APL5336
Source and Sink, 1.5A, Fast Transient Response Linear Regulator
Features
•
•
•
•
•
•
•
•
•
•
•
•
Provide Bi-direction Output Currents
-Sourcing
and Sinking Current up to 1.5A
Built-in Soft-Start
Power-On-Reset Monitoring on VCNTL and VIN
pins
Fast Transient Response
Stable with Ceramic Output Capacitors
±20mV High System Output Accuracy over Load
and Temperature Ranges
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 Exposed Pad
(SOP-8P) Packages
Lead Free and Green Devices Available
(RoHS Compliant)
General Description
The APL5336 linear regulator is designed to provide a
regulated voltage with bi-direction output current for DDR-
SDRAM termination voltage. The APL5336 integrates two
power transistors to source or sink load current up to
1.5A. It also features internal soft-start, current-limit, ther-
mal shutdown and enable control functions into a single
chip.
The internal soft-start controls the rising rate of the output
voltage to prevent inrush current during start-up. The
current-limit circuit detects the output current and limits
the current during short-circuit or current overload
conditions. The on-chip thermal shutdown provides ther-
mal protection against any combination of overload that
would create excessive junction temperatures.
The output voltage of APL5336 is regulated to track the
voltage on VREF pin. An proper resistor divider connected
to VIN, GND, and VREF pins is used to provide a half
voltage of VIN to VREF pin. In addition, connect an exter-
nal ceramic capacitor and a open-drain transistor to VREF
pin for external soft-start and shutdown control.
Pulling and holding the voltage on VREF below the en-
able voltage threshold shuts down the output. The output
of APL5336 will be high impedance after being shut down
by VREF or the thermal shutdown function.
Applications
•
•
•
•
DDRII/III SDRAM Termination Voltage
Motherboard and VGA Card Power Supplies
Setop Box
SSTL-2/3 Termination Voltage
Pin Configuration
VIN 1
GND 2
VREF 3
VOUT 4
8 VCNTL
7 VCNTL
6 VCNTL
5 VCNTL
Simplified Application Circuit
V
CNTL
+5V
V
IN
+1.8V/+1.5V
1
VIN
VCNTL
6
Top View of SOP-8
V
OUT
0.9V / 0.75V
3
APL5336
VREF
VOUT
GND
2
4
VIN 1
GND 2
VREF 3
VOUT 4
8 NC
7 NC
6 VCNTL
5 NC
Shutdown
Enable
Top View of SOP-8P
Exposed Pad (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.2 - Apr., 2008
1
www.anpec.com.tw
APL5336
Ordering and Marking Information
APL5336
Assembly Material
Handling Code
Temperature Range
Package Code
Package Code
K : SOP-8
KA : SOP-8P
Operating Ambient Temperature Range
I : -40 to 85
°
C
Handling Code
TR : Tape & Reel
Assembly Material
L : Lead Free Device G : Halogen and Lead Free Device
XXXXX - Date Code
APL5336 K:
APL5336
XXXXX
APL5336 KA:
APL5336
XXXXX
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-020C 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
Symbol
V
CNTL
V
IN
V
REF
V
OUT
P
D
T
J
T
STG
T
SDR
(Note 1)
Rating
-0.3 ~ 7
-0.3 ~ 7
-0.3 ~ 7
-0.3 ~ V
IN
+0.3V
Internally Limited
150
-65 ~ 150
260
Unit
V
V
V
V
W
o
Parameter
VCNTL Supply Voltage (VCNTL to GND)
VIN Supply Voltage (VIN to GND)
VREF Input Voltage (VREF to GND)
VOUT Output Voltage (VOUT to GND)
Power Dissipation
Junction Temperature
Storage Temperature Range
Maximum Lead Soldering Temperature, 10 Seconds
C
C
o
o
C
Note 1: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device.
Thermal Characteristics
Symbol
Parameter
Junction-to-Ambient Thermal Resistance in Free Air
(Note 2)
Rating
SOP-8
SOP-8P
80
55
Unit
°C/W
θ
JA
θ
JC
Junction-to-Case Thermal Resistance in Free Air
(Note 3)
o
SOP-8P
20
C/W
Note 2:
θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air.
