
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
2.4 Vdc - 5.5 Vdc Input
Input Specifications
Parameter
Input Voltage
Vo
≤
1.5 V
Vo=1.8-2.5 V
Vo=3.3 V
Input Current (full load)
Vo=3.3 V
Vo=1.8 V
Vo=0.75 V
Input Current (no load)
Remote Off Input Current
0.75 Vdc - 3.63 Vdc/16 A Output
Min
2.4 V
3.0 V
4.5 V
-
-
-
-
-
Typ
-
-
-
11.23 A
6.47 A
3.08 A
80 mA
10 mA
Max
5.5 V
5.5 V
5.5 V
12.89 A
13.55 A
6.67 A
-
22 mA
Notes
Tested with two 100 uF/10 V tantalum
input capacitors (P/N:
TPSC107K010R0075 AVX) & simulated
source impedance of 1 uH, 5 Hz to
20 MHz.
Input Reflected Ripple Current (pk-pk)
-
100 mA
-
Input Reflected Ripple Current (rms)
-
40 mA
-
I
2
t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
-
-
-
0.15 A
2
s
2.2 V
2.0 V
0.3 A
2
s
-
-
Output Specifications
Parameter
Min
Typ
-
Max
Notes
Output Voltage Set Point
-2%Vo,set
2%Vo,set
Vin=5 V, lo=lomax full load
Over all operating input
voltages, resistive loads and
temperature conditions
Io=Iomin to Iomax
Vin=Vinmin to Vinmax
Output Voltage Set Point
-3%Vo,set
-
3%Vo,set
Load Regulation
Line Regulation
Regulation Over Temperature
(-40 C to +85
°
C)
Output Current
Current Limit Threshold
Short Circuit Surge Transient
-
-
0.4%Vo,set
0.3%Vo,set
-
-
-
0.5%Vo,set
-
Tref=Tamin to Tamax
0 A
19 A
-
-
-
16 A
35 A
2 A
2
s
Tested with 0-20 MHz,
10 uF/16 V tantalum capacitor
& 1 uF/10 V TDK ceramic
capacitor at output
1.6 A
2
s
Ripple and Noise (pk-pk)
-
25 mV
50 mV
Ripple and Noise (rms)
-
8 mV
15 mV
Turn on Time
Overshoot at Turn on
Output Capacitance
-
-
4 mS
0%Vo,set
-
-
8 mS
3%Vo,set
1000 uF
5000 uF
ESR
≥
1mohm
ESR
≥
10mohm
0 uF
0 uF
Transient Response
50% ~ 100% Max Load
Settling Time
100% ~ 50% Max Load
Settling Time
Transient Response
50% ~ 100% Max Load
Settling Time
100% ~ 50% Max Load
Settling Time
Note
: All specifications are typical at nominal input (Vin=5 V), full load at 25
°
C
unless otherwise stated.
-
-
-
-
300 mV
50 uS
300 mV
50 uS
-
-
-
-
V
O
=0.75 V -
3.3 V
di/dt=2.5 A/ uS; Vin=5 V; and
with 10 uF/16 V tantalum
capacitor & 1 uF/10 V ceramic
capacitor at output
-
-
-
-
150 mV
100 uS
150 mV
100 uS
-
-
-
-
V
O
=0.75 V -
3.3 V
di/dt=2.5 A/ uS; Vin=5 V; and
with two 150 uF/10 V tantalum
capacitors & 1 uF/10 V ceramic
capacitor at output