1. For dual output models, delete suffix ‘A’ at the end of the part number and

split current equally between two outputs.

2. For single output 3000 VDC isolation, add ‘-H’ to the end of the part number.

3. For dual output 3000 VDC isolation, replace ‘A’ with ‘-H’ in the part number.

4. For package type see connections table.

5. Single & dual output 1 kV models can have optional pinout, add suffix ‘-X’ to

part number

6. Operation at no load will not damage device but may not meet all specifications.

Notes

06-July-12

Specification

1 Watt

•

Single & Dual Output

•

SMD Package

•

Industry Standard Pinouts

•

1000 VDC Isolation, 3000 VDC Optional

•

MTBF >3.5 MHrs

•

40 º C to +85 º C Operation

•

3 Year Warranty

ISF Series

Input

Input Voltage Range

• Nominal ±10%

Input Reverse Voltage

• None

Protection

Output

Output Voltage

•

See table

Minimum Load

Line Regulation

• 1.2%/1%

∆ Vin

Load Regulation

• 7.5% max for a 10-100% load change

Setpoint Accuracy

• 100-110% of nominal at 10% load

Ripple & Noise

• Single output: 100 mV pk-pk,

Dual output: 75 mV pk-pk,

20 MHz bandwidth

Temperature Coefficient

• 0.03%/°C

General

Efficiency

• See table

Isolation Voltage

• 1000 VDC standard, 3000 VDC optional

Isolation Resistance

Ω

Switching Frequency

• 5/12 V input: 100 kHz, 24 V input: 500 kHz

typical at nominal input, full load

MTBF

• >3.5 MHrs to MIL-HDBK-217F at 25 °C, GB

Environmental

Operating Temperature

• -40 °C to +85 °C, full load

Storage Temperature

• -55 °C to +125 °C

Case Temperature

• 105 °C max

Cooling

• Convection-cooled

Lead Temperature

• 260 °C, 0.06 in (1.5 mm) from case, 10 s

xppower.com

3.3 VDC

3.3 V

300 mA

73%

5.0 V

200 mA

74%

5 VDC

3.3 V

300 mA

72%

5.0 V

200 mA

77%

9.0 V

110 mA

76%

12.0 V

84 mA

79%

15.0 V

67 mA

78%

12 VDC

5.0 V

200 mA

69%

9.0 V

110 mA

73%

12.0 V

84 mA

73%

15.0 V

67 mA

74%

24 VDC

3.3 V

300 mA

69%

ISF2403A

5.0 V

200 mA

70%

9.0 V

110 mA

72%

12.0 V

84 mA

75%

15.0 V

67 mA

76%

24.0 V

42 mA

77%

ISF2424A

Mechanical Details

Connections

1234 5

87 6

9

10

12

4 5

7

10

Recommended Footprint

0.400

(10.16)

0.300

(7.62)

0.100

(2.54)

0.010

(0.25)

0.100

(2.54)

0.100

(2.54)

0.01

(0.25)

0.053

(1.35)

0.02 (0.25)

5

0.335 (8.5)

0.051

(1.30)

0.010

(0.25)

0.079

(2.00)

0.079

(2.00)

0.039

(1.00)

0.039

(1.00)

0.071

(1.80)

0.047

(1.20)

0.024

(0.60)

0.600 (15.24)

0.500 (12.70)

0.600 (15.24)

0.500 (12.70)

Top View grid: 0.1 x 0.1 in (2.54 x 2.54 mm)

A1

Package A

Package B

Package C

A2

B1

C1

B2

Top View

Side View

Top View

Side View

12

4

5

8

1234

5

876

7

8

10

11

12

12 3

5 6

Top View

Side View

No.

O/P

Isolation

Pinout

Package

+Vin

-Vin

-Vout

0 V

+Vout

N/C

1

1 kV

Standard

B1

2

1

N/A

4

5

3,6,7,8

1

1 kV

Optional ‘-X’

B2

2

1

N/A

4

5

8

1

3 kV

Optional ‘-H’

C1

2

1

N/A

5

8

3,6,7,

10,11,12

2

1 kV

Standard

A1

2

1

5

4

7

3,6,8,9,10

2

1 kV

Optional ‘-X’

A2

2

1

5

4

7

10

2

3 kV

Optional ‘-H’

C1

2

1

6

5

8

3,7,10,

11,12

1. All dimensions in inches (mm)

2. Tolerance: ±0.010 (±0.25)

3. Weight: 0.004 lbs (1.7 g)

4. Pin tolerance: ±0.004 (±0.10 mm)

Notes