UMW XL1509E-3.3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.11 | $1.11 |
| 15+ | $0.26 | $3.90 |
| 25+ | $0.25 | $6.25 |
| 50+ | $0.24 | $12.00 |
| 100+ | $0.21 | $21.00 |
| N+ | $0.04 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | UMW |
| Product Series | XL1509 |
| Packaging | Tape & Reel (TR) | |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 3.168V |
| Voltage - Output (Max) | - |
| Current - Output | 3A |
| Frequency - Switching | 150kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOP |
| ROHS |  |
The XL1509E-3.3 from UMW is a 150kHz fixed-frequency PWM buck (step-down) DC-DC converter. It accepts a wide input voltage from 4.5V to 40V and delivers a regulated 3.3V output with a maximum load current of 3A. Built-in protection features include thermal shutdown and current limiting. The device is available in an 8-SOIC package, making it suitable for space-constrained applications such as battery-powered equipment, automotive electronics, and industrial control systems.
- High Efficiency: 150kHz switching frequency reduces switching losses, achieving up to 90% efficiency for longer battery life.
- Wide Input Range: 4.5V to 40V input accommodates unregulated supplies and automotive transients without external clamping.
- 3A Output Current: Supports high-current loads like FPGAs and multiple sensors without additional parallel converters.
- Compact SOIC-8 Package: Small footprint with minimal external components (inductor, diode, capacitors) simplifies PCB layout.
Battery-Powered Devices
Ideal for portable electronics requiring efficient step-down from multi-cell batteries (e.g., 12V/24V packs) to a stable 3.3V logic rail. The 150kHz switching frequency allows for small external components, reducing board space while maintaining high efficiency.
Automotive Systems
With a wide 4.5V to 40V input range, this buck converter handles load-dump and cold-crank conditions in vehicles. It provides a regulated 3.3V supply for ECUs, sensors, and infotainment systems, ensuring reliable operation across varying battery voltages.
Industrial Control
In factory automation and PLCs, the XL1509E-3.3 steps down 24V industrial rails to 3.3V for microcontrollers and digital I/O. Its 3A current capability supports multiple peripheral loads, and the robust SOIC package suits harsh environments.
Networking Equipment
Routers, switches, and small-cell base stations often use 12V or 24V backplanes. This converter efficiently generates a clean 3.3V supply for FPGAs, ASICs, and DDR memory, minimizing heat dissipation in enclosed spaces.
White Goods and Appliances
For smart appliances with 12V-40V input from AC-DC front ends, the XL1509E-3.3 provides a cost-effective solution for powering touch panels, Wi-Fi modules, and display drivers, simplifying the power tree design.
- Q: What type of converter is the XL1509E-3.3?
- A: It is a Buck (step-down) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4.5V to 40V.
- Q: What is the output voltage?
- A: The fixed output voltage is 3.3V (minimum 3.168V).
- Q: What is the maximum output current?
- A: It can deliver up to 3A of continuous output current.
- Q: What is the switching frequency?
- A: The switching frequency is 150kHz.
- Q: What package is available?
- A: It comes in an 8-SOIC (0.154", 3.90mm Width) package.
XL1509E-3.3.pdf
- Q: What type of converter is the XL1509E-3.3?
- A: It is a Buck (step-down) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4.5V to 40V.
- Q: What is the output voltage?
- A: The fixed output voltage is 3.3V (minimum 3.168V).
- Q: What is the maximum output current?
- A: It can deliver up to 3A of continuous output current.
- Q: What is the switching frequency?
- A: The switching frequency is 150kHz.
- Q: What package is available?
- A: It comes in an 8-SOIC (0.154", 3.90mm Width) package.
