SC1104BISTR Semtech, SC1104BISTR Datasheet
SC1104BISTR
Specifications of SC1104BISTR
Related parts for SC1104BISTR
SC1104BISTR Summary of contents
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... MBRA130L R4 2.32k 8 R3 1.00k 200-1k 0.1-0. opt Si4884DY 1-5.1 1.5-6.8uH Q2 R7 1-5.1 Si4874DY D2 (opt) Figure 1 1 SC1104A/B Simple, Synchronous Current sensing 47/16V 10.0 47/16V 47/16V C10 C11 C12 C13 220/4V 220/4V 220/4V 220/4V www.semtech.com + Vin 5 to 12V _ + 3.3V C14-17 1.0 _ ...
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... Electrical Characteristics section is not implied. Exposure to Absolute Maximum rated conditions for extended periods of time may affect device reliability Electrical Characteristics Unless specified ± 0.6V ± 1V BST © 2006 Semtech Corp 3.3V OUT ± ± SC1104A ± 0.25V ± 0.6V 2.0V, T BST OUT www.semtech.com ° ° ° C ° C ° C ° µ ...
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... POWER MANAGEMENT Electrical Characteristics Unless specified ± 0.6V ± 1V BST © 2006 Semtech Corp. = 3.3V OUT < < µ < < µ < T < ° < T < ° ° < < < > SC1104A ± 0.25V ± 0.6V 2.0V, T BST OUT www.semtech.com = µ A µ ...
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... POWER MANAGEMENT Electrical Characteristics Unless specified ± 0.6V ± 1V BST Notes: (1) Guaranteed by design. (2) Not tested, by characterization. Block Diagram © 2006 Semtech Corp. = 3.3V ± 0.25V, V OUT < T < 8 ° Figure 2 Figure 3 4 SC1104A ± 0.6V 2.0V BST OUT ° C www.semtech.com ...
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... In place of “X” 300kHz, V (2) Only available in tape and reel packaging. A reel contains 2500 devices. (3) Lead free product. This product is fully WEEE and RoHS compliant yyww = Date Code (Example: 0012) xxxxxxxx = Semtech Lot No. (Example: E90101-1) 5 SC1104A ° 12V 600kHz 5V www.semtech.com ° ...
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... If Vout > 3.3V, the error amplifier will sink current and reduce the COMP voltage, so that duty cycle will decrease. © 2006 Semtech Corp. The circuit will be in steady state when Vout =3.3V , Vsense = 1V, Icomp = 0 . The COMP voltage and duty cycle depend on Vin. ...
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... The circuit has now reached its operating point fault occurs during the soft start, the cycle will begin again (drivers low, Vcomp decreasing down to 0.6V). © 2006 Semtech Corp. Closing the Loop In order to have a stable closed loop system with optimum transient response one should make sure that open-loop frequency response has an adequate Gain & ...
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... NET At the closed-loop crossover frequency f © 2006 Semtech Corp. attenuation due to the L resistor divider R Cn the PWM modulator and the gain of the transconductance error amplifier (Gm Shown below is a typical Bode plot of the open-loop frequency response of SC1104 based buck converter. µF 80.0 -50 ...
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... Temp, °C Trip Voltage vs. Temp 25% 20% 15% 10 -5% -10% -15% -20% -25% -40 - Temp, °C © 2006 Semtech Corp. 25% 20% 15% 10 -5% -10% -15% -20% -25 100 120 -40 10 -2% -4% -6% -8% -10 100 120 -40 9 SC1104A/B Switching Frequency vs. Temp ...
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... DL PHASE 4 DH BST 2.2 Evaluation Board Schematic - V C1 1500p U1 SC1104AISTR C2 R1 0.1 680 1 COMP/SS SENSE 2 GND VCC 3 DL PHASE 4 DH BST R3 2.2 R4 2.2 © 2006 Semtech Corp 1.0 C7 10.0 D1 MBRA130L MBRA130L(opt 0.1 L1 Si4410DY 0 3.9uH Q2 Si4410DY C5 6800p R6 2.2 = 12V 1 ...
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... POWER MANAGEMENT Evaluation PC Board © 2006 Semtech Corp. Top View Top Layer Bottom Layer 11 SC1104A/B www.semtech.com ...
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... POWER MANAGEMENT Typical Characteristics 100% 95% 90% 85% 80% 75% 70% 65% 60% 0 1.0% 0.8% 0.6% 0.4% 0.2% 0.0% -0.2% -0.4% -0.6% -0.8% -1.0% 0 © 2006 Semtech Corp Current Current SC1104A/B 12V = Vin 3.3V = Vout 12A = Iout www.semtech.com ...
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... POWER MANAGEMENT Typical Characteristics (Cont.) 100% 95% 90% 85% 80% 75% 70% 65% 60% 0 1.0% 0.8% 0.6% 0.4% 0.2% 0.0% -0.2% -0.4% -0.6% -0.8% -1.0% 0 © 2006 Semtech Corp Current Current SC1104A Vin 2V = Vout 12A = Iout www.semtech.com ...
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... REFERENCE JEDEC STD MS-012, VARIATION AA. 4. Minimum Land Pattern - SOIC - 8 X (C) NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. 2. REFERENCE IPC-SM-782A, RLP NO. 300A. Contact Information Phone: (805)498-2111 FAX (805)498-3804 © 2006 Semtech Corp. A DIM ...