EP5382Q/EP5362Q/EP5352Q
Pin Description
1
VFB
VFB
VIN
16
16
15
14
1
2
VIN
VIN
Thermal
Pad
VIN
2
3
4
15 VSENSE
VSENSE
14
3
4
5
6
GND
GND
VOUT
VOUT
NC
GND
GND
VOUT
VOUT
NC
NC
NC
NC
13
NC
13
12
5
12
NC
6
11 NC
11
Figure 3. Pin description, bottom view.
Figure 2. Pin description, top view.
VIN (Pin 1,2): Input voltage pin. Supplies power
VFB (Pin 16): Feed back pin for external divider
to the IC. VIN can range from 2.4V to 5.5V.
option. When using the external divider option
(VS0=VS1=VS2= high) connect this pin to the
center of the external divider. Set the divider
such that VFB = 0.603V.
Input GND: (Pin 3): Input power ground.
Connect this pin to the ground terminal of the
input capacitor.
Refer to
Layout
Recommendations for further details.
VS0,VS1,VS2 (Pin 17,18,19): Output voltage
select. VS0=pin19, VS1=pin18, VS2=pin17.
Selects one of seven preset output voltages or
choose external divider by connecting pins to
logic high or low. Logic low is defined as VLOW
≤ 0.4V. Logic high is defined as VHIGH ≥ 1.4V.
Any level between these two values is
indeterminate. (refer to section on output
voltage select for more detail).
Output GND: (Pin 4): Power ground. The
output filter capacitor should be connected to
this pin. Refer to Layout recommendations for
further detail.
VOUT (Pin 5,6,7): Regulated output voltage.
NC (Pin 8,9,10,11,12,13,14): These pins
should not be electrically connected to each
other or to any external signal, voltage, or
ground. One or more of these pins may be
connected internally.
ENABLE (Pin 20): Output enable. Enable =
logic high, disable = logic low. Logic low is
defined as VLOW ≤ 0.2V. Logic high is defined
as VHIGH ≥ 1.4V. Any level between these two
values is indeterminate.
VSENSE (Pin 15): Sense pin for output voltage
regulation.
Connect VSENSE to the output
Thermal Pad. Thermal pad to remove heat
from package. Connect to surface ground pad
and PCB internal ground plane.
voltage rail as close to the terminal of the
output filter capacitor as possible.
©Enpirion 2009 all rights reserved, E&OE
4
www.enpirion.com
03132
4/28/2009
Rev:B
ENPIRION [ ENPIRION, INC. ]
