LM2665: Voltage divide into 3

Kum Hoo Lee

Part Number: LM2665
Other Parts Discussed in Thread: TPS60500,

Hi,

Understand that this ic can do voltage divide into half (Vin/2). May I know is there anyway that I can use it to divide input voltage/power into 3 (Vin/3)?

Hope to hear from you soon.

Best regards,

over 8 years ago

0 Youhao Xi over 8 years ago

TI__Guru* 78640 points

Thank you for considering the LM2665. I cannot think of a way to achieve Vin/3 with this device. Could you select a charge pump with programmable output like TPS60500 instead?

0 Kum Hoo Lee over 8 years ago in reply to Youhao Xi

Expert 1855 points

Dear Youhao,

thanks for the reply. Can I check with you, is TPS60500 output able to follow Vin and divide by 3? As per my understanding, it only able to set the output voltage to a fix value even for adjustable output, please correct me if I am wrong. Thank you so much for your help.

Best regards,

0 Youhao Xi over 8 years ago in reply to Kum Hoo Lee

TI__Guru* 78640 points

Figure 6 in the datasheet describes how to produce 1/3 Vin. Hope this closes the issue.

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LM2665: Voltage divide into 3