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YNC12S20 DC-DC Converter Data Sheet
9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 20 A
Electrical Specifications (continued)
Conditions: T A =25 oC, Airflow=200 LFM (1 m/s), Vin=12 VDC, Vout = 0.7525 – 5.5 V, unless otherwise specified.
PARAMETER
NOTES
MIN
TYP
MAX UNITS
OUTPUT CHARACTERISTICS
Output Voltage Set Point (no load)
-1.5
Vout
+1.5
%Vout
Output Regulation
Over Line
Over Load
Full resistive load
From no load to full load
2
10
mV
mV
Output Voltage Range
(Over all operating input voltage, resistive load
-2.5
+2.5
%Vout
and temperature conditions until end of life )
Output Ripple and Noise - 20MHz bandwidth (Fig. F)
Over line, load and temperature
Peak-to-Peak
Peak-to-Peak
V OUT = 0.7525 VDC
V OUT = 5.0 VDC
10
35
15
50
mV P-P
mV P-P
External Load Capacitance
Plus full load (resistive)
Min ESR > 1m ?
Min ESR > 10 m ?
1,000
5,000
μF
μF
Output Current Range
Output Current Limit Inception (I OUT )
Output Short-Circuit Current , RMS Value
Short=10 m ? , continuous
0
26
6
20
A
A
A
DYNAMIC RESPONSE
Load current change from 10A – 20A, di/dt = 5 A/μS
Settling Time (V OUT < 10% peak deviation)
Unloading current change 20A – 10A, di/dt = -5 A /μS
Settling Time (V OUT < 10% peak deviation)
EFFICIENCY
Co = 100μF ceramic + 470 μF POS
Co = 100 μF ceramic + 470 μF POS
Full load (20A)
V OUT = 5.0 VDC
V OUT = 3.3 VDC
V OUT = 2.5 VDC
V OUT = 2.0 VDC
V OUT = 1.8 VDC
V OUT = 1.5 VDC
V OUT = 1.2 VDC
V OUT = 1.0 VDC
V OUT = 0.7525 VDC
140
45
140
45
94
91
89
87
86
84
81.5
78
73.5
mV
μs
mV
μs
%
%
%
%
%
%
%
%
%
ZD-02137 Rev. 2.1 21-Jun-10
Page 4 of 28
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