EN5330DC 查看數據表（PDF） - Enpirion, Inc.
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EN5330DC Datasheet PDF : 11 Pages
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Rev 1.0 – July 2005
EN5330
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.
Over-Voltage set-point input. When using an external voltage divider and the XFB pin. When
8
XOV
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
PGND Power ground for the power stage circuits.
12
13
14
15
16
VOUT Voltage and power output.
17
18
19 VDRAIN Test point between the power FETs and Inductor.
20
21
PGND Power ground for the power stage circuits.
22
23
24
NC
NO CONNECT – Do not electrically connect this pin to PCB. See Note 5.
25
26
27
PVIN Power voltage input for the power stage circuits.
28
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.
6
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