ISL6269BCRZ Intersil, ISL6269BCRZ Datasheet
ISL6269BCRZ
Specifications of ISL6269BCRZ
Related parts for ISL6269BCRZ
ISL6269BCRZ Summary of contents
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... Applications • PCI express graphical processing unit • Auxiliary power rail • VRM • Network adapter Ordering Information PART NUMBER (Note) ISL6269BCRZ* PVCC 12 ISL6269BIRZ* LG *Add “-T” suffix for tape and reel. 11 NOTE: Intersil Pb-free plus anneal products employ special Pb-free ...
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Block Diagram VIN GND PACKAGE BOTTOM VCC V REF EN − OVP + − UVP + + EA EA − FB COMP − ISEN OCP 30Ω PGOOD PWM FREQUENCY CONTROL + − + ...
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Typical Application R PGOOD 5V R VCC C C PVCC VCC R COMP C COMP1 C COMP2 R BOTTOM 3 ISL6269B ISL6269B PGOOD VIN PVCC UG VCC BOOT GND PHASE FCCM ISEN EN LG COMP PGND FB FSET VO R ...
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... Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp Recommended Operating Conditions Ambient Temperature Range ISL6269BCRZ . . . . . . . . . . . . . . . . . . . . . . . . . . .-10°C to +100°C ISL6269BIRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +100°C Supply Voltage (VIN to GND 25V VCC to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5V ±5% PVCC to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5V ±5% = -40°C to +100°C, unless otherwise stated. ...
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Electrical Specifications These specifications apply for T All typical specifications T PARAMETER ERROR AMPLIFIER FB Input Bias Current COMP Source Current COMP Sink Current COMP High Clamp Voltage COMP Low Clamp Voltage POWER GOOD PGOOD Pull-down Impedance PGOOD Leakage Current ...
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Electrical Specifications These specifications apply for T All typical specifications T PARAMETER PROTECTION ISEN OCP Threshold ISEN Short-Circuit Threshold UVP Threshold OVP Rising Threshold OVP Falling Threshold OTP Rising Threshold (Note 3) OTP Hysteresis (Note 3) NOTE: 3. Guaranteed by ...
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... Theory of Operation Modulator The ISL6269B is a hybrid of fixed frequency PWM control, and variable frequency hysteretic control. Intersil’s R technology can simultaneously affect the PWM switching frequency and PWM duty cycle in response to input voltage and output load transients. The term “Ripple” in the name “ ...
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VOUT VCC and PVCC EN PGOOD 2.75ms FIGURE 4. SOFT-START SEQUENCE The PGOOD pin indicates when the converter is capable of supplying regulated voltage. The PGOOD pin is an undefined impedance if has not reached the rising V VCC ...
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PWM frequency to a level beyond human hearing when the output load current becomes low enough. With FCCM pulled low, the converter will automatically enter DEM after the PHASE pin has detected positive voltage, while the LG gate-driver pin ...
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... GATE DRIVERS (EQ. 7) (EQ. 8) FIGURE 6. COMPENSATION REFERENCE CIRCUIT Your local Intersil representative can provide a PC-based tool that can be used to calculate compensation network component values and help simulate the loop frequency response. The compensation network consists of the internal should be checked error amplifier of the ISL6269B and the external components ...
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... It is assumed that the reader is familiar with many of the basic skills and techniques referenced below. In addition to this guide, Intersil provides complete reference designs that include schematics, bills of materials, and example board layouts. Selecting the LC Output Filter The duty cycle of an ideal buck converter is a function of the input and the output voltage ...
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MOSFET Selection and Considerations Typically, a MOSFET cannot tolerate even brief excursions beyond their maximum drain to source voltage rating. The MOSFETs used in the power stage of the converter should have a maximum V rating that exceeds the sum ...
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FCCM (Pin 3), EN (Pin 4), and PGOOD (Pin 16) These are logic inputs that are referenced to the GND pin. Treat as a typical logic signal. COMP (Pin 5), FB (Pin 6), and VO (Pin 8) For best results, ...
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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 ...