TLV62080 - inductor current
Hi all,Would you mind if we ask TLV62080?Usually, IL(inductor current) is the following;-IL=Iout(max)+ΔIL/2So, when we choose the inductor, we consider ILIM value, we have to choose 2.8A's inductor.If...
View ArticleTPS62175 - Utilizing Enable pin for starting off at a set input voltage.
Hi,I am powering up the EVM with a 10mA current limited supply and am seeing the TPS output go into hiccup mode if I start off with a load of 150 ohm (22mA).The power supply is ramping up very slowly...
View ArticleTPS63020 and TPS82740A schematic review
Helloplease review my schematic do I need to post to different forum for the wireless charger review? (Please visit the site to view this file)I was able to insert the schematic only use internet...
View ArticleTPS62410QDRCRQ1 Vref MIN & MAX
Dear all,Could you help let me know TPS62410QDRCRQ1 MIN & MAX of Vref? Its datasheet only shows TYP=600mV. Because my auto customer needs to evaluate the worst cause of its output voltage,...
View ArticleTPS62175 output protection
Is it safe to connect an external voltage source to the output (SW pin) of TPS62175 when there is no input voltage applied on VIN pin? Or do we need a protection diode connected from output to VIN?
View ArticleIR LED driver
Hi Team,My customer is looking for IR LED(Vf=1.8V) driver that can output 800mA.Input range is 3.0～4.3V, so buck topology is required.-------------------------------------------Vin: 3.0～4.3VVf of IR...
View ArticleClik here to view.
Turn three knobs to power any ultra-low power system
When designing an ultra-low-power system such as a smart watch, low-power sensor node or smart meter, the current required to operate the power supply is critical. This quiescent current (IQ) must be...
View ArticleTPS61230EVM Evaluation Module Expectations
I need a clarification on the function of the TPS61230DRCR chip.My assumption is the output voltage and current will remain constant regardless of input voltage. Is that correct?from the data sheet, I...
View ArticleTPS62175 - Utilizing Enable pin for starting off at a set input voltage.
Hi,I am powering up the EVM with a 10mA current limited supply and am seeing the TPS output go into hiccup mode if I start off with a load of 150 ohm (22mA).The power supply is ramping up very slowly...
View ArticleClik here to view.
TLV62130 short circuit damage
Hi,I am testing out the TLV62130 to potentially be used in our new product.However, every time a short-circuit is produced across the TLV62130 output (i.e. not the MCP1727), the TLV62130 is damaged...
View ArticleLow noise DC-DC converter
Hello.I am want use THS4520 amplifier in my application.Please advise a low noise DC/DC converter chip for convert DC +12V to -2.5V.Thanks.
View ArticleClik here to view.
TPS62233 voltage drop off
I am using the TPS62233 regulator in a circuit and followed the reference design and recommendations. When watching the output on a scope the voltage is correct and stable except that irregularly the...
View ArticleTPS62065 tStart
HiOur customer would like to know the variation of start up time for this device.The variation is specified as tStart on the datasheet. However there is no min and max value.Can you provide that min...
View ArticleTPS62130A - Internal output voltage accuracy
Hello,My customer has a question about TPS62130A.[Q]Please tell me the specification or some reference data for the Internal output voltage accuracy in the conditions of "PWM mode operation, VIN >=...
View ArticleClik here to view.
TPS62133 power supply design (layout)
Hello TI and forum members! I am designing a 5V 3A power supply with the TPS62133. The most interesting charateristic of this regulator that attracted me was its high efficiency at low output currents...
View ArticleTPS62130A-Q1 Switching frequency
I'm disty in Japan.I'd like to ask you about the switching frequency of TPS62130A-Q1.My customer is considering using TPS62130A-Q1 to next model.He likes TPS62130A-Q1 with high efficiency...
View ArticleCar chargers IC
Hi Team,I have seen car chargers that are very small and compact. What is the IC used in those car charger accessories. Those ICs should be able to charge:1) ipad2) ipad mini3) Other tablets4) Mobile...
View ArticleTPS62065 tStart
HiOur customer would like to know the variation of start up time for this device.The variation is specified as tStart on the datasheet. However there is no min and max value.Can you provide that min...
View Articletps62140 output voltage accuracy
The datasheet does not specify how to calculate the output accuracy when using the adjustable (tps62140) version with an external resistor divider. For example, the reference tolerance is sometimes...
View ArticleClik here to view.
How to boost your battery-powered wireless sensor nodes
The proliferation of the Internet of Things (IoT) has created wireless sensor nodes (WSNs) in every conceivable nook and cranny of the typical industrial building. A WSN is a device, usually...
View Article