APL5312
Ultra-Low-Noise, High PSRR, Low-Dropout, 300mA Linear Regulator
Features
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Wide Operating Voltage: 2.3V~6V
Low Dropout Voltage: 290mV @ 3V/300mA
Fixed Output Voltages: 1.5V~3.5V
with step 100mV, 2.85V
Guaranteed 300mA Output Current
High PSRR: 74dB before 10kHz
Low Output Noise: 36µV
RMS
at 100Hz
to 100kHz
Current Limit Protection
Controlled Short Circuit Current: 50mA
Over Temperature Protection
Stable with 1µF Capacitor for Any Load
Excellent Load/Line Transient
SOT-23-5 and SC70-5 Packages
Lead Free and Green Devices Available
(RoHS Compliant)
General Description
The APL5312 is a ultra low noise, low dropout linear
regulator, which operate from 2.3V to 6V input voltage
and deliver up to 300mA. Typical dropout voltage is only
290mV at 300mA loading. Designed for use in RF
applications, the high PSRR 74dB and low noise 36µV
RMS
makes it an ideal choice.
Design with an internal P-channel MOSET pass element,
the APL5312 maintain a low supply current, independent
of the load current and dropout voltage. Other features
include thermal-shutdown protection and current limit
protection to ensure specified output current and con-
trolled short-circuit current. The APL5312 regulator come
in a miniature SOT-23-5 and SC70-5 package.
Pin Configuration
SOT-23-5
SC70-5
VIN
1
5
VOUT
Applications
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•
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Cellular Phones
GND
Portable and Battery-Powered Equipment
Wireless LANs
GPS
SHDN
2
4
BP
3
APL5312
Ordering and Marking Information
APL5312
Assembly Material
Handling Code
Temperature Range
Package Code
Voltage Code
Package Code
B : SOT23-5
S5 : SC70-5
Operating Ambient Temperature Range
I : -40 to 85
o
C
Handling Code
TR : Tape & Reel
Voltage Code
15 : 1.5V
30 : 3.0V
Assembly Material
L : Lead Free Device
G : Halogen and Lead Free Device
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).
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.3 - Feb., 2008
1
www.anpec.com.tw
APL5312
Ordering and Marking Information (Cont.)
SOT23-5 packages
Product Name Marking
APL5312-15B
APL5312-19B
APL5312-23B
APL5312-27B
APL5312-31B
APL5312-35B
SC70-5 packages
Product Name
APL5312-15S5
APL5312-19S5
APL5312-23S5
APL5312-27S5
APL5312-31S5
APL5312-35S5
Marking
339
33D
33H
33L
33P
33T
Product Name
APL5312-16B
APL5312-20B
APL5312-24B
APL5312-28B
APL5312-32B
APL5312-285B
Marking
33AX
33EX
33IX
33MX
33QX
33αX
Product Name
APL5312-17B
APL5312-21B
APL5312-25B
APL5312-29B
APL5312-33B
Marking
33BX
33FX
33JX
33NX
33RX
Product Name
APL5312-18B
APL5312-22B
APL5312-26B
APL5312-30B
APL5312-34B
Marking
33CX
33GX
33KX
33OX
33SX
339X
33DX
33HX
33LX
33PX
33TX
Product Name
APL5312-16S5
APL5312-20S5
APL5312-24S5
APL5312-28S5
APL5312-32S5
APL5312-285S5
Marking
33A
33E
33I
33M
33Q
33α
Product Name
APL5312-17S5
APL5312-21S5
APL5312-25S5
APL5312-29S5
APL5312-33S5
Marking
33B
33F
33J
33N
33R
Product Name
APL5312-18S5
APL5312-22S5
APL5312-26S5
APL5312-30S5
APL5312-34S5
Marking
33C
33G
33K
33O
33S
Absolute Maximum Ratings
Symbol
V
IN
, V
OUT
SHDN/BP
R
TH,JA
Power Dissipation, T
A
= 25° (Note)
C
P
D
T
J
T
STG
T
SDR
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10 second)
SOT23-5
SC70-5
410
310
0 to 125
-65 to +150
260
mW
C
°
°
C
°
C
Parameter
Input Voltage or Out Voltage
VOUT Shutdown Control Pin/Bypass Signal Pin
Thermal Resistance-Junction to Ambient (Note)
SOT23-5
SC70-5
240
325
°
/W
C
Rating
6.5
6.5
Unit
V
V
Note: When mounted on a (Copper foil area 50%, 45x45x1.6tmm) glass epoxy board.
Copyright
©
ANPEC Electronics Corp.
Rev. A.3 - Feb., 2008
2
www.anpec.com.tw
APL5312
Electrical Characteristics
Unless otherwise noted these specifications apply over full temperature, V
IN
= V
OUT
+1V, C
IN
= C
OUT
= 1µ F,
T
A
= -40 to 85°C .Typical values refer to T
A
= 25°C.
Symbol
V
IN
V
OUT
Parameter
Input Voltage
Output Voltage Accuracy
Output Voltage Range
V
IN
= 5V
Test Condition
Min.
2.3
-2
1.5
450
APL5312
Typ.
Max.
6
2
3.5
500
120
120
300
550
160
160
Unit
V
%
V
mA
µA
mA
I
LIMIT
I
Q
I
OUT
REG
LINE
REG
LOAD
Circuit Current Limit
Quiescent Current
Load Current
Line Regulation
Load Regulation
V
OUT
+0.5V<V
IN
<6V, I
OUT
= 10mA
V
IN
= V
OUT
+1V,
0mA<I
OUT
<300mA
V
OUT
=1.5V, I
OUT
= 300mA
I
OUT
= 0mA
I
OUT
= 300mA
0.1
0.8
520
430
290
73
74
55
50
36
1.6
-0.3
0.3
1.5
680
560
380
%
%
V
DROP
Dropout Voltage (Note)
V
OUT
= 2V, I
OUT
= 300mA
V
OUT
= 3V, I
OUT
= 300mA
f = 1kHz, C
BP
=10nF, I
OUT
=10mA
mV
PSRR
Ripple Rejection
f = 10kHz, C
BP
=10nF,
I
OUT
= 10mA
f = 100kHz, C
BP
= 10nF,
I
OUT
= 10mA
V
OUT
= 0V
f = 100Hz to 100kHz,
C
BP
= 10nF, I
OUT
= 10mA
dB
I
SHORT
Short Current
Noise
mA
µV
RMS
V
IN
+0.3
0.4
V
µA
µA
µS
°
C
°
C
ppm/
°
C
µF
1
Ω
V
SHDN
I
SHDN
I
QSHDN
T
EXIT
OTS
High Threshold Voltage
Low Threshold Voltage
Shutdown Input Bias Current
Shutdown Supply Current
Shutdown Exit Delay
Over Temperature Shutdown
Over Temperature Shutdown
Hysteresis
Output Voltage Temperature
Coefficient
Output Capacitor
ESR
T
J
= -40~125°
C
V
SHDN
= V
IN
SHDN = Low,
V
IN
= V
OUT
+1V
V
OUT
= 90%, R
LOAD
= 50Ω
0.1
0.1
100
160
20
100
1
0.025
1
1
TC
C
OUT
Note: Dropout voltage definition: V
IN
-V
OUT
when V
OUT
is 2% below the value of V
OUT
for V
IN
= V
OUT
+1V.
Copyright
©
ANPEC Electronics Corp.
Rev. A.3 - Feb., 2008
3
www.anpec.com.tw
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