Instructions

INSTRUCTION MANUAL
CCG
TDKLambda
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8/20
Output Voltage Adjustment by External Resistor or Variable Resistor
(1) In case of adjusting output voltage lower
(11) Maximum output current
In case of adjusting output voltage lower, maximum output current is until rated maximum
output current of specification.
ex)When setting 12V Model to 10.8V output, maximum output power = 10.8V×2.5A = 27W.
(12) External resister connecting method
Connect an external resistor or variable resister Ra between TRM and +Vout terminal.
To prevent the effect of noise or other, connect as short as possible because TRM terminal is
relatively high impedance.
Please refer to Table 61 when adjusting output voltage.
Output Voltage：Vout(V), External Resistor Value：Ra(kΩ)
Output voltage could be adjusted within the 10% of nominal output voltage
by external resistor Ra.
Fig.62 Basic Connection for Output Voltage Trim Down
Table 61 Equation of External Resistor and Output Voltage
+Vout
Vout
Load
TRM
+

Ra
CCG30xx03S
CCG30xx05S
CCG30xx12S
CCG30xx15S
Model
Equation of External Resistor and Output Voltage
Vout = 3.3 
16.05
22.8+Ra
Ra = 22.8
16.05
3.3Vout
Vout = 5.01 
53.95
32.3+Ra
Ra = 32.3
53.95
5.01Vout
Vout = 12.01 
450.01
63.3+Ra
Ra = 63.3
450.01
12.01Vout
Vout = 15 
738.3
74.9+Ra
Ra = 74.9
738.3
15Vout