OM1324NTM, OM1324STM, OM1324NKM, OM1324SMM, OM1324NMM, OM1324N2M
ELECTRICAL CHARACTERISTICS -55°C ≤ TA ≤ 125°C, IL = 8mA (unless otherwise specified)
OM1324N2M
Parameter
Symbol
Test Conditions
VDIFF = 3.0V, TA
DIFF = 3.3V
Min.
25°C1.238
1.225
1.225
25°C-4.5
-9
Max.
1.262
1.270
1.270
4.5
Unit
V
Reference Voltage
VREF
=
V
•
•
VDIFF = 40V
Line Regulation
(Note 1)
RLINE
3.0V ≤ VDIFF ≤ 40V, Vout = Vref, TA
=
mV
3.3V ≤ VDIFF ≤ 40V, Vout = Vref
RLOAD VDIFF = 3.0V, 10mA ≤ IL ≤ 500 mA, TA
VDIFF = 3.3V, 10mA ≤ IL ≤ 500 mA
VDIFF = 40V, 10mA ≤ IL ≤ 150 mA, TA
•
•
•
9
Load Regulation
(Note 1)
=
25°C-15
-15
15
15
mV
=
25°C-15
-15
15
VDIFF = 40V, 10mA ≤ IL ≤ 100 mA
Vin = 14.6V, IL = 300 mA
d = 4.0 Watts, t = 20 ms, TA = 25°C
f = 120 Hz, Vout = Vref
15
Thermal Regulation
VRTH
-2
2
mV
dB
P
Ripple Rejection
(Note 2)
RN
•
66
CAdj = 10 µF
Adjustment Pin Current
IAdj
VDIFF = 3.0V, TA
VDIFF = 3.3V
DIFF = 40V
VDIFF = 3.0V, 10mA ≤ IL ≤ 500 mA, TA
VDIFF = 3.3V, 10mA ≤ IL ≤ 500 mA
VDIFF = 40V, 10mA ≤ IL ≤ 150mA, TA
DIFF = 40V, 10mA ≤ IL ≤ 100mA
3.0V ≤ VDIFF ≤ 40V, TA
3.3V ≤ VDIFF ≤ 40V
=
25°C100
•
•
100
100
5
µA
µA
V
Adjustment Pin
Current Change
∆IAdj
=
25°C-5
-5
•
•
•
5
=
25°C-5
-5
5
V
5
=
25°C-5
-5
5
5
Miminum Load Current
ILmin
VDIFF = 3.0V, VOUT = 1.4V (forced)
VDIFF = 3.3V, VOUT = 1.4V (forced)
5.0
5.0
5.0
1.65
0.65
•
•
•
mA
A
VDIFF = 40V, VOUT = 1.4V (forced)
Current Limit
(Note 2)
ICL
VDIFF = 15V
0.5
VDIFF = 40V, TA
=
25°C0.15
Notes:
1. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used.
Changes in output voltage due to heating effects must be taken into account separately.
2. If not tested, shall be guaranteed to the specified limits.
3. The • denotes the specifications which apply over the full operating temperature range.
APPLICATION
Vout
Vin
* Cin is required if regulator is located an
appreciable distance from power supply filter.
OM1324STM
3.5
R1
240Ω
** Co is not needed for stability, however it does
improve transient response.
IAdj
Adjust
R2
Cin*
0.1 µF
R2
R1
Vout = 1.25 V (1 +
)+ IAd j R2
Since IAdj is controlled to less than 100 µA,
the error associated with this term is negligible
in most applications.
3.5 - 19