Ultra-Low On-Resistance, 6A Dual Load Switch with Soft Start
Features
•16mΩ(Typical) On-resistance per Channel
•6A Continuous Current
•Soft Start Time Programmable by External
Capacitor
•Wide Input Voltage Range (VIN): 0.8V to 5.5V
•Supply Voltage Range (VBIAS): 3V to 5.5V
•Output Discharge when Switch Disabled
•Reverse Current Blocking when Switch Disabled
•Over-Temperature Protection
•Enable Input
•Lead Free and Green Devices Available (RoHS
Compliant)
Applications
•Notebook
•AIO PC
General Description
The APL3533 is an ultra-low on-resistance, dual powerdistribution switch with external soft start control. It integrates two N-channel MOSFETs that can deliver 6A continuous load current each.
The device integrates over-temperature protection. The
over temperature protection function shuts down the Nchannel MOSFET power switch when the junction temperature rises beyond 160oC and will automatically turns
on the power switch when the temperature drops by 40oC.
The device is available in lead free TDFN2x3-14A
packages.
Simplified Application Circuit
V
Off
On
V
V
BIAS
BIAS
IN1
IN2
VIN1VOUT1
APL3533
VIN2
VOUT2
EN1
EN2
SS1
SS2
GND
www.anpec.com.tw1
V
OUT1
V
OUT2
Pin Configurations
14 VOUT1VIN1 1
VIN1 2
EN1 3
BIAS 4
EN2 5
VIN2 6
VIN2 7
TDFN2x3-14A
(Top View)
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Note : ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which
are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020D for
MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant)and halogen
free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by
weight).
Absolute Maximum Ratings
(Note 1)
Symbol Parameter Rating Unit
V
BAIS to GND Voltage -0.3 ~ 6 V
BIAS
V
, V
VIN1, VIN2 to GND Voltage -0.3 ~ 6 V
IN1
IN2
V
, V
OUT1
V
, V
EN1
TJ Maximum Junction Temperature -40 ~ 150
T
STG
T
SDR
Note1: Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are
VOUT1, VOUT2 to GND Voltage -0.3 ~ 6 V
OUT2
EN1, EN2 to GND Voltage -0.3 ~ 6 V
EN2
Storage Temperature -65 ~ 150
Maximum Lead Soldering Temperature (10 Seconds) 260
o
C
o
C
o
C
stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device
reliability.
Thermal Characteristics
Symbol Parameter Typical Value
θJA
Note 2: θJA is measured with the component mounted on a high effective thermal conductivity test board in free air.
Junction-to-Ambient Resistance in Free Air
Copyright ANPEC Electronics Corp.
(Note 2)
80
www.anpec.com.tw2
Rev. A.2 - Mar., 2013
Unit
o
C/W
APL3533
Recommended Operating Conditions
Symbol
V
BIAS Input Voltage 3.0 ~ 5.5 V
BIAS
V
, V
IN1
VIN1, VIN2 Input Voltage 0.8 ~ 5.5 V
IN2
I
VOUT1 or VOUT2 Output Current (single channel) 0 ~ 6 A
OUT
PD Maximum Power Dissipation, TA=50oC
ParameterRangeUnit
(Note4)
0.94 W
(Note 3)
VIH EN1, EN2 Logic High Input Voltage 1.2 ~ 5.5 V
VIL EN1, EN2 Logic Low Input Voltage 0 ~ 0.4 V
TA Ambient Temperature -40 ~ 85
TJ Junction Temperature -40 ~ 125
Note 3 : Refer to the typical application circuit.
Note 4 : Refer to the thermal consideration on page 15.
Electrical Characteristics
Unless otherwise specified, these specifications apply over V
Typical values are at TA=25oC.
Symbol
Parameter Test Conditions
SUPPLY CURRENT
I
BIAS
ISD
BIAS Supply Current (both
channels)
BIAS Supply Current (single
channel)
BIAS Supply Current at
Shutdown
No load, V
No load, V
No load, V
No load, V
VIN Off-State Supply Current
I
OFF
(per channel)
No load, V
No load, V
No load, V
Reverse Leakage Current (per
channel)
V
EN1,2
=0V, V
UNDER-VOLTAGE LOCKOUT (UVLO)
Rising BIAS UVLO Threshold V
BIAS UVLO Hysteresis - 0.1 - V
rising 1.9 2.4 2.9 V
BIAS
POWER SWITCH
= V
IN1
IN2
= 0.8V~5.5V, V
EN1
= V
EN2=VBIAS
=5V and TA= -40~85oC.
APL3533
Min. Typ. Max.
=5V =V
BIAS
=5V, V
BIAS
=5V, V
BIAS
=5V, V
BIAS
=5V, V
BIAS
=5V, V
BIAS
=5V, V
BIAS
=0V - 0.1 16
IN1,2
=5V
EN1,2
EN1
EN1,2
EN1,2
EN1,2
EN1,2
EN1,2
=5V, V
=0V
EN2
=0V - - 2
=0V, V
=0V, V
=0V, V
=0V, V
=5V - 0.1 8
IN1,2
=3.3V - 0.1 3
IN1,2
=1.8V - 0.1 2
IN1,2
=0.8V - 0.1 1
IN1,2
-
-
60 90
50 -
o
C
o
C
Unit
µA
µA
µA
µA
µA
µA
µA
µA
I
=200mA, TJ= 25oC
R
DS(ON)
Power Switch On Resistance
VOUT Discharge Resistance V
OUT
I
=200mA, TJ= -40~125oC
OUT
I
=200mA, TJ= 25oC
OUT
I
=200mA, TJ= -40~125oC
OUT
=0V, VOUT1 or VOUT2 force 1V - 150 180
EN1,2
Channel 1
Channel 2
- 16 18
-
- 24
- 16 18
-
- 24
mΩ
mΩ
mΩ
mΩ
Ω
Copyright ANPEC Electronics Corp.
www.anpec.com.tw3
Rev. A.2 - Mar., 2013
APL3533
, EN2=low, measured at
Electrical Characteristics
Unless otherwise specified, these specifications apply over V
Typical values are at TA=25oC.