NDS Series: 10W / 3.0A DC/DC Converters
36-75V Input
1.5V, 1.8V, 2.5V, 3.3V and 5.0V Outputs
Output Specifications
Product Specifications
Nov 2001
All specifications apply over input voltage, output load and temperature range, unless otherwise noted.
NDS03ZB : 1.8V/3.0A
Parameter
Output Voltage
Setpoint Accuracy
Output Current
Line Regulation
Load Regulation
Dynamic Regulation
Peak Deviation
Settling Time
Output Voltage Ripple*
Admissible Load
Capacitance
Output Current Limit
Threshold
Switching Frequency
Temperature
Coefficient
Trim Range
Vo
Io
Conditions/Description
Vin.Nom, Io = 1.5A, 25°C
Vin.Min to Vin.Max
Vin.Min to Vin.Max, 50%
Io.Max
Vin.Nom, Io.Min to Io.Max
50-100% Io.Max load step
change.
to 1% error band
Vin.Min to Vin.Max, Io.Min to
Io Max, 20MHz Bandwidth
Io.Max, Vin.Nom
Vout
≤0.90
Vo.Nom
Vin.Nom, Io.Max
Io.Min to Io.Max, Vin.Min to
Vin.Max
1.62
Min
1.78
0
Nom
1.80
Max
1.82
3.0
25
25
250
1,150
75
2,200
120
400
0.02
1.98
200
Units
Vdc
Adc
mV
mV
± mV
µs
mVp-p
µF
%Io.Max
kHz
%Vo/°C
Vo
Vr
Comax
Icl
Fs
Tco
Vt
50
* Measured with a 1µF ceramic across the output pins
NDS03ZB Characteristic curves
Output Voltage Vs Load
Vout (V)
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
0.00
0.60
1.20
1.80
2.40
3.00
3.60
4.20
4.80
5.40
6.00
Efficiency Vs Load
Efficiency
90%
80%
70%
60%
50%
40%
Vin Min
Vin Nom
Vin Max
30%
20%
10%
0%
0.00
0.15
0.30
0.60
0.90
1.20
1.50
1.80
2.10
Vin Min
Vin Nom
Vin Max
2.40
2.70
3.00
Iout (A)
Iout (A)
5-Nov-01
Rev 1.1
www.power-one.com
Page 4 of 14
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