RT8239B datasheet, PDF - EEWORLD Datasheet

RT8239B: DescriptionHigh Efficiency, Main Power Supply Controller for Notebook Computers, Active, 19V, 5.5V, 25V, 2V, 5.5V, Resistor; CategoryPower/power management BuckCont; File Size380KB，24 Pages; ManufacturerRichtek Technology Corporation; Websitehttps://www.richtek.com/

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RT8239B Overview

High Efficiency, Main Power Supply Controller for Notebook Computers, Active, 19V, 5.5V, 25V, 2V, 5.5V, Resistor

Parameter Name	Attribute value
Status	Active
Vs (typ)(V)	19
Vin (min)(V)	5.5
Vin (max)(V)	25
Vout (min)(V)	2
Vout (max)(V)	5.5
Preset Vout(V)
Output Adj. Method	Resis
Accuracy(+/- %)	1.2
Freq (typ)(kHz)	300
Freq (min)(kHz)	200
Freq (max)(kHz)	466
Iq (typ)(mA)	1
Features	Adjustable Current Limit;Adjustable Frequency;Built-in Bootstrap Switch;COT Control;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Enable Input;OVP;PSM;Power Good;SCP;UVP;Ultrasonic Mode Control
Package Type	WQFN3x3-20

	RT8239B	RT8239AZQW	RT8239CGQW	RT8239A	RT8239C
Description	High Efficiency, Main Power Supply Controller for Notebook Computers, Active, 19V, 5.5V, 25V, 2V, 5.5V, Resistor	IC CTRLR SMPS DUAL 20WQFN	IC CTRLR SMPS DUAL 20WQFN	High Efficiency, Main Power Supply Controller for Notebook Computers, Active, 19V, 5.5V, 25V, 2V, 5.5V, Resistor	High Efficiency, Main Power Supply Controller for Notebook Computers, Active, 19V, 5.5V, 25V, 2V, 5.5V, Resistor
Status	Active	-	-	Active	Active
Vs (typ)(V)	19	-	-	19	19
Vin (min)(V)	5.5	-	-	5.5	5.5
Vin (max)(V)	25	-	-	25	25
Vout (min)(V)	2	-	-	2	2
Vout (max)(V)	5.5	-	-	5.5	5.5
Output Adj. Method	Resis	-	-	Resis	Resis
Accuracy(+/- %)	1.2	-	-	1.2	1.2
Freq (typ)(kHz)	300	-	-	300	300
Freq (min)(kHz)	200	-	-	200	200
Freq (max)(kHz)	466	-	-	466	466
Iq (typ)(mA)	1	-	-	1	1
Features	Adjustable Current Limit;Adjustable Frequency;Built-in Bootstrap Switch;COT Control;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Enable Input;OVP;PSM;Power Good;SCP;UVP;Ultrasonic Mode Control	-	-	Adjustable Current Limit;Adjustable Frequency;Built-in Bootstrap Switch;COT Control;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Enable Input;OVP;PSM;Power Good;SCP;UVP;Ultrasonic Mode Control	Adjustable Current Limit;Adjustable Frequency;Built-in Bootstrap Switch;COT Control;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Enable Input;OVP;PSM;Power Good;SCP;UVP;Ultrasonic Mode Control
Package Type	WQFN3x3-20	-	-	WQFN3x3-20	WQFN3x3-20

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