EP5368QI Datasheet, PDF (2/14 Pages) Enpirion, Inc. – 600mA Synchronous Buck Regulator With Integrated Inductor

Ordering Information
EP5368QI
Pin Assignments (Top View)
Part Number
EP5368QI
EVB-EP5368QI
Temp Rating
(°C)
Package
-40 to +85
16-pin QFN T&R
EP5368QI Evaluation Board
Figure 3: Pin Out Diagram (Top View)
Pin Description
PIN
1, 15,
16
2
3,9
4
5
6
7, 8
10, 11,
12
13
14
NAME
NC (SW)
PGND
NC
V_FB
V_SENSE
AGND
V_OUT
VS2, VS1,
VS0
ENABLE
V_IN
FUNCTION
NO CONNECT – These pins are internally connected to the common switch node of the
internal MOSFETs. NC(SW) pins are not to be electrically connected to any external signal,
voltage, or ground. These pins must be soldered to the PCB. Failure to follow this guideline
may result in part malfunction or damage.
Power Ground
NO CONNECT - These pins are not electrically connected internally. They may be
connected to ground externally if necessary to increase trace width in layout. These pins
must be soldered to the PCB.
Feed back pin for external divider 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 = 0.6V. The “ground” side of the external divider should be connected to
AGND.
Sense pin for preset output voltages. Connect to the output capacitor.
Analog ground. This is the quiet ground for the internal control circuitry.
Regulated Output Voltage
Output voltage select. VS2=pin10 VS1=pin11, VS0=pin12. 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_LOW ≤ 0.4V. Logic high is defined as V_HIGH ≥ 1.4V. Any level between these
two values is indeterminate. (Refer to section on output voltage select for more detail).
Output enable: Enable = logic high, disable = logic low. Logic low is defined as V_LOW ≤ 0.4V.
Logic high is defined as V_HIGH ≥ 1.4V. Any level between these two values is indeterminate.
Input voltage pin. Supplies power to the IC.
03260
2
October 11, 2013
www.altera.com/enpirion
Rev H