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LF201S 반도체 회로 부품 판매점

2W Single Output SMT DC/DC Converters



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micropowerdirect
LF201S 데이터시트, 핀배열, 회로
LF200S Series
Ultra-Miniature, 2W
Single Output SMT
DC/DC Converters
Key Features:
Electrical Specifications
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Input
Parameter
Conditions
Min. Typ. Max. Units
2W Output Power
5 VDC Input 4.5 5.0 5.5
Ultra-Miniature SMT Case Input Voltage Range
12 VDC Input 10.8 12.0 13.2
VDC
1,000 VDC Isolation
24 VDC Input 21.6 24.0 26.4
5V, 12 & 24V Inputs
-40ºC to +85ºC Operation
6 Standard Models
2.0 MH MTBF Minimum
Industry Standard Pin-Out
Reverse Polarity Input Current
Input Filter
Output
Parameter
Output Voltage Accuracy
Line Regulation
Capacitor
0.3
Conditions
Min. Typ. Max.
±1.5 ±4.0
For Vin Change of 1%
±1.2 ±1.5
A
Units
%
%
Load Regulation, See Note 1
See Model Selection Guide
Ripple & Noise (20 MHz)
See Note 2
50 75 mV P - P
Ripple & Noise (20 MHz)
Over Line, Load & Temp.
150 mV P - P
Ripple & Noise (20 MHz)
5 mv rms
Output Power Protection
120 %
Temperature Coefficient
±0.01 ±0.02 %/ºC
Output Short Circuit
Momentary (0.5 Sec.)
General
Parameter
Conditions
Min. Typ. Max. Units
Isolation Voltage
60 Seconds 1,000
VDC
Isolation Resistance
500 VDC 10
G
Isolation Capacitance
100 kHz, 1V
60 100
pF
Switching Frequency
70 100 120
kHz
Environmental
Parameter
Conditions
Min. Typ. Max. Units
Operating Temperature Range
Ambient -40 +25 +85
ºC
Operating Temperature Range
Case -40
+90 ºC
Storage Temperature Range
-40
+125
ºC
Cooling
Free Air Convection
Humidity
RH, Non-condensing
95 %
Physical
Case Size
0.50 x 0.36 x 0.34 Inches (12.7 x 9.3 x 8.7 mm)
MicroPower Direct
292 Page Street
Suite D
Stoughton, MA 02072
USA
Case Material
Weight
Reliability Specifications
Parameter
MTBF
Molding (UL94-V0)
0.05 Oz (1.5g)
Conditions
Min. Typ. Max.
MIL HDBK 217F, 25ºC, Gnd Benign 2.0
Units
MHours
T: (781) 344-8226
F: (781) 344-8481
W: www.micropowerdirect.com
Absolute Maximum Ratings
Parameter
Input Voltage Surge (1 Sec)
Conditions
Min. Typ. Max. Units
5 VDC Input -0.7
9.0
12 VDC Input -0.7
18.0 VDC
24 VDC Input -0.7
30.0
Lead Temperature
1.5 mm From Case For 10 Sec.
300 ºC
Internal Power Dissipation
All Models
650 mW
Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
www.micropowerdirect.com
http://www.Datasheet4U.com


LF201S 데이터시트, 핀배열, 회로
Model Selection Guide
www.micropowerdirect.com
Model
Number
LF201S
LF202S
LF211S
LF212S
LF221S
LF222S
Input
Voltage (VDC)
Current (mA)
Voltage
Nominal Range Full-Load No-Load (VDC)
5
4.5 - 5.5
519
60
5.0
5
4.5 - 5.5
488
60 12.0
12 10.8 - 13.2 213 30 5.0
12 10.8 - 13.2 201
30 12.0
24 21.6 - 26.4 106 15 5.0
24 21.6 - 26.4 101
15 12.0
Output
Current
(mA, Max)
400.0
165.0
400.0
165.0
400.0
165.0
Current
(mA, Min)
8.0
3.0
8.0
3.0
8.0
3.0
Load
Regulation
(%, Max)
11
11
8
5
8
5
Efficiency
(%, Typ)
Output
Capacitive
Load
(µF, Max)
Fuse Rating
Slow-Blow
(mA)
77 47 1,000
81 10 1,000
78 47 500
82 10 500
78 47 200
81 10 200
Notes:
1. Load regulation is measured for an output change of 20% to 100%.
2. When measuring output ripple, it is recommended that an external 0.33
µF ceramic capacitor be placed from the +Vout pin to the -Vout pin. For
noise sensitive applications, the use of 1.5 µF capacitors will reduce
the output ripple.
3. Operation at no-load will not damage these units. However, they may
not meet all specifications.
4. 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 applications 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 <1.0at 100 kHz)
capacitor be mounted close to the converter. For 5V input units a 2.2 µF
is recommended, for 12V input units, a 1.0 µF and for 24V input models,
a 0.47 µF.
5. 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.
Derating Curve
Mechanical Dimensions
Pin Connections
Pin Description
1 -Vin
2 +Vin
3 No Pin
4 -Vout
5 +Vout
6 No Pin
7 No Pin
8 NA
NA = Not for electrical connection
Board Layout
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
We Power Your Success - For Less!
292 Page Street Ste D Stoughton, MA 02072 TEL: (781) 344-8226 FAX: (781) 344-8481 E-Mail: [email protected]
http://www.Datasheet4U.com




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