Part Number: TPS61221 Hi there,
I designed a PCB board for TPS61221 according to the datasheet.
It successfully delivery 3.3V at Vout.
The circuit is as below.
However, I found that while no load at the output. The I in (input current) is about 6…
Part Number: TPS61221 Other Parts Discussed in Thread: TPS61220 , TPS61220EVM-319 Hi,
I'm trying to incorporated a TPS61221 boost regulator with a fixed 3.3 V output into an embedded design to keep the supply voltage above 3 V as the battery drains. My…
Part Number: TPS61221 Dear Sir, please answer
I use TPS61221. Input voltage 1.7 - 5.5V. I out = 40 mA. Uout = 3.3V. Temperature from minus 40 to plus 60 C. Battery application!
If to set "Low" to EN input, then converter stops working and input…
Part Number: TPS61221 Other Parts Discussed in Thread: TPS61099 , TPS61021A I am a bit confused regarding the output current capabilities of the TPS61221 boost converter. Although it could be said that it is related to all similar boost converters.
Is…
Part Number: TPS61221 Other Parts Discussed in Thread: TPS61291
Hello,
I have a device with input voltage from 1.8 to 3.3 V and my question is: What is best battery non-recharable power supply for this device?
Three options are available:
1) Use one…
Part Number: TPS61221 Other Parts Discussed in Thread: TPS61020 , TPS62730 , TPS61097A-33 , TPS61291 , TPS61201 Hi,
Need your help.
While designing a low-power circuit for driving an at328p mc and a couple of sensors attached off a 14505 LiSoCl 3.7v battery…
Part Number: TPS61221 Hi everyone,
I have a (typical) circuit with TPS61221, 3V coin cell battery as input and a slide switch in series as you can see below in the schematic. The load current is 1~20mA in normal operation. I have noticed that sometimes…
Part Number: TPS61221 Hi there,
I m designing a boost converter using either TPS 61221 or TPS 61031.
I have two layouts for these two converters using the standard layout provided by the datasheet.
Both of the modules are able to output 3.3V as the design…
Part Number: TPS61221 Hi,
I have designed circuit based on TPS61221. with 3.3 v fixed out, Inductor 4.7uH, Cap is 10uF ceramic Samsung, Still found it draws 12 to 15uAmps without load, and after applying load it adds to the load.
kindly help me with the…
Other Parts Discussed in Thread: TPS61221 Hi,
The problem is occurred on my customer's circuit.
The problem is what large current flows when inserting the battery decreasing voltage.
The occurrence frequency is several percent.
I attach waveform below…