Powersolve PMQ7250 Series - Manual (Page 2)

Powersolve Electronics Ltd. 8A Arnhem Road, Newbury, RG14 5RU. England
Tel: 01635 521858 Fax: 01635 523771 Email: [email protected]
www.powersolve.co.uk
DC-DC Switching Regulator
Test Configurations
Trim resistors for common output voltages
PMQ7250-1 PMQ7250-2
Output Voltage Trimming
Resistor values are in Ω, Vout is desired output voltage:
Formula: PMQ7250-1 Formula: PMQ7250-2
Rtrim = 10500 -3480 = Resistor Value Rtrim = 10500 -1000 = Resistor Value
Vout-3.018 Vout-5.021
Example: Trim to 5V Example: Trim to 12V
Rtrim = 3037.8 -3480 = 1817Ω Rtrim = 10500 -1000 = 504Ω
5 -3.018 12 -5.021
V out Resistor (kΩ) Vout Resistor (kΩ)
3V open cct 5V open cct
4V 7.212K 6V 9.72K
5V 1.817K 7V 4.3K
6V 0.041K 8V 2.525K
9V 1.64K
10V 1.11K
11V 0.756K
12V 0.505K
13V 0.316K
14V 0.169K
15V 0.0522K
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