NDS Series Data Sheet
10 W SMT DC-DC Converters, 1.5 – 5 V Output
All specifications apply over input voltage, output load and temperature range, unless otherwise noted.
NDS03ZD : 2.5 V/ 3.0A
Parameter
Conditions/Description
Min
Nom
Max
Unit
Output Voltage
Setpoint Accuracy
Output Current
V o
I o
V i nom , I o = 1.5 A, 25 ° C
V i min to V i max
2.47
0
2.5
2.53
3.0
V
A
Line Regulation
Load Regulation
Dynamic Regulation
Peak Deviation
Settling Time
V i min to V i max , 50% I o max
V i nom , I o min to I o max
50 – 100% I o max load step
change
to 1% error band
50
50
±250
1150
mV
mV
mV
μ s
Output Voltage Ripple
Admissible Load
Capacitance
Output Current Limit
Threshold
Switching Frequency
Temperature
Coefficient
Trim Range
V r
C o max
I o L
fs
Tco
Vt
V i min to V i max , I o min to I o max ,
20 MHz Bandwidth
I o max , V i nom
V o ≤ 0.90 V o nom
V i nom , I o max
I o min to I o min , V i min to V i max
120
2.25
50
400
75
2200
200
0.02
2.75
mV pp
μ F
%I o max
kHz
%V o / ° C
V o
* Measured with a 1 μ F ceramic across the output pins
Typical Characteristic Curves
Vout (V)
3.00
Output Voltage Vs Load
Efficiency
90%
Efficiency Vs Load
80%
2.50
70%
2.00
1.50
60%
50%
40%
1.00
0.50
Vin Min
Vin Nom
Vin Max
30%
20%
10%
Vin Min
Vin Nom
Vin Max
0.00
Iout (A)
0%
Iout (A)
BCD.00013 Rev. AB, 26-Aug-2010
Page 5 of 14
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