Hi Jasper
I have decided to use the LMR62014 instead. According to webench, it will go down to 5% dutycycle and still work with 12V in and 12.6V out. My Imax is approx. 0.6A at 12.6V. Input is approx. 9V, but can vary in extreme conditions between 7V…
Other Parts Discussed in Thread: LM741 , LMR62014 , PMP9779 Requirement:
Vout = 16V, 250mA
Vin = 12V, 2Amp
Supply must be with current limit of 250mA
It should also have short circuit protection.
Tried Solution:
We used simple switcher…
Hi Mike,
LM27313 switch current limit is 0.8A(min) so it cannot work in the condition of Vin=8.5V, Vout=12V@1A.
May I know the minimum input voltage? LMR62014 is one choice which could work in this condition.
Part Number: LM2623-Q1 Other Parts Discussed in Thread: TPS61089 , LMR62014 , TPS61170 Hi,
I am currently using the LM2623-Q1 in one of my design with the following requirements:
- Vin [6;8.4V]
- Vout 12V
- Load: <= 0.4A
I followed the reference…
Hi Sean,
The datasheet date actually shows customer when this part is designed. So LM2621 is designed in 2004. The TPS61175 is designed in 2008. LMR62014 is designed in 2011.
LMR62014, TPS61089, TPS61378-Q1 should all work for this application.
Hi Wen,
The feedback voltage just sets the minimum voltage that the output voltage can be. For example if the FB voltage is 1.2V the minimum set output voltage would be 1.2V.
When the LMR62014 is in shutdown mode the IQ current is typically smaller…
Hi Prathik,
Sorry that there is no Junction-case and junction-board thermal resistance data available for LMR62014 after internal check. You can estimate the thermal performance according to Junction-Ambient Thermal Resistance.
BR
I designed a new layout, and I am currently testing it out with the LMR62014 chip. I am able to produce 12v for about a half hour, and then the output jumps up to 24v while the battery gets pulled lower and lower until the battery gives out. I can see…
