 JEDEC packages also supplied in Omnirel’s new surface mount D2 Pac..
These devices are ideally suited for Military applications where small size, hermeticity
and high reliability are required.
ABSOLUTE MAXIMUM RATINGS @ 25°C
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65°C to + 150°C
Output Current - OM183SC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 A
OM184SC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 A
OM185ST/SR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 A
OM186ST/SR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A
3.3
Note: OM183SC and OM184SC products are packaged in the TO-258 Package (7.5A & 5A).
OM185ST and OM186ST products are packaged in the TO-257 Package (3A & 1.5A).
0 03 R3
Supersedes 4 11 R2
3.3 - 1

1 page




OM186ST pdf
MECHANICAL OUTLINE
OM183SC - OM186ST - OM186SR
SOLDERING FOOTPRINT
1 23
Pin 1: Adjust
Pin 2: Vout
Pin 3: Vin
Case N/C
TYPICAL SOLDERING PROFILE
Figure 1 shows a typical soldering profile for the D2 and D3 Packages when soldering a to a printed circuit board. The
profile will vary from system to system and solders to solders. Factors that can affect the profile include the type of sol-
dering system used, density and type of components on the board or substrate material being used. This profile shows
temperature versus time. The two profiles described are based on a high density and a low density board. The type sol-
der used was 62/36/2 Tin Lead Silver with a melting point between 177-189ºC. An convection/infrared soldering reflow
system was used. The circuit and solder joints heat up first due to their mass followed by the components which typi-
cally run 30 degrees cooler than the solder joints.
TYPICAL HEATING PROFILE
OM
Omnirel
PART NUMBER DESIGNATOR
183 S
R
M
Device
Type
Isolated
Package
Package
Style
Hi-Rel Screening
Level
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246

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