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Model Selection Guide

Notes:

1. The specified maximum capacitive load is for each output.

2. Load regulation is specified for a load change of 0% to 100%. Load regulation for 3.3V

output models is ±1.0% max for a load change of 0% to 100%.

3. When measuring cross regulation, the load on one output is varied from 25% to 100%

while the other output is held at 100%.

for single output units and from each output to common for dual output models. See the typical

connection diagram & notes on page 3.

5. Transient recovery is measured to within a 1% error band for a load step change of 75% to 50%

to 25%.

6. Operation at no-load will not damage these units. However, they may not meet all

specifications.

7. 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.

Temperature Derating Curve

Model

Number

Input

Output

Over

Voltage

Protection

(VDC)

Max

Capacitive

Load

(µF Max)

Efficiency

(%, Typ)

Fuse Rating

Slow-Blow

(mA)

Voltage

(VDC)

Current

(mA, Max)

Current

(mA, Min)

Nominal

Range

Full-Load No-Load

MA1024S-03RU

24

9.0 - 36.0

440

15

3.3

2,700

0.0

3.9

1,330

85

3,000

MA1024S-05RU

24

9.0 - 36.0

480

15

5.0

2,000

0.0

6.2

1,330

87

3,000

MA1024S-12RU

24

9.0 - 36.0

475

15

12.0

833

0.0

15.0

288

88

3,000

MA1024S-15RU

24

9.0 - 36.0

475

15

15.0

667

0.0

18.0

200

88

3,000

MA1024D-05RU

24

9.0 - 36.0

495

15

±5.0

±1,000

±0.0

±15.0

900

85

3,000

MA1024D-12RU

24

9.0 - 36.0

480

15

±12.0

±417

±0.0

±15.0

133

87

3,000

MA1024D-15RU

24

9.0 - 36.0

480

15

±15.0

±330

±0.0

±18.0

90

87

3,000

MA1048S-03RU

48

18.0 - 75.0

225

15

3.3

2,700

0.0

3.9

1,330

84

1,500

MA1048S-05RU

48

18.0 - 75.0

240

15

5.0

2,000

0.0

6.2

1,330

87

1,500

MA1048S-12RU

48

18.0 - 75.0

240

15

12.0

833

0.0

15.0

288

87

1,500

MA1048S-15RU

48

18.0 - 75.0

240

15

15.0

667

0.0

18.0

200

87

1,500

MA1048D-05RU

48

18.0 - 75.0

250

15

±5.0

±1,000

±0.0

±15.0

900

85

1,500

MA1048D-12RU

48

18.0 - 75.0

240

15

±12.0

±417

±0.0

±15.0

133

88

1,500

MA1048D-15RU

48

18.0 - 75.0

240

15

±15.0

±330

±0.0

±18.0

90

88

1,500

Typical Connection

EMI Characteristics

Parameter

Standard

Criteria/Level

Radiated Emissions

EN 55032

Class A

Conducted Emissions

EN 55032

Class A

ESD

EN 61000-4-2

A

RS

EN 61000-4-3

A

EFT

EN 61000-4-4

A

Surge

EN 61000-4-5

A

CS

EN 61000-4-6

A

PFM

EN 61000-4-8

A

To meet the requirements of EN 61000-4-4 & EN 61000-4-5, an external filter capacitor

When measuring output ripple, it is recommended that an external 1.0 µF ceramic capaci-

output to common for dual output units. For noise sensitive applications, the use of 3.3 µF

capacitors will reduce the output ripple.

The Remote On/Off circuit is referenced to the minus input of the unit (pins 2 & 3). If the

On/Off input (pin 1) is connected to the minus input, the unit is shut off. If pin 1 is left

open, the unit operates normally.