Logo
Contact Us
Cookies Policy
Terms of Use
Privacy Policy
phone
Vivi (Sales)
phone
Lucy (Sales)
phone
Ban (Sales)
phone
+86 755-2845-3125
RFQ List
  • open navigation menu
    • Logo
    • RFQ List
      • Manufacturers
      • Hot Products
      • RFQ
      • Blog
      • Tools
      • Sourcing Solutions
      • PCB/SMT
      • About Us
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    CONTACT US
    Customer Support:
    +86 755-2845-3125
    Room 2709B, 5A Office Building, Longguang Jiuzuan, Hongshan, Longhua District, Shenzhen, China
    [email protected]
    Company
    • Blog
    • About Us
    • Contact Us
    Resources
    • Categories
    • Manufacturers
    • Tools
    • RFQ
    Quick link
    • Privacy Policy
    • Terms of Use
    • Cookies Policy
    • Refund & Return Policy
    • Shipping & Delivery Policy
    Payment
    • Payment method
    • Payment method
    • Payment method
    • Payment method
    Logistics
    • Logistics partner
    • Logistics partner
    • Logistics partner
    • Logistics partner

    © 2026 Copyright. All Rights Reserved. Made by ICAllIn

    Part number
    Part number
    1. Home/
    2. All Categories/
    3. Power/
    4. DC/DC Converters/
    5. CS51221ED16 Onsemi

    CS51221ED16 [Onsemi]

    CS51221ED16
    CS51221ED16

    Part No:

    CS51221ED16

    Category:

    DC/DC Converters

    Manufacturer:

    Onsemi

    Description:

    16 Terminals 3.8V~15V 16-Pin CS51221 DC to DC converter IC SWITCHING CONTROLLER 1 Outputs Transistor Driver

    RoHS Status:

    Datasheet:

    Stock Status:

    Available for RFQ

    Pricing:

    Request Volume Pricing

    Quote Response:

    Within 24 Hours

    Shipping:

    In-stock parts ship in 1–2 business days

    Specification

    Type
    Parameter
    Mounting Type
    Surface Mount
    Package / Case
    16-SOIC (0.154, 3.90mm Width)
    Surface Mount
    YES
    Number of Pins
    16
    Operating Temperature
    -40°C~85°C TA
    Packaging
    Tube
    Published
    2002
    JESD-609 Code
    e0
    Part Status
    Obsolete
    Moisture Sensitivity Level (MSL)
    1 (Unlimited)
    Number of Terminations
    16
    ECCN Code
    EAR99
    Terminal Finish
    Tin/Lead (Sn80Pb20)
    Terminal Position
    DUAL
    Terminal Form
    GULL WING
    Peak Reflow Temperature (Cel)
    240
    Time@Peak Reflow Temperature-Max (s)
    30
    Base Part Number
    CS51221
    Function
    Step-Up/Step-Down
    Number of Outputs
    1
    Output Voltage
    15V
    Output Type
    Transistor Driver
    Analog IC - Other Type
    SWITCHING CONTROLLER
    Output Configuration
    Positive, Isolation Capable
    Output Current
    1A
    Voltage - Supply (Vcc/Vdd)
    3.8V~15V
    Control Features
    Current Limit, Frequency Control, Ramp, Soft Start
    Input Voltage (Min)
    4.7V
    Topology
    Forward Converter
    Control Mode
    VOLTAGE-MODE
    Control Technique
    PULSE WIDTH MODULATION
    Rise Time
    60ns
    Synchronous Rectifier
    No
    Fall Time (Typ)
    25 ns
    Switcher Configuration
    SINGLE
    Max Frequency
    1MHz
    Max Duty Cycle
    90 %
    Duty Cycle (Max)
    85%
    Clock Sync
    Yes
    Length
    9.9mm
    Width
    3.9mm
    RoHS Status
    RoHS Compliant
    Lead Free
    Contains Lead

    Products Detail

    CS51221ED16 Overview


    Capsuled in the 16-SOIC (0.154, 3.90mm Width) package, the switching controller suits most application needs. The dc motor controller is adquate to generate for 1 outputs. The pmic is packaged in Tube solid enclosure. It is capable of dealing with Transistor Driver dc switching's output (s). dc switching'sThe supply and operating voltage of the dc control are 3.8V~15V. Qualified to work in a -40°C~85°C TA dc switcher. Surface Mount makes it suitable for general dc dc regulator. The dcdc regulator features Current Limit, Frequency Control, Ramp, Soft Start for efficient switching control. The switch converters are connected to a SWITCHING CONTROLLER analog IC. Terminal (s) of the switching converters are designed at the DUAL position. 16 terminations with a variety of function. To name a few of the control techniques these dc dc converter ics adapt, it includes PULSE WIDTH MODULATION. Other relevant dc to dc converter ics can be found by searching "CS51221". Switching converter has a total of 16 pins. Switching converter is a type of Switching Regulator or Controllers in particular. The minimum input voltage of the dc dc voltage regulator should be 4.7V. According to the test statistics, DC regulator outputs 15V voltage. The dc dc regulator's usual output current is 1A, which should be noted down when you start a project. To ensure the reliability under power-up and power-down, the maximum duty cycle of the voltage regulator dc to dc is set as 90 %. The max frequency of the pmic can reach 1MHz.

    CS51221ED16 Features


    Transistor Driver Outputs
    Current Limit, Frequency Control, Ramp, Soft Start
    PULSE WIDTH MODULATION
    Max Duty Cycle: 90 %


    CS51221ED16 Applications


    There are a lot of ON Semiconductor
    CS51221ED16 DC to DC converter applications.


