OMNIREL OM7650SM, OM7649SM, OM7648SM Datasheet
3.5 - 147
3.5
Isolated Hermetic Surface Mount Package
Three Terminal, Fixed Voltage, 1 Amp,
Low Dropout Voltage Regulator
4 11 R0
SURF ACE MOUNT POSITIVE 0.5 VOL T , LOW
DROPOUT VOL T AGE REGULA TOR
FEATURES
• Isolated Hermetic Surface Mount Package
• Similar To Industry Standard LM2940
• Dropout Voltage Typically 0.5 V @ IO= 1 A
• Output Current In Excess Of 1 A
• Reverse Battery Protection
• Internal Short Circuit Protection
• Available Hi-Rel Screened
DESCRIPTION
These three terminal fixed voltage regulators are designed to provide 1.0A with high
efficiency. It has the ability to source 1A of output current with a typical dropout
voltage of .5V and a maximum of 1V over the entire temperature range. It is supplied
in a hermetic surface mount package and is ideally suited for Hi-Rel applications
where small size and high reliability are required.
ABSOLUTE MAXIMUM RATINGS @ 25°C
Input Voltage..............................................26 Vdc
Output Voltage ...................................+5V, +12V, +15Vdc
Operating Junction Temperature Range...................- 55°C to + 125°C
Storage Temperature Range...........................- 65°C to + 150°C
Lead Temperature (Soldering 10 Seconds) .........................300°C
Thermal Resistance:
θ
JC
(Isolated) ...........................................4.2°C/W
θ
JA
..................................................42°C/W
Maximum Output Current.......................................1.3 A
a
OM7650SMOM7648SM
OM7649SM
3.5 - 148
OM7648SM - OM7650SM
3.5
ELECTRICAL CHARACTERISTICS, P/N OM7649SM (12 Volts)
-55°C ≤ T
A
≤ 125°C, V
IN
= 20 V, I
O
= 1 A, C
OUT
= 22 µF (unless otherwise specified).
Parameter Symbol Test Conditions Notes Min. Max. Unit
Output Voltage V
OUT
V
IN
= 17 V, I
OUT
= 5 mA
1 11.64 12.36
2 11.40 12.60
V
V
IN
= 13.6 V, I
OUT
= 5 mA
1 11.64 12.36
2 11.40 12.60
V
IN
= 14 V, I
OUT
= 5 mA
1 11.64 12.36
2 11.40 12.60
V
IN
= 26 V, I
OUT
= 5 mA
1 11.64 12.36
2 11.40 12.60
V
IN
= 17 V, I
OUT
= 1 A
1 11.64 12.36
2 11.40 12.60
V
IN
= 13.6 V, I
OUT
= 1 A
1 11.64 12.36
2 11.40 12.60
V
IN
= 13.6 V, I
OUT
= 50 mA
1 11.64 12.36
2 11.40 12.60
V
IN
= 17 V, I
OUT
= 50 mA
1 11.64 12.36
2 11.40 12.60
Maximum Line Transient V
LT
V
O
≤ 13 V, R
O
= 100 Ω, t = 20 ms 1, 2 40 V
Reverse Polarity
V
RIN
R
O
= 100 Ω 1, 2 -15
V
Input Voltage DC
Reverse Polarity
V
RIT
R
O
= 100 Ω, t = 20 ms 1, 2 -45
V
Input Voltage Transient
Quiescent Current I
Q
V
IN
= 17 V, I
OUT
= 5 mA
115
mA
220
V
IN
= 14 V, I
OUT
= 5 mA
115
220
V
IN
= 26 V, I
OUT
= 5 mA
115
22030
V
IN
= 17 V, I
OUT
= 1 A
15
2 60 120
Line Regulation V
RLN
14 V ≤ V
IN
≤ 26 V, 1 ±75
mV
I
OUT
= 5 mA 2 ±120
Load Regulation V
RLD
V
IN
= 17 V, 50 mA ≤ I
OUT
≤ 1 A
1 ±120mV2 ±190
Dropout Voltage V
DO
I
OUT
= 1 A
1.7
V
21
I
OUT
= 100 mA
1150
mV
2200
Output Noise Voltage V
ON
V
IN
= 17 V, I
O
= 5 mA, 1 1000 µV rms
10 Hz - 100 Hz
Output Impedance R
O
V
IN
= 17 V, I
OUT
= 100 mA dc
1, 2 1 Ω
and 20 mA ac, f
O
= 120 Hz
Short Circuit Current I
OS
V
IN
= 17 V
1 1.6A2 1.3
Ripple Rejection R
R
V
IN
= 17 V + 1 V rms, 1 45
dB
I
OUT
= 5 mA, f = 1 kHz 2 42
Notes: 1. T
A
= 25°C.
