LF700RW Datasheet, PDF (2/2 Pages) MicroPower Direct, LLC – Wide Input, 7.5W SMT Single & Dual Output DC/DC Converters

Model Selection Guide
Model
Number
Input
Voltage (VDC)
Current (mA)
Nominal Range
Full-Load No-Load
Voltage
(VDC)
Output
Current
(mA, Max)
Current
(mA, Min)
Efficiency
(%, Typ)
Fuse Rating
Slow-Blow
(mA)
LF701RW
12
9.0 - 18.0
417
25
3.3
1,200
90.0
79
1,500
LF702RW
12
9.0 - 18.0
595
25
5.0
1,200
60.0
84
1,500
LF703RW
12
9.0 - 18.0
718
25
12.0
625
32.0
87
1,500
LF704RW
12
9.0 - 18.0
710
25
15.0
500
25.0
88
1,500
LF705RW
12
9.0 - 18.0
496
25
±5.0
±500
±25.0
84
1,500
LF706RW
12
9.0 - 18.0
717
25 ±12.0
±312
±15.5
87
1,500
LF707RW
12
9.0 - 18.0
710
25 ±15.0
±250
±12.5
88
1,500
LF711RW
24 18.0 - 36.0
206
10
3.3
1,200
90.0
80
700
LF712RW
24 18.0 - 36.0
294
10
5.0
1,200
60.0
85
700
LF713RW
24 18.0 - 36.0
355
10
12.0
625
32.0
88
700
LF714RW
24 18.0 - 36.0
355
10
15.0
500
25.0
88
700
LF715RW
24 18.0 - 36.0
245
10
±5.0
±500
±25.0
85
700
LF716RW
24 18.0 - 36.0
355
10 ±12.0
±312
±15.5
88
700
LF717RW
24 18.0 - 36.0
351
10 ±15.0
±250
±12.5
89
700
LF721RW
48 36.0 - 75.0
103
8
3.3
1,200
90.0
80
350
LF722RW
48 36.0 - 75.0
147
8
5.0
1,200
60.0
85
350
LF723RW
48 36.0 - 75.0
178
8
12.0
625
32.0
88
350
LF724RW
48 36.0 - 75.0
178
8
15.0
500
25.0
88
350
LF725RW
48 36.0 - 75.0
123
8
±5.0
±500
±25.0
85
350
LF726RW
48 36.0 - 75.0
178
8
±12.0
±312
±15.5
88
350
LF727RW
48 36.0 - 75.0
178
8
±15.0
±250
±12.5
88
350
Notes:
1. When measuring output ripple, it is recommended that an external 0.47 μF ceramic
capacitor be placed from the +Vout pin to the -Vout pin for single output units and
from each output to common for dual output units. For noise sensitive applications,
the use of 3.3 μF capacitors will reduce the output ripple.
2. Transient recovery is measured to within a 1% error band for a load step change of
75% to 100%.
3. Operation at no-load will not damage these units. However, they may not meet all
specifications.
4. Dual output units may be connected to provide a 10 VDC, 24 VDC or 30 VDC output.
To do this, connect the load across the positive (+Vout) and negative (-Vout) outputs
and float the output common.
5. The converter should be connected to a low ac-impedance source. An input source
with a highly inductive impedance may affect the stability of the converter. In appli-
cations where the converter output loading is high and input power is supplied over
long lines, it may be necessary to use a capacitor on the input to insure start-up.
In this case, it is recommended that a low ESR (ESR <1.0Ω at 100 kHz) capacitor be
mounted close to the converter. For 12V input units a 4.7 μF is recommended, and
for 24V & 48V units a 2.2 μF.
6. It is recommended that a fuse be used on the input of a power supply for protection.
See the table above for the correct rating.
Capacitive Load
Derating Curve
Mechanical Dimensions
3.3 VDC
5 VDC
12 ,15 VDC
±5 VDC ±12, ±15 VDC
Output (Max) Output (Max) Output (Max) Output (Max) Output (Max)
680 μF
1,500 μF
100 μF
±680 μF
±100 μF
Board Layout
Pin Connections
Pin Single Dual
2,3,24 -Vin
-Vin
9
NC
NC
10
NC Common
11,12 -Vout -Vout
13 +Vout -Vout
14,15 +Vout +Vout
16 -Vout Common
1,22,23 +Vin +Vin
NC: No Connection
Notes:
• All dimensions are typical in inches (mm)
• Tolerance x.xx = ±0.01 (±0.25)
• Pin 1 is marked by a “dot” or indentation on the unit
MicroPower Direct
www.micropowerdirect.com
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