    • CNC system
    • Servo drive system
    • Digital display device
    • Linear guide
    • Ball screw pair
    • Computer application technology
    • Network technology
    • Automation technology
    • CMM
    • Various precision measuring instruments

    Documents

    Datasheets:

    CS51221

    PCN Obsolescence/ EOL:

    Multiple Devices 27/Jun/2007

    ReachStatement:

    ON-Semiconductor-company-79.pdf
    Product FAQ

    1. Is CS51221ED16 available for RFQ?

    Yes. CS51221ED16 by Onsemi is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

    2. Why is there no fixed price for CS51221ED16?

    Pricing for CS51221ED16 can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

    3. What are the key specifications of CS51221ED16?

    CS51221ED16 is a Onsemi DC/DC Converters with Packaging: Tube and Time@Peak Reflow Temperature-Max (s): 30 and Moisture Sensitivity Level (MSL): 1 (Unlimited). Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for CS51221ED16?

    Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

    5. How soon can CS51221ED16 be shipped?

    If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

    6. Can you suggest alternatives to CS51221ED16?

    Yes. If CS51221ED16 is unavailable, obsolete, or does not meet your required lead time, we can help check similar Onsemi DC/DC Converters parts or compatible alternatives.

    RFQ

    Part Number:

    CS51221ED16

    Manufacturer:

    Onsemi

    Looking for Pricing? Contact us for volume pricing.

    Shipping & Warranty

    Fast Dispatch: Ships in 5-7 days(in-stock parts within 1-2 days)

    Unishop Global Export: 1-7 days, $40.00

    Guaranteed Delivery: Door-to-door in 30 days

    Compliant Worldwide Shipping: DHL, FedEx, SF, and UPS.

    Feature

    • 30-Day Guarantee
      30-Day Guarantee
    • Fasted Delivery
      Fasted Delivery
    • Hassle-Free Returns
      Hassle-Free Returns
    • Secure payment method
      Secure payment method

    IMPORTANT NOTICE

    Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

    Featured Product

    BEST SELL
    MT41K512M16VRP-107 IT:P

    MT41K512M16VRP-107 IT:P

    Micron

    BEST SELL
    ISL8215MIRZ

    ISL8215MIRZ

    RENESAS

    BEST SELL
    BAV99-7-F

    BAV99-7-F

    DIODES

    BEST SELL
    TMS320F28334ZJZS

    TMS320F28334ZJZS

    Texas Instruments

    BEST SELL
    MTFC8GAKAJCN-4M IT

    MTFC8GAKAJCN-4M IT

    Micron

    BEST SELL
    UCC28070APW

    UCC28070APW

    Texas Instruments

    BEST SELL
    FS32K118LFT0VLHT

    FS32K118LFT0VLHT

    NXP

    BEST SELL
    MT25QL01GBBB8ESF-0SIT

    MT25QL01GBBB8ESF-0SIT

    Micron

    BEST SELL
    BAV99-7-F-CN

    BAV99-7-F-CN

    Unknown

    BEST SELL
    S9KEAZ128AMLK

    S9KEAZ128AMLK

    NXP

    Related Information
    • Part Number
      Manufacturer
      Stock Status
      Pricing
      RoHS/Datasheet
    • FAN48610BUC50X
      Onsemi
      Available for RFQ
      Request Volume Pricing
      -
    • FAN53601UC182X
      Onsemi
      Available for RFQ
      Request Volume Pricing
      -
    • CS51220EDR16
      Onsemi
      Available for RFQ
      Request Volume Pricing
    • CS5112YDWFR24
      Onsemi
      Available for RFQ
      Request Volume Pricing
      -
    • NCP12700BDNR2G
      Onsemi
      Available for RFQ
      Request Volume Pricing
      -
    • LV5052V-TLM-E
      Onsemi
      Available for RFQ
      Request Volume Pricing
    • FAN5069MTCX
      Onsemi
      Available for RFQ
      Request Volume Pricing
      -
    • ADP3186JRQZ-RL
      Onsemi
      Available for RFQ
      Request Volume Pricing
      -
    • NCP3066DR2G
      Onsemi
      Available for RFQ
      Request Volume Pricing
      -
    • CS51221ED16G
      Onsemi
      Available for RFQ
      Request Volume Pricing

    NCP5306DW

    NCP5306DW

    Onsemi

    MC33166D2TG

    MC33166D2TG

    Onsemi

    KA3846

    KA3846

    Onsemi

    LV5061V-TLM-H

    LV5061V-TLM-H

    Onsemi

    NCP1450ASN50T1

    NCP1450ASN50T1

    Onsemi

    FAN5355UC00X

    FAN5355UC00X

    Onsemi

    NCP81250MNTXG

    NCP81250MNTXG

    Onsemi

    FAN53526UC100X

    FAN53526UC100X

    Onsemi

    NCP6924FFCHT1G

    NCP6924FFCHT1G

    Onsemi

    FAN48618BUC53X

    FAN48618BUC53X

    Onsemi

    Solar Panels & Solar Cells(7)Power Condition(27401)Batteries(5298)Battery Chargers(11802)Battery Holders, Clips & Contacts(447)Power Supplies(336747)AC Power Cords(0)AC Power Plugs & Receptacles(207)AC Power Entry Modules(315)DC Power Connectors(33)DC Power Cords(0)Transformers(12577)Power Inverters(7299)Supercapacitors(0)Buffer Modules(892)Thermoelectric Assemblies(2475)

    No recently viewed products