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FR8018

Fiti
Part Number FR8018
Manufacturer Fiti
Description 500KHz Synchronous Step-Down DC/DC Converter
Published Jan 21, 2015
Detailed Description fitipower integrated technology lnc. FR8018 23V, 4A, 500KHz Synchronous Step-Dow85nT DC/DC Converter Description The...
Datasheet PDF File FR8018 PDF File

FR8018
FR8018

Overview
fitipower integrated technology lnc.
FR8018 23V, 4A, 500KHz Synchronous Step-Dow85nT DC/DC Converter Description The FR8018 is a synchronous step-down DC/DC converter that provides wide 4.
5V to 23V input voltage range and 4A continuous load current capability.
At light load condition, the FR8018 can operate at PSM mode to support high efficiency and reduce power loss.
The FR8018 fault protection includes cycle-by-cycle current limit, UVLO and thermal shutdown.
Besides, adjustable soft-start or internal soft-start function prevents inrush current at turn-on.
This device uses current mode control scheme which provides fast transient response.
Internal compensation function reduces external compensator components and simplifies the design process.
In shutdown mode, the supply current is about 1μA.
The FR8018 is offered in SOP-8 (Exposed Pad) package and provides good thermal conductance.
Features  Low RDS(ON) Integrated Power MOSFET  Internal Compensation Function  Wide Input Voltage Range: 4.
5V to 23V  Adjustable Output Voltage Down to 0.
765V  4A Output Current  Fixed 500kHz Switching Frequency  External Programmable Soft-Start or Internal 1ms Soft-Start  PSM (High Efficiency at Light Load)  Cycle-by-Cycle Current Limit  Over-Temperature Protection with Auto Recovery  Under Voltage Lockout  <1μA Shutdown Current  Hiccup Short Circuit Protection  FB pin Floating Protection  SOP-8 Exposed Pad Package  RoHS Compliant Applications  LCD Display, TV  STB (Set-Top-Box)  Distributed Power System  Networking, XDSL Modem Pin Assignments SP Package (SOP-8 Exposed Pad) BST VIN LX GND 18 297 3 GND 6 45 SS SHDN NC FB Ordering Information FR8018□□□ TR: Tape/Reel C: Green Package Type SP: SOP-8 (Exposed Pad) Figure 1.
Pin Assignments of FR8018 FR8018-Preliminary 0.
1-SEP-2013 1 fitipower integrated technology lnc.
Typical Application Circuit VIN 4.
5V to 23V C1 10μF/35V CERAMIC C5 10μF/35V CERAMIC R3 100kΩ C4 0.
1μF 7 SHDN 2 VIN 1 BS...


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