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ISL9305H Datasheet(PDF) 3 Page - Intersil Corporation |
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ISL9305H Datasheet(HTML) 3 Page - Intersil Corporation |
3 / 17 page ISL9305H 3 FN7724.1 October 5, 2011 Block Diagram 11 FB2 Feedback pin for DCD2, connect external voltage divider resistors between DCD2 output, this pin and ground. For fixed output versions, connect this pin directly to the DCD2 output. 12 VINDCD2 Input voltage for buck converter DCD2. 13 SW2 Switching node for DCD2, connect to one terminal of the inductor. 14 GNDDCD2 Power ground for DCD2. 15 GNDDCD1 Power ground for DCD1. 16 SW1 Switching node for DCD1, connect to one terminal of the inductor. E-PAD E-PAD Exposed Pad. Connect to system ground. Pin Descriptions (Continued) PIN NUMBER (TQFN) NAME DESCRIPTION LDO1 300mA I2C INTERFACE DCD2 BUCK CONVERTER UVLO VREF OSC VINDCD1 FB1 SW1 GNDDCD1 VINDCD2 FB2 SW2 GNDDCD2 VINLDO1 VOLDO1 VINLDO2 VOLDO2 SDAT SCLK DCDPG GNDLDO 10µF 10µF 1µF 10µF 10µF 10µF 10µF 1µF 1.5µH 1.5µH DCD1 BUCK CONVERTER OVERCURRENT PROTECTION ANALOG/LOGIC CIRCUIT INPUT THERMAL SHUTDOWN PGOOD WITH 1~200ms DELAY TIME LDO2 300mA SHORT CIRCUIT PROTECTION |
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