Image is for your reference only, please check specifications for details
iconCompare
icon

UC2903DW

  • Available: 2708

Reference Price(In US Dollars)

QtyUnit PriceExt.Price
1+US $8.00010US $8.00
10+US $7.20009US $72.00
30+US $5.60007US $168.00
100+US $4.60006US $460.01
500+US $4.40006US $2200.03
1000+US $4.00005US $4000.05

Do you want a lower wholesale price? Please send us an inquiry, and we will respond immediately.

Quick RFQ
  • Description
  • Alternatives
  • Shopping Guide
Description
High Performance Current Mode Controllers
The UC3842B, UC3843B series are high performance fixed frequency current mode controllers.
They are specifically designed for Off−Line and DC−DC converter applications offering the designer a cost−effective solution with minimal external components.
These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.
Features
• Trimmed Oscillator for Precise Frequency Control
• Oscillator Frequency Guaranteed at 250 kHz
• Current Mode Operation to 500 kHz
• Automatic Feed Forward Compensation
• Latching PWM for Cycle−By−Cycle Current Limiting
• Internally Trimmed Reference with Undervoltage Lockout
• High Current Totem Pole Output
• Undervoltage Lockout with Hysteresis
• Low Startup and Operating Current
• Pb−Free Packages are Available
Alternatives

Functional Equivalent (FE) materials, including Fused Filament Fabrication (FFF) form, assembly, and functionally compatible substitute materials.

SHIPPING GUIDE

  • Shipping Methods

    Rest assured that your orders will be handled by these trusted providers, such as DHL, FedEx, SF, and UPS.

  • Shipping Cost

    Shipping starts at $40 but varies for destinations like South Africa, Brazil, India, and more. The actual shipping charges depend on time zone, country, and package weight/volume.

  • Delivery Time

    We ship orders once daily, around 5 p.m., except on Sundays. The estimated delivery time may vary depending on the courier service you choose, but typically ranges from 5 to 7 business days.

  • Professional Platform

  • Full-speed Delivery

  • Wide Variety of Products

  • 365 Days of Quality Assurance