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NON-ISOLATED DC/DC CONVERTERS
2.4 Vdc - 5.5 Vdc Input
Input Specifications
0.75 Vdc - 3.63 Vdc/6 A Output
Parameter
Min
Typ
Max
Notes
Input Voltage
Vo ≤ 1.5 V
Vo=1.8 V
2.5 V ≤ Vo ≤ 3.3 V
2.4 V
3.0 V
4.5 V
-
-
-
5.5 V
5.5 V
5.5 V
Input Current (full load)
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=1.5 V
Vo=1.2 V
Vo=0.75 V
-
-
-
-
-
-
-
-
-
-
-
-
4.73 A
3.66 A
4.09 A
4.31 A
3.57 A
2.40 A
Input Current (no load)
Remote Off Input Current
Vo=3.3 V
Vo=0.75 V
-
-
-
50 mA
25 mA
0.6 mA
-
-
-
I t Inrush Current Transient
0.04 A s
Input Reflected Ripple Current (pk-pk)
Input Reflected Ripple Current (rms)
2
Turn-on Voltage Threshold
Turn-off Voltage Threshold
-
-
-
-
1.8 V
120 mA
35 mA
-
2.05 V
2.0 V
-
-
2
2.4 V
-
Tested with simulated source impedance of 1
uH, 5 Hz to 20 MHz, one 1000 uF/25 V AL
capacitor and two 100 uF/ 10 V Tantalum
capacitor at the input.
Output Specifications
0.32 A s
Parameter
Output Voltage Set Point
Output Voltage Set Point
Adjustment Range Selected by
External Resistor or Voltage
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)
Min
-2% Vo,set
-3% Vo,set
0.7525 V
-
-
-
0A
9A
-
-
-
Typ
-
-
-
0.4% Vo,set
0.3% Vo,set
0.4% Vo,set
-
-
2
40 mV
10 mV
Max
2% Vo,set
3% Vo,set
3.63 V
-
-
-
6A
18 A
-
70 mV
30 mV
Notes
Vin=5 V, 50% full load
Over all operating input voltages, resistive
loads and temperature conditions
Io=Iomin to 50%Iomax to 100%Iomax
Vin=Vinmin to 50%Vinmax to 100%Vinmax
Tref=Tamin to Tamax
Tested with 0-20 MHz, with 10 uF
Tantalum capacitor & 1 uF/10 V ceramic
capacitor at the output.
Turn on Time -
Overshoot at Turn on -
Output Capacitance
6 mS
-
10 mS
3%
Min ESR ≥ 1mohm
Max ESR ≥ 10mohm
0 uF
0 uF
-
-
1000 uF
3000 uF
Transient Response
50% ~ 100% Max Load
Settling Time
100% ~ 50% Max Load
Settling Time
V O = 0.75 V -
3.63 V
-
-
-
-
130 mV
25 uS
130 mV
25 uS
-
-
-
-
di/dt=2.5 A/uS; Vin=5 V; and with 10
uF Tantalum capacitor & 1 uF/10 V
TDK ceramic capacitor at the output
Note : All specifications are typical at nominal input, full load at 25 ° C unless otherwise stated.
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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