Part Number: LM2766 Other Parts Discussed in Thread: LM2765 , , LM2665 , MAX660 The popular MAX660, and one of TI's derivative, LM2665, could also be used as voltage splitter. A "Splitting Vin in Half" circuit is illustrated in the section 10.3 of MAX660…
Hi Eaml,
have you thought about generating a negative supply voltage by the help of a charge pump voltage inverter like the TPS60400 or MAX660, e.g.?
Kai
Hi Dhaivat,
the MAX660 switches at arround 10kHz... Could this be your 11.4kHz noise??
The switching frequency of MAX660 can be changed from 10kHz to 80kHz. Have you checked this? Does this make a difference?
The +5V supply is generated from the +12V…
Thank you for your re-consideration.
Note the MAX660 apparently has the same problem!
Should we have an expectation that TI will do something about this? (Like immediately changing the documentation and consider repairing the design?)
Hallo,
I use the MAX660 to double the Voltage to almost 7 Volts. You can use this to power the LM35.
The LM35 can never output more than 1.5 Volt. So no trouble.
Or you can use the LMT84. You can use the 3.3 Volt to power the sensor and it can output max…
Other Parts Discussed in Thread: PGA2311 , MAX660 Does the PGA2311 require that the VA+ power pin comes up before VD+, or just that VD+ to VA+ is separated by less that +/-0.3V? Can SCR latch up still occur if VA+ pin is shorted to VD+?
I'm seeing latent…
Maxim offers a lot of unregulated charge pumps for doubling the voltage. I'd try the MAX660. Maxim's homepage tells: "The MAX660 can also double the output voltage of an input power supply or battery, providing +9.35V at 100mA from a +5V input". This…
Other Parts Discussed in Thread: BQ24314 , BQ24032A , BQ27510-G1 , MAX660 Hello Everyone,
I'm designing a portable device. Below is the schematic for the power management part. http://www.4shared.com/photo/5WFqrMHr/screenshot_power_mngmt_Altium.html
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