參數(shù)資料
型號(hào)： LM2852XMXAX-3.3
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： 2A 500/1500kHz SIMPLE SYNCHRONOUS Buck Regulator
中文描述： 4.95 A SWITCHING REGULATOR, 1825 kHz SWITCHING FREQ-MAX, PDSO14
封裝： TSSOP-14
文件頁數(shù)： 2/13頁
文件大?。?/td> 618K
代理商： LM2852XMXAX-3.3
Connection Diagram
TOP VIEW
20127003
MXA14A
Pin Descriptions
AVIN (Pin 1):
Chip bias input pin. This provides power to the
logic of the chip. Connect to the input voltage or a separate
rail.
EN (Pin 2):
Enable. Connect this pin to ground to disable the
chip, connect to AVIN or leave floating to enable the chip;
enable is internally pulled up.
SGND (Pin 3):
Low-noise ground.
SS (Pin 4):
Soft-start pin. Connect this pin to a small capaci-
tor to control startup and soften inrush current. The soft-start
capacitance range is restricted to values 1 nF to 50 nF.
NC (Pins 5, 12 and 13):
No-connect. These pins must be
tied to ground or left floating in the application.
PVIN (Pins 6, 7):
Input supply pin. PVIN is connected to the
input voltage. This rail connects to the source of the internal
power PFET.
SW (Pins 8, 9):
Switch pin. Connect to the output inductor.
PGND (Pins 10, 11):
Power ground. Connect this to an
internal ground plane or other large ground plane.
SNS (Pin 14):
Output voltage sense pin. Connect this pin to
the output voltage as close to the load as possible.
Exposed Pad:
Connect to ground.
L
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