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Anpec Electronics

APL5337 Datasheet Preview

APL5337 Datasheet

Fast Transient Response Linear Regulator

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APL5337
Source and Sink, 2A, Fast Transient Response Linear Regulator
Features
General Description
Provide Bi-direction Current
- Sourcing or Sinking Current Up to 2A
Built-in Soft-Start
Power-On-Reset Monitoring on VCNTL Pins
Fast Transient Response
Stable with Ceramic Output Capacitors
±10mV 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)
Applications
DDRII/III/IV SDRAM Termination Voltage
Motherboard and VGA Card Power Supplies
Setop Box
Low Power DDR3 DDRIII/IV
The APL5337 linear regulator is designed to provide a
regulated voltage with bi-direction output current for DDR-
SDRAM termination voltage. The APL5337 integrates two
power transistors to source or sink load current up to 2A.
It also features internal soft-start, current-limit, thermal
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 APL5337 is regulated to track the
voltage on VREF pin. A 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 an 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 APL5337 will be high impedance after being shut down
by VREF or the thermal shutdown function.
Pin Configuration
Simplified Application Circuit
VCNTL
+5V
VIN
+1.8V/+1.5V
Shutdown
Enable
1 VIN VCNTL 6
APL5337
3 VREF VOUT 4
GND
2
VOUT
0.9V / 0.75V
VIN 1
GND 2
VREF 3
VOUT 4
Top View of SOP-8
8 VCNTL
7 VCNTL
6 VCNTL
5 VCNTL
VIN 1
GND 2
VREF 3
VOUT 4
8 NC
7 NC
6 VCNTL
5 NC
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.
1
Rev. A.6 - Aug., 2017
www.anpec.com.tw




Anpec Electronics

APL5337 Datasheet Preview

APL5337 Datasheet

Fast Transient Response Linear Regulator

No Preview Available !

APL5337
Ordering and Marking Information
APL5337
APL5337 K:
APL5337
XXXXX
Assembly Material
Handling Code
Temperature Range
Package Code
Package Code
K : SOP-8 KA : SOP-8P
Operating Ambient Temperature Range
I : -40 to 85 oC
Handling Code
TR : Tape & Reel
Assembly Material
G : Halogen and Lead Free Device
XXXXX - Date Code
APL5337
APL5337 KA: XXXXX
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. 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 Greento 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)
S ymbo l
VCN TL
V IN
V REF
VOUT
PD(MAX)
P arame ter
VCNTL Sup ply Vol tag e (VCNTL to G ND)
VIN Sup ply Vo ltag e ( VIN to G ND)
VREF Inp ut Voltage (VREF to GND)
VOUT Output Voltage (V OUT to GND)
Ma ximum Po we r Dissipation , TA=25oC
TJ
TSTG
T SDR
Ju nction Tempe rature
Stora ge Te mperature Ran ge
Ma ximum Le ad Sold ering Temper atu re, 1 0 Seconds
SOP -8
SOP- 8P
Rating
-0 .3 ~ 7
-0 .3 ~ 5
-0 .3 ~ 7
-0 .3 ~ V IN+0.3V
1.5
2.2
150
- 65 ~ 150
260
Unit
V
V
V
V
W
oC
oC
oC
Note1: Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are
stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recom-
mended operating conditions" is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device
reliability.
Thermal Characteristics
Symbol
Parameter
Typical Value
Unit
Junction-to-Ambient Thermal Resistance in Free Air (Note 2)
θJA
SOP-8
80
SOP-8P
55
°C/W
θJC
Junction-to-Case Thermal Resistance in Free Air (Note 3)
SOP-8P
7
oC/W
Note 2: θJA 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.
Copyright © ANPEC Electronics Corp.
2
Rev. A.6 - Aug., 2017
www.anpec.com.tw


Part Number APL5337
Description Fast Transient Response Linear Regulator
Maker Anpec Electronics
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APL5337 Datasheet PDF






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