Lithium Ion single cell 3.3V regulator and undervoltage lockout IC
I am using a 3.6V lithium ion coin cell battery (LIR2450) in my project, and I'm trying to find the best option for creating a stable 3.3V or 3.0V output from it, whether that's by using a voltage...
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How can you deliver 1W power from a 10 mW coin cell?
For a smart meter or any other system that needs to wirelessly transmit data, the challenge is the same. How do I deliver Watts of power to my radio, while using a small, robust, and extremely...
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TPS62177 Does not meet Vout when started under load
I'm using a TPS62177DQCT 3V3 fixed output regulator. I used the schematic below.When I connect a resistive load of 6.6 Ohm (500mA), and then apply VIN of 24V, the Vout rises to a stable 2.9V. Only...
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TPS62080 Discharge
Hi,Could you tell me about TPS62080/A data sheet P17 Fig30. Is this a graph of TPS62080?Customer want a graph of TPS62080A.Please tell me the electric discharge graph of TPS62080A.Best Regards,Yusuke /...
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TPS62130 Vout accuracy at light load
HiOur customer found unexpected phenomenon at light load. There are two sample which is evaluated at light load (Io=0mA).The one of the sample(#2), the output voltage was 0.92V. The another sample(#1),...
View ArticleTPS62730 output at 2.6V at light loads?
Hello:I am using the TI TPS62730 to save power in a CC1101 design. I'm just doing the hardware now and have not done the software portion. I'm using an MCU also. I'm planning to run the design off...
View ArticlemicroSIP buck converter EMI performance
Hello Team,Which has better EMI performance, microSIP or external inductor device?Could I have you send me the data of EMI performance for microSIP, if you have it?Also TPS82085 has no spread spectrum...
View ArticleLithium Ion single cell 3.3V regulator and undervoltage lockout IC
I am using a 3.6V lithium ion coin cell battery (LIR2450) in my project, and I'm trying to find the best option for creating a stable 3.3V or 3.0V output from it, whether that's by using a voltage...
View ArticleValidation on Non-Linear Voltage Regulators
Hi,Can someone provide any ideas of the best method to validate non-linear voltage regulators? Impedance profile and Bode-plot used in traditional validation are useless when non-linear voltage...
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Smaller size now possible in 3A point-of-load converters
Are you space constrained? Does your next design have less printed circuit board (PCB) area available than the previous one? Are you tired of managing 10 or even 20 components for just a single power...
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TPS63020 getting hot
Hello,I am using the TPS63020 Buck-Boost-Converter for powering LEDs which are controlled with FAN5624 constant current LED-Driver.Power source is Li+ battery so Vin is 2,6-4,2 V and Vout is 3,3V.When...
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[ TPS60231 ] Individual Channel Control
[ TPS60231 ] Individual Channel Control(Slightly modified from original post)Hi,Can you please let me know whether each channel can be enabled/disabled with circuit ideas below? Each gate signals are...
View ArticleTPS62590 EMI noise
HelloIf multiple TPS62590 rise simultaneouslyNoise of TPS62590 with each other to generate?
View ArticleConstant current PFM/PWM Boost Converter
Hi,Can any one help to suggest Constant Current PFM/PWM boost converter for below Specs:Vin : 1.5-5VVout : 1.8-5.5VI Out : 200mA.Kindly suggest part ASAP.Rgds,Uma Mahesh
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TPS62130 Vout accuracy at light load
HiOur customer found unexpected phenomenon at light load. There are two sample which is evaluated at light load (Io=0mA).The one of the sample(#2), the output voltage was 0.92V. The another sample(#1),...
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[ TPS60231 ] Individual Channel Control
[ TPS60231 ] Individual Channel Control(Slightly modified from original post)Hi,Can you please let me know whether each channel can be enabled/disabled with circuit ideas below? Each gate signals are...
View ArticleNom-Isolated inverting buck-boost solution
Hi all,Our customer requires the device that they can use at the following condition. Do you have any solution?Vin: 3.1V(min), 3.3V(typ), 3.4V(max)Vout: -16VIout: 60mAefficiency requirement is 80%...
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How to use an AA battery as a backup power supply for an insulin pump
For millions of diabetics, insulin pumps are literally lifesavers. Instead of having to give themselves injections multiple times a day, the pump is always connected and gives a steady flow of insulin...
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Power management and design consideration for low-power sensing applications
Hi. I have a question regarding several design issues/inquiries in low-powered sensing applications. I would like an opinion or an advice on the matter. First, my project involves:- A microcontroller-...
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TPS63020 getting hot
Hello,I am using the TPS63020 Buck-Boost-Converter for powering LEDs which are controlled with FAN5624 constant current LED-Driver.Power source is Li+ battery so Vin is 2,6-4,2 V and Vout is 3,3V.When...
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