ISL8022 Intersil, ISL8022 Datasheet
ISL8022
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ISL8022 Summary of contents
Page 1
... When shutdown, ISL8022 discharges the outputs capacitor. Other features include internal digital soft-start, enable for power sequence, overcurrent protection, and thermal shutdown. The ISL8022 is offered in a 4mmx3mm 12 Ld DFN package with 1mm maximum height. The complete converter 2 occupies less than 1.8cm area ...
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... R3 (or R6) 100k In Table 1, the minimum output capacitor value is given for different output voltage to make sure the whole converter system is stable. Output capacitance should increase to support faster load transient requirement. 2 ISL8022 ...
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... ISL8022 ...
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... 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. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL8022. For more information on MSL please see techbrief TB363. Pin Description PIN NUMBER ...
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... FB1, FB2 Bias Current Output Voltage Accuracy Line Regulation Soft-Start Ramp Time Cycle OVERCURRENT PROTECTION Dynamic Current limit ON-time Dynamic Current Limit OFF-time 5 ISL8022 Thermal Information Reference to GND) Thermal Resistance (Typical) + 0.3V 4x3 DFN Package (Notes Junction Temperature Range . . . . . . . . . . -55°C to +150°C Storage Temperature Range . . . . . . . . . . . -65° ...
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... Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. 7. The operational frequency per switching channel will be half of the SYNC frequency. 8. Limits established by characterization and are not production tested. 6 ISL8022 = -40°C to +85° +25° ...
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... FIGURE 4. EFFICIENCY vs LOAD, 2.25MHz, 3.3V 0.90 0.75 0.60 0.45 0. PWM IN 0.15 5V PFM IN 0.00 0.0 0.2 0.4 0.6 0.8 1.0 OUTPUT LOAD (A) FIGURE 6. POWER DISSIPATION vs LOAD, 2.25MHz, 1.8V, CHANNEL 2 7 ISL8022 (Unless otherwise noted) operating conditions are 1.2µ 10µ 22µ 100 1.2V OUT1 1.2 1.4 1.6 1.8 2.0 0.0 PWM FIGURE 3. EFFICIENCY vs LOAD, 2.25MHz 100 90 ...
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... V PFM IN 1.82 1. PFM IN 1.80 1.79 3.3V V PWM IN 1.78 5V PWM IN 1.77 0.0 0.2 0.4 0.6 0.8 1.0 OUTPUT LOAD (A) FIGURE 10. V REGULATION vs LOAD, 2.25MHz, OUT 1.8V, CHANNEL 2 FIGURE 12. OUTPUT VOLTAGE REGULATION ISL8022 (Unless otherwise noted) operating conditions are 1.2µ 10µ 22µ 2.53 2.52 2.51 2.50 3.3V V PFM IN 2.49 2.48 2.47 1.2 1.4 1.6 1.8 2.0 FIGURE 9. V 2.54 2.53 2.52 2.51 2.50 2.49 2.48 1.2 1.4 1.6 1.8 2.0 FIGURE 11. OUTPUT VOLTAGE REGULATION ...
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... V RIPPLE 20mV/DIV OUT1 IL1 1A/DIV FIGURE 17. STEADY STATE OPERATION AT FULL LOAD CHANNEL 1 9 ISL8022 (Unless otherwise noted) operating conditions are 1.2µ 10µ 22µ 200ns/DIV FIGURE 14. STEADY STATE OPERATION AT NO LOAD TB = 500ns/DIV FIGURE 16. STEADY STATE OPERATION AT NO LOAD TB = 200ns/DIV FIGURE 18 ...
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... V 1V/DIV OUT1 IL1 0.5A/DIV PG 5V/DIV FIGURE 23. SOFT-START WITH NO LOAD CHANNEL 1 (PWM) 10 ISL8022 (Unless otherwise noted) operating conditions are 1.2µ 10µ 22µ 200µs/DIV FIGURE 20. LOAD TRANSIENT CHANNEL 2 (PWM 1ms/DIV FIGURE 22. LOAD TRANSIENT CHANNEL 2 (PFM) EN2 2V/DIV ...
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... PG 5V/DIV FIGURE 27. SOFT-START AT FULL LOAD CHANNEL 1 EN1 2V/DIV V 1V/DIV OUT1 IL1 0.2A/DIV PG 5V/DIV FIGURE 29. SOFT-DISCHARGE SHUTDOWN CHANNEL 1 11 ISL8022 (Unless otherwise noted) operating conditions are 1.2µ 10µ 22µ EN2 2V/DIV V OUT2 IL2 0.5A/DIV PG 5V/DIV TB = 500µs/DIV FIGURE 26 ...
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... V 2V/DIV OUT1 FIGURE 35. VOUT1 HARD SHORT TO VIN NEGATIVE CURRENT WAVEFORMS AT HIGH LINE CHANNEL 1 12 ISL8022 (Unless otherwise noted) operating conditions are 1.2µ 10µ 22µ 100ns/DIV FIGURE 32. STEADY STATE OPERATION AT NO LOAD TB = 100ns/DIV FIGURE 34. STEADY STATE OPERATION AT FULL LOAD IL1 0 ...
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... IL1 2A/DIV PG 5V/DIV FIGURE 39. OUTPUT SHORT CIRCUIT CHANNEL 1 LX2 5V/DIV V 1V/DIV OUT2 IL2 2A/DIV PG 5V/DIV FIGURE 41. OUTPUT SHORT CIRCUIT CHANNEL 2 13 ISL8022 (Unless otherwise noted) operating conditions are 1.2µ 10µ 22µ 1V/DIV IL2 0.5A/DIV V 2V/DIV OUT2 LX2 2V/DIV V OUT2 TB = 10µ ...
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... FIGURE 43. PWM OPERATION WAVEFORMS SKIP Mode Pulling the SYNC pin HIGH (>1.5V) enable the converter into PFM mode at low load. The ISL8022 enters a pulse- skipping mode at light load to minimize the switching loss by reducing the switching frequency. Figure 44 illustrates the skip-mode operation. A zero-cross sensing circuit shown in block diagram monitors the N-MOSFET current for zero crossing ...
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... ON-resistance for the N-MOSFET is typical 90mΩ. 100% Duty Cycle The ISL8022 features 100% duty cycle operation to maximize the battery life. When the battery voltage drops to a level that the ISL8022 can no longer maintain www.DataSheet4U.com LOAD CURRENT FN7650.0 June 9, 2010 ...
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... ISL8022 uses internal compensation network and the output capacitor value is dependent on the output voltage. The ceramic capacitor is recommended to be X5R or X7R. The recommended minimum output capacitor values are shown in Table 1 for the ISL8022 on page 2. Output Voltage Selection The output voltage of the regulator can be programmed ...
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... Applications, Related Documentation and Related Parts, please see the respective device information page on intersil.com: To report errors or suggestions for this datasheet, please go to FITs are available from our website at 17 ISL8022 for a complete list of Intersil product families. ISL8022 www.intersil.com/askourstaff http://rel.intersil.com/reports/search.php www.DataSheet4U.com CHANGE FN7650.0 June 9, 2010 ...
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... No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see 18 ISL8022 L12.4x3 12 LEAD DUAL FLAT NO-LEAD PLASTIC PACKAGE 2X (COMPLIANT TO JEDEC MO-229-VGED-4 ISSUE C) 0 ...