Product Summary
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.
Parametrics
FAN5235 absolute maximum ratings: (1)VIN: -0.3 to 27 V; (2)SW, ISEN Pins,SDWN Pin: -0.3 to 27 V; (3)CPUMP, HSD Pins: -0.3 to 33 V; (4)SDN, VFB, V_always pins: -0.3 to 6.5 V; (5)CPUMP to SW pins, and all other pins: -0.3 to 6.5 V.
Features
FAN5235 features: (1)Synchronous rectification; (2)±1% precision internal reference; (3)>90% efficiency; (4)Input and output voltage feedback; (5)5.4V to 24V input voltage range; (6)Internally set 300kHz 5% oscillator; (7)5V and 3.3V Main outputs switch out of phase; (8)5V-ALWAYS and 3.3V-ALWAYS outputs; (9)Adjustable boost converter for 12V; (10)Boost converter slaved to 5V Main; (11)Input UVLO; (12)Outputs OVP of Buck Converters; (13)Precision current limit option for 5V, 3.3V Main; (14)Power Good Voltage Monitor.
Diagrams
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![]() FAN5235MTC |
![]() Fairchild Semiconductor |
![]() DC/DC Switching Controllers Regulator System Electronics |
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![]() FAN5235QSC |
![]() Fairchild Semiconductor |
![]() DC/DC Switching Controllers Regulator System Electronics |
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![]() Negotiable |
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![]() |
![]() FAN5235MTCX |
![]() Fairchild Semiconductor |
![]() DC/DC Switching Controllers Regulator System Electronics |
![]() Data Sheet |
![]() Negotiable |
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![]() |
![]() FAN5235QSC_Q |
![]() Fairchild Semiconductor |
![]() DC/DC Switching Controllers Regulator System Electronics |
![]() Data Sheet |
![]() Negotiable |
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![]() |
![]() FAN5235MTC_Q |
![]() Fairchild Semiconductor |
![]() DC/DC Switching Controllers Regulator System Electronics |
![]() Data Sheet |
![]() Negotiable |
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![]() |
![]() FAN5235QSCX |
![]() Fairchild Semiconductor |
![]() DC/DC Switching Controllers Regulator System Electronics |
![]() Data Sheet |
![]() Negotiable |
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