NON-ISOLATED DC/DC CONVERTERS
2.4 Vdc - 5.5 Vdc Input
Input Specifications
0.75 Vdc - 3.63 Vdc/10 A Output
Input Voltage
Parameter
Min
2.4 V
Typ
-
Max
5.5 V
Notes
Vo, set ≤ Vin-0.5 V
Input Current (full load)
Input Current (no load)
Remote Off Input Current
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=1.5 V
Vo=1.2 V
Vo=0.75 V
-
-
-
-
-
-
-
-
7.0 A
5.5 A
4.0 A
3.5 A
3.0 A
2.0 A
80 mA
15 mA
8.0 A
9.5 A
9.0 A
7.5 A
6.0 A
4.0 A
-
-
Input Reflected Ripple Current (pk-pk)
-
140 mA
-
Tested with two 100 uF/10 V tantalum
input capacitors & simulated source
I t Inrush Current Transient
0.2 A s
Input Reflected Ripple Current (rms)
2
Turn-on Voltage Threshold
Turn-off Voltage Threshold
-
-
-
-
40 mA
-
2.2 V
2.0 V
-
-
-
2
impedance of 1uH, 5 Hz to 20 MHz.
Note : All specifications are typical at 25 ° C unless otherwise stated.
Output Specifications
Parameter
Output Voltage Set Point
Min
-2% Vo,set
Typ
-
Max
2% Vo,set
Notes
Vin=5 V, lo=lomax full load
Over all operating input
Output Voltage Set Point
-3% Vo,set
-
3% Vo,set
voltages, resistive loads and
temperature conditions
1.5 A s
Load Regulation
Line Regulation
Regulation Over Temperature
(-40 ° C to +85 ° C)
Output Current
Current Limit Threshold
Short Circuit Surge Transient
Ripple and Noise (pk-pk)
Ripple and Noise (rms)
Turn on Time
Overshoot at Turn on
-
-
-
0A
15 A
-
-
-
-
-
0.4% Vo,set
0.3% Vo,set
0.5% Vo,set
-
-
-
25 mV
8 mV
4 mS
0% Vo,set
-
-
-
10 A
27 A
2
50 mV
15 mV
8 mS
3% Vo,set
Io=Iomin to Iomax
Vin=Vinmin to Vinmax
Tref=Tamin to Tamax
Tested with 0-20 MHz, 10 uF/
16 V tantalum capacitor &
1 uF/10 V TDK ceramic
capacitor at the output
Output Capacitance
ESR ≥ 1m ohm
ESR ≥ 10m ohm
0 uF
0 uF
-
-
1000 uF
4700 uF
Transient Response
50% ~ 100% Max Load
Settling Time
100% ~ 50% Max Load
Settling Time
V O =3.3 V
-
-
-
-
130 mV
50 uS
150 mV
50 uS
-
-
-
-
di/dt=2.5 A/uS; Vin=5 V; and
with two 150 uF/16 V tantalum
capacitors & 1 uF/10 V ceramic
capacitor at the output
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? www.belfuse.com
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