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NCP4543 Datasheet, PDF (1/10 Pages) ON Semiconductor – Advanced Load Management | |||
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NCP4543
ecoSwitcht
Advanced Load Management
Controlled Load Switch with Low RON
The NCP4543 load switch provides a component and area-reducing
solution for efficient power domain switching with inrush current
limit via soft start. It is designed to integrate control and driver
functionality with a high performance low on-resistance power
MOSFET in a single device. This cost effective solution is ideal for
power management and hotâswap applications requiring low power
consumption in a small footprint.
Features
⢠Advanced Controller with Charge Pump
⢠Integrated NâChannel MOSFET with ESD Protection
⢠SoftâStart via Adjustable Slew Rate Control
⢠Low OnâResistance
⢠Input Voltage Range 0.5 V to 6 V
⢠Low Standby Current
⢠Load Bleed Function
⢠No External Components Required
⢠Enable Pins with CMOS Input Levels
⢠This is a PbâFree Device
Typical Applications
⢠Notebook and Tablet Computers
⢠Handheld Electronics
⢠Digital Cameras
⢠Portable Medical Devices
⢠Hard Drives
⢠Peripheral Ports
3 V â 5.5 V
Controller
0.5 V â 6 V
http://onsemi.com
RON TYP
10.2 mW
12.2 mW
VCC
5.0 V
3.3 V
VIN
1.8 V
5.0 V
IMAX
7.3 A
MARKING
DIAGRAM
1
QFN18, 3x3
CASE 485BF
1 NCP
4543
ALYW
G
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= PbâFree Package
PIN CONFIGURATION
DELAY 1
VCC 2
GND 3
VIN 4
19: VIN
13 BLEED
12 VIN
11 VIN
10 VIN
Bandgap
&
Biases
Charge
Pump
RC
Oscillator
Delay and
Slew Rate
Control
Load
Figure 1. Typical Application â No external components included
(Top View)
ORDERING INFORMATION
Device
Package
NCP4543IMN5RGâA QFN18
(PbâFree)
Shippingâ
3000 /
Tape & Reel
â For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2012
1
January, 2012 â Rev. 4
Publication Order Number:
NCP4543/D
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