ISL6232CAZA-T Intersil, ISL6232CAZA-T Datasheet
ISL6232CAZA-T
Specifications of ISL6232CAZA-T
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ISL6232CAZA-T Summary of contents
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... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2009. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISL6232 ...
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... NUMBER (Note) ISL6232CAZA ISL 6232CAZ ISL6232CAZA-T* ISL 6232CAZ *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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... Lead QSOP Package (Note Junction Temperature Range .-55°C to +150°C Operating Temperature Range . . . . . . . . . . . . . . . -10°C to +100°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Pb-Free Reflow Profile .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = C = 4.7µ -10°C to +100°C (Note 2). Parameters with MIN and/or MAX limits are 100% LDO5 ...
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Electrical Specifications VIN = 12V, SHDN# = EN3 = EN5 = VCC, SKIP# = FB3 = FB5 = 0V LDO3 tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. (Continued) PARAMETER ...
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Electrical Specifications VIN = 12V, SHDN# = EN3 = EN5 = VCC, SKIP# = FB3 = FB5 = 0V LDO3 tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. (Continued) PARAMETER ...
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Typical Operating Performance 100 90 80 7V-SKIP 70 60 12V-SKIP 50 25V-SKIP 0.001 0.010 0.100 3.3V OUTPUT LOAD (A) FIGURE 1. EFFICIENCY OF 3.3V OUTOUT vs LOAD (7V, 12V, 25V-PWM, SKIP) 350 300 250 200 ...
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Typical Operating Performance 100 90 12V-ULTRA SKIP 80 70 12V-SKIP 12V-PWM 10 0 0.001 0.010 0.100 3.3V OUTPUT LOAD (A) FIGURE 7. OUTPUT RIPPLE OF 3.3V vs LOAD (12V-PWM, SKIP, ULTRA SKIP) 100 100 90 ...
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Typical Operating Performance 5.20 12V-PWM 5.15 5.10 5.05 5.00 0.001 0.010 0.100 5V OUTPUT LOAD (A) FIGURE 13. OUTPUT VOLTAGE REGULATION LOAD (12V-PWM, SKIP, ULTRA SKIP ...
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Typical Operating Performance 3.5 3.4 EN3 = 0 3.3 3.2 3.1 EN3 = V 3.0 2 LDO3 OUTPUT CURRENT (mA) FIGURE 19. LDO3 REGULATION OUTPUT VOLTAGE vs OUTPUT CURRENT 2.00 1.99 1.98 1.97 ...
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Typical Operating Performance IL3 (2A/DIV) IL5 (5A/DIV) V OUT3 (2V/DIV) V OUT5 (5V/DIV) FIGURE 25. SOFT-START WAVEFORMS (100mV/DIV) FIGURE 27. 3.3V PWM-MODE LOAD TRANSIENT RESPONSE Functional Pin Descriptions BOOT3 It powers the upper MOSFET driver for OUT3. Connect a 0.1µF ...
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PGOOD Open drain output. Active high after soft-start cycle delay when both outputs are above 90% of the regulated voltage; Pull low immediately when either output is below 90% of the regulated output. GND Analog ground. VIN This pin is ...
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Typical Operating Performance Typical Application Circuits The typical application circuits shown in Figures 28 and Figure 29 generate 5V/5A and 3.3V/5A for system power supplies in a notebook computer. VIN: 5.5V TO 25V C10 C10 10µ IRF7807V IRF7807V ...
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VIN: 5.5V TO 22V C10 C10 10µ IRF7807V IRF7807V OUT3 OUT3 L2:4.7µH RDC2:12mΩ Rdc218mW L2: 4.7ÿH 3.3V/5A 3.3V/5A Ω C15: 0.47µF R9: 1.0k C11 C11 Q4 Q4 220 220µF IRF7811AV IRF7811AV 12mΩ 4.0V R4: 2.0kΩ FIGURE 29. ...
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BOOT5 UGATE5 PHASE5 LGATE5 COMP5 CS5 FB5 DECODER 6pF OUT5 LDO5 VIN SHDN# SHUTDOWN STANDBY EN3 POWER-UP EN5 SQUENCE Each buck controller includes a feedback resistor divider network, a multiplexer for programmable mode, a trans- conductance error amplifier, a PWM ...
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SOFT- START 0.2V 0.2V OUT PGOOD 20ms BLANKING FIGURE 31. SYNCHRONOUS BUCK PWM CONTROLLER BLOCK DIAGRAM drivers. The low side drivers are directly powered from LDO5 and the high side drivers ...
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PWM comparator. During the off cycle, the external high side MOSFET turns off and the external low side MOSFET turns on. The inductor releases the stored energy as its current ramps down while ...
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BOOT pin can be added to increase the turn-on time of the high side MOSFETs at the cost of efficiency. Dead-time control circuitry is also implemented ...
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In shutdown or standby mode, the soft-start output is reset to zero. Fault Protection Undervoltage Protection When the output undervoltage is detected at below 75% (typ) of the regulation output for 20ms blanking ...
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TABLE 3. SUMMARY FOR VARIOUS OPERATION MODES MODE CONDITION Shutdown SHDN# = Low. All circuitry off. Standby SHDN# = High. LDO5, LDO3, and 2V EN3 = EN5 = Low. reference active. LGATE stays high. Soft-Start LDO5>UVLO EN3 Output voltage ramps ...
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Equation 8 gives the approximate response time interval for application and removal of a step transient load STEP STEP ≈ , ≈ t --------------------------------- - T --------------------- - rise fall V – OUT OUT Where ...
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Input Capacitor Selection The input capacitors must meet the input ripple current (I ) requirement imposed by the switching current. The RMS ISL6232 dual switching regulators operate at the same switching frequency with out-of-phase. This interleaves the current pulses drawn ...
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Loop Compensation Design ISL6232 uses constant frequency peak current mode control architecture to achieve fast loop transient response. An accurate current sensing resistor in series with the output inductor, or DCR of the output inductor, is used for peak current ...
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COMP V COMP GM V REF V REF + + R1 C1 FIGURE 33. TYPE II COMPENSATOR Figure 33 shows the type II compensator and its transfer function is ...
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The power requirements of the auxiliary supply must be considered in the design of the main output. The flyback transformer must be designed to deliver the required current in both the primary and the secondary outputs with the proper turns ...
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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 ...