EL711DI
Ordering Information
Part Number
EL711DI
EL711DI-E
Package Markings
L711
L711
T
AMBIENT
Rating (°
C)
-40 to +85
Package Description
16-pin (3.0mm x 4.5mm x 0.9mm) DFN T&R
DFN Evaluation Board
Packing and Marking Information:
http://www.enpirion.com/resource-center-packing-and-marking-information.htm
Pin Assignments (Top View)
Figure 3:
Pin Out Diagram (Top View)
NOTE A:
NC pins are not to be electrically connected to each other or to any external signal, ground, or voltage.
However, they must be soldered to the PCB. Failure to follow this guideline may result in part malfunction or damage.
NOTE B:
White ‘dot’ on top left is pin 1 indicator on top of the device package.
Pin Description
PIN
1
2
4
8
13
NAME
PVIN
PGND
BGND
VOUT
AGND
FUNCTION
Input power supply. Connect to input power supply and place input filter capacitor(s) between
this pin and the PGND pin. Refer to Layout Recommendations section for details.
Power ground. Connect this pin to the ground electrode of the output filter capacitor(s).
Connect to GND plane at all times.
Regulated converter output. Connect to the load and place output filter capacitor(s) between
this pin and the PGND pin. Refer to Layout Recommendations section for details.
Analog ground. This is the quiet ground for the internal control circuits and the ground return
for external feedback voltage divider.
This is the external feedback input pin. A resistor divider connects from the output to AGND.
The mid-point of the resistor divider is connected to VFB. A feed-forward capacitor (C
A
) is
required parallel to the upper feedback resistor (R
A
). The output voltage regulation is based on
the VFB node voltage equal to 0.6V.
Analog input voltage for the control circuits. Connect this pin to the input power supply (PVIN)
at a quiet point.
Device enable pin. A high level or floating this pin enables the device while a low level disables
the device. A voltage ramp from another power converter may be applied for precision enable.
Refer to Power Up Sequencing.
NO CONNECT: These pins must be soldered to PCB but not electrically connected to each
other or to any external signal, voltage, or ground. These pins may be connected internally.
Failure to follow this guideline may result in device damage.
Not a perimeter pin. Device thermal pad to be connected to the ground electrode of the input
filter capacitor(s) with a wide trace. From that point, vias conduct heat to the system GND
plane. Refer to Layout Recommendation section.
14
VFB
15
16
3, 5, 6,7,
9, 10, 11,
12
17
AVIN
ENABLE
NC
PGND
©Enpirion
2012 all rights reserved, E&OE
07889
Enpirion Confidential
November 28, 2012
www.enpirion.com,
Page 2
Rev:
A
ENPIRION [ ENPIRION, INC. ]
