SC1592ISTRT Semtech, SC1592ISTRT Datasheet
SC1592ISTRT
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SC1592ISTRT Summary of contents
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... Microprocessor and chipset supplies Split plane microprocessor supplies Advanced graphics cards supplies Sound cards and auxiliary power supplies SMPS post regulator CNTL OUT SC1592 IN SENSE GND EN ILIM R1 TTL 100 1 SC1592 = 1.25V to 16V 16V CNTL +1.8V Vout C3 R2 47uF(cer) 66 OUT REF typ . REF www.semtech.com ...
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... Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not implied Electrical Characteristics Unless specified 2.5V 3.3V CNTL Values in bold indicate -40°C < T < +125° 2004 Semtech Corp 1.8V 10mA 100 , T OUT OUT LIM < SC1592 25° ° < ° ...
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... Values in bold indicate -40°C < T < +125° Notes: (1) For load regulation use a 1ms current pulse width, d.c. (2) Current limit is programmable, I LIM 2004 Semtech Corp. = 1.8V 10mA 100 , T OUT OUT LIM 10% when measuring VOUT. 240 V OUT R LIM 3 SC1592 = T = 25° www.semtech.com ° C ° C µ µ ...
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... DDPAK) Top View ILIM CNTL 4 5 (SOIC-8L EDP) Pin Descriptions 2004 Semtech Corp. Ordering Information Notes (1) Only available in tape and reel packaging. A reel contains 800 devices for TO-263 package and 2500 devices for SOIC package. (2) When ordering Evaluation Board please specify pack- age needed (TO-263(DDPAK) or SOIC(EDP)) ...
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... Externally programmable current limit resistor. LIM Accuracy of the current limit setting is better than ±20% over full operating temperature range. *Internal ESD structure. In cases where EN is permanently tied to V resistor should be inserted in the link between EN and V 2004 Semtech Corp. Figure 1 , it’s recommended that a 10-20k IN . ...
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... Initial accuracy of the internal voltage reference V = 0.8V 1% over full temperature range. REF This commands the use of 0.5% or better accuracy resistors to build a precision power supply. 2004 Semtech Corp. +3.3V Vcntl C1 2.2uF +2.5V Vin up to 16V, providing C2 ...
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... POWER MANAGEMENT Typical Characteristics 2004 Semtech Corp. Load Transient Reponse I step : rate /uS Time (2ms/div) I step : rate /uS Time (200us/div) 7 SC1592 1.8V OUT V = 3.3V CNTL C = 22uF 100uF OUT 1.8V OUT V = 3.3V CNTL C = 22uF 100uF OUT www.semtech.com ...
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... Semtech Corp. Load Regulation V = 3.3V CNTL V = 2.5V IN 0.0 0.5 1.0 1.5 2.0 OUTPUT CURRENT (A) Output Voltage vs. Tem perature V = 3.3V CNTL V = 2.5V ...
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... POWER MANAGEMENT Typical Characteristics (Cont.) 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 -40 2004 Semtech Corp. EnableThreshold vs. Temperature V = 3.3V CNTL 1.8V OUT I = 10mA OUT - TEMPERATURE ( SC1592 100 120 www.semtech.com ...
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... POWER MANAGEMENT Typical Characteristics (Cont.) 1.1 1.0 0.9 0.8 0.50 0.40 0.30 0.20 0.10 0.00 2004 Semtech Corp. Dropout Voltage (Control Supply) INITIAL V = 3.3V CNTL 1.8V OUT OUTPUT CURRENT (A) Dropout Voltage (Input Supply 3.3V CNTL INITIAL 1.8V OUT OUTPUT CURRENT (A) ...
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... POWER MANAGEMENT Typical Characteristics (Cont.) 10000 1000 100 10 2004 Semtech Corp. Contol Current vs. Tem perature (In Shutdow n) 1 -40 - TEMPERATURE ( o C) Control Current vs Tem perature (In Regulation) 100 10 1 -40 - TEMPERATURE ( o 11 SC1592 V = 3.3V CNTL 10mA OUT 80 100 120 OUT OUT OUT V = 3.3V CNTL ...
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... POWER MANAGEMENT Typical Characteristics (Cont.) 1500 1400 1300 1200 1100 1000 900 800 700 600 500 500 450 400 350 300 250 200 150 100 50 0 2004 Semtech Corp. Dropout Voltage vs. Temperature ( CNTL OUT INITIAL 2. 1.8v OUT OUT - TEMPERATURE ( o C) Dropout Voltage vs ...
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... POWER MANAGEMENT Typical Characteristics (Cont.) 10 0.1 0.01 0.001 0.01 0.001 0.01 0.001 2004 Semtech Corp. 47uF ESR vs. Iout 1 Stable Area 0 0.5 1 1.5 2 OUTPUT CURRENT (A) 150uF ESR vs. Iout 10 1 0.1 Stable Area 0 0.5 1 1.5 OUTPUT CURRENT (A) 330uF ESR vs. Iout 10 1 0.1 Stable ...
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... POWER MANAGEMENT Evaluation Board Schematic +3.3V Vcntl C1 2.2uF +2.5V Vin C2 22uF (cer) V OUT V REF Evaluation Board Schematic - Bill of Material 2004 Semtech Corp. CNTL OUT U1 SC1592 IN SENSE R opt EN GND ILIM 10k 100 REF typ . ± ± ± ± SC1592 +1.8V Vout C3 100uF ...
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... POWER MANAGEMENT Evaluation Board - SOIC-8 EDP 2004 Semtech Corp. 15 SC1592 www.semtech.com ...
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... POWER MANAGEMENT Evaluation Board - TO-263-7L (DDPAK) 2004 Semtech Corp. 16 SC1592 www.semtech.com ...
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... POWER MANAGEMENT Outline Drawing - SOIC-8L EDP Land Pattern - SOIC-8L EDP 2004 Semtech Corp. 17 SC1592 www.semtech.com ...
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... POWER MANAGEMENT Outline Drawing - TO-263-7L (DDPAK) Recommended Land Pattern - TO-263-7L (DDPAK) Contact Information 2004 Semtech Corp. Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 18 SC1592 (FOR REFERENCE) www.semtech.com ...