OMNIREL OM7637SM Datasheet
3.5 - 131
3.5
Isolated Hermetic Surface Mount Package
3.0 Amp, Positive Adjustable V oltage
Regulator
4 11 R1
Supersedes 1 05 R0
SURFACE MOUNT POSITIVE ADJUSTABLE
3.0 AMP VOLTAGE REGULATOR
FEATURES
• Isolated Hermetic Surface Mount Package
• Reference Voltage Set To ±2% (±1% Available)
• Built-In Thermal Overload Protection
• Short Circuit Current Limiting
• Product Is Available Hi-Rel Screened
• Electrically Similar To Industry Standard Type LM150A
DESCRIPTION
These three terminal positive regulators are supplied in a hermetic metal surface
mount package. All protective features are designed into the circuit including thermal
shutdown, current limiting and safe-area control. With heat sinking, they
can deliver over 3.0 amps of output current. These units feature 2% initial voltage
tolerance, with 0.3% load regulation and .01% line regulation.
ABSOLUTE MAXIMUM RATINGS @ 25°C
Input to Output Voltage Differential .......................................+35V
Operating Junction Temperature Range........................- 55°C to + 150°C
Storage Temperature Range .................................- 55°C to + 150°C
Typical Power/Thermal Characteristics:
Rated Power @ 25°C
TC...........................................................25W
TA.............................................................3W
Thermal Resistance:
θ
JC
........................................................4.2°C/W
θ
JA
........................................................42°C/W
Lead Temperature at Case (5 sec).................................225°C
OM7637SM
Note: For ±1% device, add letter “A” in front of part number (e.g. OMA7637SM).
OM7637SM
3.5
MECHANICAL OUTLINE
ELECTRICAL CHARACTERISTICS -55°C ≤ T
A
≤ 125°C (Note 1) unless otherwise specified
Test Symbol Conditions Limits Unit
Min. Max.
Reference Voltage V
REF
I
OUT
= 10mA 1.20 1.30 V
T
A
= 25°C
3.0V ≤ (V
IN - VOUT
) ≤ 35V, P ≤ 30W 1.20 1.30 V
10mA ≤ I
OUT
≤ 3.0A (Note 2)
Line Regulation ∆V
OUT
3.0V ≤ (V
IN - VOUT
) ≤ 35V, 0.01 %/V
(Note 2) ∆V
IN
I
OUT
= 10mA, TJ= 25°C
3.0V ≤ (V
IN - VOUT
) ≤ 35V, 0.05 %/V
I
OUT
= 10mA
Load Regulation ∆V
OUT
10mA ≤ I
OUT
≤ 3.0A, 17.5 mV
(Note 2) ∆I
OUT
V
OUT
≤ 5.0A, TJ= 25°C
10mA ≤ I
OUT
≤ 3.0A, 50 mV
V
OUT
≤ 5.0A
10mA ≤ I
OUT
≤ 3.0A, 0.35 %
V
OUT
≥ 5.0A, TJ= 25°C
10mA ≤ I
OUT
≤ 3.0A, 1.0 %
V
OUT
≥ 5.0A
Thermal Regulation 20ms pulse, T
A
=25°C 0.01 %/W
Ripple Rejection ∆V
IN
V
OUT
= 10V, f = 120Hz 66 dB
(Note 3) ∆V
REF
C
ADJ
= 10µF
Adjust Pin Current I
Adj
100 µA
Adjust Pin ∆I
Adj
10mA ≤ I
OUT
≤ 3.0A, I
OUT
= 10mA 5.0 µA
Current Change 3.0V ≤(V
IN - VOUT
) ≤ 35V
Miminum Load Current I
MIN
(V
IN - VOUT
) = 35V 5.0 mA
Current Limit I
CL
(V
IN - VOUT
) ≤ 10V 3.0 A
(V
IN - VOUT
) = 30V 0.3 A
Notes:
1. Unless otherwise specified, these specifications apply for (VIN- V
OUT
) = 5.0V and I
OUT
= 1.5A. Although power
dissipation is internally limited, these characteristics are applicable for power dissipation up to 30W.
2. Regulation is measured at a constant junction temperature using a pulse technique. Changes in output voltage
due to heating effects are covered under the specification for thermal regulation.
3. Guaranteed if not tested to the limits specified.
PIN CONNECTION
Pin 1: V
OUT
Pin 2: Adjust
Pin 3: V
IN
Case: Isolated
2
3
1
.425B
B
.100B
B
.200B
.350 MIN.B
B
± .020B
.115B
B
.035 WIDEB
FLAT 3 PLCS.B
.425B
.160B
.020B
.080 B
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