The XL4015 is a 180 kHz fixed frequency PWM buck (step-down) DC to DC converter, capable of driving a 5 Ampere load with high efficiency, low ripple, and excellent line and load regulation. This video will cover XL4015 features, alternatives, package, pinout, and other aspects. Please have a look.
7995
Mar 21, 2022
Crystal Field
Review of XL4015 5A 1.25 -30V DC CC Buck converter with thermal image
The XL4015 is a 180 kHz fixed frequency PWM buck (step-down) DC to DC converter, capable of driving a 5 Ampere load with high efficiency, low ripple, and excellent line and load regulation. This video will cover XL4015 features, alternatives, package, pinout, and other aspects. Please have a look.
XL4015E1
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.81502 | $0.82 |
| 10+ | $0.76889 | $7.69 |
| 100+ | $0.72537 | $72.54 |
| 500+ | $0.68431 | $342.16 |
| 1000+ | $0.64557 | $645.57 |
The XL4015 5A CC /CV Adjustable Step-Down DC-DC Buck Converter Module is a linear module with constant voltage and constant current (CC-CV) functions and excellent performance. When it's being used as a charger. This module is stable and uses a nice chip as its core. It also has a low ripple of 50 mV.
This product is a 300 kHz fixed frequency PWM buck (step-down) DC/DC module that can drive a 0-5A (Max) Adjustable load while maintaining high efficiency, minimal ripple, and excellent line and load regulation. Use as a step-down module with built-in overcurrent protection.
The DC/DC buck module is used in applications where the input voltage is higher than the output voltage, such as batteries, power transformers, DIY adjustable regulated power supplies, and portable instrument power supplies for LCD monitors and LCD TVs. Industrial equipment buck, telecom/networking equipment, 24V car laptop power supply 12V to 3.3 V, 12V to 5V, 24V to 5V, 24V to 12V. 36V buck to 24V. and so on.
This module's output voltage and current can be adjusted. Because it is capable of CC-CV, it may also be used as a dedicated charger for Lithium Batteries (Li-Ion, LiPo ).
Symbol
Footprint
Wide 8V to 36 V Input Voltage Range
Output Adjustable from 1.25 V to 32V
Maximum Duty Cycle 100 %
Minimum Drop Out 0.3 V
Fixed 180KHz Switching Frequency
5A Constant Output Current Capability
Internal Optimize Power MOSFET
High efficiency up to 96 %
Excellent line and load regulation
Built-in thermal shutdown function
Built-in current limit function
Built-in output short protection function
Available in TO263-5L package
① LCD Monitor and LCD TV
② Portable instrument power supply
③ Telecom / Networking Equipment
| Pin Number | Pin Name | Description |
| 1 | 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 XL4015 |
| 2 | FB | Feedback Pin (FB). Through an external resistor divider network, FB senses the output voltage and regulates it. The feedback threshold voltage is 1.25V. |
| 3 | SW | Power Switch Output Pin (SW). SW is the switch node that supplies power to the output |
| 4 | VC | Internal Voltage Regulator Bypass Capacity. In a typical system application, The VC pin connects a 1uf capacity to VIN. |
| 5 | VIN | Supply Voltage Input Pin. XL4015 operates from an 8V to 36V DC voltage. Bypass Vin to GND with a suitably large capacitor to eliminate noise on the input. |
| Width | 20mm |
| Height | 10mm |
| Depth | 40mm |
| Weight | 30g |
XLSEMI XL4015E1 technical specifications, attributes, parameters and parts with similar specifications to XLSEMI XL4015E1.
| Product Attribute | Attribute Value | |
|---|---|---|
| Package / Case | TO-263-5 | |
| Packaging | Tape & Reel (TR) | |
| Function | Step-Down | |
| Number of Outputs | 1Output | |
| Voltage - Input (Max) | 36V |
| Product Attribute | Attribute Value | |
|---|---|---|
| Output Type | Adjustable | |
| Voltage - Input (Min) | 8V | |
| Output Configuration | Positive | |
| Current - Output | 5A | |
| Voltage - Output (Min/Fixed) | 1.25V |
| Product Attribute | Attribute Value | |
|---|---|---|
| Topology | Buck | |
| Frequency - Switching | 180kHz | |
| Synchronous Rectifier | No | |
| Voltage - Output (Max) | 32V | |
| RoHS Status | RoHS Compliant |
In any case, using this module is meaningless unless you know how to use it effectively. Allow me to demonstrate the (believed to be correct) method given by my dependable foreign provider. Assume you wish to get 1A current from a 9VDC source. Connect a digital multimeter across the output connector (dialed to a suitable dc voltage range ) and adjust the V-ADJ trim pot to get a 9.0VDC result. After that, set the multimeter to the appropriate current range and adjust the I-ADJ trim pot to 1.0A. Remove the digital multimeter. connect the load, and turn it on. It's worth noting that turning one trim pot may have a minor effect on the setting of the other - this isn't a significant deal, so leave it alone!
Although the XL4015 module has many good characteristics that a buck converter should have, it is missing one important feature.
The module has no means of changing the output current to the load specs' chosen levels.
As a result, if you try to charge a Li-Ion battery with an XL4015 module at a rate of 2 amps, you won't be able to do so due to the aforementioned limitation.
Similarly, because the module is rated for a fixed 5 amp current, you'd be unhappy if you wished to run a 3.3 V LED at a 3 amp maximum current rate.
Download datasheets and manufacturer documentation for XL4015E1
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