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
3.0 Vdc - 5.5 Vdc Input
0.75 Vdc - 3.63 Vdc/6 A Output
Input Specifications (continued)
Parameter
Min
Typ
Max
Notes
Input Current (no load)
Vo=3.3 V
Vo=0.75 V
-
100 mA
50 mA
-
Remote Off Input Current
-
10 mA
-
Input Reflected Ripple Current (pk-pk)
-
120 mA
-
Input Reflected Ripple Current (rms)
-
35 mA
-
Tested with simulated source
impedance of 1uH, 5 Hz to 20 MHz.
I
2t Inrush Current Transient
-
0.04 A
2s
Turn-on Voltage Threshold
-
2.7 V
3.0 V
Turn-off Voltage Threshold
1.8 V
2.6 V
-
Note
: All specifications are typical at 25
°C unless otherwise stated.
Output Specifications
Parameter
Min
Typ
Max
Notes
Output Voltage Set Point
-2%Vo,set
-
2%Vo,set
Vin=5 V, 50% full load
Output Voltage Set Point
-3%Vo,set
-
3%Vo,set
Over all operating input voltages,
resistive loads and temperature
conditions
Adjustment Range
0.7525 V
-
3.63 V
Selected by external resistor or
voltage
Load Regulation
-
0.4%Vo,set
-
Io=Iomin to 50% Iomax
Line Regulation
-
0.3%Vo,set
-
Vin=Vinmin to Vinmax
Temperature Regulation
-
0.4%Vo, set
-
Tref=Tamin to Tamax
Output Current
0 A
-
6 A
Current Limit Threshold
9 A
-
18 A
Short Circuit Surge Transient
-
0.32 A
2s
-
Ripple and Noise (pk-pk)
-
40 mV
70 mV
Ripple and Noise (rms)
-
10 mV
30 mV
Tested with 0-20 MHz, with
external 10 uF Tantalum
capacitor and 1 uF/10 V TDK
ceramic capacitor at the output.
Turn on Time
-
6 mS
10 mS
Overshoot at Turn on
-
3%Vo
External Load Capacitance
Min ESR
≥ 1mhom
Max ESR
≥ 10mhom
0 uF
1000 uF
3000 uF
Transient Response
50% ~ 100% Max Load
-
150 mV
-
Settling Time
-
25 uS
-
100% ~ 50% Max Load
-
150 mV
-
Settling Time
VO =0.75 V -
3.63 V
-
25 uS
-
Test conditions:
di/dt=2.5 A/ uS; Vin=5 V; with
external 10 uF Tantalum
capacitor and 1 uF/10 V TDK
ceramic capacitor at the output.
Note
: All specifications are typical at nominal input (Vin=5 V), full load at 25 °C unless otherwise stated.