isl8033 Intersil Corporation, isl8033 Datasheet
isl8033
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isl8033 Summary of contents
Page 1
... The ISL8033, ISL8033A is offered 4mmx4mm QFN package with 1mm maximum height. The complete 2 converter occupies less than 5.46cm ...
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... Typical Application Circuit INPUT 2.85V 2x22µF FIGURE 1. TYPICAL APPLICATION DIAGRAM - DUAL INDEPENDENT OUTPUTS TABLE 1. ISL8033 COMPONENT VALUE SELECTION V 0.8V OUT C1 2x22µF C2 (or C4) 2x22µF C3 (or C5) 12pF L1 (or L2) 1.0µH~2.2µH 1.0µH~2.2µH R2 (or R5 (or R6) 100k TABLE 2. ISL8033A COMPONENT VALUE SELECTION V 0 ...
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... 3pF SLO 0.5V 1.6k 0.864V + + V IN 0.736V ISL8033, ISL8033A 27pF 0.3pF 390k + ILLA 27pF 0.3pF 390k + ...
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... Synchronization. Negative edge trigger. Do not leave this pin floating. Do not tie this pin low (or to SGND). 13 EN1 Regulator Channel 1 enable pin. Enable the output, VOUT1, when driven to high. Shutdown the VOUT1 and discharge output capacitor when driven to low. Do not leave this pin floating. 4 ISL8033, ISL8033A ISL8033, ISL8033A (24 LD QFN) TOP VIEW ...
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... 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. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL8033, ISL8033A. For more information on MSL, please see Technical Brief TB363. ...
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... Trans-Resistance OVERCURRENT PROTECTION Dynamic Current Limit ON-time Dynamic Current Limit OFF-time Positive Peak Overcurrent Limit 6 ISL8033, ISL8033A Thermal Information (Reference to SGND) Thermal Resistance (Typical) 4x4 QFN Package (Notes Junction Temperature Range . . . . . . . . . . -55°C to +150°C Storage Temperature Range . . . . . . . . . . . -65°C to +150°C Ambient Temperature Range . . . . . . . . . . . -40° ...
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... O VIN = 6V 200mA O VIN = 2.85V 200mA O F ISL8033 S ISL8033A F ISL8033 (Note 6) SYNC Rising edge to rising edge timing SYNC = High (forced PWM mode LOW DIS Pulled Sinking 1mA, VFB = 0. VIN = 6V Percentage of nominal regulation voltage Percentage of nominal regulation voltage I Pulled ...
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... Typical Operating Performance ISL8033 Unless otherwise noted, operating conditions are 1.2V 1.8V OUT1 OUT2 OUT1 100 90 2.5V 1.8V OUT OUT 80 1. 0.0 0.5 1.0 1.5 I (A) OUT FIGURE 2. EFFICIENCY +25° 1.2 1.0 0.8 0 0.4 0.2 0 0.0 0.5 1.0 1.5 I (A) OUT FIGURE 4. POWER DISSIPATION 1.8V OUT 1.500 1.495 5V IN 1.490 1.485 1.480 1 ...
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... Typical Operating Performance ISL8033 Unless otherwise noted, operating conditions are 1.2V 1.8V OUT1 OUT2 OUT1 2.490 2.485 5V IN 2.480 2.475 2.470 2.465 2.460 0.0 0.5 1.0 1.5 I (A) OUT FIGURE 8. LOAD REGULATION +25°C A LX1 2V/DIV V RIPPLE 20mV/DIV OUT1 IL1 0.5A/DIV FIGURE 10. STEADY STATE OPERATION AT NO LOAD ...
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... Typical Operating Performance ISL8033 Unless otherwise noted, operating conditions are 1.2V 1.8V OUT1 OUT2 OUT1 V RIPPLE 20mV/DIV OUT1 V OUT2 FIGURE 14. STEADY STATE OPERATION WITH FULL LOADS AT BOTH CHANNELS V RIPPLE 50mV/DIV OUT2 IL2 2A/DIV FIGURE 16. LOAD TRANSIENT CHANNEL 2 (PWM) FIGURE 18. SOFT-START WITH NO LOAD CHANNEL 2 ...
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... Typical Operating Performance ISL8033 Unless otherwise noted, operating conditions are 1.2V 1.8V OUT1 OUT2 OUT1 FIGURE 20. SOFT-START AT FULL LOAD CHANNEL 2 FIGURE 22. SOFT-DISCHARGE SHUTDOWN CHANNEL 2 LX2 2V/DIV SYNCH 5V/DIV V RIPPLE 20mV/DIV OUT2 IL2 0.2A/DIV FIGURE 24. CHANNEL 2 STEADY STATE OPERATION AT NO LOAD WITH FREQUENCY = 6MHz ...
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... Typical Operating Performance ISL8033 Unless otherwise noted, operating conditions are 1.2V 1.8V OUT1 OUT2 OUT1 LX2 2V/DIV SYNCH 5V/DIV V RIPPLE 20mV/DIV OUT2 IL2 2A/DIV FIGURE 26. CHANNEL 2 STEADY STATE OPERATION AT FULL LOAD WITH FREQUENCY = 6MHz FIGURE 28. OUTPUT SHORT CIRCUIT RECOVERY CHANNEL 1 FIGURE 30. OUTPUT SHORT CIRCUIT RECOVERY CHANNEL 2 ...
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... Typical Operating Performance ISL8033A Unless otherwise noted, operating conditions are 1.2V 1.8V OUT1 OUT2 OUT1 100 90 80 1.2V OUT 1.5V OUT 0.0 0.5 1.0 1.5 OUTPUT LOAD (A) FIGURE 31. EFFICIENCY vs LOAD, 1MHz 3.3V CH1 +25°C V OUT1 FIGURE 33. STEADY STATE OPERATION AT NO LOAD CHANNEL 1 V OUT1 FIGURE 35. STEADY STATE OPERATION WITH FULL ...
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... OUT1 IL1 2A/DIV FIGURE 37. LOAD TRANSIENT CHANNEL 1 Theory of Operation The ISL8033 is a dual 3A step-down switching regulator optimized for battery-powered or mobile applications. The regulator operates at 1MHz fixed switching frequency under heavy load condition. The ISL8033A operates at 2.5MHz to allow small external inductor and capacitors to be used for minimal printed-circuit board (PCB) area. The two channels are 180° ...
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... Duty Cycle The ISL8033 features 100% duty cycle operation to maximize the battery life. When the battery voltage drops to a level that the ISL8033, ISL8033A can no longer maintain the regulation at the output, the regulator completely turns on the P-MOSFET. The maximum drop-out voltage under the 100% duty-cycle operation is the product of the load current and the ON-resistance of the P-MOSFET ...
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... The ceramic capacitor is recommended to be X5R or X7R. The recommended minimum output capacitor values for the ISL8033, ISL8033A are shown in Tables 1 and 2 on page 2. Output Voltage Selection The output voltage of the regulator can be programmed via an external resistor divider, which is used to scale the ...
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... L24.4x4D 24 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 2, 10/06 4.00 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW ( TYP ) ( TYPICAL RECOMMENDED LAND PATTERN 17 ISL8033, ISL8033A 24X ± BOTTOM VIEW ± 20X 24X 24X NOTES: 1 ...