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| RT9740A Datasheet, PDF (1/16 Pages) Richtek Technology Corporation – Dual Channel, Ultra-Low Resistance Load Switch | |||
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RT9740A
Dual Channel, Ultra-Low Resistance Load Switch
General Description
The RT9740A is a small, ultra-low RON, dual channel load
switch with EN controlled pin. The product contains two
N-MOSFETs that can operate between an input voltage
range of 0.8V to 5.5V. Also, it supports a maximum
continuous current of 6A each channel. Each switch is
independently controlled by EN pins (EN1 and EN2), which
can directly interface with low-voltage control signals.
The RT9740A is available in the WDFN-14TL 3x2 package
with exposed pad for high power and heat dissipation.
Ordering Information
RT9740A
Package Type
QW : WDFN-14TL 3x2 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
ï½ RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
ï½ Suitable for use in SnPb or Pb-free soldering processes.
Marking Information
0M : Product Code
0MW
W : Date Code
Features
ï¬ Integrated Dual Channel Load Switch
ï¬ Input Voltage Range : 0.8V to 5.5V
ï¬ Ultra-Low RON Resistance
ï½ RON = 18mΩ at VIN = 5V (VDD = 5V)
ï½ RON = 18mΩ at VIN = 3.6V (VDD = 5V)
ï½ RON = 18mΩ at VIN = 1.8V (VDD = 5V)
ï¬ 6A Maximum Continuous Switch Current Per
Channel
ï¬ Low Quiescent Current
ï½ 75μA (Both Channels)
ï½ 55μA (Single Channel)
ï¬ Low Control Input Threshold Enables Use of 1.4V/
1.8V/2.5V/3.3V Logics
ï¬ Configurable Rise Time
ï¬ Quick Output Discharge (QOD)
ï¬ Adaptive Discharge Current
ï¬ 14T-Lead WDFN Package with Thermal Pad
ï¬ RoHS Compliant and Halogen Free
Applications
ï¬ UltrabookTM
ï¬ Notebooks/Netbooks
ï¬ Tablet PC
ï¬ Consumer Electronics
ï¬ Set-Top Boxes/Residential Gateways
ï¬ Telecom Systems
ï¬ Solid State Drives (SSD)
Simplified Application Circuit
CIN1
Dual Power
Supply
or
Dual DC/DC
Converter
Enable
Enable
CIN2
VIN1
VOUT1
RT9740A
EN1
VDD
EN2
VIN2
SS1
SS2
VOUT2
GND
COUT1
VOUT1
RL1
CSS1
CSS2
COUT2
VOUT2
RL2
Copyright ©2014 Richtek Technology Corporation. All rights reserved.
DS9740A-01 July 2014
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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