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

3

NON-ISOLATED DC/DC CONVERTERS

2.4 Vdc - 5.5 Vdc Input, 0.6 Vdc - 3.63 Vdc /6 A Outputs

January 13, 2011

Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.

Output Specifications

Parameter

Min

Typ

Max

Unit

Notes

Output Voltage Set Point

-1.5

-

+1.5

%Vo,set

with 0.5% tolerance for external resistor

used to set output voltage

Output Voltage

-3.0

-

+3.0

%Vo,set

Over all operating input voltage, resistive

load, and temperature conditions until end

of life

Adjustment Range

1

0.6

-

3.63

V

selected by an external resistor

Remote Sense Range

-

-

0.5

V

Load Regulation

-

-

-

-

10

5

mV

mV

Line Regulation

-

-

-

-

0.4

10

%Vo,set

mV

Temperature Regulation

(-40°C to +85°C)

-

-

0.4

%Vo,set

Ripple and Noise (pk-pk)

-

25

35

mV

Ripple and Noise (rms)

-

10

15

mV

capacitors)

Output Current Range

0

-

6

A

Output DC Current Limit

-

-

200

%Io,max

Hiccup Mode

Output Short-Circuit Current

-

0.23

-

A

Vo≤250mV, Hiccup Mode

Output Capacitance

1

ESR≥ 1 mΩ

ESR≥0.15 mΩ

ESR≥ 10 mΩ

0

0

0

-

-

-

47

1000

3000

uF

uF

uF

Without the Tunable Loop

TM

With the Tunable Loop

TM

With the Tunable Loop

TM

-

2

-

mS

Case 1: On/Off input is enabled and then

input power is applied (delay from instant

Vo, set)

Turn-On Delay Time

-

2

-

mS

Case 2: Input power is applied for at least

one second and then the On/Off input is

enabled (delay from instant at which

Von/Off is enabled until Vo =10% of Vo,

set)

Output voltage Rise time

-

5

-

mS

time for Vo to rise from10% of Vo, set to

90% of Vo, set

Output voltage overshoot

-

-

3

%Vo,set

Vin=Vin, min to Vin, max, Io=Io, min to Io,

max, With or without maximum external

capacitance

Dynamic Load Response

Peak Deviation

-

180

-

mV

△

V0%~50% of

Max Load

Settling Time

-

20

-

uS

Peak Deviation

-

170

-

mV

△

V50%~0% of

Max Load

Settling Time

-

20

-

uS

di/dt=10A/us, Vin=5V, Vo=1.8V, Ta=25°C,

Co=0

Notes: 1. External capacitors may require using the new Tunable Loop

stable as well as getting the best transient response (See the Tunable Loop

2. Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and

temperature conditions.