參數(shù)資料
型號(hào): EP53F8QI
廠商: ENPIRION INC
元件分類: 穩(wěn)壓器
中文描述: 1.5 A SWITCHING REGULATOR, 4000 kHz SWITCHING FREQ-MAX, QCC16
封裝: 3 X 3 MM, 1.10 MM HEIGHT, HAOLOGEN FREE AND ROHS COMPLIANT, QFN-16
文件頁(yè)數(shù): 4/11頁(yè)
文件大小: 259K
代理商: EP53F8QI
01542
4/3/2009
Rev:A
EP53F8QI
Enpirion 2009 all rights reserved, E&OE
2
www.enpirion.com
Ordering Information
Part Number
Temp Rating
(°C)
Package
EP53F8QI-T
-40 to +85
16-pin QFN T&R
EP53F8QI-E
QFN Evaluation Board
Pin Assignments (Top View)
Figure 3: Pin Diagram (Top View)
Pin Description
PIN
NAME
FUNCTION
1,
15,16
NC(SW)
No Connect. These pins are internally connected to the common drain output 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.
2-3,
PGND
Input/Output Power Ground. Connect these pins to the ground electrode of the input and
output filter capacitors. Refer to Layout Considerations section for details.
4
AVIN2
Analog input voltage. Connect to AVIN1 only.
5
VFB
Feedback Pin for External Voltage Divider Network. Connect a resistor divider to this pin to
set the output voltage. Use 100 k
Ω, 1% or better for the upper resistor.
6
NC
No Connect.
7,8
VOUT
Voltage and Power Output. Connect these pins to output capacitor(s).
9
AGND
Analog Ground for the Controller Circuits
10
AVIN1
Analog Voltage Input for the Controller Circuits. Connect this pin to PVIN with a 10
Ω
resistor. Connect a 1 uF capacitor between this pin and AGND. Connect AVIN2 to this pin.
11
POK
Power OK with an Open Drain Outp t. Refer to Power OK section.
12
ENABLE
Input Enable. A logic high signal on this pin enables the output and initiates a soft start. A
logic low signal disables the output and discharges the output to GND. This pin must not be
left floating.
13-14
PVIN
Input Power Supply. Connect to input supply. Decouple with input capacitor(s) to PGND.
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