SC2463TSTRT Semtech, SC2463TSTRT Datasheet
SC2463TSTRT
Specifications of SC2463TSTRT
Related parts for SC2463TSTRT
SC2463TSTRT Summary of contents
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... BST2 18 OSC GD2H PH2 20 POK GD2L 13 FB2 C11 R8 12 BD4 EO2 SC2463 C12 26 BST1 25 C13 FB4 GD1H 24 PH1 23 BD3 GD1L 2 FB1 3 FB3 EO1 C19 C20 R16 R17 1 SC2463 Switching Regulator +3. (as low as 0.5V +1. (as low as 0.5V) C15 R12 R13 R15 www.semtech.com ...
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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 ° Note: ( inch 1 oz copper ground plane. Electrical Characteristics Unless specified 12V, PVCC = AVCC = 5V 600KHz, SS/SHDN = 5V, SYNC = 0V 2007 Semtech Corp > > SC2463 < T < < T < < T < -40°C to 105° www.semtech.com ° C ° C ° C ° ° ° C ° µ ...
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... POWER MANAGEMENT Electrical Characteristics (Cont.) Unless specified 12V, PVCC = AVCC = 5V 600KHz, SS/SHDN = 5V, SYNC = 0V 2007 Semtech Corp ° SC2463 = T = -40°C to 105° www.semtech.com µ ...
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... POWER MANAGEMENT Electrical Characteristics (Cont.) Unless specified 12V, PVCC = AVCC = 5V 600KHz, SS/SHDN = 5V, SYNC = 0V & & & & 2007 Semtech Corp ° SC2463 = T = -40°C to 105° www.semtech.com ° µ µ µ A ...
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... POWER MANAGEMENT Electrical Characteristics (Cont.) Unless specified 12V, PVCC = AVCC = 5V 600KHz, SS/SHDN = 5V, SYNC = 0V Notes: (1) Guaranteed by design. (2) This device is ESD sensitive. Use of standard ESD handling precautions is required. 2007 Semtech Corp SC2463 = T = -40°C to 105° www.semtech.com ° C ° C ...
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... POWER MANAGEMENT Pin Configuration Top View (28 Pin TSSOP) Marking Information TOP SC2463 TS yyww xxxxxx nnnn = Part Number (Example: 1406) yyww = Date Code (Example: 0012) xxxxx = Semtech Lot No. (Example: P94A01) 2007 Semtech Corp. Ordering Information Notes: (1) Only available in tape and reel packaging. A reel contains 2500 devices ...
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... POWER MANAGEMENT Pin Descriptions 2007 Semtech Corp SC2463 www.semtech.com ...
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... POWER MANAGEMENT Pin Descriptions (Cont 2007 Semtech Corp ± SC2463 www.semtech.com ± ...
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... POWER MANAGEMENT Block Diagram 2007 Semtech Corp. 9 SC2463 SS/SHDN www.semtech.com ...
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... If the voltage on these inputs goes above 0.55V or below 0.45V then the POK pin is pulled low. The POK pin is held low until the end of the start-up sequence. 2007 Semtech Corp. Frequency Setting and Synchronization Frequency Setting and Synchronization Frequency Setting and Synchronization ...
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... MOSFETs 5) current sensing and limiting circuit 6) voltage sensing circuit 7) loop compensation network 2007 Semtech Corp. Operating Frequency (f Operating Frequency (f Operating Frequency (f Operating Frequency (f Operating Frequency (f The switching frequency in the SC2463 is user- programmable. The advantages of using constant frequency operation are simple passive component selection and ease of feedback compensation ...
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... The inductance varies with temperature and DC current good engineering practice to re-evaluate the resultant current ripple at the rated DC output current. 2007 Semtech Corp. c) Current rating: The saturation current of the inductor should be at least 1.5 times of the peak inductor current under all conditions. ...
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... Because the values of capacitance and ESR are usually different in ceramic and aluminum capacitors, the following remarks are made to clarify some practical issues. 2007 Semtech Corp. Remark 1: High frequency ceramic capacitors may not carry most of the ripple current. It also depends on the . I capacitor value ...
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... Figure 4. Figure 4. Typical waveforms at converter input 2007 Semtech Corp. It can be seen that the current in the input capacitor pulses with high di/dt. Capacitors with low ESL should be used also important to place the input capacitor close to the MOSFET’ ...
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... It may be difficult to find MOSFETs with both low C and low R . Usually a trade-off between R g ds(on C has to be made. g 2007 Semtech Corp. MOSFET selection also depends on applications. In many applications, either switching loss or conduction loss dominates for a particular MOSFET. For synchronous buck converters with high input to output voltage ratios, the ...
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... Miller plateau voltage shown in Figure 11. gsp Similarly an approximate expression for gsp Only a portion of the total losses P 2007 Semtech Corp. in the MOSFET package. Here Q specified in the datasheet. The power dissipated within the MOSFET package and clarify r f The total power loss of the top switch is then ...
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... The following table lists a few standard resistor combi- nations for realizing some commonly used output voltages. Only the voltages in boldface can be precisely set with standard 1% resistors. From this table, one may also observe that when the value 2007 Semtech Corp. for the top (P ) and max ...
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... The power stage of a buck converter control-to-output transfer function is as shown below where 2007 Semtech Corp Output inductance C - Output capacitance R - Output capacitor ESR Input voltage IN The transfer function of the error amplifier with external larger but the compensation network is as follows COMP s referring to Fig. 7, where ...
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... 2007 Semtech Corp. The maximum voltage to drive an NPN transistor is AVCC minus the voltage drop across the internal P-MOSFET which is the product of On-Resistance and sourcing cur- O rent. The maximum driving voltage with 5mA sourcing current is minimum AVCC (4.5V) minus 5mA times maxi- mum On-Resistance 140 , i ...
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... POWER MANAGEMENT Evaluation Board Schematic 2007 Semtech Corp. VIN ILIM1 27 1 BDI ILIM2 28 14 PVCC PGND 22 21 AVCC AGND SC2463 www.semtech.com ...
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... R10 35 1 R11 36 1 R16 37 1 R18 38 1 R19 39 1 R20 40 2 R22,R23 2007 Semtech Corp. Value Manufacturer 10uF/16V TDK 10uF 1uF 0.1uF 0.1uF 6.8nF 680uF/4V Sanyo Open 10uF TDK 100uF TDK 5.6nF 390pF 3.3nF 470uF/6.3V Sanyo 680pF 4.7nF 22uF 2 ...
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... LDO CH3 LOAD TRANSIENT LDO CH3 LOAD TRANSIENT LDO CH3 LOAD TRANSIENT LDO CH3 LOAD TRANSIENT LDO CH3 LOAD TRANSIENT 200US/DIV A: CH1 LOAD CURRENT, 0.25A/US, 0.5A/DIV C: CH3 OUTPUT VOLTAGE, 20MV/DIV 2007 Semtech Corp. STARTUP SEQUENCE( ARTUP SEQUENCE(2) ARTUP SEQUENCE(2) ARTUP SEQUENCE(2) ...
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... DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. 4. REFERENCE JEDEC STD MO-153, VARIATION AE. Land Pattern - TSSOP-28 X (C) P NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. Contact Information Phone: (805)498-2111 FAX (805)498-3804 2007 Semtech Corp. A DIM ...