XL1509-5.0E1 2A 150KHz 40V Buck DC/DC Power Converter
4.5V~40V input range, 2A constant output current capability DC/DC power converter
Key Features
- Wide 4.5V to 40V input voltage range
- 3.3V, 5V, 12V, and adjustable output versions
- Output adjustable from 1.23V to 37V
- Maximum duty cycle: 100%
- Minimum drop out: 1.5V
- Fixed 150KHz switching frequency
- 2A constant output current capability
- Internal optimized power transistor
- High efficiency operation
- Excellent line and load regulation
- TTL shutdown capability
- ON/OFF pin with hysteresis function
- Built-in thermal shutdown protection
- Built-in current limit function
- Built-in secondary current limit function
- Available in SOIC8 package
Applications
- LCD Monitor and LCD TV
- Digital Photo Frame
- Set-up Box
- ADSL Modem
- Telecom / Networking Equipment
Pin Description
| Pin Number |
Pin Name |
Description |
| 1 |
VIN |
Supply Voltage Input Pin. XL1509 operates from a 4.5V to 40V DC voltage. Bypass Vin to GND with a suitably large capacitor to eliminate noise on the input. |
| 2 |
OUTPUT |
Power Switch Output Pin (SW). Output is the switch node that supplies power to the output. |
| 5~8 |
GND |
Ground Pin. Care must be taken in layout. This pin should be placed outside of the Schottky Diode to output capacitor ground path to prevent switching current spikes from inducing voltage noise into XL1509. |
| 3 |
FEEDBACK |
Feedback Pin (FB). Through an external resistor divider network, Feedback senses the output voltage and regulates it. The feedback threshold voltage is 1.23V. |
| 4 |
ON/OFF |
Enable Pin. Drive ON/OFF pin low to turn on the device, drive it high to turn it off. Floating is default low. |
Product Images
Packaging & Shipping
Standard export packaging available. Customers can choose from cartons, wooden cases, and wooden pallets according to their requirements.
Frequently Asked Questions
How to obtain the price?
We typically provide quotations within 24 hours of receiving your inquiry (excluding weekends and holidays). For urgent pricing requests, please contact us directly.
What is your delivery time?
Small batches typically ship within 7-15 days, while large batch orders may require approximately 30 days depending on order quantity and season.
What are your payment terms?
Factory pricing with 30% deposit and 70% balance payment via T/T before shipment.
What are the shipping options?
Available shipping methods include sea freight, air freight, and express delivery (EMS, UPS, DHL, TNT, FEDEX). Please confirm your preferred method before ordering.
