Posting for a colleague:
We are using TPS62142RGT buck regulator to step down from 5V to 3.3+5%. There is an inrush current controller on the 5V input (plugs to live 5V source).
The load on 3.3v is between 70 to 90 mA depending on how many LEDs turn…
Other Parts Discussed in Thread: TPS62120 We are also using TI’s TPS62142RGTT. After some troubleshooting, we realized that this buck was a large source of emissions/EMI. Do you know if TI offers any low noise buck regulators of a similar package?…
Other Parts Discussed in Thread: TPS62142 I have a question regarding the input rail for the TPS62142:
The input rail used currently is 15V +/- 1V. The datasheet specifies a 17V recommended max and a 20V absolute max. I'm sure this max is realistically…
Other Parts Discussed in Thread: TPS62143 , TPS62110 , TPS62142 , TPS62160 Got the below problem:
We are currently evaluating TPS62142RGT and TPS62143RGT chips.
operating conditions for TPS62142RGT : VIN=12V; FSW=GND; DEF=GND; L=2.2uH (VLS3010T-2R2M1R3) SS…
Other Parts Discussed in Thread: SWITCHERPRO , TPS62140 , TPS62142 Hi!
When will I be able to make designs in SwitcherPro with the TPS62140 and the TPS62142?
Kind regards
Lars
Hi
Yes, I need both 5V and 3.3V.
I would like to use TPS62143 to derive 5V from the Li-ion battery as mentioned above.
For 3.3V, I would like to use TPS79633, with it's input being 5V, obtained from TPS62143.
Pl. confirm if this scheme is alright…
Part Number: TPS62143 Other Parts Discussed in Thread: TPS62142 , I am having problem with the TPS62142 and the TPS62143 failing on a system when disabled/re-enabled. We are using the recommended circuit, except the EN pin is connected to 12V and GND through…
Part Number: TPS62140 Other Parts Discussed in Thread: TPS62142 , Using the same resistor divider for tps62140 as in datasheet for 1.2V but get 2.0V (75 kOhm and 150 kOhm). After tps62140 enabled tps62142 (from PG pin of tps62140 to tps62142). From tps62142…
Other Parts Discussed in Thread: TPS62142 Hi,
Is it neccassary to power up the devices as well as to provides the pull ups on signals with their respective power domain supplies (VDDSHV)? There might be some leakage if we use an external supplies as both…
The most likely time were the AM335x WARMRSTn terminal could drive a logic-high pulse begins as soon as VDDSHV6 begins to ramp and remains in that state until VDD_CORE ramps to the recommended operating voltage.
So the TPS62142 will need to powered up…
