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
SOT23-5 and SC70-5 Packages
Lead Free 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 controlled short-circuit current. The
APL5312 regulator come in a miniature SOT23-5 and
SC70-5 package.
Pin Configuration
SOT23-5/
SC70-5
V
IN
1
2
3
4
BP
5
V
OUT
Applications
•
•
•
•
Cellular Phones
Portable and Battery-Powered Equipment
Wireless LANs
GPS
GND
SHDN
APL5312
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.1 - Sep., 2005
1
www.anpec.com.tw
APL5312
Ordering and Marking Information
APL5312
Lead Free Code
Handling Code
Temp. Range
Package Code
Voltage Code
Package Code
B : SOT23-5
S5 : SC70-5
Operating Ambient Temp. Range
I : -40 to 85
°
C
Handling Code
TR : Tape & Reel
Voltage Code
15 : 1.5V
30 : 3.0V
Lead Free Code
L : Lead Free Device
Blank : Original 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 and compatible with both SnPb and lead-free soldiering
operations. 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.
SOT23-5 packages
Product Name Marking Product Name Marking Product Name Marking Product Name Marking
APL5312-15/B 339X
APL5312-16/B 33AX APL5312-17/B 33BX APL5312-18/B
33CX
APL5312-19/B 33DX APL5312-20/B 33EX APL5312-21/B 33FX APL5312-22/B
33GX
APL5312-23/B 33HX APL5312-24/B
33IX APL5312-25/B 33JX APL5312-26/B
33KX
APL5312-27/B 33LX
APL5312-28/B 33MX APL5312-29/B 33NX APL5312-30/B
33OX
APL5312-31/B 33PX APL5312-32/B 33QX APL5312-33/B 33RX APL5312-34/B
33SX
APL5312-35/B 33TX APL5312-285/B 33αX
SC70-5 packages
Product Name Marking Product Name Marking
APL5312-15/S5
339 APL5312-16/S5 33A
APL5312-19/S5
33D APL5312-20/S5 33E
APL5312-23/S5
33H APL5312-24/S5
33I
APL5312-27/S5
33L APL5312-28/S5 33M
APL5312-31/S5
33P APL5312-32/S5 33Q
APL5312-35/S5
33T APL5312-285/S 33
α
5
Product Name Marking Product Name Marking
APL5312-17/S5
33B APL5312-18/S5 33C
APL5312-21/S5
33F
APL5312-22/S5 33G
APL5312-25/S5
33J
APL5312-26/S5 33K
APL5312-29/S5
33N APL5312-30/S5 33O
APL5312-33/S5
33R APL5312-34/S5 33S
Pin Description
PIN
No.
1
2
3
4
5
Name
V
IN
GND
SHDN
BP
V
OUT
I/O
I
I
I
O
Description
Voltage supply input pin
GND pin
Shutdown control pin, low = off, high = normal
Bypass signal pin in fixed output type device
Regulator output pin
2
www.anpec.com.tw
Copyright
©
ANPEC Electronics Corp.
Rev. A.1 - Sep., 2005
APL5312
Block Diagram
V
IN
Thermal Shutdown
& Current Limit
SHDN
Shutdown
BP
VREF
_
MOS Driver
+
V
OUT
GND
Absolute Maximum Ratings
Symbol
V
IN
, V
OUT
Parameter
Input Voltage or Out Voltage
Thermal Resistance-Junction to Ambient (Note)
SOT23-5
SC70-5
Power Dissipation, T
A
= 25° (Note)
C
SOT23-5
SC70-5
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10 second)
Rating
6.5
6.5
240
325
410
310
0 to 125
-65 to +150
260
Unit
V
V
°
/W
C
SHDN/BP V
OUT
Shutdown Control Pin/Bypass Signal Pin
R
TH,JA
PD
T
J
T
STG
T
L
mW
°
C
°
C
°
C
Note: When mounted on a (Copper foil area 50%, 45x45x1.6tmm) glass epoxy board.
Copyright
©
ANPEC Electronics Corp.
Rev. A.1 - Sep., 2005
3
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
= 1
µ
F,
T
A
= -40 to 85
°
C .Typical values refer to T
A
= 25
°
C.
Symbol
V
IN
V
OUT
I
LIMIT
I
Q
I
OUT
Parameter
Input Voltage
Output Voltage Accuracy
Output Voltage Range
Circuit Current Limit
Quiescent Current
Load Current
V
IN
= 5V
Test Condition
APL5312
Min.
2.3
-2
1.5
450
500
120
120
300
0.1
0.8
520
430
290
73
74
55
50
36
1.6
-0.3
0.1
0.1
100
160
20
100
1
0.025
1
V
IN
+0.3
0.4
1
1
Typ.
Max.
6
2
3.5
550
160
160
0.3
1.5
680
560
380
Unit
V
%
V
mA
µA
mA
%
%
I
OUT
= 0mA
I
OUT
= 300mA
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
OUT
= 2V, I
OUT
= 300mA
V
OUT
= 3V, I
OUT
= 300mA
f = 1kHz, C
BP
=10nF, I
OUT
=10mA
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
REG
LINE
Line Regulation
REG
LOAD
Load Regulation
V
DROP
Dropout Voltage (Note)
mV
PSRR
Ripple Rejection
dB
I
SHORT
Short Current
Noise
High Threshold Voltage
Low Threshold Voltage
mA
µV
RMS
V
µ
A
µ
A
µ
S
°
C
°
C
ppm/
°
C
µF
Ω
e
n
V
SHDN
I
SHDN
I
QSHDN
T
EXIT
OTS
Shutdown Input Bias Current V
SHDN
= V
IN
SHDN = Low,
Shutdown Supply Current
V
IN
= V
OUT
+1V
Shutdown Exit Delay
V
OUT
= 90%, R
LOAD
= 50
Ω
Over Temperature Shutdown
Over Temperature Shutdown
Hysteresis
Output Voltage Temperature
T
J
= -40~125°
C
Coefficient
Output Capacitor
ESR
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.1 - Sep., 2005
4
www.anpec.com.tw
APL5312
Typical Application Circuit
V
IN
SHDN
C
IN
1
µ
F
GND
V
OUT
BP
C
OUT
C
BP
10 nF
1
µ
F
Typical Characteristics
Quiescent Current vs. Ambient Temperature
125
180
160
140
120
Quiescent Current vs. Output Current
Quiescent Current (uA)
Quiescent Current (uA)
120
115
V
IN
=5.5V
110
V
IN
=4.5V
100
80
60
105
100
-40
-15
10
35
60
85
0
50
100
150
200
250
300
Ambient Temperature (
°
C)
Output Current (mA)
Copyright
©
ANPEC Electronics Corp.
Rev. A.1 - Sep., 2005
5
www.anpec.com.tw
京公网安备 11010802033920号
EEWORLD
