XL4015E1

Synchronous Buck Converter

The XL4015E1 is a synchronous buck converter from XLSEMI. View the full XL4015E1 datasheet below including key specifications, pinout, electrical characteristics, absolute maximum ratings.

Official XL4015E1 datasheet (PDF) — the source this page was extracted from.

Manufacturer

XLSEMI

XL4015E1 Key Specifications

Parameter	Value
Efficiency	up to 96%
Output Current	5A
Maximum Duty Cycle	100%
Input Voltage Range	8V to 36V
Switching Frequency	180KHz (typ)
Output Voltage Range	1.25V to 32V
Minimum Dropout Voltage	0.3V
Quiescent Supply Current	2.1mA (typ), 5mA (max)
Operating Junction Temperature	-40°C to 125°C

XL4015E1 Overview

Part: XL4015E1 — XLSEMI

Type: PWM Buck (Step-Down) DC/DC Converter

Description: An 8V to 36V input, 5A constant output current, 180 KHz fixed frequency PWM buck converter with high efficiency up to 96% and excellent line and load regulation.

Operating Conditions:

Supply voltage: 8V to 36V
Operating junction temperature: -40 to 125 °C
Output adjustable from 1.25V to 32V
Fixed switching frequency: 180 KHz

Absolute Maximum Ratings:

Max input voltage: 40 V
Max feedback pin voltage: 7 V
Max output switch pin voltage: Vin
Max operating junction temperature: 125 °C
Max storage temperature: 150 °C

Key Specs:

Feedback Voltage (VFB): 1.225 V min, 1.25 V typ, 1.275 V max (Vin = 8V to 40V, Vout = 5V, Iload = 0.5A to 5A)
Efficiency (η): 87% typ (Vin=12V, Vout=5V, Iout=5A)
Efficiency (η): 93% typ (Vin=24V, Vout=12V, Iout=4A)
Quiescent Supply Current (Iq): 2.1 mA typ, 5 mA max (VFB=5V)
Oscillator Frequency (Fosc): 144 KHz min, 180 KHz typ, 216 KHz max
Switch Current Limit (IL): 7 A typ (VFB=0V)
Max. Duty Cycle (DMAX): 100% typ (VFB=0V)
Output Power PMOS Rdson: 60 mΩ typ, 80 mΩ max (VFB=0V, Vin=12V, ISW=5A)

Features:

Wide 8V to 36V Input Voltage Range
Output Adjustable from 1.25V to 32V
Maximum Duty Cycle 100%
Minimum Drop Out 0.3V
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

Applications:

LCD Monitor and LCD TV
Portable instrument power supply
Telecom / Networking Equipment

Package:

TO263-5L

XL4015E1 Features

Wide 8V to 36V Input Voltage Range
Output Adjustable from 1.25V to 32V
Maximum Duty Cycle 100%
Minimum Drop Out 0.3V
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

XL4015E1 Applications

LCD Monitor and LCD TV
Portable instrument power supply
Telecom / Networking Equipment

Figure1. Package Type of XL4015

XL4015E1 Pin Configuration

XL4015E1 Pinout

Package: TO-263-5 (TO-263-5L)

Pin Number	Pin Name	Type	Description
1	GND	P	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	I	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	O	Power Switch Output Pin (SW). SW is the switch node that supplies power to the output.
4	VC	P	Internal Voltage Regulator Bypass Capacitor Pin (VC). The VC pin connects a 1µF capacitor to VIN.
5	VIN	P	Supply Voltage Input Pin. XL4015 operates from 8V to 36V DC voltage. Bypass VIN to GND with a suitably large capacitor to eliminate noise on the input.
—	Metal Tab	P	Connected to SW internally

Notes

Pin numbers verified against TO-263-5L package diagram (top view).
Metal tab is present on the package and is internally connected to the SW pin.
VIN operating range: 8V to 36V DC.
FB feedback threshold: 1.25V.
VC requires 1µF bypass capacitor to VIN.

XL4015E1 Electrical Characteristics

Ta = 25°C;unless otherwise specified.

Symbol	Parameter	Test Condition	Min.	Typ.	Max.	Unit
System parameters test circuit figure4	System parameters test circuit figure4	System parameters test circuit figure4	System parameters test circuit figure4	System parameters test circuit figure4	System parameters test circuit figure4	System parameters test circuit figure4
VFB	Feedback Voltage	Vin =8Vto40V,Vout=5V Iload=0.5A to5A	1.225	1.25	1.275	V
η	Efficiency	Vin=12V,Vout=5V Iout=5A	-	87	-	%
η	Efficiency	Vin=24V,Vout=12V Iout=4A	-	93	-	%

XL4015E1 Absolute Maximum Ratings

Parameter	Symbol	Value	Unit
Input Voltage	Vin	-0.3 to 40	V
Feedback Pin Voltage	V FB	-0.3 to 7	V
Output Switch Pin Voltage	V SW	-0.3 to Vin	V
Power Dissipation	P D	Internally limited	mW
Thermal Resistance (TO263-5L) (Junction to Ambient, NoHeatsink, Free Air)	R JA	30	o C/W
Operating Junction Temperature	T J	-40 to 125	o C
Storage Temperature	T STG	-65 to 150	o C
Lead Temperature (Soldering, 10 sec)	T LEAD	260	o C
ESD(HBM)		>2000	V

Note1: Stresses greater than those listed under Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

5A180KHz36VBuckDCtoDCConverter	XL4015

XL4015E1 Typical Application

Figure4. XL4015 Typical Application Circuit (VIN=8V~36V, VOUT=5V/5A)

XL4015E1 Package Information

TO263-5L

Symbol	Dimensions In Millimeters	Dimensions In Millimeters	Dimensions In Millimeters	Dimensions In Inches	Dimensions In Inches	Dimensions In Inches
Symbol	Min.	Nom.	Max.	Min.	Nom.	Max.
A	4.45	4.60	4.70	0.175	0.181	0.185
A1	1.22	1.27	1.32	0.048	0.050	0.052
A3	0.00	-	0.15	0.000	-	0.006
b	0.71	-	0.97	0.028	-	0.038
c	0.38	-	0.76	0.015	-	0.030
D1	8.38	8.70	9.00	0.330	0.343	0.354
E	9.91	10.16	10.39	0.390	0.400	0.410
E3	5.00	6.50	8.00	0.197	0.256	0.315
e	1.70 REF.	1.70 REF.	1.70 REF.	0.067 REF.	0.067 REF.	0.067 REF.
H	-	-	14.35	-	-	0.565
H2	0.90	1.27	1.42	0.035	0.050	0.056
L	-	1.98	-	-	0.078	-
L4	-	0.76	-	-	0.030	-
M1	-	6.12	-	-	0.241	-
M2	-	3.35	-	-	0.132	-
N	-	7.30	-	-	0.287	-

TO263-5L

5A180KHz36VBuckDCtoDCConverter	XL4015

XL4015E1 Ordering Information

Order Information	Marking ID	Package Type	EcoPlan	Packing Type Supplied As
XL4015E1	XL4015E1	TO263-5L	RoHS&HF	800Unitson Tape&Reel

Variants on the same datasheet

These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.

Part Number	Manufacturer	Package
XL4015	XLSEMI	PCB Module

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LMR38010FDDAR – Texas Instruments, Synchronous Buck Converter
AP63357DV-7 – Diodes Incorporated, Synchronous Buck Converter

All Switching Regulators (Buck) datasheets All XLSEMI datasheets (4)

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

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