MORNSUN reserves the copyright

Specifications subject to change without notice.

A_LT-2W & B_LT-2W

A/1-2008

Page 1 of 2

A_LT-2W & B_LT-2W Series

2W, FIXED INPUT, ISOLATED & UNREGULATED,

DUAL/SINGLE OUTPUT, SMD, DC-DC CONVERTER

multi-country patent protection

RoHS

PRODUCT PROGRAM

Input

Output

Voltage (VDC)

Current (mA)

Part

Number

Nominal

Range

Voltage

(VDC)

Max

Min

Efficiency

(%, Typ)

A0505LT-2W

±5

±200

±20

82

A0509LT-2W

±9

±111

±11

83

A0512LT-2W

±12

±83

±8

84

A0515LT-2W

±15

±67

±7

82

B0505LT-2W

5

400

40

80

B0509LT-2W

9

222

23

82

B0512LT-2W

12

167

17

84

B0515LT-2W

5

4.5-5.5

15

133

14

84

A1205LT-2W

±5

±200

±20

83

A1209LT-2W

±9

±111

±11

84

A1212LT-2W

±12

±83

±8

84

A1215LT-2W

±15

±67

±7

85

B1205LT-2W

5

400

40

82

B1209LT-2W

9

222

23

83

B1212LT-2W

12

167

17

85

B1215LT-2W

12

10.8-13.2

15

133

14

85

OUTPUT SPECIFICATIONS

Item

Test Conditions

Min

Typ

Max

Units

Output power

0.2

2

W

Line regulation

For Vin change of 1%

±1.2

10% to 100% load (5V output)

12.8

15

10% to 100% load (9V output)

8.3

15

10% to 100% load (12V output)

6.8

15

Load regulation

10% to 100% load (15V output)

6.3

15

%

Output voltage accuracy

See tolerance envelope graph

Temperature drift

100% full load

0.03

%/

°C

Ripple & Noise*

20MHz Bandwidth

75

150

mVp-p

Switching frequency

Full load, nominal input

70

KHz

*Test ripple and noise by

“parallel cable” method. See detailed operation instructions at Testing of Power

Converter

Section, application notes.

COMMON SPECIFICATION

Item

Test Conditions

Min

Typ

Max

Units

Storage humidity

95

%

Operating temperature

-40

85

Storage temperature

-55

125

Lead temperature

15

25

Temp. rise at full load

1.5mm from case for 10 seconds

260

°C

Cooling

Free air convection

Short circuit protection*

1

s

Case material

Plastic(UL94-V0)

MTBF

3500

K hours

Weight

2.1

g

*Supply voltage must be discontinued at the end of short circuit duration.

FEATURES

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

APPLICATIONS

The

A_LT-2W

&

B_LT-2W

Series

are

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.

These products apply to:

1) Where the voltage of the input power supply

is fixed (voltage variation

≤ ±10%);

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.

Such as: purely digital circuits, ordinary low

frequency analog circuits, and IGBT power

device driving circuits.

MODEL SELECTION

A0505LT-2W

Product Series

Input Voltage

Output Vol tage

Package Style

Rated Power

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

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.