NKE-XSC&NKE-XDC Series
Application Notes
Output Ripple Reduction
By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max.
Component selection
Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended.
The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC/DC converter.
Inductor: The rated current of the inductor should not be less than that of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor should be
such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF (Self Resonant Frequency) should be >20MHz.
Inductor
Capacitor
C,μF
4.7
L,μH
10
SMD
Through Hole
11R103C
11R473C
11R473C
11R103C
11R473C
11R473C
11R473C
11R683C
11R104C
11R473C
11R473C
11R683C
11R104C
NKE0303XS(D)C
NKE0305XS(D)C
NKE0309XS(D)C
NKE0503XS(D)C
NKE0505XS(D)C
NKE0505X(S)DEC
NKE0509XSC
82103C
82473C
82473C
82103C
82473C
82473C
82473C
82683C
82104C
82473C
82473C
82683C
82104C
47
4.7
47
1
10
4.7
47
4.7
47
4.7
47
1
NKE0512XS(D)C
NKE0515XS(D)C
NKE1205XS(D)C
NKE1209XS(D)C
NKE1212XS(D)C
NKE1215XS(D)C
68
0.68
2.2
100
47
4.7
47
1
68
0.47
2.2
100
Package Specifications
PIN CONNECTIONS-8 PIN DIP
Mechanical Dimensions
DIP8 Package
SIP4 Package
Pin
1
Function
-VIN
4
+VIN
5
+VOUT
-VOUT
7
PIN CONNECTIONS-4 PIN SIP
Pin
1
Function
-VIN
2
+VIN
3
-VOUT
+VOUT
4
All dimensions in inches ±0.01 (mm ±0.25mm). All pins on a 0.1 (2.54) pitch and within ±0.01 (0.25) of true position.
Weight: 1.09g (SIP4) 1.25g (DIP8)
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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