I need one 15V -> -5V Regulator, where load current will be around 2.8 to 5A. at 75C ambient Temperature.
Kindly, suggest me some regulators either with integrated Inductor or integrated switch!
LTM4651
Recommended for New Designs
The LTM4651 is an ultralow noise, 58V, 24W DC/DC µModule® inverting topology regulator. It regulates a negative output voltage (VOUT–) from a positive...
Datasheet
LTM4651 on Analog.com
LTM4655
Recommended for New Designs
The LTM4655 is an ultralow noise 40V, dual 4A or single 8A DC/DC μModule® regulator designed to meet the radiated emissions requirements of EN55022....
Datasheet
LTM4655 on Analog.com
I need one 15V -> -5V Regulator, where load current will be around 2.8 to 5A. at 75C ambient Temperature.
Kindly, suggest me some regulators either with integrated Inductor or integrated switch!
The LTM4655 might fit your requirements:
https://www.analog.com/en/products/ltm4655.html?tab=documentation-pane-1#product-documentation
It's a micro-module, so it has the inductors and power switches built in. There are two channels that can be parallelized -- going by this graph in the data sheet for single-channel output current:
For Vin = 15 Vout = -5, parallelizing the two channels should meet your
load current, although you would need to track down the issues mentioned
in the asterisk to be sure. There is a long walk-through in the data sheet
for thermal performance you would also need to walk through to see if it
meets your thermal requirement. I've never used this part, so I'm just
going on a quick look at the data sheet. Good luck,
The LTM4655 might fit your requirements:
https://www.analog.com/en/products/ltm4655.html?tab=documentation-pane-1#product-documentation
It's a micro-module, so it has the inductors and power switches built in. There are two channels that can be parallelized -- going by this graph in the data sheet for single-channel output current:
For Vin = 15 Vout = -5, parallelizing the two channels should meet your
load current, although you would need to track down the issues mentioned
in the asterisk to be sure. There is a long walk-through in the data sheet
for thermal performance you would also need to walk through to see if it
meets your thermal requirement. I've never used this part, so I'm just
going on a quick look at the data sheet. Good luck,
I have gone through this part as well as LTM4651. I tried simulating it, it produces a ripple voltage of around 40mVp-p both LTM4651 and LTM4655. If i combine both channels of LTM4655, The ripple is even more higher. Even in datasheet, they have told, it produces ripple frequency beat, when the channels are combined. Could you please suggest me any other part
Hmm, the inverting regulators in:
https://www.analog.com/en/parametricsearch/11501#/
that meet your specifications (about 11 using the search feature at the top)
all require discrete power transistors ... that's the best I could do. Good luck,