APL5330
Dual Input 2A Low Dropout Regulator
Features
•
•
Fast Transient Response
High Output Accuracy
- ±20mV over Load, Output Voltage Offset and
Temperature
General Description
The APL5330 integrates a power transistor to provide
regulated voltage with maximum output current of 2A.
It also incorporates current-limit, thermal shutdown and
shutdown control functions into a single chip.
The current-limit circuit limits the maximum output
current in overload or short-circuit conditions.
The on-chip thermal shutdown provides protection
against any combination of overload that would create
excessive junction temperature. The output voltage of
the APL5330 tracks the reference voltage on VREF
pin. A resistor divider connected to VREF pin is
usually used to provide reference voltage to the IC. In
addition, an external ceramic capacitor and an open-drain
transistor connected to VREF pin provides soft-start and
shutdown control. Applying and holding a voltage below
0.35V (typ.) to VREF shuts off the output.
•
•
•
•
•
•
Adjustable Output Voltage by External
Resistors
Current-Limit Protection
On-Chip Thermal Shutdown
Shutdown for Standby or Suspend Mode
Simple SOP-8 and SOP-8 with Thermal Pad
Packages
Lead Free Available (RoHS Compliant)
Applications
•
•
VGA Card Power
Chip Set Power
Pin Configuration
VIN
GND
VREF
VOUT
1
2
3
4
8
7
6
5
VCNTL
VCNTL
VCNTL
VCNTL
VIN
GND
VREF
VOUT
1
2
3
4
8
7
6
5
NC
NC
VCNTL
NC
SOP-8 (Top View)
NC = No internal connection
= Thermal Pad
SOP-8-P (Top View)
(connected to GND plane for better heat dissipation)
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.
Copyright
©
ANPEC Electronics Corp.
Rev. A.1 - Jun., 2006
1
www.anpec.com.tw
APL5330
Ordering and Marking Information
APL5330
Lead Free Code
Handling Code
Temp. Range
Package Code
APL5330KE-TR :
APL5330KAE-TR :
APL5330
XXXXX
Package Code
K : SOP-8
KA : SOP-8-P
Operating Ambient Temp. Range
E : -20 to 70
°
C
Handling Code
TR : Tape & Reel
Lead Free Code
L : Lead Free Device Blank : Original Device
XXXXX - Date Code
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish;
which are fully compliant with RoHS and compatible with both SnPb and lead-free soldiering operations. ANPEC lead-free
products meet or exceed the lead-free requirements of IPC/JEDEC J STD-020C for MSL classification at lead-free peak
reflow temperature.
Pin Description
PIN NAME
VIN
GND
VCNTL
I/O
I
O
I
DESCRIPTION
Main power input pin. Connect this pin to a voltage source and an input
capacitor. The APL5330 provides current from VIN pin to VOUT pin by
controlling the NPN pass transistor.
Signal ground.
Power input pin for internal control circuitry. Connect this pin to a voltage source
to provide a bias for the internal control circuitry. A bypass capacitor is usually
connected near this pin.
Reference voltage input and active-low shutdown control pin. Connect this pin to
a resistor divider and a capacitor for soft-start and filtering noise purposes.
Pulling and holding the voltage on this pin low by an open-drain transistor shuts
down the output.
Output pin of the regulator. Connect this pin to load. Output capacitors
connected to this pin improves stability and transient response. The output
voltage tracks the reference voltage, and the output pin provides the maximum
current up to 2A.
VREF
I
VOUT
O
Block Diagram
VCNTL
VIN
VREF
Voltage
Regulation
Thermal
Limit
Current
Limit
VOUT
Shutdown
GND
Copyright
©
ANPEC Electronics Corp.
Rev. A.1 - Jun., 2006
2
www.anpec.com.tw
APL5330
Absolute Maximum Ratings
Symbol
V
CNTL
V
IN
P
D
T
J
T
STG
T
SDR
V
ESD
Parameter
VCNTL Supply Voltage, VCNTL to GND
VIN Supply Voltage, VIN to GND
Power Dissipation
Junction Temperature
Storage Temperature
Soldering Temperature, 10 Seconds
Minimum ESD Rating (Human Body Mode)
Rating
-0.2 ~ 7
-0.2 ~ 3.9
Internally Limited
150
-65 ~ 150
300
±3
Unit
V
V
W
o
o
o
C
C
C
kV
Thermal Characteristics
Symbol
θ
JA
θ
JC
Parameter
Junction-to-Ambient Thermal Resistance in Free Air
SOP-8
SOP-8-P
Junction-to-Case Thermal Resistance
SOP-8
SOP-8-P
Value
75
55
28
20
Unit
o
C/W
o
C/W
Note :
θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. The
exposed pad of SOP-8-P is soldered directly on the PCB.
