EP53A8LQA Datasheet, PDF (2/21 Pages) Altera Corporation – Integrated Inductor

EP53A8LQA/EP53A8HQA
Ordering Information
Part Number
EP53A8LQA
EP53A8HQA
EVB-EP53A8xQA
Package Markings
BJXX
BMXX
T_A (°C)
-40 to +105
-40 to +105
Package Description
16-pin (3mm x 3mm x 1.1mm) QFN
16-pin (3mm x 3mm x 1.1mm) QFN
QFN Evaluation Board
Packing and Marking Information: www.altera.com/support/reliability/packing/rel-packing-and-marking.html
Pin Assignments (Top View)
NC(SW) ¹
PGND 2
PGND 3
VFB 4
VSENSE ⁵
AGND 6
16 15
7
8
14 _PVIN
NC(SW) ¹
13 AVIN
PGND 2
12 ENABLE
PGND 3
11 VS0
NC 4
10 VS1
VSENSE ⁵
9 _VS2
AGND 6
16 15
7
8
14 _PVIN
13 AVIN
12 ENABLE
11 VS0
10 VS1
9 _VS2
Figure 3. EP53A8LQA Pin Out Diagram (Top View)
Figure 4. EP53A8HQA 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
PIN
1, 15, 16
2,3
4
5
6
7, 8
NAME
NAME
NC(SW)
PGND
VFB
VSENSE
AGND
VOUT
FUNCTION
FUNCTION
NO CONNECT – These pins are internally connected to the common switching node of the
internal MOSFETs. NC (SW) pins are not to be electrically connected 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 to the device.
Power ground. Connect this pin to the ground electrode of the Input and output filter
capacitors.
EP53A8LQA: Feedback pin for external divider option.
EP53A8HQA: No Connect
Sense pin for preset output voltages. Refer to application section for proper configuration.
Analog ground. This is the quiet ground for the internal control circuitry, and the ground return
for external feedback voltage divider
Regulated Output Voltage. Refer to application section for proper layout and decoupling.
10366
July 21, 2015
www.altera.com/enpirion, Page 2
Rev D