LT3094, −20V, 500mA, Ultralow Noise, Ultrahigh PSRR Negative Linear Regulator

Analog Devices announces the Power by Linear LT3094, an ultralow noise, ultrahigh power supply ripple rejection (PSRR), low dropout voltage, 500mA negative linear regulator that targets applications requiring the lowest noise performance. It features industry-leading 0.8µVRMS integrated output noise (10Hz to 100kHz), providing the quietest environment for precision measurements of low level signals. The LT3 ...

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Vehicle Battery monitor on a automotive relay form factor

Battery monitor on a automotive realy form factor Hi all! I’m really busy this year so I can’t post all the projects where I’m involved. Here’s one of the design I do last year for a client. He wants to measure the voltage of a car battery and set a couple of alarms when voltage falls below a defined values. Also, he wants to put the device in the relay box of the car, so the design needs to have a relay fo ...

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Wave player using PIC18F4550 microcontroller

Making an audio player (.wav files) using PIC microcontroller is not complicated especially when the MCU has a PWM module. This topic shows how to build an audio player using PIC18F4550 microcontroller where the the file is stored in an SD card with FAT16 or FAT32 file system. In this project I used a wave file with sample rate of 16000 Hz and 2 channels (stereo). The file I used originally it was an MP3 fi ...

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20V, 4 MHz, synchronous 2x 6A step-down regulator in 20 sq mm

LTC3636 and LTC3636-1 are high efficiency, 4 MHz synchronous dual output buck regulators that incorporate a constant frequency/controlled on-time, current mode control scheme with phase lockable switching frequency. Their design architecture reduces conducted and radiated emissions. The devices can deliver up to 6A of continuous output current from each channel or generate a 2-phase single output up to 12A. ...

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5V Power Supply Atop a 9V Battery

I have a $500 Rigol DP832 programmable triple-output power supply sitting on my bench, yet I built a 5V regulator to sit atop a 9V battery for some reason. Perhaps it’s more portable, or cheap enough to toss in with the rest of the project it is powering, or maybe the bench power supply is just overkill. Or maybe, just maybe, I saw other people making them and I thought it would be cool to build myself. Two ...

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LTM8003 – 40VIN, 3.5A Step-Down μModule Regulator

Features Complete Step-Down Switch Mode Power Supply Wide Input Voltage Range: 3.4V to 40V Wide Output Voltage Range: 0.97V to 18V Wide Temperature Range: –40°C to 150°C (H-Grade) 3.5A Continuous Output Current, 6A peak FMEA Compliant Pinout Output Stays at or Below Regulation Voltage During Adjacent Pin Short or if a Pin Is Left Floating Selectable Switching Frequency: 200kHz to 3MHz External Synchronizati ...

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LT8608 – 42V, 1.5A Synchronous Step-Down Regulator with 2.5μA Quiescent Current

Features Wide Input Voltage Range: 3.0V to 42V Ultralow Quiescent Current Burst Mode® Operation: <2.5μA IQ Regulating 12VIN to 3.3VOUT Output Ripple <10mVP-P High Efficiency 2MHz Synchronous Operation: >92% Efficiency at 0.5A, 5VOUT from 12VIN 1.5A Continuous Output Current Fast Minimum Switch-On Time: 45ns Adjustable and Synchronizable: 200kHz to 2.2MHz Spread Spectrum Frequency Modulation for Low ...

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Switching Voltage Regulator Tutorial

A switching voltage regulator is one of my favorite circuits. In school, they were the first circuits I built where I understood how transistors worked. In fact, they were the first circuit I saw an inductor being useful! Switching regulators are incredibly efficient when designed properly. Of course, this detail about design is important. They are not as simple as a linear regulator, which is basically an ...

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LT8616 – Dual 42V Synchronous Monolithic Step-Down Regulator with 6.5μA Quiescent Current

Features Wide Input Voltage Range: 3.4V to 42V 2.5A and 1.5A Buck Regulators with Separate Inputs Fast Minimum Switch On-Time: 35ns Ultralow Quiescent Current Burst Mode® Operation: 6.5μA IQ Regulating 12VIN to 5VOUT and 3.3VOUT Output Ripple < 15mV 180° Out of Phase Switching Adjustable and Synchronizable: 200kHz to 3MHz Accurate 1V Enable Pin Thresholds Internal Compensation Output Soft-Start and Track ...

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3.3V Voltage Regulator

Description This project  will provide 3.3 V @ 800 mA DC Regulated Supply.  The project is based on the LM1117 Low-Dropout Linear Regulator. The LM1117-3.3 is a low dropout voltage regulator with a dropout of 3.3V @ 800mA of load current. Specifications: Input - 5 to 15 VDC Output Current/Voltage 0<Iout<800mA, 4.75V<Vin<12V Output - 3.3 V @ 800 mA regulated low ripple DC voltage Current limiting ...

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