
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
3.3 Vdc Input 0.9 Vdc - 2.5 Vdc/7 A Output
Output Specifications
Parameter
Min
2.450 V
1.764 V
1.470 V
1.176 V
0.980 V
0.882 V
-
-
-
-
-
-
-
-
-
-
0 A
8.4 A
Typ
2.5 V
1.8 V
1.5 V
1.2 V
1.0 V
0.9 V
±
3 mV
±
1 mV
±
3 mV
±
1 mV
±
25 mV
±
15 mV
±
15 mV
±
10 mV
±
8 mV
±
8 mV
-
-
0.08 A
2
s
10 mV
40 mV
40 mV
7 mS
0%
-
Max
2.550 V
1.836 V
1.530 V
1.224 V
1.020 V
0.918 V
±
10 mV
±
5 mV
±
10 mV
±
5 mV
±
40 mV
±
30 mV
±
30 mV
±
20 mV
±
15 mV
±
15 mV
7 A
17.5 A
0.12 A
2
s
20 mV
80 mV
70 mV
15 mS
1%
2200 uF
Notes
Output Voltage Set Point
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=1.0 V
V
O
=0.9 V
Test conditions:
Vin=3.3 V, Io= full load
Line Regulation
V
O
=1.5 V-2.5 V
V
O
=0.9 V-1.2 V
Load Regulation
V
O
=1.5 V-2.5 V
V
O
=0.9 V-1.2 V
Regulation Over Temperature
(-40
°
C to +85
°
C) V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=1.0 V
V
O
=0.9 V
Output Current
Current Limit Threshold
Short Circuit Surge Transient
Ripple and Noise (rms)
-
-
-
-
-
-
V
O
=2.5 V-0.9 V
Ripple and Noise (pk-pk)
V
O
=2.5 V-1.2 V
V
O
=1.0 V-0.9 V
Test condition: 0-20 MHz BW,
with a 1 uF ceramic capacitor
and 10 uF aluminum capacitor
at the output.
Turn on Time
Overshoot at Turn on
Output Capacitance
Transient Response
0 uF
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
-
-
-
-
-
-
-
-
-
-
-
-
120 mV
40 uS
120 mV
40 uS
100 mV
40 uS
100 mV
40 uS
50 mV
40 uS
50 mV
40 uS
180 mV
80 uS
180 mV
80 uS
150 mV
80 uS
150 mV
80 uS
100 mV
80 uS
100 mV
80 uS
50% ~ 100%
Max Load
100% ~ 50%
Max Load
Vo=1.8 V-
2.5 V
50% ~ 100%
Max Load
100% ~ 50%
Max Load
Vo=1.5 V
50% ~ 100%
Max Load
100% ~ 50%
Max Load
Vo=0.9 V-
1.2 V
Test conditions:
di/dt = 0.5 A/uS; Vin = 3.3 V;
without any external capacitor
at the output.
Note:
All specifications are typical at nominal input, full load at 25
°
C
unless otherwise stated.