ep5352q Enpirion, ep5352q Datasheet - Page 4

• Manufacturer Part Number: ep5352q
• Description: 500/600/800ma Synchronous Buck Regulators With Integrated Inductor
• Manufacturer: Enpirion

March 2007
Pin Description
V
to the IC. V
Input GND: (Pin 3): Input power ground.
Connect this pin to the ground terminal of the
input
Recommendations for further details.
Output GND: (Pin 4): Power ground.
output filter capacitor should be connected to
this pin. Refer to Layout recommendations for
further detail.
V
NC
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.
V
regulation.
voltage rail as close to the terminal of the
output filter capacitor as possible.
©Enpirion 2007 all rights reserved, E&OE
IN
OUT
SENSE
GND
GND
V
V
V
V
OUT
OUT
IN
IN
Figure 2. Pin description, top view.
(Pin 1,2): Input voltage pin. Supplies power
(Pin 5,6,7): Regulated output voltage.
(Pin
1
2
3
4
5
6
(Pin 15): Sense pin for output voltage
capacitor.
EP53x2Q
IN
8,9,10,11,12,13,14):
can range from 2.4V to 5.5V.
Connect V
16
15
14
13
12
11
Refer
V
SENSE
V
NC
NC
NC
NC
SENSE
FB
to
to the output
These
Layout
pins
The
4
Figure 3. Pin description, bottom view.
V
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 V
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 V
≤ 0.4V. Logic high is defined as V
Any level between these two values is
indeterminate. (refer to section on output
voltage select for more detail).
ENABLE (Pin 20): Output enable. Enable =
logic high, disable = logic low. Logic low is
defined as V
as V
values is indeterminate.
Thermal Pad. Thermal pad to remove heat
from package. Connect to surface ground pad
and PCB internal ground plane.
FB
V
SENSE
V
NC
NC
NC
NC
(Pin 16): Feed back pin for external divider
FB
HIGH
16
15
14
13
12
11
≥ 1.4V. Any level between these two
FB
EP53x2Q
LOW
= 0.603V.
Thermal
Pad
EP5382Q/EP5362Q/EP5352Q
≤ 0.2V. Logic high is defined
1
2
3
4
6
5
V
V
V
V
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GND
GND
IN
IN
OUT
OUT
HIGH
≥ 1.4V.
LOW