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EN5310 Fiches technique(PDF) 5 Page - Enpirion, Inc.

No de pièce EN5310
Description  1A Voltage Mode Synchronous Buck PWM DC-DC Converter
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Fabricant  ENPIRION [Enpirion, Inc.]
Site Internet  http://www.enpirion.com
Logo ENPIRION - Enpirion, Inc.

EN5310 Fiches technique(HTML) 5 Page - Enpirion, Inc.

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Rev 0.95 – March 2005
www.enpirion.com
EN5310
5
Pin Descriptions
PIN
NAME
FUNCTION
1
NC
NO CONNECT – Do not electrically connect this pin to PCB. See Note 5.
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
NC
NO CONNECT – Do not electrically connect this pin to PCB. See Note 5.
5
NC
NO CONNECT – Do not electrically connect this pin to PCB. See Note 5.
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
NC
NO CONNECT – Do not electrically connect this pin to PCB. See Note 5.
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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