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ISL9104AIRUFZ-T Datasheet(PDF) 7 Page - Intersil Corporation |
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ISL9104AIRUFZ-T Datasheet(HTML) 7 Page - Intersil Corporation |
7 / 13 page 7 FN6829.3 July 9, 2009 Pin Descriptions VIN Input supply voltage. Typically connect a 4.7µF ceramic capacitor to ground. NC No connect, leave it floating. EN Regulator enable pin. Enable the device when driven to high. Shut down the chip and discharge output capacitor when driven to low. Do not leave this pin floating. SW Switching node connection. Connect to one terminal of inductor. GND Ground connection. FB Buck converter output feedback pin. For adjustable output version, its typical value is 0.8V and connect it to the output through a resistor divider for desired output voltage; for fixed output version, directly connect this pin to the converter output. FIGURE 17. LOAD TRANSIENT IN PWM MODE (VIN = 3.6V, VO = 1.5V, 200mA TO 500mA) FIGURE 18. LOAD TRANSIENT IN PWM MODE (VIN = 3.6V, VO = 1.5V, 500mA TO 200mA) FIGURE 19. LOAD TRANSIENT IN PWM MODE (VIN = 3.6V, VO = 2.5V, 200mA TO 500mA) FIGURE 20. LOAD TRANSIENT IN PWM MODE (VIN = 3.6V, VO = 2.5V, 500mA TO 200mA) Typical Operating Performance (Continued) 5V/DIV 20mV/DIV 500mA/DIV VSW Io VOUT (AC COUPLED) 5V/DIV 20mV/DIV 500mA/DIV VSW Io VOUT 5V/DIV 20mV/DIV 500mA/DIV VSW Io VOUT (AC COUPLED) 5V/DIV 20mV/DIV 500mA/DIV VSW Io VOUT (AC COUPLED) ISL9104, ISL9104A |
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