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Carsten Hyldal
over 6 years ago
Power management
Power management forum
LM25575 Inverting Buck-Boost Design
Resolved
Hi We have designed a couple of power supplies (±7.0VDC/0.70A) based on the
LM25575
device
Alexandre Penaud
over 6 years ago
Power management
Power management forum
RE: LM25575 Schottky diode failure on +12Vdc -> -12Vdc conversion
Re, I have mistake to join you a plot of the -12V potential: All scopes have been performed with a differential voltage probe with a gain of 1/10. Regards, Alexandre
Dixit Zachariah
over 6 years ago
Power management
Power management forum
LM25575 as a buck boost regulator
Resolved
with the WEBENCH tool,
LM25575
appeared to be a solution. Can -18V be obtained from +12V using a buck regulator
Diego de la Cruz1
over 7 years ago
Power management
Power management forum
LM25575 current sense pin impedance
Resolved
Could anybody that has access to a board with a
LM25575
switcher be so kind to measure
Alexandre Penaud
over 6 years ago
Simulation, hardware & system design tools
Simulation, hardware & system design tools forum
LM25575 inverting buck-boost mode
Resolved
Hello, I am designing a +/-12VDC supply based on
LM25575
converters used in cascade. The topology
Pascal Enz
over 7 years ago
Power management
Power management forum
Input Current vs. Output Current LM25575
Resolved
I'm using a
LM25575
to deliver 3.3 Volts with a average load of 1A. It's all ok, but if the load
Gustavo Tenrreiro
over 9 years ago
Power management
Power management forum
Voltage out of LM25575 (5V Vout), drops 0.5V with very little load
Resolved
recommended a
LM25575
for the 5V rail. My input is from a rectified 24VAC source. Without a load or very
mse256
over 7 years ago
Power management
Power management forum
RE: LM25574 sync duty cycle
Because the
LM25575
input pin apparently has an active drive to ground, will that not charge the capacitor to the state where it will continue to hold the sync pin at ground when the internal circuitry reverts to weak pullup? Note that the datasheet recommends...
Go
over 8 years ago
Power management
Power management forum
Question about the LM3150 ripple injection circuit
Resolved
Hi, I'd like to ask about the need of external ripple injection circuit for LM3150. According to the attached PDF file page 14, It saids that we need the external ripple injection circuit when the output voltage is 12V or above for proper regulation. I get some questions as follows, ・Could someone...
John Bottrill
over 7 years ago
Power management
Power management forum
RE: PWM chip selection
Hi, I've attached the 2013 User's Guide for power products. Starting on page 53 you will find a selection of PWM controllers. many of these teh frequency can be varied according to external criteria. As an example if you use a UC3842 it is...
2013 Power Management Guide.pdf
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