Image is for your reference only,please check specifications for details
Updated at 15/07/2025 10:30:15(UTC+8)
Certifications
ManyChip is committed to product quality and safety with ISO 9001, ISO 13485, ISO 45001, UL, RoHS, CQC and REACH certifications.
Description
- Housed in SO-8 or DIP8 package, the NCP1203 represents a major leap toward ultra-compact Switch-Mode Power Supplies and represents an excellent candidate to replace the UC384X devices.Thanks to its proprietary SmartMOS Very High Voltage Technology, the circuit allows the implementation of complete off-line AC/DC adapters, battery charger and a high-power SMPS with few external components.With an internal structure operating at a fixed 40 kHz, 60 kHz or 100 kHz switching frequency, the controller features a high-voltage start-up FET which ensures a clean and loss-less start up sequence. Its current-mode control naturally provides good audio susceptibility and inherent pulse-by-pulse control.When the current set point falls below a given value, e.g. the output power demand diminishes, the IC automatically enters the so-called skip cycle mode and provides improved efficiency at light loads while offering excellent performance in standby conditions. Because this occurs at a user adjustable low peak current, no acoustic noise takes place.The NCP1203 also includes an efficient protective circuitry which, in presence of an output over load condition, disables the output pulses while the device enters a safe burst mode, trying to restart. Once the default has gone, the device auto-recovers. Finally, atemperature shutdown with hysteresis helps building safe and robust power supplies.
- Features
- ---
- |
- High-Voltage Start Up Current Source
- Auto-Recovery Internal Output Short-Circuit Protection
- Extremely Low No-Load Standby Power
- Current-Mode with Adjustable Skip-Cycle Capability
- Internal Leading Edge Blanking
- 250 mA Peak Current Capability
- Internally Fixed Frequency at 40 kHz, 61 kHz and 100 kHz
- Direct Optocoupler Connection
- Undervoltage Lockout at 7.6 V Typical
- SPICE Models Available for TRANsient and AC Analysis
- Pin to Pin Compatible with NCP1200
- Pb-Free Packages are Available
NCP1203 Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Case/Package | SOIC8 |
| Show | |
| RoHS | RoHS Compliant |
Order guide
-
TT in advance (bank transfer), Western Union, Credit card,
PayPal. Customer is responsible for shipping fee, bank
charges, duties and taxes.
-
- You can choose whether shipping charges will be charged through your shipping account or by us.
- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
Contact Us
If you have any problem,please email to sales@manychip.com, we will response as soon as possisble.
Popular Search Parts
- Recommended Parts
- Hot Parts
- Popular Parts
- Recently Popular Parts
- STM32WB5MMGH6TR BLM18EG221SN1 BLM18PG471SN1 BLM18SG121TN1 FXMA108 MAX3232EIDWR 1SS400SMFHT2R SZMMBZ5V6ALT1G MC78M05CDTRK SMMBT5401LT1G
- LD1117S50TR CSD19505KCS TCA6424RGJR LD1117S33TR ATV12H055M2 ICE3BR1765J FSBB30CH60C DCA1000EVM IRL40SC209 LIS2DW12TR
- BC635 P2N2222A RTE0T0002LKCE00000R IRLR8721PBF IGCM20F60GA 24N60C3 BC184 1200P60 6R125P MC14093BCP
- ISR3SAD100 AO6602 1019985 1019999 1017504 C44PXGR5200RCSK SSSS820101 DC388C FRDM33771BTPLEVB 1462360101
SN:H1.03759LO3146V49Q0QC0S0
Buy NCP1203
Please fill the information below to send RFQ quickly,and we will respond immediately.