Thanks for explaining the history and that you need a fixed 0.4Vout converter and don't need to adjust the voltage during operation. Most of these RFPA devices assume that you will adjust the voltage.
You can use the TPS628680A/1A without I2C to output…
Part Number: TPS62822 Other Parts Discussed in Thread: TPS62800 , TPS6283810 , TPS62825 , Tool/software: WEBENCH® Design Tools 3.3V to 1V-500mA.docx
I have simulated TPS62822DLCR in Webench.
Please find the attached simulation report.
I am getting a spike…
Hi Mike,
For a wearable, there are PMICs with the charger like bq25120 and bq25150.
We also have a boost + buck + load switch in TPS62770.
If you need discrete DC/DCs for higher efficiency, the TPS62743/6/8 and TPS62800 families are very small, popular…
Hi Barry,
Is the softstart delay (of 10 msec typical) too long or is the variation the issue? The TPS62800 family has a much shorter delay time.
The delay time spec includes the temperature variations, which are a dominant factor.
If this is an…
Hi Jeremy,
Is everything proceeding ok with your design?
Just as an information, we now have 6 devices in the TPS6280x family: TPS62800/1/2 for 1A with smallest size and TPS62806/7/8 for 600 mA with highest efficiency.
Dustin,
Best option would be to use a separate DCDC like the TPS62800 or TPS62740 from PMID.
You can use the LS/LDO but note that it will be in load switch mode by default.
regards,
gautham
Part Number: TPS8268090 Other Parts Discussed in Thread: TPS62800 Hi TI Experts,
We need to know what is the gap ( minimum height ) under the inductor component between inductor body and substrate, please refer picture below :
The concern is we need…
Again, we recommend the newer, smaller TPS62800 family for these applications. Why does it not fit?
The air coil is just a wire with the parameters (L and DCR) shown in the graph. There is no part number.
Hi Sara,
The bq25120 contains some of your required functions and is very popular in your ultra-low power application.
If you need discrete bucks, we have TPS62743/6/8 and TPS62800/1/2 which are very small and low power.
