---
product_id: 433271956
title: "XL1509-ADJ - 40V Buck DC to DC Converter - SOIC8 Package"
brand: "generic"
price: "₨2421"
currency: LKR
in_stock: false
reviews_count: 2
url: https://www.desertcart.lk/products/433271956-xl1509-adj-40v-buck-dc-to-dc-converter-soic8-package
store_origin: LK
region: Sri Lanka
---

# 4.5V-40V wide input range 2A constant output current Output adjustable 1.23V-37V XL1509-ADJ - 40V Buck DC to DC Converter - SOIC8 Package

**Brand:** generic
**Price:** ₨2421
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Power your projects with precision and protection — don’t get left behind!

## Quick Answers

- **What is this?** XL1509-ADJ - 40V Buck DC to DC Converter - SOIC8 Package by generic
- **How much does it cost?** ₨2421 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/433271956-xl1509-adj-40v-buck-dc-to-dc-converter-soic8-package)

## Best For

- generic enthusiasts

## Why This Product

- Trusted generic brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Voltage Control:** Adjust output voltage seamlessly from 1.23V up to 37V to fit your exact needs
- • **Built-in Smart Protections:** Thermal shutdown and dual current limit functions safeguard your device
- • **Compact & Efficient Design:** SOIC8 package with 150KHz fixed switching frequency maximizes efficiency and space
- • **Power Flexibility Unleashed:** Supports a broad 4.5V to 40V input range for versatile applications
- • **Reliable High Current Delivery:** Delivers a steady 2A output current ensuring stable performance under load

## Overview

The XL1509-ADJ is a high-efficiency buck DC-DC converter featuring a wide 4.5V to 40V input range and adjustable output from 1.23V to 37V. It delivers a constant 2A current with built-in thermal and current limit protections, housed in a compact SOIC8 package, making it ideal for modern electronics like LCD monitors, set-top boxes, and networking equipment.

## Description

XL1509-ADJ-40V Buck DC to DC Converter – SOIC8 The XL1509 is a 150 kHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 2A load with high efficiency, low ripple, and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an overcurrent protection function is built inside. When the second current limit function happens, the operation frequency will be reduced from 150KHz to 50KHz. An internal compensation block is built in to minimize external component count.

Review: Not working - Doesn't work
Review: Too high cost - Too high cost

## Features

- Part No: XL1509-ADJ; Manufacturer: XLSEMI; Wide 4.5V to 40V Input Voltage Range; 3.3V,5V,12V, and adjustable 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 Optimize Power Transistor; High efficiency; Excellent line and load regulation
- TTL shutdown capability; ON/OFF pin with hysteresis function; Built-in thermal shutdown function; Built-in current limit function; Built-in second current limit function; Available in SOIC8 package
- Applications Include:- LCD Monitor and LCD TV; Digital Photo Frame; Set-up Box; ADSL Modem; Telecom / Networking Equipment
- Packaged by:- Sharvi Technologies (OPC) Pvt. Ltd.; Address:- #09, CK Nagar, AECS layout, Hosa Road, Bangalore-560100

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Generic |
| Manufacturer | Generic |
| Country of Origin | China |
| Number of Memory Sticks | 1 |
| Item part number | ST-2009SD0590 |

## Images

![XL1509-ADJ - 40V Buck DC to DC Converter - SOIC8 Package - Image 1](https://m.media-amazon.com/images/I/31h9HRibEJL.jpg)

## Customer Reviews

### ⭐ Not working
*by U***. on 28 August 2024*

Doesn't work

### ⭐ Too high cost
*by R***N on 28 January 2024*

Too high cost

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**Shop now:** [https://www.desertcart.lk/products/433271956-xl1509-adj-40v-buck-dc-to-dc-converter-soic8-package](https://www.desertcart.lk/products/433271956-xl1509-adj-40v-buck-dc-to-dc-converter-soic8-package)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-03*