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LM2852XMXAX-1.8 Arkusz danych(PDF) 3 Page - Texas Instruments

Numer części LM2852XMXAX-1.8
Szczegółowy opis  Synchronous Simple Switcher Buck Regulator
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Producent  TI1 [Texas Instruments]
Strona internetowa  http://www.ti.com
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LM2852XMXAX-1.8 Arkusz danych(HTML) 3 Page - Texas Instruments

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EN
SGND
SS
NC
PVIN
PVIN
SNS
NC
NC
PGND
PGND
SW
SW
AVIN
LM2852
1
2
3
4
5
7
6
14
13
12
11
10
8
9
LM2852
www.ti.com
SNVS325E – JANUARY 2005 – REVISED JANUARY 2016
5 Pin Configuration and Functions
PWP Package
14-Pin HTSSOP
Top View
Pin Functions
PIN
I/O
DESCRIPTION
NAME
NO.
Chip bias input pin. This provides power to the logic of the chip. Connect to the input voltage
AVIN
1
I
or a separate rail.
Enable. Connect this pin to ground to disable the chip; connect to AVIN or leave floating to
EN
2
I
enable the chip; enable is internally pulled up.
Exposed
Connect to ground.
NC
5, 12, 13
No connect. These pins must be tied to ground or left floating in the application.
PGND
10, 11
G
Power ground. Connect this to an internal ground plane or other large ground plane.
Input supply pin. PVIN is connected to the input voltage. This rail connects to the source of
PVIN
6, 7
I
the internal power PFET.
SGND
3
G
Signal ground.
Output voltage sense pin. Connect this pin to the output voltage as close to the load as
SNS
14
O
possible.
Soft-start pin. Connect this pin to a small capacitor to control startup. The soft-start
SS
4
I
capacitance range is restricted to values 1 nF to 50 nF.
SW
8, 9
O
Switch pin. Connect to the output inductor.
Copyright © 2005–2016, Texas Instruments Incorporated
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