NDS Series: 10W / 3.0A DC/DC Converters
36-75V Input
1.5V, 1.8V, 2.5V, 3.3V and 5.0V Outputs
Product Specifications
Nov 2001
Output Specifications
All specifications apply over input voltage, output load and temperature range, unless otherwise noted.
NDS03ZD : 2.5V/3.0A
Parameter
Conditions/Description
Min
Output Voltage
Setpoint Accuracy
Vo
Vin.Nom, Io = 1.5A, 25°C
2.47
Output Current
Io
Vin.Min to Vin.Max
0
Line Regulation
Vin.Min to Vin.Max, 50%
Io.Max
Load Regulation
Vin.Nom, Io.Min to Io.Max
Dynamic Regulation
50-100% Io.Max load step
Peak Deviation
change.
Settling Time
to 1% error band
Output Voltage Ripple
Vr Vin.Min to Vin.Max, Io.Min to
Io Max, 20MHz Bandwidth
Admissible Load
Comax
Io.Max, Vin.Nom
Capacitance
Output Current Limit
Icl
Vout ≤0.90 Vo.Nom
120
Threshold
Switching Frequency
Fs
Vin.Nom, Io.Max
Temperature
Tco
Coefficient
Trim Range
Vt
Io.Min to Io.Max, Vin.Min to 2.25
Vin.Max
* Measured with a 1µF ceramic across the output pins
Nom
2.5
50
400
Max
Units
2.53
Vdc
3.0
Adc
50
mV
50
mV
250
1,150
75
± mV
µs
mVp-p
2,200
µF
200 %Io.Max
kHz
0.02 %Vo/°C
2.75
Vo
NDS03ZD Characteristic curves
Vout (V)
3.00
2.50
2.00
1.50
1.00
0.50
0.00
Output Voltage Vs Load
Vin Min
Vin Nom
Vin Max
Efficiency
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
Efficiency Vs Load
Vin Min
Vin Nom
Vin Max
Iout (A)
Iout (A)
5-Nov-01
Rev 1.1
www.power-one.com
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