600mA LOW DROPOUT LINEAR REGULATOR
600mA LOW DROPOUT LINEAR REGULATOR
General Description
The AP2315 is a series of low dropout three-terminal
regulators with a dropout of 1.1V at 600mA output cur-
rent.
This product has been optimized for low voltage where
transient response and minimum input voltage are criti-
cal. The AP2315 provides current limit and thermal
shutdown. Its circuit includes a trimmed bandgap refer-
ence to assure output voltage accuracy to be within
±1%.
On-chip thermal shutdown provides protection
against any combination of overload and ambient tem-
peratures that would create excessive junction tem-
peratures.
The AP2315 is available in 2.5V and 3.3V versions.
The fixed versions integrate the corresponding resistor
divider.
The AP2315 is available in the industry standard SOT-
89 power package.
Data Sheet
AP1117M
AP2315
Features
·
·
·
·
·
·
·
·
Low Dropout Voltage: 1.1V at 600mA Output
Current
Output Noise from 10Hz to 10KHz: 0.003% of
V
OUT
PSRR at I
OUT
=300mA and f=120Hz: 75dB
Output Voltage Accuracy:
±
1%
On-chip Thermal Shutdown
Maximum Quiescent Current
:
I
QMAX
=5mA
ESD (Human Body Model): 3.5KV
Operation Junction Temperature: -40 to 125
o
C
Applications
·
·
·
·
·
DVD/CD-ROM
USB Device
Add-on Card
DVD Player
PC Motherboard
SOT-89
Figure 1. Package Type of AP2315
Aug. 2008 Rev. 1. 2
1
BCD Semiconductor Manufacturing Limited
600mA LOW DROPOUT LINEAR REGULATOR
600mA LOW DROPOUT LINEAR REGULATOR
Pin Configuration
Data Sheet
AP1117M
AP2315
R Package
(SOT-89)
3
INPUT
2
GND (TAB)
1
OUTPUT
Figure 2. Pin Configuration of AP2315 (Top View)
Aug. 2008 Rev. 1. 2
2
BCD Semiconductor Manufacturing Limited
600mA LOW DROPOUT LINEAR REGULATOR
600mA LOW DROPOUT LINEAR REGULATOR
Functional Block Diagram
Data Sheet
AP1117M
AP2315
3
INPUT
Thermal
Protection
-
+
1
OUTPUT
2
GND (TAB)
Figure 3. Functional Block Diagram of AP2315
Aug. 2008 Rev. 1. 2
3
BCD Semiconductor Manufacturing Limited
600mA LOW DROPOUT LINEAR REGULATOR
600mA LOW DROPOUT LINEAR REGULATOR
Ordering Information
Data Sheet
AP1117M
AP2315
AP2315
Circuit Type
Package
R: SOT-89
-
E1: Lead Free
G1: Green
TR: Tape and Reel
2.5: Fixed Output 2.5V
3.3: Fixed Output 3.3V
Package
Temperature
Range
Part Number
Lead Free
AP2315R-2.5TRE1
Green
AP2315R-2.5TRG1
AP2315R-3.3TRG1
Marking ID
Lead Free
E27E
E27F
Packing Type
Green
G27E
G27F
Tape & Reel
Tape & Reel
SOT-89
-40 to 125
o
C
AP2315R-3.3TRE1
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with
"G1" suffix are available in green packages.
Aug. 2008 Rev. 1. 2
4
BCD Semiconductor Manufacturing Limited
600mA LOW DROPOUT LINEAR REGULATOR
600mA LOW DROPOUT LINEAR REGULATOR
Absolute Maximum Ratings (Note 1)
Parameter
Input Voltage
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10sec)
Thermal Resistance (Note 2)
ESD (Human Body Model)
ESD (Machine Model)
Symbol
V
IN
T
J
T
STG
T
LEAD
θ
JA
ESD
ESD
SOT-89
3500
350
Value
15
150
-65 to 150
260
165
Data Sheet
AP1117M
AP2315
Unit
V
o
C
o
C
o
C
o
C/W
V
V
Note 1: Stresses greater than 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 "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods
may affect device reliability.
Note 2: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifica-
tions do not apply when operating the device outside of its operating ratings. The maximum allowable power dissipation is a
function of the maximum junction temperature, T
J(max),
the junction-to-ambient thermal resistance,
θ
JA,
and the ambient tem-
perature, T
A.
The maximum allowable power dissipation at any ambient temperature is calculated using: P
D(max)
=(T
J(max)
-
T
A
)/θ
JA.
Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will
go into thermal shutdown.
Recommended Operating Conditions
Parameter
Input Voltage
Operating Junction Temperature Range
Symbol
V
IN
T
J
-40
Min
Max
12
125
Unit
V
o
C
Aug. 2008 Rev. 1. 2
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BCD Semiconductor Manufacturing Limited
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