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The NCP1599 is a fixed 1 MHz, high-output-current, synchronous PWM converter that integrates a low-resistance, high-side P-channel MOSFET and a low-side N-channel MOSFET. The NCP1599 utilizes internally compensated current mode control to provide good transient response, ease of implementation, and excellent loop stability. It regulates input voltages from 3.0 V to 5.5 V down to an output voltage as low as 0.8 V and is able to supply up to 3.0 A of load current.
The NCP1599 includes an internally fixed switching frequency (FSW), and an internal soft-start to limit inrush current. Other features include cycle-by-cycle current limiting, short-circuit protection, power saving mode and thermal shutdown.
| Manufacturer | onsemi |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board Part Number | NCP1599GEVBOS-ND |
| Eval Board Supplier | onsemi |
| Eval Board |
Board not Stocked
|
| Topology |
Step Down
|
| Outputs and Type |
1 Non-Isolated
|
| Voltage Out: Factory Set |
1.8 V
|
| Current Out |
3 A
|
| Voltage In |
3 ~ 5.5 V
|
| Efficiency @ Conditions |
>80%, 5V in, 3.3V @ 0.03 ~ 3 A
>80%, 5V in, 1.8V @ 0.044 ~ 2.2 A >80%, 5V in, 1.2V @ 0.08 ~ 2 A |
| Voltage Out Range |
0.8 ~ 3.3 V
|
| Features |
Current Limit (Adj. or Fixed)
Light Load Mode Power Save Mode Pre-Biased Startup Short Circuit Protection Soft Start Thermal Protection Under Voltage Protection, Brown-Out |
| Switching Frequency |
1 MHz
|
| Standby Current [Typical] |
39 µA
|
| Quiescent Current [Typical] |
1.8 mA
|
| Component Count + Extras |
11 + 10
|
| Internal Switch |
Yes
|
| Design Author |
ONSemiconductor
|
| Application / Target Market |
Audio: Hi Fi
Audio: Home Theater Systems Computers FPGA / DSP / Processors LCD TV / Monitor Networking Set-Top Boxes USB Powered Devices |
| Standby Current [Maximum] |
- Not Given
|
| Quiescent Current [Maximum] |
2.2 mA
|
| Main I.C. Base Part |
NCP1599
|
| Date Created By Author | 2013-04 |
| Date Added To Library | 2022-04 |
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Orders are typically delivered to Austria within 48 hours depending on location.
Free delivery to Austria on orders of 50 EUR or more. A delivery charge of 18 EUR will be billed on all orders less than 50 EUR.
UPS or FedEx freight pre-paid: DDP (Duty and customs paid by DigiKey)
DHL freight pre-paid: CPT (Duty, customs, and VAT due at time of delivery)
Credit account for qualified institutions and businesses
Payment in Advance by Wire Transfer
![]()
![]()
![]()
![]()


More Products From Fully Authorized Partners
Average Time to Ship 1-3 Days, extra ship charges may apply. Please see product page, cart, and checkout for actual ship speed.
Incoterms: CPT (Duty, customs, and applicable VAT/Tax due at time of delivery)
For more information visit Help & Support
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