APA18T04_05 ASTEC [Astec America, Inc], APA18T04_05 Datasheet - Page 12

• Manufacturer Part Number: APA18T04_05
• Description: 3.0-5.5Vin, 18A, Non-isolated DC - DC SIP Converter
• Manufacturer: ASTEC [Astec America, Inc]

APPENDIX A6: OUTPUT TRIM REQUIREMENT
Model: APA18T04 Series
Date: Aug 2005
Output voltage adjustment is accomplished by connecting an external resistor between the Trim Pin and Ground
Pin terminals. Resistance and Output voltage relationship is established by Equation 1. If Trim pin is left open –
default V
TRIM-UP EQUATION:
Where R
Rtrim (k? ) from
Rtrim (k? ) from
Equation
V
O, set
E96
trim
O
(V)
= 0.7525V
is the resistance value in ohms and V
0.7525
open
open
APA18
Figure 7. Trim UP test configuration (Pin Side Up)
R
trim
APA18T04 DC - DC Series
41.97
42.2
Technical Reference Note
1.2
SENSE
TRIM
GND
Vo
(
V
o
21070
23.08
23.2
. 0
1.5
7525
O
is the output voltage desired.
Rtrim
5110
1.8
15
15
)
Co1
6.95
6.98
2.5
Co2
SH 12 OF 26
LOAD
3.16
3.16
3.3