GS-R51212S 查看數據表（PDF） - STMicroelectronics

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GS-R51212S

31WTRIPLE OUTPUT STEP-DOWN SWI

STMicroelectronics 

GS-R51212S/GS-R51515S

Figure 2 - Reset and Power Fail waveforms.

Auxiliary Outputs

The auxiliary outputs (±12V or ±15V) are externally

adjustable in symmetric way by connecting a

resistor Ra between pin 10 (ADJ.) and pin 8

(Vo + 12/+15V), according to the following formula:

GS−R51212S

GS−R51515S

Ra = 32.66 × Vo − 4.229

12.485 − Vo

Ra = 38.66 × Vo − 4.39

15.252 − Vo

where Vo is the desired dual output voltage.

Example: Vo = ±5V.

Ra (GS−R51212S) = 3.36kΩ

Ra (GS−R51515S) = 2.3kΩ

Example: Vo = ±10V.

Ra (GS−R51212S) = 75.8kΩ

Ra (GS−R51515S) = 41.3kΩ

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