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EL7556D

Intersil Corporation
Part Number EL7556D
Manufacturer Intersil Corporation
Description Integrated Adjustable 6 Amp Synchronous Switcher
Published Jul 10, 2007
Detailed Description ® FO R DED 566 N E L7 OM M S Data EE ESheet RE C T O N D N EW ESI G NS EL7556D August 1, 2005 FN7339.1 Integrated ...
Datasheet PDF File EL7556D PDF File

EL7556D
EL7556D

Overview
® FO R DED 566 N E L7 OM M S Data EE ESheet RE C T O N D N EW ESI G NS EL7556D August 1, 2005 FN7339.
1 Integrated Adjustable 6 Amp Synchronous Switcher The EL7556D is an adjustable synchronous DC:DC switching regulator optimized for a 5V input and 1.
0V-3.
8V output.
By combining integrated NMOS power FETS with a fused-lead package, the EL7556D can supply up to 6A continuous output current without the use of external power devices or discrete heat sinks, thereby minimizing design effort and overall system cost.
On-chip resistorless current sensing is used to achieve stable, highly efficient, current-mode control.
The EL7556D also incorporates the VCC2DET function to directly interface with the Intel P54 and P55 microprocessors.
Depending on the state of VCC2DET, the output voltage is internally preset to 3.
5V or a user-adjustable voltage using two external resistors.
In both internal and external feedback modes the active-high PWRGD output indicates when the regulator output is within ±10% of the programmed voltage.
An onboard sensor monitors die temperature (OT) for overtemperature conditions and can be connected directly to OUTEN to provide automatic thermal shutdown.
Adjustable oscillator frequency and slope compensation allow added www.
DataSheet4U.
com flexibility in overall system design.
The EL7556D is available in a 28-pin SO package and is specified for operation over the full -40°C to +85°C temperature range.
Features • Improved temperature and voltage ranges • 6A continuous load current • Precision internal 1% reference • 1.
0V to 3.
8V output voltage • Internal power MOSFETs • >90% efficiency • Synchronous switching • Adjustable slope compensation • Over-temperature indicator • Pulse-by-pulse current limiting • Operates up to 1MHz • 1.
5% typical output accuracy • Adjustable oscillator with sync • Remote enable/disable • Intel P54- and P55-compatible • VCC2DET interface • Internal soft-start • Pb-free plus anneal available (RoHS compliant) Ordering Info...


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