EP5348UI-E Enpirion, EP5348UI-E Datasheet - Page 2

• Manufacturer Part Number: EP5348UI-E
• Description: Power Management Development Tools EP5348UI Eval Board 400mA/5MHz Buck Reg
• Manufacturer: Enpirion
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of EP5348UI-E

• Product: Power Management Development Tools
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: EP5348UI

Ordering Information
Pin Description
©Enpirion 2011 all rights reserved, E&OE
EP5348UI
EP5348UI-E
PIN
Part Number
3, 8, 9
1, 13,
05721
6, 7
14
10
11
12
2
4
5
ENABLE
NC(SW)
NAME
PGND
AGND
VOUT
AVIN
PVIN
VFB
NC
EP5348UI Evaluation Board
14-pin μQFN T&R
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.
NO CONNECT: These pins may already be connected inside the device. Therefore, they
cannot be electrically connected to each other or to any external signal, voltage, or ground.
They must however be soldered to the PCB. Failure to follow this guideline may result in
device damage.
Feedback pin for external voltage divider network.
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 Enable. Enable = logic high; Disable = logic low
Input power supply for the controller circuitry. Connect to VIN at a quiet point.
Input Voltage for the MOSFET switches.
Package
6/15/2011
Pin Assignments (Top View)
2
Figure 2: EP5348UI Pin Out Diagram (Top View)
FUNCTION
NC(SW)
PGND
AGND
VFB
NC
1
2
3
4
5
EP5348UI
14
6
13
7
www.enpirion.com
12
11
10
9
8
PVIN
AVIN
ENABLE
NC
NC
EP5348UI
Rev: B