Battery performance optimizer circuit / rush current supplier with ultra slow...
Hi,I am working on a project for demanding of above circuit with below requirements:1. Circuit main power source is from a primary battery (3.6V), optimized current drawn from battery is < 50mA for...
View ArticleTINA/Spice/TPS62200: Decrypted spice model
Part Number:TPS62200Tool/software:TINA-TI or Spice ModelsMy customer is investigating using TPS62200 for DCDC conversion. Unfortunately, we are unable to simulate the circuit. The SPICE model that is...
View ArticleWEBENCH® Tools/CC2640R2F: power supply design for my embedded system
Part Number:CC2640R2FTool/software: WEBENCH® Design Toolsmy embedded system contains:CC2640R2F - 1.8V and 0.03Amodule A - 1.8V and 0.2AModule B - 1.8V and 0.002Amodule C - 1) 3.3V and 0.4A2) 3.3V and...
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How to modify a step-down converter to the inverting buck-boost topology
When looking for a DC/DC converter to create a negative voltage, in many cases you will use a step-down converter in the inverting buck-boost topology. While dedicated inverter devices such as the...
View ArticleTPS62150 SS/TR pin voltage for analog dimming
Hello,I am using a TPS62150 for driving a 1A led with analog dimming using SS/TR pin. The voltage applied to SS/TR is from 0 to 0.4V. This voltage is coming from a DAC 2.5V. A resistor divider 56K/10K...
View ArticleFor the TPS62177DQCR switching regulator, the 10uH inductor is difficult to...
For the TPS62177DQCR switching regulator, the LPS4012-103M 10uH inductor is difficult to source. Can you recommend a few other parts?I'd like something small and inexpensive.Please recommend a few...
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WEBENCH® Tools/TPS62180: WeBench Generated Duty Cycle greater than 100% on...
Part Number:TPS62180Tool/software: WEBENCH® Design ToolsDear WeBench Team,Our customer generated a new WeBench Design with the TPS62180 and get a duty cycle graph that was greater than 100%. Please...
View ArticleBest solution for LSH20 battery
Hello,I want to power my system with a LSH20 battery cell but I don't know which solution I have to pick.I need that it has a fixed Vout of 2.5V and Iout of ~200mA (I really need 0.5mA), but I know...
View ArticleWEBENCH® Tools/LM53602-Q1: Why LM53602 can't create5vin/3.3Vout Iout 2A?
Part Number:LM53602-Q1Tool/software: WEBENCH® Design ToolsHi Sir Why LM53602 can't create5vin/3.3Vout Iout 2A?Since 5Vin is in spec range. And for LM53602 EVB, i also can't see the input voltage range....
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Power your smart lock for five years on one set of batteries
Linear regulator, boost (step-up) or buck (step-down) – these are the three power-supply topologies for most smart locks. Which do you choose for your designs? Why does it matter?The success of any...
View ArticleHigh efficiency 5v to 3.3V regulator (0.01mA-50mA)
Hello,I'm desesperatly searching for the most efficient design to convert 5V to 3.3 V with a range from 0.01mA to 50mA.The board is a atmega368P-Pu with some arduino arduino modules(sparkfun lis3Ddh...
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3 Keys to Ultra-Low-Power in Wearable Designs
Looking to develop a wearable device, such as a watch, oximeter, or blood pressure monitor? The small size and high functionality required in a smart watch pose two basic challenges to the system...
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Conquering the Internet of Things: Solar Dice Sensor Node Reference Design
It’s a bird, it’s a plane, it’s a … solar dice? Actually, it’s an example of a sensor node in the Internet of Things (IoT). And this sensor node reports orientation to a host, so you always know...
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Pumping Milliamps
When putting together the power tree for a complicated system, such as a smartphone or tablet, very often specific integrated circuits are used because they support a wide input voltage range or...
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LSF0102: Vref B makes the currents flow into the Vref A power supply
Part Number:LSF0102Hello, we are using level translator LSF0102 for i2c from 3.3V (master) to 1.8V (slave). Schematcis bellow, we are using TPS62743 for 1.8V power supply but we are having problem with...
View ArticleBattery performance optimizer circuit / rush current supplier with ultra slow...
Hi,I am working on a project for demanding of above circuit with below requirements:1. Circuit main power source is from a primary battery (3.6V), optimized current drawn from battery is < 50mA for...
View ArticleTINA/Spice/TPS62200: Decrypted spice model
Part Number:TPS62200Tool/software:TINA-TI or Spice ModelsMy customer is investigating using TPS62200 for DCDC conversion. Unfortunately, we are unable to simulate the circuit. The SPICE model that is...
View ArticleWEBENCH® Tools/CC2640R2F: power supply design for my embedded system
Part Number:CC2640R2FTool/software: WEBENCH® Design Toolsmy embedded system contains:CC2640R2F - 1.8V and 0.03Amodule A - 1.8V and 0.2AModule B - 1.8V and 0.002Amodule C - 1) 3.3V and 0.4A2) 3.3V and...
View ArticleLMX2594: Power supply IC recommendation
Part Number:LMX2594Hello,What point should we consider parameter to select power supply for LMX2594?TPS62150 is on the EVM but I think TPS62821 or TPS62825 is better option because Hotrod package.I...
View ArticleReducing current sense resistor value in TPS62150 LED driver
Hi,We are using a TPS62150 in CC mode to drive a white LED.Specs:Vin: 2.8-12VLED: Vf 2.6-2.9V, 300ma - 1A maxSS/TR pin connected to DAC to adjust LED forward current.In Application Report SLVA451 page...
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