Powersolve PMQ7861 Series Uživatelský manuál stáhnout pdf (Strana 2)

Powersolve Electronics Ltd. 8A Arnhem Road, Newbury, RG14 5RU. England

Tel: 01635 521858 Fax: 01635 523771 Email: sales@powersolve.co.uk

www.powersolve.co.uk

DC-DC Switching Regulator

Test Configurations

Output Voltage Trimming

PMQ7861

Resistor values are in Ω, Vout is desired output voltage:

Formula:

Rtrim = 3037.8

-200

Vout-1.22

Example:

Trim to 3.3V, Rtrim = 3037.8

-200 = 1260Ω

3.3 -1.22

Output Voltage Resistor (kΩ)

1.22V open cct

1.25V 101.06

1.5V 10.65

1.8V 5.04

2.5V 2.173

3.3V 1.26

5.0V 0.603

12V 0.079

Trim resistors for common output voltages

1 2 3

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Powersolve PMQ7861 Series Uživatelský manuál Strana 2