
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
5 Vdc - 24 Vdc Input 0.9 Vdc - 3.3 Vdc/3 A Output
Output Specifications
Parameter
Min
3.200 V
2.425 V
1.746 V
1.470 V
1.176 V
0.882 V
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0 A
4 A
-
-
-
-
-
-
-
-
-
-
0 uF
Typ
3.3 V
2.5 V
1.8 V
1.5V
1.2 V
0.9 V
±10 mV
±10 mV
±5 mV
±5 mV
±5 mV
±3 mV
±25 mV
±15 mV
±10 mV
±10 mV
±8 mV
±5 mV
±30 mV
±25 mV
±20 mV
±15 mV
±10 mV
±8 mV
-
-
0.8 A
2
s
30 mV
70 mV
70 mV
60 mV
60 mV
50 mV
50 mV
7 mS
0%
-
Max
3.400 V
2.575 V
1.854 V
1.530 V
1.224 V
0.918 V
±20 mV
±15 mV
±10 mV
±10 mV
±10 mV
±7.5 mV
±45 mV
±35 mV
±25 mV
±20 mV
±15 mV
±13 mV
±60 mV
±45 mV
±33 mV
±27 mV
±22 mV
±16 mV
3 A
8 A
1.5 A
2
s
50 mV
130 mV
100 mV
100 mV
100 mV
100 mV
100 mV
10 mS
3%
1200 uF
Notes
Output Voltage Set Point
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=0.9 V
Test conditions:
Io=50% full load.
Line Regulation
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=0.9 V
Load Regulation
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=0.9 V
Regulation Over Temperature (-40
°
C to +85
°
C)
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=0.9 V
Output Current Range
Output DC Current Limit
Short Circuit Surge Transient
Ripple and Noise (rms)
Ripple and Noise (pk-pk)
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=0.9 V
Test conditions:
0-20 MHz BW, with 1 uF
/16 V ceramic capacitor
at the output.
Turn on Time
Overshoot at Turn on
Output Capacitance
Transient Response
50% ~ 100%
Max Load
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
-
-
-
-
-
-
-
-
150 mV
50 uS
150 mV
50 uS
100 mV
50 uS
100 mV
50 uS
200 mV
100 uS
200 mV
100 uS
150 mV
100 uS
150 mV
100 uS
100% ~ 50%
Max Load
3.3 V
50% ~ 100%
Max Load
100% ~ 50%
Max Load
0.9 V-2.5 V
Test conditions:
di/dt = 0.5 A/us, with
220 uF external
capacitor at the output.
Note:
All specifications are typical at nominal input, full load at 25
°
C
unless otherwise stated.