APL5312
Ultra-Low-Noise, High PSRR, Low-Dropout, 300mA Linear Regulator
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
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 SC-70-5 Packages
Lead Free and Green Devices Available
(RoHS Compliant)
General Description
The APL5312 is an ultra low noise, low dropout linear
regulator, which operates from 2.3V to 6V input voltage
and delivers 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 maintains a low supply current, indepen-
dent of the load current and dropout voltage. Other fea-
tures include thermal-shutdown protection and current-
limit protection to ensure specified output current and
controlled short-circuit current. The APL5312 regulator
comes in a miniature SOT-23-5 and SC-70-5 package.
Pin Configuration
SOT-23-5/SC-70-5
Applications
•
•
•
•
Cellular Phones
Portable and Battery-Powered Equipment
Wireless LANs
GPS
VIN
GND
SHDN
1
2
3
5
VOUT
4
BP
APL5312
Ordering and Marking Information
APL5312
Assembly Material
Handling Code
Temperature Range
Package Code
Voltage Code
Package Code
B : SOT-23-5 S5 : SC-70-5
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
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.4 - Jun., 2009
1
www.anpec.com.tw
APL5312
Ordering and Marking Information (Cont.)
SOT-23-5 packages
Product Name Marking
APL5312-15B
APL5312-19B
APL5312-23B
APL5312-27B
APL5312-31B
APL5312-35B
SC-70-5 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
33dX
Product Name Marking
APL5312-17B
APL5312-21B
APL5312-25B
APL5312-29B
APL5312-33B
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
33d
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
T
J
T
STG
T
SDR
Input Voltage or Out Voltage
(Note 1)
Rating
6.5
6.5
0 to 125
-65 to +150
260
Unit
V
V
°
C
°
C
°
C
Parameter
VOUT Shutdown Control Pin/Bypass Signal Pin
Operating Junction Temperature
Storage Temperature Range
Maximum Lead Temperature Soldering, 10 Seconds
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Thermal Characteristics
Symbol
θ
JA
Parameter
Thermal Resistance-Junction to Ambient
(Note 2)
SOT-23-5
SC-70-5
Power Dissipation, T
A
= 25
o
C
(Note 3)
P
D
SOT-23-5
SC-70-5
410
310
mW
240
325
Rating
Unit
o
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 : When mounted on a (Copper foil area 50%, 45x45x1.6tmm) glass epoxy board.
Copyright
©
ANPEC Electronics Corp.
Rev. A.4 - Jun., 2009
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
I
LIMIT
I
Q
I
OUT
REG
LINE
REG
LOAD
Circuit Current Limit
Quiescent Current
Load Current
Line Regulation
Load Regulation
Dropout Voltage
(Note 4)
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
V
DROP
V
OUT
= 2V, I
OUT
= 300mA
V
OUT
= 3V, I
OUT
= 300mA
f = 1kHz, C
BP
=10nF, I
OUT
=10mA
PSRR
Ripple Rejection
f = 10kHz, C
BP
=10nF, I
OUT
= 10mA
f = 100kHz, C
BP
= 10nF, I
OUT
= 10mA
I
SHORT
Short Current
Noise
High Threshold Voltage
V
SHDN
I
SHDN
I
QSHDN
T
EXIT
OTS
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
-0.3
-
-
-
-
-
-
-
0.025
-
0.1
0.1
100
160
20
100
1
-
0.4
1
1
-
-
-
-
-
1
V
OUT
= 0V
f = 100Hz to 100kHz, C
BP
= 10nF,
I
OUT
= 10mA
I
OUT
= 0mA
I
OUT
= 300mA
V
IN
= 5V
Test Conditions
APL5312
Min.
2.3
-2
1.5
450
-
-
-
-
-
-
-
-
-
-
-
-
-
1.6
Typ.
-
-
-
500
120
120
300
0.1
0.8
520
430
290
73
74
55
50
36
-
Max.
6
2
3.5
550
160
160
-
0.3
1.5
680
560
380
-
-
-
-
-
V
IN
+0.3
V
µA
µA
µS
°
C
°
C
ppm/°
C
µF
Ω
mA
µV
RMS
dB
mV
Unit
V
%
V
mA
µA
mA
%
%
TC
C
OUT
Note 4 : 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.4 - Jun., 2009
3
www.anpec.com.tw
APL5312
Typical Operating Characteristics
Quiescent Current vs. Ambient Temperature
125
Quiescent Current vs. Output Current
180
160
Quiescent Current (µA)
Quiescent Current (µA)
120
140
120
115
V
IN
=5.5V
V
IN
=4.5V
110
100
80
60
105
100
-40
-15
10
35
60
85
0
50
Ambient Temperature (°C)
100
150 200
Output Current (mA)
250
300
Quiescent Current vs. Input Voltage
200
180
160
Quiescent Current (µA)
Droput Voltage (mv)
400
350
300
250
200
150
100
50
Dropout Voltage vs.Output Current
V
OUT
=2.5V
140
120
100
80
60
40
20
0
0
1
2
3
4
5
6
T
A
=85
o
C
T
A
=25
o
C
0
0
50
100
150
200
250
300
Input Voltage (V)
Output Current (mA)
140
120
Dropout Voltage vs. Output Current
600
500
Shutdown Exit Delay
Shutdown Exit Delay (µs)
Dropout Voltage (mV)
400
300
200
100
0
100
80
60
40
20
0
1.5
V
OUT
=1.5V
C
BP
=10nF
V
OUT
=2.2V
V
OUT
=3.3V
0
50
100
150
200
Output Current (mA)
250
300
1.8
2.1
2.4
2.7
Output Voltage (V)
3
3.3
Copyright
©
ANPEC Electronics Corp.
Rev. A.4 - Jun., 2009
4
www.anpec.com.tw
APL5312
Typical Operating Characteristics (Cont.)
PSRR vs. Frequency
560
Current Limit vs. Input Voltage
540
520
T
A
=25
o
C
-20
-30
-40
I
OUT
=10mA
Current Limit (mA)
PSRR (dB)
-50
-60
-70
-80
-90
-100
-110
20
100
1k
10k
100k 200k
500
480
460
440
420
400
4
4.5
5
5.5
6
T
A
=85
o
C
V
IN
=5V
V
IN
=4.5V
Frequency (Hz)
Input Voltage (V)
Output Noise vs. BP Capacitance
160
450
Maximun Power Dissipation vs. Ambient
Temperature
SOT-23-5
Maximum Power Dissipation (mW)
140
400
350
300
250
200
150
100
50
0
0
25
50
75
100
125
Output Noise (µV
RMS
)
120
100
80
60
40
20
0
1
I
OUT
=10mA
I
OUT
=100mA
SC-70-5
10
100
BP Capacitance (nF)
100
Ambient Temperature (°C)
Region of Stable C
OUT
ESR vs. Load Current
V
OUT
=2.5V
C
IN
=C
OUT
=1µF, Y5V
10
C
OUT
ESR (Ω)
Instable
1
0.1
Stable
0.01
Instable
0
50
100
150
200
Output Current (mA)
250
300
Copyright
©
ANPEC Electronics Corp.
Rev. A.4 - Jun., 2009
5
www.anpec.com.tw
