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EN5330 Datasheet(PDF) 6 Page - Enpirion, Inc. |
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EN5330 Datasheet(HTML) 6 Page - Enpirion, Inc. |
6 / 11 page Rev 1.0 – July 2005 www.enpirion.com EN5330 6 Pin Descriptions PIN NAME FUNCTION 1 COMP Output of the buffer leading to the error amplifier. Used for external modifications of the compensation network. 2 XFB External feedback voltage input. Option for programming the output voltage with a resistor divider on VOUT. 3 VSENSE Remote voltage sense input. Connect this pin to the load voltage at the point to be regulated. 4 EAIN Input of the error amplifier for external modifications of the compensation network. 5 EAOUT Output of the error amplifier for external modifications of the compensation network. 6 ENABLE Enable input. An input high enables operation. An input low disables operation. 7 NC NO CONNECT – Do not electrically connect this pin to PCB. See Note 5. 8 XOV Over-Voltage set-point input. When using an external voltage divider and the XFB pin. When VS0, VS1 and VS2 are left OPEN or pulled high, an additional voltage divider separate from the XFB pin is required to set the OVP set-point. In this mode, the OVP function is disabled if this voltage divider is not present. 9 10 11 12 PGND Power ground for the power stage circuits. 13 14 15 16 17 18 VOUT Voltage and power output. 19 VDRAIN Test point between the power FETs and Inductor. 20 21 22 23 PGND Power ground for the power stage circuits. 24 NC NO CONNECT – Do not electrically connect this pin to PCB. See Note 5. 25 26 27 28 PVIN Power voltage input for the power stage circuits. 29 VS2 Voltage select line 2 input. See Table 1. 30 ROCP Over-Current trip point adjust input. Used for adjusting the OCP trip point. 31 VS1 Voltage select line 1 input. See Table 1. 32 AVIN Analog voltage input for the controller circuits. 33 AGND Analog ground for the controller circuits. 34 VS0 Voltage select line 0 input. See Table 1. 35 POK Power OK is an open drain transistor for power system state indication. 36 SS Soft-Start node. A capacitor is connected between this pin and AGND. NOTES: 5. This pin is used for engineering test purposes and reserved for future use. Solder, but do not electrically connect this pin to the PCB. |
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