A_LT-2W & B_LT-2W Series
2W, FIXED INPUT, ISOLATED & UNREGULATED,
DUAL/SINGLE OUTPUT, SMD, DC-DC CONVERTER
multi-country patent protection RoHS
FEATURES
PRODUCT PROGRAM
High Efficiency up to 85%
SMD Package
1KVDC Isolation
Temperature Range: -40°C to +85°C
Internal SMD Construction
No Heat sink Required
No External Component Required
Industry Standard Pinout
RoHS Compliance
Input
Voltage (VDC)
Nominal Range
Output
Part
Number
Efficiency
(%, Typ)
Current (mA)
Voltage
(VDC)
Max
Min
±20
±11
±8
A0505LT-2W
A0509LT-2W
A0512LT-2W
A0515LT-2W
B0505LT-2W
B0509LT-2W
B0512LT-2W
B0515LT-2W
A1205LT-2W
A1209LT-2W
A1212LT-2W
A1215LT-2W
B1205LT-2W
B1209LT-2W
B1212LT-2W
B1215LT-2W
±5
±9
±12
±15
5
±200
±111
±83
±67
400
222
167
133
±200
±111
±83
±67
400
222
167
133
82
83
84
82
80
82
84
84
±7
5
4.5-5.5
40
9
23
12
15
±5
±9
±12
±15
5
17
14
±20
±11
±8
83
84
APPLICATIONS
The A_LT-2W
& B_LT-2W Series are
84
85
82
83
85
85
specially designed for applications where a
group of polar power supplies are isolated from
the input power supply in a distributed power
supply system on a circuit board.
±7
12
10.8-13.2
40
9
23
12
15
17
These products apply to:
14
1) Where the voltage of the input power supply
is fixed (voltage variation ≤ ±10%);
OUTPUT SPECIFICATIONS
2) Where isolation is necessary between input
and output (isolation voltage ≤1000VDC);
3) Where the regulation of the output voltage
and the output ripple noise are not
demanding.
Item
Test Conditions
Min
0.2
Typ
Max
2
Units
W
Output power
Line regulation
For Vin change of 1%
±1.2
15
10% to 100% load (5V output)
10% to 100% load (9V output)
10% to 100% load (12V output)
10% to 100% load (15V output)
12.8
8.3
6.8
6.3
15
%
Such as: purely digital circuits, ordinary low
frequency analog circuits, and IGBT power
device driving circuits.
Load regulation
15
15
Output voltage accuracy
Temperature drift
See tolerance envelope graph
100% full load
0.03
150
%/°C
Ripple & Noise*
20MHz Bandwidth
75
70
mVp-p
Switching frequency
Full load, nominal input
KHz
MODEL SELECTION
A0505LT-2W
*Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power
Converter
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
COMMON SPECIFICATION
Item
Test Conditions
Min
Typ
15
Max
95
Units
%
Storage humidity
Operating temperature
Storage temperature
Lead temperature
Temp. rise at full load
Cooling
-40
-55
85
125
25
°C
MORNSUN Science& Technology co.,Ltd.
Address: 2th floor 6th building, Hangzhou
Industrial District, Guangzhou, China
Tel: 86-20-38601850
Fax: 86-20-38601272
http://www.mornsun-power.com
1.5mm from case for 10 seconds
260
Free air convection
1
Short circuit protection*
Case material
MTBF
s
Plastic(UL94-V0)
3500
K hours
g
Weight
2.1
*Supply voltage must be discontinued at the end of short circuit duration.
Note: 1.All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output load
unless otherwise specified.
2.See below recommended circuits for more details.
MORNSUN reserves the copyright
Specifications subject to change without notice.
A_LT-2W & B_LT-2W A/1-2008
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