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CS51221EDR16G PMIC - Voltage Regulators - DC DC Switching Controllers by ON Semiconductor

CS51221EDR16G is a PMIC - Voltage Regulators - DC DC Switching Controllers model from ON Semiconductor, presented on TrustCompo for buyers who need clear sourcing and review context before RFQ. This listing sits in the Integrated Circuits (ICs) / PMIC - Voltage Regulators - DC DC Switching Controllers product path. Known package information currently points to 16SOIC under the ON Semiconductor brand listing. IC REG CTRLR FWRD CONV 16SOIC. TrustCompo combines the available model, brand, hierarchy, and specification details around CS51221EDR16G so buyers can move faster from review to quotation.

RoHS
Datasheet
CS51221EDR16G PMIC - Voltage Regulators - DC DC Switching Controllers by ON Semiconductor | TrustCompo
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Part Number

CS51221EDR16G

Internal code

TCE000110143

Package

16SOIC

Manufacturer

ON Semiconductor

Key specifications

Series

-

Min Quantity

1

Description

IC REG CTRLR FWRD CONV 16SOIC

key Attributes

-

Technical document

Open The Official Datasheet

Review the latest datasheet for CS51221EDR16G from ON Semiconductor in a separate tab so engineers and buyers can check package, electrical characteristics, and application details without leaving this product page.

View CS51221EDR16G Datasheet

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RoHS, REACH, and lead-free documentation can be confirmed during RFQ
Traceability and Certificate of Conformance support available on request
Pre-shipment inspection report support for quality review

Trust signals

Globally recognized certifications

4 certifications

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ISO 9001

Quality management processes for more consistent sourcing and handling.

AS9120B

Aerospace-focused distribution controls for traceability and reliability.

ISO 14001

Environmental management discipline across warehouse and operating workflows.

ESD Control

Electrostatic handling standards to help protect sensitive components.

Ordering workflow

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Structured product content

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Product overview

Overview


The CS51221 fixed frequency feed forward voltage mode PWM controller contains all of the features necessary for basic voltage mode operation. This PWM controller has been optimized for high frequency primary side control operation. In addition, this device includes such features as: Soft−Start, accurate duty cycle limit control, less than 50A startup current, over and undervoltage protection, and bidirectional synchronization.
The CS51221 is available in a 16 lead SOIC narrow surface mount package.
Features
• 1.0 MHz Frequency Capability
• Fixed Frequency Voltage Mode Operation, with Feed Forward

Thermal Shutdown
• Undervoltage Lock−Out
• Accurate Programmable Max Duty Cycle Limit
• 1.0 A Sink/Source Gate Drive
• Programmable Pulse−By−Pulse Overcurrent Protection
• Leading Edge Current Sense Blanking
• 75 ns Shutdown Propagation Delay
• Programmable Soft−Start
• Undervoltage Protection
• Overvoltage Protection with Programmable Hysteresis
• Bidirectional Synchronization
• 25 ns GATE Rise and Fall Time (1.0 nF Load)
• 3.3 V 3% Reference Voltage Output
• Pb−Free Packages are Available
*

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Popular Specs Surfaced First

Product Parameter

Terminal Finish

Tin (Sn)

Product Parameter

Control Technique

PULSE WIDTH MODULATION

Product Parameter

Analog IC - Other Type

SWITCHING CONTROLLER

Product Parameter

Control Mode

VOLTAGE-MODE

Product Parameter

Max Frequency

1MHz

Product Parameter

Switcher Configuration

SINGLE

Terminal Finish
Tin (Sn)
Control Technique
PULSE WIDTH MODULATION
Analog IC - Other Type
SWITCHING CONTROLLER
Control Mode
VOLTAGE-MODE
Max Frequency
1MHz
Switcher Configuration
SINGLE
Rise Time
60ns
Function
Step-Up/Step-Down
Output Configuration
Positive, Isolation Capable
Topology
Forward Converter
Max Duty Cycle
90 %
Control Features
Current Limit, Frequency Control, Ramp, Soft Start
Input Voltage (Min)
4.7V
Voltage - Supply (Vcc/Vdd)
3.8V~15V
JESD-609 Code
e3
Moisture Sensitivity Level (MSL)
1 (Unlimited)
RoHS Status
ROHS3 Compliant
HTSUS
8542.39.0001
ECCN Code
EAR99
Part Status
Active
REACH Status
REACH Unaffected
ECCN
EAR99
Lead Free
Lead Free
Mounting Type
Surface Mount
Factory Lead Time
12 Weeks
Lifecycle Status
ACTIVE (Last Updated: 1 week ago)
Published
2005
Packaging
Tape & Reel (TR)
Halogen Free
Halogen Free
Categories
Integrated Circuits (ICs)
Terminal Position
DUAL
Peak Reflow Temperature (Cel)
260
Terminal Form
GULL WING
Operating Temperature
-40°C~85°C TA
Package / Case
16-SOIC (0.154, 3.90mm Width)
Width
3.9mm
Manufacturer
ON Semiconductor
Subcategory
Switching Regulator or Controllers
Reflow Temperature-Max (S)
40
Number Of Terminations
16
Number Of Pins
16
Mount
Surface Mount
Pbfree Code
yes
Number Of Outputs
1
Length
9.9mm
Output Voltage
15V
Output Current
1A
Fall Time (Typ)
25 ns
Synchronous Rectifier
No
Output Type
Transistor Driver
Sub-Categories
PMIC - Voltage Regulators - DC DC Switching Controllers
Clock Sync
Yes
Max Supply Current
14mA
Duty Cycle (Max)
85%
Base Part Number
CS51221
Manufacturer'S Part No.
CS51221EDR16G

Common questions

Product FAQ

Quick answers for buyers reviewing CS51221EDR16G, stock, documentation, and sourcing steps.

What is CS51221EDR16G?

CS51221EDR16G is a PMIC - Voltage Regulators - DC DC Switching Controllers component from ON Semiconductor. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.

What package and description are listed for CS51221EDR16G?

CS51221EDR16G is listed with package reference 16SOIC. The current product description is IC REG CTRLR FWRD CONV 16SOIC, and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.

Is CS51221EDR16G available in stock?

This page currently shows 34784 units in stock and 21554 units available for CS51221EDR16G. Because electronic component availability can change quickly, submit an RFQ to confirm live stock, lead time, and final pricing.

Can I request a quote or sample for CS51221EDR16G?

Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for CS51221EDR16G by ON Semiconductor. The TrustCompo team can review price, availability, and documentation support.

Is a datasheet available for CS51221EDR16G?

Yes. This page links to the datasheet for CS51221EDR16G by ON Semiconductor, so engineers and buyers can review package, ratings, and application details before purchase.

How should buyers verify CS51221EDR16G before ordering?

Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for CS51221EDR16G before approving the order.

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