Part Number: LM2621 Hello,
In the data sheet for the LM2621 it states that PGND is pin 1 and SGND is pin 5.
However in the recommended PCB layout in the same datasheet shows pin 5 connected to the power ground and pin 1 connected to the ground of the…
Part Number: LM2621 Hi,
I am using the LM2621 device as a SEPIC converter, where I am generating a 5V voltage output from 4 to 7.5V input supply. I am not able to find any application note for the same.
Is there any document that explains the design calculations…
Part Number: LM2621 HI
My client is currently in circuit configuration with the LM2621. Circuit specifications are as follows. VIN: 3.7V to 4.2V (BAT) VOUT: 5V IOUT: 300mA The circuits are circuit based on the webench tool.
The problem is that in no-load…
Part Number: LM2621 Hello ,
I am using LM2621 in a RF Transmitter. I generating 8.5V from 5.5V. During testing we have observed that, there is a 11Khz noise getting generated from LM2621. Which is getting modulated with RF. So I am seeing 11Khz Sours…
Part Number: LM2621 Other Parts Discussed in Thread: TPS61088
I want to convert the 3.7v- 5v input to 10 v output. I prepare a circuit but did not get 10v . Output voltage is 4.88v instead of 10v.
Part Number: LM2621 Dear,
I am using LM2621 on our product - Application: step up from 3.7V to 11V (Vout) with typical application - reference circuit.
But in the absolute maximum ratings table: BOOT pins - maximum: 10V. In typical application: BOOT pin…
Part Number: LM2621 Hi,
It is recommended to use a 39-pF capacitor (CF1) connected across RF1 helps in feeding back most of the AC ripple at VOUT to the FB pin. However, in the SEPIC converter configuration (figure 18), a 33pF capacitor is used.
Please…
Other Parts Discussed in Thread: LM2621 we used LM2621MM as step up regulator to convert voltage between 3.7 to 4.6V to 5v . the pin EN is connected to GPIO of MCU working with 3v3. below the schematic . the raw input voltage is between 3,7 and 4.6v
Part Number: LM2621 Other Parts Discussed in Thread: TPS61093 , TPS61085 Tool/software: WEBENCH® Design Tools Hi, everyone!
Please help me to configure parameters of LM2621MM to set up output voltage 9V.
I'l try to use Webench to solve my problem, but…
Part Number: LM2621 Hi,
I received the following question from my customer.
The current limit is specified 2.8A(typ) in the datasheet.
How much is the dispersion of the current limit value?
They would like to know the value for their reference and don…