Note 3: The exposed pad of SOP-8P is soldered directly on the PCB. The case temperature is measured at the center of the exposed pad on the underside
of the SOP-8P package.
Recommended Operating Conditions
Symbol
V
CNTL
V
IN
V
REF
V
OUT
VCNTL Supply Voltage
VIN Supply Voltage
VREF Input Voltage
VOUT Output Voltage
Parameter
Range
3.0 ~ 5.5
1.2 ~ 5.5
0.7 ~ V
CNTL
– 2.2
V
REF
±
0.02
Unit
V
V
V
V
Copyright
©
ANPEC Electronics Corp.
Rev. A.2 - Apr., 2008
2
www.anpec.com.tw
APL5336
Recommended Operating Conditions (Cont.)
Symbol
I
OUT
C
IN
VOUT Output Current
(Note 4)
Parameter
Range
-1.5 ~ +1.5
10 ~ 100
0 ~ 200
8 ~ 47
10 ~ 330
-40 ~ 85
-40 ~ 125
Unit
A
µF
mΩ
µF
µF
o
o
Capacitance of Input Capacitor
Equivalent Series Resistor (ESR) of Input Capacitor
C
OUT
Capacitance of Output Multi-layer Ceramic Capacitor (MLCC)
Total Output Capacitance
(Note 5)
T
A
T
J
Ambient Temperature
Junction Temperature
C
C
Note 4: The symbol “+” means the VOUT sources current to load; the symbol “-” means the VOUT sinks current from load to GND.
Note 5: It’ necessary to use a multi-layer ceramic capacitor 8µF at least as an output capacitor.
Please place the ceramic capacitor near VOUT pin
s
as close as possible.
Besides, the other kinds of capacitors (like Electrolytic, PoSCap, tantalum capacitors) can be used as the output
capacitors in parallel.
Electrical Characteristics
Refer to the typical application circuit. These specifications apply over V
CNTL
=5V, V
IN
=1.8V or 1.5V, V
REF
=0.5V
IN
, C
IN
=10µF, C
OUT
=10µF
(MLCC) and T
A
= -40~85°C, unless otherwise specified. Typical values are at T
A
=25°C.
Symbol
SUPPLY CURRENT
I
CNTL
I
VIN
Parameter
Test Conditions
APL5336
Min
-
-
-
Typ
1
-
-
Max
2
5
5
Unit
VCNTL Supply Current
VIN Supply Current at Shutdown
I
OUT
= 0A
V
REF
=0V (Shutdown)
VREF = GND (Shutdown)
mA
µA
µA
V
V
POWER-ON-RESET (POR)
Rising VCNTL POR Threshold
VCNTL POR Hysteresis
Rising VIN POR Threshold
VIN POR Hysteresis
OUTPUT VOLTAGE
V
OUT
VOUT Output Voltage
System Accuracy
V
OS
VOUT Offset Voltage
(V
OUT
-V
REF
)
Load Regulation
I
OUT
=0A, V
REF
=0.7V ~ 2.8V
Over temperature and load current
ranges
I
OUT
=+10mA
I
OUT
=-10mA
I
OUT
=+10mA ~ +1.5A
I
OUT
=-10mA ~ -1.5A
-
-20
-7
-
-13
-
V
REF
-
-1
+8
-8
+4
-
20
-
+12
-
+8
V
mV
mV
V
IN
Rising
V
CNTL
Rising
2.5
-
0.7
-
2.75
0.35
0.9
0.3
2.9
-
1.05
-
V
mV
Copyright
©
ANPEC Electronics Corp.
Rev. A.2 - Apr., 2008
3
www.anpec.com.tw
APL5336
Electrical Characteristics (Cont.)
Refer to the typical application circuit. These specifications apply over V
CNTL
=5V, V
IN
=1.8V or 1.5V, V
REF
=0.5V
IN
, C
IN
=10µF, C
OUT
=10µF
(MLCC) and T
A
= -40~85°C, unless otherwise specified. Typical values are at T
A
=25°C.
