CouponsAPP Download
Assembly Parts LibFor PCBA Only
0Parts Cart
Products
  • In Stock Parts
  • Bom Tool
  • Request a Quote
  • Support
Chat with our live agent for fast reply.
Mon-Fri: 24 hours, Sat: 9am-6pm, GMT+8
Email Us >
Contact us at support@jlcpcb.com
Typically reply within hours.
Help Center >
Get instant answers.
24/7 Available.
Services & Tools
  • Electronic Parts
  • BOM Tool
  • Request a Quote
  • Manufacturers
  • PCB Assembly
Support
  • Contact Us
  • How to Order
  • User Guides
  • Sourcing Tips
  • Payment Methods
Company
  • About Us
  • Quality Assurance
  • How We Work
  • Certifications
  • Security
  • JLCAPI
  • News
  • Cooperation
  • Careers
Electronics
  • EasyEDA
  • JLCPCB
  • JLCDFM
  • LCSC
  • OSHWLAB
Mechanical
  • JLC3DP
  • JLCCNC
  • JLCMC
Download JLCONE Desktop—Get $524 Exclusive Coupons
WindowsMACAndroidIOS
CONNECT WITH US
Services & Tools
Electronic PartsBOM ToolRequest a QuoteManufacturersPCB Assembly
Support
Contact UsHow to OrderUser GuidesSourcing TipsPayment Methods
Company
About UsQuality AssuranceHow We WorkCertificationsSecurityJLCAPINewsCooperationCareers
Electronics
EasyEDAJLCPCBJLCDFMLCSCOSHWLAB
Mechanical
JLC3DPJLCCNCJLCMC

Download JLCONE Desktop—Get $524 Exclusive Coupons

WindowsMAC
AndroidIOS

CONNECT WITH US

© 2026 JLCPCB.COM All Rights Reserved.Privacy PolicyTerms & ConditionsCookies Policy
  1. JLCPCB
  2. Parts Library
  3. All Components
  4. Power Management (PMIC)
  5. DC-DC Converters
  6. LGS53605A
LGS53605A - 1
LGS53605A - 2
LGS53605A - 3
Extended1/3
* Images are for reference only

LGS53605A

Attributes
Value
Manufacturer
Legend-Si
MFR.Part #
LGS53605A
JLCPCB Part #
C5369199
Package
QFN-24(4x4)
Description
-40℃~+125℃@(TJ) 1 4V~20V 5A 600uA 800kHz~2MHz Adjustable Buck Buck Built-in Yes QFN-24(4x4) DC-DC Converters ROHS
EasyEDA Libraries
Datasheet
Download
Source
JLCPCB
Assembly Type
SMT Assembly
PCBA Type
Economic and Standard
MSL Level
MSL 3

Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.

AttributesValue
CategoryPower Management (PMIC)/DC-DC Converters
ManufacturerLegend-Si
PackageQFN-24(4x4)
Operating Temperature-40℃~+125℃@(TJ)
FunctionStep-down type
Synchronous RectifierYes
Frequency - Switching800kHz~2MHz
Voltage - Supply4V~20V
Output TypeAdjustable
Output Current5A
Quiescent Current600uA
FeaturesLight load efficient mode、Adjustable soft-start、Operating status indication、Frequency synchronization、Output voltage tracking、Built-in LDO regulator
Switch tube (built-in/external)Built-in
TopologyBuck
Output Voltage4V~20V
Number of Outputs1
Results remaining: 0

  1. JLCPCB
  2. Parts Library
  3. All Components
  4. Power Management (PMIC)
  5. DC-DC Converters
  6. LGS53605A
LGS53605A

* Images are for reference only

LGS53605A

Extended
Manufacturer

Legend-Si

MFR.Part #
LGS53605A
JLCPCB Part #
C5369199
Package
QFN-24(4x4)
Description
-40℃~+125℃@(TJ) 1 4V~20V 5A 600uA 800kHz~2MHz Adjustable Buck Buck Built-in Yes QFN-24(4x4) DC-DC Converters ROHS
EasyEDA Libraries
Datasheet
Download
Source
JLCPCB
Assembly Type
SMT Assembly
PCBA Type
Economic and Standard
MSL Level
MSL 3

Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.

LGS53605A

* Images are for reference only

LGS53605A

Extended
Manufacturer

Legend-Si

MFR.Part #
LGS53605A
JLCPCB Part #
C5369199
Package
QFN-24(4x4)
Description
-40℃~+125℃@(TJ) 1 4V~20V 5A 600uA 800kHz~2MHz Adjustable Buck Buck Built-in Yes QFN-24(4x4) DC-DC Converters ROHS
EasyEDA Libraries
Datasheet
Download
Source
JLCPCB
Assembly Type
SMT Assembly
PCBA Type
Economic and Standard
MSL Level
MSL 3

Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.

LGS53605A Specifications

LGS53605A technical specifications, attributes, and parameters.

AttributesValue
CategoryPower Management (PMIC)/DC-DC Converters
ManufacturerLegend-Si
PackageQFN-24(4x4)
Operating Temperature-40℃~+125℃@(TJ)
FunctionStep-down type
Synchronous RectifierYes
Frequency - Switching800kHz~2MHz
Voltage - Supply4V~20V
Output TypeAdjustable
Output Current5A
Quiescent Current600uA
FeaturesLight load efficient mode、Adjustable soft-start、Operating status indication、Frequency synchronization、Output voltage tracking、Built-in LDO regulator
Switch tube (built-in/external)Built-in
TopologyBuck
Output Voltage4V~20V
Number of Outputs1
Results remaining: 0

PCB Assembly Tips

From components to fully assembled PCBs. JLCPCB supports PCB assembly for the LGS53605A. Sign up to receive and start your assembly today →

  • 1

    Step 1 - Pre-order the parts you need from JLCPCB.

  • 2

    Step 2 - Place a PCBA order to have those parts assembled onto your boards.

  • 3

    Step 3 - JLCPCB manufactures and assembles your boards in as fast as 3 days.

JLCPCB Assembly Tutorial
Learn more about JLCPCB Assembly

LGS53605A Documents

LGS53605A datasheets or manufacturer documentation.

Datasheet: LGS53605A Datasheet (PDF)

LGS53605A Schematic Symbol & PCB Footprint

The LGS53605A schematic symbol and PCB footprint are available in the EasyEDA PCB design tool.