EP5358XUI Datasheet, PDF (2/16 Pages) Altera Corporation – 600mA PowerSoC Synchronous Buck Regulator with Integrated Inductor

Ordering Information
Part Number
Comment
Package
EP5358LUI
LOW VID Range 16-pin QFN T&R
EP5358HUI
HIGH VID Range 16-pin QFN T&R
EVB-EP5358LUI
EP5358LUI Evaluation Board
EVB-EP5358HUI EP5358HUI Evaluation Board
EP5358LUI/EP5358HUI
Pin Assignments (Top View)
NC(SW) 1
PGND 2
PGND 3
VFB 4
VSENSE 5
AGND 6
16 15
78
14 PVIN
13 AVIN
12 ENABLE
11 VS0
10 VS1
9 VS2
Figure 3: EP5358LUI Pin Out Diagram (Top View)
NC(SW) 1
PGND 2
PGND 3
NC 4
VSENSE 5
AGND 6
16 15
78
14 PVIN
13 AVIN
12 ENABLE
11 VS0
10 VS1
9 VS2
Pin Description
Figure 4: EP5358HUI Pin Out Diagram (Top View)
PIN
1, 15,
16
2,3
4
5
6
7, 8
9, 10,
11
12
13
14
NAME
NC(SW)
PGND
VFB/NC
VSENSE
AGND
VOUT
VS2, VS1,
VS0
ENABLE
AVIN
PVIN
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 these pins together and to the ground electrode of the Input and
output filter capacitors.
EP5358LUI: Feed back pin for external divider option.
EP5358HUI: 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.
Output voltage select. VS2 = pin 9, VS1 = pin 10, VS0 = pin 11.
EP5358LUI: Selects one of seven preset output voltages or an external resistor divider.
EP5358HUI: Selects one of eight preset output voltages.
(Refer to section on output voltage select for more details.)
Output Enable. Enable = logic high; Disable = logic low
Input power supply for the controller circuitry.
Input Voltage for the MOSFET switches.
www.altera.com/enpirion Page 2
03541
October 11, 2013
Rev F