SC1159 Semtech Corporation, SC1159 Datasheet
SC1159
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SC1159 Summary of contents
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... The integrated D/A converter provides programmability of output voltage from 1.050V to 1.825V in 25mV increments. The SC1159 high side driver can be configured as either a ground-referenced floating bootstrap driver. The high and low side MOSFET drivers have a peak cur- rent rating of 2 amps. ...
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... POWER MANAGEMENT Test Circuit Timing Diagram Simplified Block Diagram 2002 Semtech Corp. 7 SC1159 www.semtech.com ...
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... POWER MANAGEMENT Block Diagram 2002 Semtech Corp. 10 SC1159 www.semtech.com ...
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... The droop compensation network reduces the load tran- sient overshoot/undershoot at VOUT, relative to VREF. VOUT is programmed to a voltage greater than VREF equal N- DS(ON) to VREF • (1+R7/R8) (see Typ. App. Circuit external resistor divider from VOUT to the VSENSE pin to reduce the undershoot on VOUT during a low to high load 12 SC1159 www.semtech.com ...
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... The minimum drive voltage is 7V. The minimum short circuit current is 100mA. 13 SC1159 can remain the same the current flowing out of the REFB pin. It www.semtech.com = I /5 ...
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... POWER MANAGEMENT Application Circuit 2002 Semtech Corp. 14 SC1159 www.semtech.com ...
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... OUT OUT OUT OUT OUT -1% -2% - SC1159 Current Current Current, A www.semtech.com ...
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... OUT OUT OUT OUT OUT -1% -2% - SC1159 Current Current Current, A www.semtech.com ...
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... POWER MANAGEMENT Evaluation Board Artwork Lay Bottom Layer Bottom Layer Bottom Layer Bottom Layer Bottom Layer Mid Layer Mid Layer Mid Layer Mid Layer Mid Layer 2002 Semtech Corp. 17 SC1159 www.semtech.com ...
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... POWER MANAGEMENT Evaluation Board Artwork (Cont Overla erla erla erla erlay Bottom Overlay Bottom Overlay Bottom Overlay Bottom Overlay Bottom Overlay 2002 Semtech Corp. 18 SC1159 www.semtech.com ...
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... In order to prevent substrate glitching, a small (0.5A) Schottky diode should be placed in close proximity to the chip with the cathode connected to BOOTLO and anode connected to DRVGND. Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 20 SC1159 www.semtech.com ...