UC3842N Switching Voltage Regulators by HGSEMI – Compact PWM Power Control
The Switching Voltage Regulators UC3842N by HGSEMI are high-performance current-mode PWM controllers designed to deliver precision voltage regulation in compact form factors. Known for their high efficiency and fast response, these ICs are widely used in off-line and DC-DC power supply designs.
This blog covers the technical features, applications, wiring guide, and key benefits of the UC3842N, making it a reliable choice in your power management IC inventory.
Technical Specifications of UC3842N
-
Manufacturer: HGSEMI
-
Part Number: UC3842N
-
Type: PWM Switching Voltage Regulators
-
Input Voltage Range: 7.6V to 30V
-
Output Type: Totem-pole
-
Operating Frequency: Up to 500kHz
-
Start-Up Current: <1 mA
-
Package: DIP-8
-
Category: Semiconductors, Integrated Circuits - ICs, Power Management ICs, Voltage Regulators & Voltage Controllers, Switching Voltage Regulators
Ideal for cost-effective, high-efficiency power designs across industrial, telecom, and consumer electronics applications.
Key Features of UC3842N Switching Voltage Regulators
-
Fixed-Frequency PWM Control for reliable switching
-
Low Start-Up and Operating Current improves efficiency
-
Fast Transient Response
-
Undervoltage Lockout (UVLO) with Hysteresis
-
Totem-Pole Output Stage for high-speed switching
These features make UC3842N Switching Voltage Regulators a powerful choice for applications requiring high reliability and stable voltage output.
Applications of UC3842N
With versatile support for multiple topologies, this IC fits perfectly into modern power management ICs and voltage regulators & voltage controllers categories.
Wiring and Connection Overview
Pin Configuration (DIP-8):
The UC3842N Switching Voltage Regulators are easy to implement and provide robust switching performance with minimal external components.
Use Case Scenario: Compact Power Supply for IoT Gateways
Challenge: A designer required a compact, cost-effective switching controller for an IoT gateway with tight thermal and space constraints.
Solution: The UC3842N provided precise PWM control and high efficiency in a DIP-8 package, simplifying design and thermal management.
Result: Enhanced power performance with reduced BOM cost using a single, reliable switching voltage regulator IC.
Also Available from Other Manufacturers
Looking for alternative sources?
Xon Electronics also offers Switching Voltage Regulators from:
Browse and compare compatible parts to suit your design needs.
Download Datasheet for UC3842N
Need complete specs and electrical characteristics?
[Download the UC3842N Datasheet from Xon Electronics]
Why Buy from Xon Electronics?
Shop confidently at Xon Electronics for UC3842N Switching Voltage Regulators with:
- Original HGSEMI Parts
- Worldwide Delivery to USA, India, Australia, Europe & more
- Volume Discounts and OEM Pricing
- Instant Datasheet Access
- Secure and Easy Online Ordering
We’re your trusted source for Semiconductors, Voltage Regulators, and Integrated Circuits - ICs.
FAQs – UC3842N Switching Voltage Regulators
Q1. What is the primary application of UC3842N?
Ideal for switch-mode power supplies and DC-DC converters.
Q2. Does it support current-mode control?
Yes, it uses current-mode PWM control.
Q3. What’s the maximum frequency supported?
Up to 500kHz, adjustable via external components.
Q4. Is it suitable for low-power designs?
Yes, due to its low start-up and operating current.
Q5. Can it be used in LED drivers?
Absolutely — it's a common choice for LED and lighting circuits.
Conclusion
The UC3842N Switching Voltage Regulators by HGSEMI deliver efficient, compact, and cost-effective PWM control for modern power supply systems. As part of your semiconductors toolkit, this IC offers reliable voltage regulation and easy integration in a wide range of applications.
Now available at Xon Electronics — with fast shipping to USA, India, Australia, Europe, and more.