Silergy

SY5231ABC

500kHz 1 SOT-23-6 Power Supply Controllers, Monitors

SOT-23-6RoHSActive

Advanced Design Specification for SY5231 Secondary Side Synchronous Rectification Controller

Manufacturer: Silergy
Manufacturer part #: SY5231ABC
Store part #: C21726214
Package / case: SOT-23-6
Category: Power Supply Controllers, Monitors
Packaging: Tape & Reel (TR)

Datasheet (PDF)

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3,000 in stock

#C21726214

Stock & price checked 5 days ago

Quantity	Unit price	Pack price
5+	₹19.72	₹98.60
50+	₹15.49	₹774.50
150+	₹13.67	₹2,050.50
500+	₹11.41	₹5,705.00
3,000+	₹10.40	₹31,200.00
6,000+	₹9.79	₹58,740.00

Quantity (min 5, multiples of 5)

5 × ₹19.72

₹98.60

excl. GST

₹116.35 incl. 18% GST

Need volume or a scheduled delivery? Request a quote

Dispatch in 7–10 working days
GST invoice with every order
Standard pack: 3,000 per reel

SY5231ABC

₹98.60 for 5 + GST

Specifications

Function: Multi-mode compatible control;Leading edge blanking;Light load efficient mode;Abnormal state protection
Frequency - Switching: 500kHz
Switch Tube (Built-In/External): Non Built-In
Quiescent Current: 195uA
Number of Channels: 1
Operating Temperature: -40℃~+105℃
Peak Output Current(Sink): 2A
Operating Voltage: 3.3V~21V
Peak Output Current(Source): 500mA
Turn-Off Delay: 10ns

Packaging & compliance

RoHS: RoHS
Lifecycle: Active
ECCN: EAR99
Packaging: Tape & Reel (TR)
Standard pack: 3,000 / Reel
Sold per: Piece
Minimum order: 5 (multiples of 5)
Unit weight: 0.041 g

Overview

SY5231 is a high-performance synchronous rectification controller which is suitable for CCM, DCM and QR mode flyback converter. It can drive standard and logic-level Nchannel MOSFET for secondary-side synchronous rectification. SY5231 adopts DSEN voltage falling slope rate detecting technology to avoid SR MOSFET false turn on by parasitic ring under DCM or QR mode. SY5231 adopts DSEN high voltage blanking time detective to enhance system ESD performance, it can prevent external noise false turn on SR MOSFET by making fast VDSEN falling slope rate. SY5231 features extremely short turn off delay time under CCM operating mode. Meanwhile, it uses DSEN voltage regulation technology to fully utilize conducting time of SR MOSFET for high efficiency under DCM or QR mode. Under light load condition, SY5231 will enter power save mode to improve light load efficiency. The SY5231 is available in a SOT23-6 package.

Applications

AC/DC Adapters
USB Type-C and Power Delivery AC Adapters
Server and Telecom Power Supply
Auxiliary Power Supplies

Key features

Suitable for CCM, DCM and QR Mode Flyback Converter
DSEN Pin Sensing up to 200V
DSEN Falling Slope Rate Detecting to Avoid False Turn On of SR MOSFET by Parasitic Ring
DSEN High Voltage Blanking Time detecting to enhance system ESD performance
Dual Power Supply Channel for 3.3V to 21V Output Systems
Maximum Allowed Switching Frequency Up to 500kHz
10 ns Typical Turnoff Propagation Delay
2A Sink, 0.5A Source Gate Driver Capability
Compact Package: SOT23-6

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