ISL8500IRZ Intersil, ISL8500IRZ Datasheet
ISL8500IRZ
Specifications of ISL8500IRZ
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ISL8500IRZ Summary of contents
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... MARKING RANGE (°C) ISL8500IRZ 500Z -40 to +85 ISL8500IRZ-T* 500Z -40 to +85 *Please refer to TB347 for details on reel specifications. NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations ...
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Typical Application Schematic EN PG GND 2 ISL8500 R3 C3 301 100pF 10k 2.2nF 3.16k C1 10pF R2 C5 51.1k 0.1 μ F VIN PHASE ISL8500 BOOT VDD FIGURE 1. VIN RANGE FROM 5.5V TO 25V VOUT ...
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Functional Block Diagram VDD SOFT-START CONTROL 30µ VIN LDO VDD PG 3 ISL8500 VOLTAGE - + MONITOR EA 0.6V RAMP REFERENCE GENERATOR FAULT THERMAL MONITOR MONITOR OSCILLATOR +150°C OC MONITOR VDD POWER-ON RESET MONITOR EPAD GND VDD OC ...
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... Thermal Information Thermal Resistance QFN Package (Notes 1, 2 Ambient Temperature Range .-40°C to +85°C Junction Temperature Range .-40°C to +125°C Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp SYMBOL TEST CONDITIONS VIN VIN connected to VDD I Note 3 ...
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Electrical Specifications Unless Otherwise Noted, All Parameter Limits are Established Over the Recommended Operating Conditions and the Typical Specifications are Measured at the Following Conditions 5.5V to 25V, Unless Otherwise Noted. Typical Values are ...
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Pin Descriptions FB (Pin 1) and COMP (Pin 2) The standard buck regulator employs a single voltage control loop the negative input to the voltage loop error amplifier. COMP is the output of the error amplifier. The output ...
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Typical Performance Curves 100 1.5V OUT 1.2V OUT 3.3V OUT 30 20 0.0 0.5 1.0 OUTPUT LOAD (A) FIGURE 2. EFFICIENCY vs LOAD, 5V 100 12V OUT 90 5V OUT 1.5V ...
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Typical Performance Curves 1.814 1.813 25V IN 12V 1.812 IN 1.811 1.810 1.809 5V 1.808 IN 1.807 1.806 0.0 0.5 1.0 OUTPUT LOAD (A) FIGURE 8. V REGULATION vs LOAD, 1.8V OUT 3.330 3.328 25V IN 12V IN 3.326 3.324 ...
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Typical Performance Curves PHASE 10V/DIV IL 1A/DIV FIGURE 14. LOAD TRANSIENT (200µs/DIV) EN 5V/DIV IL 1A/DIV FIGURE 16. SOFT-START AT FULL LOAD (2ms/DIV) VOUT 1V/DIV IL 2A/DIV PG 5V/DIV FIGURE 18. OUTPUT SHORT CIRCUIT (5µs/DIV) 9 ISL8500 Unless otherwise noted, ...
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Detailed Description The ISL8500 combines a standard buck PWM controller with an integrated switching MOSFET. The buck controller drives an internal N-Channel MOSFET and requires an external diode to deliver load current up to 2A. A Schottky diode is recommended ...
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Output Voltage Selection The regulator output voltages can be programmed using external resistor dividers that scale the voltage feedback relative to the internal reference voltage. The scaled voltage is fed back to the inverting input of the error amplifier; refer ...
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These requirements are generally met with a mix of capacitors and careful layout. Embedded processor systems are capable of producing transient load rates above 1A/ns. High frequency capacitors initially supply the transient and slow the current load ...
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These capacitors must be capable of handling the surge-current at power-up. Some capacitor series available from reputable manufacturers are surge current tested. DRIVER OSC PWM COMPARATOR - ΔV + OSC ...
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A more detailed explanation of voltage mode control of a buck regulator can be found in TB417, entitled “Designing Stable Compensation Networks for Single Phase Voltage Mode Buck Regulators.” Layout Considerations Layout is very important in high frequency switching converter ...
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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 ...