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FSQ500L - Fairchild
Manufacturer:
Fairchild
ManyChip's Part#:
MC62046261
Category:
AC to DC Converter, AC/DC Power Module
Package:
TO-261-4
Datasheet:
Datasheet 3D Model
Description:
FAIRCHILD SEMICONDUCTOR FSQ500L AC-DC Off-Line Switcher IC, Green Mode, Flyback, 85VAC - 265VAC, 2.5W, SOT-223-4
Stock Locations:
Availability:
273 pcs In Stock
MOQ:
1 pcs
Unit Price:
$ 0.65

Updated at 26/10/2025 10:30:15(UTC+8)

Certifications

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Description

The FSQ500L is an Integrated Power Switch Pulse Width Modulator with 130kHz frequency and no bias winding for 2.5W offline fly-back converters. It is specially designed for a replacement of linear power supplies. This device combines current-mode Pulse Width Modulator (PWM) with a sense-FET. The integrated PWM controller features a fixed oscillator, under voltage lockout (UVLO) protection, overload protection (OLP), leading-edge blanking (LEB), an optimized gate turn-ON/OFF driver, thermal shutdown (TSD) protection with hysteresis and temperature-compensated precision-current sources for loop compensation. When compared to a linear power supply, the FSQ500L device reduces total size and weight, while increasing efficiency, productivity and system reliability. This device provides a basic platform for fly-back converters.
Internal start-up switch
Soft-start time tuned by external capacitor
Pulse-by-pulse current limit
Auto-restart mode
No need for auxiliary bias winding
130kHz Precision fixed operating frequency

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FSQ500L Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	4 Pin
Case/Package	TO-261-4
Power Rating	2.5 W
Number of Outputs	1 Output
Input Voltage (DC)	10.0 V
Output Current	0.245 A
Breakdown Voltage	700 V
Supply Current	0.76 mA
Number of Positions	4 Position
Power Dissipation	780 mW
Switching Frequency	130 kHz
Duty Cycle	60 %
Input Voltage (AC Max)	265 v
Input Voltage (AC Min)	85 v
Output Current (Min)	0.245 A
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	780 mW
Input Voltage	10 V
	Show
Size-Height	1.7 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Cut Tape (CT)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15

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