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FAN5234QSCX_32, FAN5234QSCX_NL, FAN5235

Table of contents:
Info of FAN5234QSCX_32
Info of FAN5234QSCX_NL
Info of FAN5235

FAN5234QSCX_32, FAN5234QSCX_NL, FAN5235 Selling Leads, Datasheet

MFG:FSC Package Cooled:SOP D/C:2009+

FAN5234QSCX_32, FAN5234QSCX_NL, FAN5235 Picture

FAN5234QSCX_32, FAN5234QSCX_NL, FAN5235 Datasheet download

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Part Number: FAN5234QSCX_32

MFG: FSC

Package Cooled: SOP

D/C: 2009+

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FAN5235 General Description

The FAN5235 is a high efﬁciency and high precision DC/DC controller for notebook converters. Utilization of both input and output voltage feedback in a current-mode control allows for fast and stable loop response over a wide range of input and output voltage variations. The two main regulators switch out of phase to minimize input ripple current.
Current sense based on MOSFET Rdson gives maximum efﬁciency, while also permitting use of a sense resistor for high accuracy. An externally adjustable boost converter can be set to generate 12V.
The FAN5235 is available in a 24-pin QSOP package, and in a 24-pin TSSOP package.

FAN5235 Maximum Ratings

</table

Parameter	Conditions	Min.	Typ.	Max.	Units
V_IN		-0.3		27	V
SW, ISEN Pins,SDWN Pin		-0.3		27	V
CPUMP, HSD Pins		-0.3		33	V
SDN, VFB, V_always pins		-0.3		6.5	V
CPUMP to SW pins, and all other pins		-0.3		6.5	V
The sum of the load currents on pins 2 and 6 must not exceed 60mA total

FAN5235 Features

•Synchronous rectiﬁcation
•±1% precision internal reference
•>90% efﬁciency
•Input and output voltage feedback
•5.4V to 24V input voltage range
•Internally set 300kHz ±15% oscillator
•5V and 3.3V Main outputs switch out of phase
•5V-ALWAYS and 3.3V-ALWAYS outputs
•Adjustable boost converter for 12V
•Boost converter slaved to 5V Main
•Input UVLO
•Outputs OVP of Buck Converters
•Precision current limit option for 5V, 3.3V Main
•Power Good Voltage Monitor

FAN5235 Typical Application

•Notebook PCs and PDAs
•Hand-held portable instruments

FAN5235 Connection Diagram

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