2. Over full operating temperature range.
ELECTRICAL CHARACTERISTICS, P/N OM7648SM (5 Volts)
-55°C ≤ T
A
≤ 125°C, V
IN
= 20 V, I
O
= 1 A, C
OUT
= 22 µF (unless otherwise specified).
Parameter Symbol Test Conditions Notes Min. Max. Unit
Output Voltage V
OUT
V
IN
= 10 V, I
OUT
= 5 mA
1 4.85 5.15
2 4.75 5.25
V
V
IN
= 6 V, I
OUT
= 5 mA
1 4.85 5.15
2 4.75 5.25
V
IN
= 7 V, I
OUT
= 5 mA
1 4.85 5.15
2 4.75 5.25
V
IN
= 26 V, I
OUT
= 5 mA
1 4.85 5.15
2 4.75 5.25
V
IN
= 10 V, I
OUT
= 1 A
1 4.85 5.15
2 4.75 5.25
V
IN
= 6 V, I
OUT
= 1 A
1 4.85 5.15
2 4.75 5.25
V
IN
= 6 V, I
OUT
= 50 mA
1 4.85 5.15
2 4.75 5.25
V
IN
= 10 V, I
OUT
= 50 mA
1 4.85 5.15
2 4.75 5.25
Maximum Line Transient V
LT
V
O
≤ 6 V, R
O
= 100 Ω, t = 20 ms 1, 2 40 V
Reverse Polarity
V
RIN
R
O
= 100 Ω 1, 2 -15
V
Input Voltage DC
Reverse Polarity
V
RIT
R
O
= 100 Ω, t = 20 ms 1, 2 -45
V
Input Voltage Transient
Quiescent Current I
Q
V
IN
= 10 V, I
OUT
= 5 mA
115
mA
220
V
IN
= 7 V, I
OUT
= 5 mA
115
220
V
IN
= 26 V, I
OUT
= 5 mA
115
220
V
IN
= 10 V, I
OUT
= 1 A
150
2 100
Line Regulation V
RLN
7 V ≤ V
IN
≤ 26 V, 1 ±40
mV
I
OUT
= 5 mA 2 ±50
Load Regulation V
RLD
V
IN
= 10 V, 50 mA ≤ I
OUT
≤ 1 A
1±50
mV
2 ±100
Dropout Voltage V
DO
I
OUT
= 1 A
1.7
V
21
I
OUT
= 100 mA
1 150mV2 200
Output Noise Voltage V
ON
V
IN
= 10 V, I
O
= 5 mA, 1, 2 700 µV rms
10 Hz - 100 Hz
Output Impedance R
O
V
IN
= 10 V, I
OUT
= 100 mA dc
1, 2 1 Ω
and 20 mA ac, f
O
= 120 Hz
Short Circuit Current I
OS
V
IN
= 10 V
1 1.5A2 1.3
Ripple Rejection R
R
V
IN
= 10 V + 1 V rms, 1 60
dB
I
OUT
= 5 mA, f = 1 kHz 2 50
Notes: 1. T
A
= 25°C.
2. Over full operating temperature range.
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