• UC3844BD1R2G 8-SOIC


Compact 8-pin SOIC package for easy integration

Quantity Unit Price(USD) Ext. Price
1 $0.508 $0.51
10 $0.423 $4.23
30 $0.381 $11.43
100 $0.340 $34.00
500 $0.286 $143.00
1000 $0.275 $275.00


*The price is for reference only.
  • 90-day after-sales guarantee
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Quick Inquiry

Please submit RFQ for UC3844BD1R2G or email to us: Email: [email protected], we will contact you in 12 hours.

Overview of UC3844BD1R2G

The UC3844BD1R2G exceeds expectations as a premium current-mode PWM controller tailored for the seamless implementation of off-line or DC-to-DC fixed-frequency switching power supplies. Its internal temperature-compensated reference delivers a rock-steady 5.1V voltage reference for precise control circuitry operation. Notably, the device's programmable oscillator allows for easy frequency adjustment ranging from 100 kHz to 500 kHz, enabling designers to fine-tune performance characteristics as needed. Equipped with pulse-by-pulse current limiting protection, the UC3844BD1R2G ensures reliable operation even under demanding load conditions


Key Features

  • Trimmed Oscillator for Precise Frequency Control
  • Oscillator Frequency Guaranteed at 250 kHz
  • Current Mode Operation to 500 kHz Output Switching Frequency
  • Output Deadtime Adjustable from 50% to 70%
  • 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


The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Status Active Output Type Transistor Driver
Function Step-Up, Step-Up/Step-Down Output Configuration Positive, Isolation Capable
Topology Boost, Flyback Number of Outputs 1
Output Phases 1 Voltage - Supply (Vcc/Vdd) 10V ~ 36V
Frequency - Switching Up to 500kHz Duty Cycle (Max) 48%
Synchronous Rectifier No Clock Sync No
Control Features Frequency Control Operating Temperature 0°C ~ 70°C (TA)
Mounting Type Surface Mount Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC Base Product Number UC3844

Warranty & Returns

Warranty, Returns, and Additional Information

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    Parts Quality Guarantee: 365 days

    Returns for refund: within 90 days

    Returns for Exchange: within 90 days

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