ISL6548ACRZA Intersil, ISL6548ACRZA Datasheet
ISL6548ACRZA
Specifications of ISL6548ACRZA
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ISL6548ACRZA Summary of contents
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... All other trademarks mentioned are the property of their respective owners. ISL6548A FN9189.2 /2 Divider Reference for DDR V DDQ ± 2% Over Temperature Switching Regulator DDQ | Intersil (and design registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2004, 2006. All Rights Reserved DDQ TT TT ...
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... NUMBER MARKING (°C) ISL6548ACRZA ISL6548ACRZ (Note) ISL6548ACRZA-T ISL6548ACRZ (Note) NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020 ...
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Block Diagram 180° PHASE PWM4 SHIFT COMP4 EA4 FB4 P12V EA2 DRIVE2_U FB2 DRIVE2_L P12V EA3 DRIVE3 FB3 S3# S5# 5VSBY P12V FB EA1 POR EA1 ACTIVE IN S3 MONITOR AND CONTROL SOFT-START & ENABLE A SOFT-START & ENABLE B ...
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Simplified Power System Diagram 3V3ATX SLP_S3 SLP_S5 Q3 V GMCH + TT_GMCH/CPU + Q6 Typical Application 3VDUAL ATX3V3 SLP_S5 SLP_S3 Q3 V GMCH TT_GMCH/CPU ISL6548A 12V 5VSBY ...
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Absolute Maximum Ratings 5VSBY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V ...
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Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted. Refer to Block and Simplified Power System Diagrams and Typical Application Schematics (Continued) PARAMETER PWM CONTROLLER GATE DRIVERS UGATE and LGATE Source UGATE and LGATE Sink VTT REGULATOR Upper Divider Impedance Lower ...
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... PWM4 (Pin 19) This pin provides the PWM output for the GMCH core switching regulator. Connect this pin to the PWM input of an Intersil MOSFET driver. FB4 (Pin 18) and COMP4 (Pin 17) The GMCH core switching regulator employs a single voltage control loop. FB4 is the negative input to the voltage loop error amplifier ...
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DRIVE2_U (Pin 10) This pin provides the gate voltage for the V linear regulator upper pass transistor. Connect this pin to the gate terminal of an external N-Channel MOSFET transistor. DRIVE2_L (Pin 13) This pin provides the gate voltage for ...
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SLP_S3# SLP_S5# 12V POR 12V 0V V DDQ_DDR 0V V GMCH 0V V TT_GMCH/CPU 0V V ICH7 0V V DDQ_DDR V TT_DDR 0V VIDPGD (3 SOFT-START CYCLES Soft-Start Rise Time Dependent ...
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S3 sleep state. When the ISL6548A enables the V or enters S0 state from a sleep state, this short is released and the internal divide down resistors which set the V voltage ...
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An internal 20µA (typical) current sink develops a voltage across R that is referenced to the OCSET converter input voltage. When the voltage across the upper MOSFET (also referenced to the converter input voltage) exceeds the ...
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ATX P12V C BP GNDP 5VDUAL 5VSBY 5VSBY C BP ISL6548A UGATE Q 1 PHASE LGATE Q 2 COMP VDDQ(2) VTT( ...
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The modulator transfer function is the small-signal transfer function This function is dominated OUT E/A Gain and the output filter (L and break frequency at F and a zero at ...
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Component Selection Guidelines Output Capacitor Selection - PWM Buck Converter An output capacitor is required to filter the inductor current and supply the load transient current. The filtering requirements are a function of the switching frequency and the ripple current. ...
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For a through hole design, several electrolytic capacitors may be needed. For surface mount designs, solid tantalum capacitors can be used, but caution must be exercised with regard to the capacitor surge current rating. These capacitors must be capable of ...
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... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...