Intersil EL7556B
The EL7556B 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 EL7556B 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. The EL7556B also incorporates the VCC2DET function to directly interface with the Intel P54 and P55 microprocessors.| Part No. | EL7556B |
|---|---|
| Datasheet | EL7556B Download |
| Manufacturer |  Intersil |
| Description | Integrated Adjustable 6 Amp Synchronous Switcher |
| Buy | Stock & Price |
FEATURES
● EL7556/EL7556A Pin-compatible● 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
APPLICATIONS
● PC motherboards● Local high power CPU supplies
● 5V to 1.0V DC:DC conversion
● Portable electronics/instruments Pinout EL7556B (28-PIN SO) TOP VIEW R4 R3 100Ω 150Ω VIN D3
● P54 and P55 regulators
● GTL + Bus power supply 1 C4 0.1µF 2 C7 39pF 3 C8 R5 5 5.1Ω 6 7 C9 C12 1µF C3 1µF 8 9 10 11 12 Connect to VSSP for external feedback 13 14 220pF 4 FB1 CREF CSLOPE COSC VDD VIN VSSP VIN VSSP VSSP VSSP VSSP FB2 28 CP C2V VSS 27 R1 26 20Ω 25 R6 VHI 24 C6 LX LX LX LX...
