UC3842AD
- Mfr.Part #
- UC3842AD
- Manufacturer
- Microsemi
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC REG CTRLR PWM CM 14-SOIC
- Stock
- 7,525
- In Stock :
- 7,525
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- Microsemi
- Product Category :
- DC DC Switching Controllers
- Topology :
- Boost, Buck, Buck-Boost, Flyback, Forward
- Input Current :
- 11mA
- Mounting Type :
- Surface Mount
- Max Input Voltage :
- 25V
- Surface Mount :
- yes
- Supply Voltage :
- 11V
- JESD-609 Code :
- e4
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Length :
- 4.9mm
- Voltage - Supply (Vcc/Vdd) :
- 10V~30V
- Output Configuration :
- Positive
- Termination :
- SMD/SMT
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Peak Reflow Temperature (Cel) :
- 260
- Input Voltage-Nom :
- 15V
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- Lifecycle Status :
- ACTIVE (Last Updated: 6 days ago)
- REACH SVHC :
- No SVHC
- Operating Temperature :
- 0°C~70°C TA
- Output Type :
- Transistor Driver
- Packaging :
- Tube
- Output Voltage :
- 5V
- Number of Outputs :
- 1
- Factory Lead Time :
- 6 Weeks
- Base Part Number :
- UC3842
- Max Power Dissipation :
- 1W
- Number of Terminations :
- 8
- Output Current :
- 1A
- Synchronous Rectifier :
- No
- Fall Time (Typ) :
- 50 ns
- Height :
- 1.75mm
- Width :
- 3.91mm
- Frequency :
- 450kHz
- Frequency - Switching :
- Up to 500kHz
- Thickness :
- 1.58mm
- Control Features :
- Frequency Control
- Nominal Input Voltage :
- 15V
- Rise Time :
- 50ns
- Control Mode :
- CURRENT-MODE
- Power Dissipation :
- 1W
- Weight :
- 72.603129mg
- Function :
- Step-Up, Step-Down, Step-Up/Step-Down
- Lead Free :
- Lead Free
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- RoHS Status :
- ROHS3 Compliant
- Pbfree Code :
- yes
- ECCN Code :
- EAR99
- Terminal Form :
- Gull wing
- Control Technique :
- PULSE WIDTH MODULATION
- Terminal Position :
- Dual
- Number of Pins :
- 8
- Supply Current-Max (Isup) :
- 25mA
- Max Output Current :
- 1A
- Duty Cycle (Max) :
- 96%
- Max Duty Cycle :
- 100 %
- Datasheets
- UC3842AD

DC DC Switching Controllers Microsemi UC3842AD Overview
Introducing the Microsemi UC3842AD, a state-of-the-art DC DC Switching Controller designed for high performance and reliability in power management applications. This innovative controller operates as a PWM (Pulse Width Modulation) regulator, making it an essential component for converting a DC input voltage into a controlled output voltage. Its integration in a 14SOIC package allows for compact and efficient designs, suitable for a wide range of industrial and commercial environments. The DC DC Switching Controllers Microsemi UC3842AD is optimized for superior performance, offering designers a versatile solution for their power supply needs.
UC3842AD Features
The UC3842AD boasts several key features that enhance its utility in power control systems. It includes an automatic feed-forward compensation and a pulse-by-pulse current limiting feature, which enhances its safety and efficiency. Additionally, the device offers under-voltage lockout with hysteresis, ensuring stable operation under fluctuating power conditions. Its high frequency operation up to 500 kHz enables smaller sized components to be used, which reduces overall system size and cost.
UC3842AD Applications
- Power Supplies: Used in switching power supplies where efficiency and reliability are critical. The UC3842AD enhances performance by providing stable PWM control, optimizing energy conversion and minimizing heat generation.
- DC-DC Converters: Ideal for applications requiring voltage step-up or step-down. The UC3842AD regulates voltage across diverse conditions, ensuring consistent output in portable and automotive electronics.
- LED Drivers: Utilized in LED lighting systems to provide precise current control, thus extending the life of the LEDs and improving energy efficiency.
- Battery Chargers: Suitable for advanced battery management systems where precise voltage and current regulation are necessary to enhance battery life and safety.
- Telecommunication Equipment: Ensures reliable power management in telecom infrastructure, critical for maintaining system integrity and operational continuity.
You may place an order without registering to Chip IC. We strongly recommend that you log in before purchasing as you can track your order at any time.
RFQ (Request for Quotations)It is recommended to send RFQ to get the latest prices and stock availability about the part.Our sales will reply to your inquiry within 24 hours.
Payment MethodFor your convenience, we accept multiple payment methods in USD, Such as:PayPal, Credit Card, and wire transfer.
IMPORTANT NOTICEYou may place an order without registering to 1. You'll receive an order confirmations by e-mail soon . (Please remember to check the spam box if you didn't hear from us). 2. Since stock availability and prices may change at any time, the sales will reconfirm the order details and update you at soonest time.
Most of our products are shipped via FEDEX,DHL,UPS and SF EXPRESS...
Shipping CostShipping Cost starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).If customer have shipping account, we can make shipment under customer’s shipping account with freight collect directly.
The basic freight (for package ≤0.5 KG ) depends on the time zones and countries
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose. You can track it by the tracking no.
