Recommended Operating Conditions
Symbol
V
CNTL
V
IN
V
REF
V
OUT
I
OUT
T
J
Parameter
VCNTL Supply Voltage (Note 1)
VIN Supply Voltage (Note 2)
VREF Input Voltage
VOUT Output Voltage (Note 3)
VOUT Output Current (Note 4)
Junction Temperature
Range
3.1 ~ 6
1.2 ~ 3.5
0.8 ~ 3
V
REF
±
0.02
2
-20 ~ 125
Unit
V
V
V
V
A
o
C
Notes :
1. Please refer to the VCNTL-to-Vin Dropout Voltage in the “Typical Characteristics” section for the minimun
supply voltage on VCNTL.
2. Please supply enough voltage to VIN for providing desired maximum output current. Please refer to the VIN.
Dropout Voltage vs Output Current in the Typical Characteristics.
3. The VOUT is regulated to the V
REF
with additional voltage offset and load regulation except over-load
conditions.
4. The maximum I
OUT
varies with the T
J
and the voltages of V
IN
-V
OUT
and V
OUT
.
Copyright
©
ANPEC Electronics Corp.
Rev. A.1 - Jun., 2006
3
www.anpec.com.tw
APL5330
Electrical Characteristics
Refer to the typical application circuit. These specifications apply over V
CNTL
= 3.3V, V
IN
= 2V, V
REF
= 1.2V and T
A
= -20
to 70°C, unless otherwise specified. Typical values are at T
A
= 25°C.
Symbol
Parameter
Test Conditions
APL5330
Min
Typ
V
REF
-20
-8
-3
0.47
0.7
20
Max
Unit
OUTPUT VOLTAGE
V
OUT
VOUT Output Voltage
System Accuracy
Load Regulation
V
IN
Dropout Voltage
PROTECTION
I
LIM
T
SD
Current Limit
Thermal Shutdown
Rising T
J
Temperature
Thermal Shutdown Hysteresis
I
OUT
= 0A
I
CNTL
VCNTL Supply Current
I
OUT
= 2A (Normal Operation)
VREF = GND (Shutdown)
I
VREF
Normal operation
VREF Bias Current
(The current flows out of VREF) VREF = GND (Shutdown)
Shutdown Voltage Threshold
0.2
0.5
T
J
= 25
°
C
T
J
= 125
°
C
2.4
2.7
2.6
170
30
2
25
0.3
150
300
0.35
500
5000
0.65
nA
4
50
mA
A
o
o
I
OUT
= 0A
Over temperature, V
OUT
offset,
and load regulation
I
OUT
= 10mA to 2A
I
OUT
= 2A
V
mV
mV
V
C
C
INPUT CURRENT
SHUTDOWN CONTROL
V
Typical Application Circuit
V
CNTL
+3.3V
V
IN
+2V
VIN
VCNTL
R
1
3.5k
V
REF
VREF GND VOUT
V
OUT
1.2V/2A
C
OUT
330uF
Shutdown
R
2
2k
GND
C
SS
0.1uF
C
IN
47uF
C
CNTL
1uF
GND
V
OUT
=
V
REFIN
⋅
R
2
(V)
R
1
+
R
2
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Copyright
©
ANPEC Electronics Corp.
Rev. A.1 - Jun., 2006
4
APL5330
Typical Characteristics
Current-Limit
vs. Junction Temperature
3.5
V
IN
= 2V
2500
Quiescent VCNTL Current
vs. Junction Temperature
Quiescent VCNTL Current, I
CNTL
(µA)
I
OUT
= 0A
2000
3
V
OUT
=1.2V
Current-Limit, I
LIM
(A)
2.5
2
1.5
1
0.5
0
-50
V
CNTL
= 5V
V
CNTL
= 3.3V
1500
V
CNTL
= 5V
V
CNTL
= 3.3V
1000
500
-25
0
25
50
75
100
125
0
-50
-25
0
25
50
75
100
125
Junction Temperature (°C)
Junction Temperature (°C)
VREF Threshold Voltage
vs. Junction Temperature
0.6
V
CNTL
= 5V
VREF Bias Current
vs. V
REF
Supply Voltage
500
VREF Bias Current, I
VREF
(nA)
VREF Threshold Voltage (V)
450
400
350
300
250
200
150
100
50
0
0
0.5
1
1.5
2
2.5
3
0.5
0.4
0.3
0.2
0.1
0
-50
-25
0
25
50
75
100
125
V
CNTL
= 3.3V
V
CNTL
= 3.3V
V
CNTL
= 5V
Junction Temperature (°C)
V
REF
Supply Voltage (V)
Copyright
©
ANPEC Electronics Corp.
Rev. A.1 - Jun., 2006
5
www.anpec.com.tw
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