OMNIREL OM185SR, OM185ST, OM183SC, OM186SR, OM184SC Datasheet
...
3.3 - 1
3.3
Three Terminal Adjustable Low Dropout
TO-257/TO-258 Positive Voltage Regulators
0 03 R3
Supersedes 4 11 R2
7.5A, 5A, 3A, 1.5A LOW DROPOUT POSITIVE
ADJUSTABLE 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 v oltage 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 D2Pac..
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
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).
OM185ST
OM186ST
OM183SC
OM184SC
OM185SR
OM186SR
3.3 - 2
3.3
OM183SC - OM186ST - OM186SR
ELECTRICAL CHARACTERISTICS (T
C
= 25°C unless otherwise noted)
Parameter Conditions Min. Typ. Max. Units
Reference V oltage I
OUT
= 10 mA, Tj= 25°C
(V
IN
- V
OUT
) = 3 V 1.238 1.250 1.262 V
10mA ≤ I
OUT
≤ I
FULL LOAD
1.5 V ≤ (VIN- V
OUT
) ≤ 25 V (Note 3) 1.220 1.250 1.270 V
Line Regulation I
LOAD
= 10 mA, 1.5 V ≤ (VIN- V
OUT
) ≤ 15 V, 0.015 0.2 %
T
j
= 25°C 0.035 0.2 %
15 V ≤ (V
IN
- V
OUT
) ≤ 35 V (Notes 1 & 2) 0.05 0.5 %
Load Regulation (V
IN
- V
OUT
) = 3 V
10 mA ≤ I
OUT
≤ I
FULL LOAD
Tj= 25°C 0.5 0.8 %
(Notes 1, 2, 3) .8 1.0 %
Dropout Voltage ∆V
REF
=
1%, I
OUT
= I
FULL LOAD
1.3 1.5 V
Current Limit
OM183SC (V
IN
- V
OUT
) = 5 V 8.0 A
(V
IN
- V
OUT
) = 25 V 0.4 A
OM184SC (V
IN
- V
OUT
) = 5 V 5.5 A
(V
IN
- V
OUT
) = 25 V 0.3 A
OM185ST/SR (V
IN
- V
OUT
) = 5 V 3.2 A
(V
IN
- V
OUT
) = 25 V 0.2 A
OM186ST/SR (V
IN
- V
OUT
) = 5 V 1.5 A
(V
IN
- V
OUT
) = 25 V 0.75 A
Minimum Load Current (V
IN
- V
OUT
) = 25 V 5 10 mA
Thermal Regulation T
A
= 25°C, 30 ms pulse
OM183SC Guaranteed by design 0.002 0.01 %/W
OM184SC 0.003 0.15 %/W
OM185ST/SR 0.004 0.02 %/W
OM186ST/SR 0.010 0.05 %/W
Ripple Rejection f = 120 Hz
C
ADJ
= 25 µF Tantalum
I
OUT
- I
FULL LOAD (VIN
- V
OUT
) = 3 V 60 75 dB
Adjust Pin Current T
J
= 25°C 55 µA
Adjust Pin Current Change 10mA ≤ I
OUT
≤ I
FULL LOAD
1.5 V ≤ (VIN- V
OUT
) ≤ 25 V 0.2 5 µA
Temperature Stability -55°C ≤ T
J
≤ +150°C 0.5 %
Long T erm Stability T
A
= 125°C, 1000 Hrs. 0.3 1 %
Thermal Resistance Junction-to-Case
TO-257AA/D
2
Pac 4.2 °C/W
TO-258AA 2.75 °C/W
Note 1: Load and line regulation are measured at a constant junction temperature by low duty cycle pulse testing.
Note 2: Line and load regulation are guaranteed up to the maximum power dissipation (OM183/60W, OM184/45W, OM185/30W,
OM186/15W). Power dissipation is determined by the input/output differential and the output current. Guaranteed maximum
power dissipation will not be available over the full input/output voltage range.
Note 3: I
FULL LOAD
curve is defined as the minimum value of current limit as a function of input to output voltage. Note that power
dissipation is only achievable over a limited range of input to output voltage.
Note 4: Dropout voltage is specified over the full output current range of the device.
Loading...