Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302

• Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

NON-ISOLATED DC/DC CONVERTERS

9.0 Vdc - 18 Vdc Input

-12 Vdc/1 A -15 Vdc/0.8 A Output

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

Vo=-12 V

Vo=-15 V

-11.7 V

-14.7 V

-12 V

-15 V

-12.3 V

-15.3 V

Test condition: Vin=12 V,

lout=full load

Line Regulation

-

20 mV

35 mV

Load Regulation

-

25 mV

45 mV

Regulation Over Temperature

(-40

°C to +85 °C)

-

90 mV

140 mV

Output Current

Vo=-12 V

Vo=-15 V

0.030 A

0.030 A

-

-

1.0 A

0.8 A

Output DC Current Limit

Vo=-12 V

Vo=-15 V

1.5 A

1.5 A

-

-

2.5 A

2.5 A

Ripple and Noise (rms)

-

35 mV

50 mV

Ripple and Noise (pk-pk)

-

100 mV

150 mV

Test conditions: BW = 0-20MHz;

with one 68 uF tantalum

capacitor and one 0.1 uF

ceramic capacitor at the output

Turn On Time

Vo=-12 V

Vo=-15 V

-

-

30 mS

200 mS

45 mS

300 mS

Overshoot at Turn on

-

0%

5%

Output Capacitance

68 uF

-

100 uF

Transient Response

Overshoot

-

240mV

320 mV

50% ~ 75%

Max Load

Settling Time

-

150 uS

200 uS

Overshoot

-

240 mV

320 mV

75% ~ 50%

Max Load

Settling Time

Vo=-12 V

-

150 uS

200 uS

Overshoot

-

300mV

400 mV

50% ~ 75%

Max Load

Settling Time

-

150 uS

200 uS

Overshoot

-

300 mV

400 mV

75% ~ 50%

Max Load

Settling Time

Vo=-15 V

-

150 uS

200 uS

di/dt = 0.5 A/ uS; Vin = 12 V;

and with one 68 uF tantalum

capacitor at the output

General Specifications

Parameter

Min

Typ

Max

Notes

Efficiency

85%

87%

-

Measured at Vin=12 V, full load

Switching Frequency

350 kHz

400 kHz

450 kHz

MTBF

TBD

°C)

Dimensions (surface mount)

Inches (L × W × H)

Millimeters (L × W × H)

0.78 x 0.7 x 0.32

19.81 x 17.78 x 8.13

Dimensions (vertical)

Inches (L × W × H)

Millimeters (L × W × H)

0.7 x 0.308 x 0.65

17.78 x 7.82 x 16.51

Weight

-

5 g

-

Note: All specifications are typical at 25

°C unless otherwise stated.