Symbol
PROTECTIONS
Parameter
Test Conditions
APL5336
Min
1.8
1.6
-2
-1.6
1.6
1.1
-1.6
-1.1
-
-
0.15
-100
0.1
Typ
2
-
-2.2
-
1.8
-
-1.8
-
150
40
0.3
-
0.2
Max
3
-
-3
-
2.6
-
-2.6
-
-
-
0.4
+100
0.4
Unit
Sourcing Current
(V
IN
=1.8V)
Sinking Current
(V
IN
=1.8V)
I
LIM
Current-Limit
Sourcing Current
(V
IN
=1.5V)
Sinking Current
(V
IN
=1.5V)
T
SD
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
ENABLE and SOFT-START
VREF Enable Voltage Threshold
I
VREF
T
SS
VREF Bias Current
Soft-Start Interval
T
J
rising
T
J
=25
o
C
T
J
=125
o
C
T
J
=25 C
T
J
=125
o
C
T
J
=25
o
C
T
J
=125
o
C
T
J
=25 C
T
J
=125
o
C
o
o
A
A
o
C
V
nA
ms
Copyright
©
ANPEC Electronics Corp.
Rev. A.2 - Apr., 2008
4
www.anpec.com.tw
APL5336
Typical Operating Characteristics
VOUT Offset Voltage vs.
Junction Temperature
10
Sourcing Current-Limit vs.
Junction Temperature
3.5
3
VOUT Offset Voltage,V
OS
(mV)
8
6
Current-Limit,I
LIM
(A)
I
OUT
= -10mA
4
2
0
2.5
2
1.5
1
0.5
0
I
OUT
= 10mA
V
IN
=2.5V
V
IN
=1.8V
V
IN
=1.5V
Sourcing Current
V
REF
=0.5xV
IN
V
CNTL
=5V
-50
-25
0
25
50
75
100
125
-2
-4
-50
V
IN
=1.5V
-25
0
25
50
75
100
125
150
Junction Temperature (T
J
,
o
C)
Sinking Current-Limit vs.
Junction Temperature
4
3.5
Junction Temperature (T
J
,
o
C)
0
-10
VCNTL Power Supply
Rejection Ratio (PSRR)
V
CNTL
=5V, C
OUT
=10µF(MLCC)
V
REF
=0.5xV
IN
Current-Limit,I
LIM
(A)
2.5
2
1.5
1
0.5
0
-50
VCNTL PSRR (dB)
3
-20
-30
-40
-50
-60
-70
-80
1000
V
IN
=1.5V,I
OUT
=1.5A
V
IN
=1.5V,I
OUT
=0.5A
10000
100000
1000000
V
IN
=2.5V
V
IN
=1.8V
V
IN
=1.5V
Sinking Current
V
REF
=0.5xV
IN
V
CNTL
=5V
-25
0
25
50
75
100
125
V
IN
=2.5V,I
OUT
=1.5A
V
IN
=2.5V,I
OUT
=0.5A
Junction Temperature (T
J
,
o
C)
Frequency (HZ)
Sourcing Current-Limit vs.
Junction Temperature
2.5
3
Sinking Current-Limit vs.
Junction Temperature
Current-Limit,I
LIM
(A)
Current-Limit,I
LIM
(A)
2
V
IN
=1.8V
2.5
2
1.5
1.5
1
V
IN
=1.5V
V
IN
=1.8V
V
IN
=1.5V
1
0.5
0
Sourcing Current
V
REF
=0.5xV
IN
V
CNTL
=3.3V
-50
-25
0
25
50
75
100
125
0.5
Sinking Current
V
REF
=0.5xV
IN
V
CNTL
=3.3V
-50
-25
0
25
50
75
100
125
0
Junction Temperature (
o
C)
Junction Temperature (
o
C)
Copyright
©
ANPEC Electronics Corp.
Rev. A.2 - Apr., 2008
5
www.anpec.com.tw
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