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.
| 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 |
Bulgaria
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