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. Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
  6. CM1821B30
CM1821B30 - 1
CM1821B30 - 2
CM1821B30 - 3
Extended1/3
* Images are for reference only

CM1821B30

Attributes
Value
Manufacturer
iCM
MFR.Part #
CM1821B30
JLCPCB Part #
C22446624
Package
SOT-23-3
Description
-40℃~+85℃@(Ta) 1 150mA 30V 3V 3uA 50dB@(1kHz) 600mV@(100mA) Fixed Over Temperature Protection、Soft Start、Short Circuit Protection Positive SOT-23-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS
EasyEDA Libraries
ECCN
-
Datasheet
Download
Source
JLCPCB
Assembly Type
Wave Soldering
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)/Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
ManufactureriCM
PackageSOT-23-3
Power Supply Rejection Ratio (PSRR)50dB@(1kHz)
Operating Temperature-40℃~+85℃@(Ta)
standby current3uA
Output TypeFixed
Voltage - Supply30V
Output Current150mA
Output ConfigurationPositive
FeaturesOver Temperature Protection、Soft Start、Short Circuit Protection
Voltage Dropout600mV@(100mA)
Output Voltage3V
Number of Outputs1
Results remaining: 0

  1. JLCPCB
  2. Parts Library
  3. All Components
  4. Power Management (PMIC)
  5. Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
  6. CM1821B30
CM1821B30

* Images are for reference only

CM1821B30

Extended
Manufacturer

iCM

MFR.Part #
CM1821B30
JLCPCB Part #
C22446624
Package
SOT-23-3
Description
-40℃~+85℃@(Ta) 1 150mA 30V 3V 3uA 50dB@(1kHz) 600mV@(100mA) Fixed Over Temperature Protection、Soft Start、Short Circuit Protection Positive SOT-23-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS
EasyEDA Libraries
ECCN
-
Datasheet
Download
Source
JLCPCB
Assembly Type
Wave Soldering
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.

CM1821B30

* Images are for reference only

CM1821B30

Extended
Manufacturer

iCM

MFR.Part #
CM1821B30
JLCPCB Part #
C22446624
Package
SOT-23-3
Description
-40℃~+85℃@(Ta) 1 150mA 30V 3V 3uA 50dB@(1kHz) 600mV@(100mA) Fixed Over Temperature Protection、Soft Start、Short Circuit Protection Positive SOT-23-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS
EasyEDA Libraries
ECCN
-
Datasheet
Download
Source
JLCPCB
Assembly Type
Wave Soldering
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.

CM1821B30 Specifications

CM1821B30 technical specifications, attributes, and parameters.

AttributesValue
CategoryPower Management (PMIC)/Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
ManufactureriCM
PackageSOT-23-3
Power Supply Rejection Ratio (PSRR)50dB@(1kHz)
Operating Temperature-40℃~+85℃@(Ta)
standby current3uA
Output TypeFixed
Voltage - Supply30V
Output Current150mA
Output ConfigurationPositive
FeaturesOver Temperature Protection、Soft Start、Short Circuit Protection
Voltage Dropout600mV@(100mA)
Output Voltage3V
Number of Outputs1
Results remaining: 0

PCB Assembly Tips

From components to fully assembled PCBs. JLCPCB supports PCB assembly for the CM1821B30. 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

CM1821B30 Schematic Symbol & PCB Footprint

The CM1821B30 schematic symbol and PCB footprint are available in the EasyEDA PCB design tool.