Design contains obsolete parts

NCP5425DOEVBOS: 1.5V and 1.8V @ 17.5A, 4.6 ~ 12V in

Summary

The NCP5425 demonstration board is a 4.0” by 4.0”, two−layer printed circuit board with an actual circuit area of 2.5”, by 2.3”. This demonstration circuit can be used to evaluate the performance and functionality of NCP5425, configured to generate a 1.5 V and 1.8 V output from a single input voltage (5.0 V). Each output is capable of delivering 15 A. Both the controller VCC and the switching FET input power are powered by the single 5.0 V power supply.

The NCP5425 controller contains all the circuitry required for a Dual Output Buck Regulator, including undervoltage lockout, soft−start, adaptive FET driver non−overlap, cycle−by−cycle overcurrent protection and a low noise disable mode.

Specifications

Manufacturer	onsemi
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Multi Output
Eval Board Part Number	NCP5425DOEVBOS-ND
Eval Board Supplier	onsemi
Eval Board	Board not Stocked
Topology	Step Down
Outputs and Type	2 Non-Isolated
Voltage Out: Highest Current First	1.5V, 1.8V
Current Out	17.5A per Channel
Voltage In	4.6 ~ 12 V
Efficiency @ Conditions	>90%, 5V in, 1.8V @ 1.6 ~ 9 A (Vout 2) >90%, 5V in, 1.5V @ 1 ~ 8 A (Vout 1)
Voltage Out Range	0.8 ~ 5 V
Features	Current Limit (Adj. or Fixed) Electrolytic Free Light Load Mode Over Current Protection Over Voltage Protection PFM or PWM Power Good Output Shutdown, Enable, Standby Soft Start Thermal Protection
Switching Frequency	300 kHz
Standby Current [Typical]	- Not Given
Quiescent Current [Typical]	16 mA
Component Count + Extras	53 + 10
Internal Switch	No
Design Author	ONSemiconductor
Application / Target Market	Computers Memory Back-up
Standby Current [Maximum]	- Not Given
Quiescent Current [Maximum]	22 mA
Main I.C. Base Part	NCP5425
Date Created By Author	2004-07
Date Added To Library	2018-06