APL5301/2
Low I
Q
, Low Dropout 300mA Fixed Voltage Regulator
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Low Quiescent Current : 50uA (No load)
Low Dropout Voltage : 400mV
(VOUT(Nominal)=3.0V Version @300mA)
Very low Shutdown Current : < 0.5uA
Fixed Output Voltage : 1.3V ~ 5.0V
by step 0.1V increment
Stable with 1uF Output Capacitor
Stable with Aluminum, Tantalum or Ceramic
Capacitors .
Reverse Current Protection
No Protection Diodes Needed
Built in Thermal Protection
Built in Current Limit Protection
Controlled Short Circuit Current : 50mA
Fast Transient Response
Short Setting Time
SOP-8, SOT-23, SOT-23-5, SOT-89,
and SOT-89-5 Packages
General Description
The APL5301/2 series are micropower, low noise, low
dropout linear regulators, which operate from 3V to
6V input voltage and deliver up to 300mA. Typical
dropout voltage is only 260mV at 300mA loading. De-
signed for use in battery-powered system, the low 50uA
quiescent current makes it an ideal choice. Design
with an internal P-channel MOSFET pass transistor,
the APL5301/2 maintain a low supply current, inde-
pendent of the load current and dropout voltage.
Other features include reverse current protection, ther-
mal-shutdown protection, current limit protection to
ensure specified output current and controlled short-
circuit current. The APL5301/2 regulators come in a
miniature SOP-8, SOT-23, SOT-23-5, SOT-89 and
SOT-89-5 packages.
Pin Configuration
V
IN
3
1
2
V
OUT
1
2
3
T A B is V
IN
G ND
GND
V
IN
V
OUT
Applications
•
•
•
Notebook Computer
PDA or Portable Equipments
Noise-Sensitive Instrumentation Systems
SOT-23 (Top View)
APL5301
SOT-89 (Top View)
APL5301
BP
GND SHDN
V
OUT
GND
V
IN
1
2
3
5
BP
5
1
2
4
3
4
SHDN
V
OUT
G N D
V
IN
SOT-23-5 (Top View)
APL5301
SOT-89-5 (Top View)
APL5301
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.11 -Jan., 2004
1
www.anpec.com.tw
APL5301/2
Marking Information (Cont.)
SOT-23 and SOT-23-5 packages
Product Name
APL5301-32A/B
APL5301-33A/B
APL5301-34A/B
APL5301-35A/B
APL5301-48A/B
APL5301-49A/B
APL5301-50A/B
Marking
31QX
31RX
31SX
31TX
31XX
31YX
31ZX
Product Name
APL5302-32A/B
APL5302-33A/B
APL5302-34A/B
APL5302-35A/B
APL5302-48A/B
APL5302-49A/B
APL5302-50A/B
Marking
32QX
32RX
32SX
32TX
32XX
32YX
32ZX
The last character “X” in the marking is for data code.
Pin Description
No.
1
2
3
4
5
PIN
Name
V
IN
GND
SHDN
(Note1)
BP
(Note1)
V
OUT
I
O
O
I/O
I
Description
Supply voltage input.
Ground pins of the circuitry, and all ground pins must be soldered
To PCB with proper power dissipation.
Shutdown control pin, low = off, high = nromal.
Don’t leave open.
Bypass signal pin of the regulator.
Output pin of the regulator.
Note1 : This pin does not exist in 3-pin package.
Absolute Maximum Ratings
Symbol
V
IN
, V
OUT
SHDN
R
TH,JA
P
D
T
J
Parameter
Input Voltage or Out Voltage
Shutdown Control Pin
Thermal Resistance – Junction to Ambient
Power Dissipation
Operating Junction Temperature
Control Section
Power Transistor
T
STG
T
L
Storage Temperature Range
Lead Temperature (Soldering, 10 second)
Rating
6.5
6.5
357
Internally Limited
0 to 125
0 to 150
-65 to +150
260
°C
°C
Unit
V
V
°C/W
W
°C
Copyright
ANPEC Electronics Corp.
Rev. A.11 - Jan., 2004
3
www.anpec.com.tw
APL5301/2
Electrical Characteristics
Unless otherwise noted these specifications apply over full temperature, V
IN
=3.8V, C
IN
=C
OUT
=1uF, SHDN=V
IN
,
T
J
=0 to 125°C. Typical values refer to T
J
=25°C.
APL5301/2
Symbol
Parameter
Test Conditions
Unit
Min.
Typ. Max.
V
IN
V
OUT
I
LIMIT
Input Voltage
Output Voltage
Circuit Current Limit
2.7
V
OUT
+1.0V< V
CC
<6.0V, 0mA< I
OUT
V
OUT
-2%
V
IN
=V
OUT
+0.5V
V
OUT
=0V
V
IN
=V
OUT
+0.5V
V
OUT
+0.5V< V
CC
<6.0V,
I
OUT
=150mA
V
IN
=V
OUT
+0.5V, 0mA< I
OUT
< I
MAX
V
IN
= V
OUT
+0.5V ,
I
OUT
=1mA-150mA in 1us
1.3V≤V
OUT
<1.5V
1.5V≤V
OUT
<2.0V
I
OUT
=300mA 2.0V≤V
OUT
<2.5V
2.5V≤V
OUT
<3V
3V≤V
OUT
≤
5V
F≤1kHz, 1Vpp at V
IN
= V
OUT
+1.0V
No load
I
OUT
=300mA
Shutdown = low
I
OUT
=0, V
CC
=6.0V
100Hz<f<100kHz, typical load,
C
BP
=0.01uF, C
OUT
= 1uF
300
4
1
70
1.2
1
0.8
0.6
0.4
55
50
150
0.01
200
0.4
150
10
10
6
150
1.6
1.2
0.9
0.7
0.5
80
180
1
500
50
6.5
V
OUT
V
OUT
+2%
V
V
mA
mA
mA
mV
mV
mV
mV
I
SHORT
Short Current
I
OUT
Load Current
REG
LINE
Line Regulation
REG
LOA
Load Regulation
Load Transient
V
DROP
Dropout Voltage
(Note2)
V
PSRR Ripple Rejection
I
Q
Quiescent Current
Shutdown Supply
(Note3)
Current
Noise
45
dB
µA
µA
µVrms
ms
°C
°C
ppm/°C
2.6
1
2.5
µF
Ohm
V
Shutdown Recovery
C
BP
=0.01uF,C
OUT
=1uF, no load
(Note3)
Delay
OTS Over Temperature Shutdown
Over Temperature Shutdown
Hysteries
Hysteresis
TC
Output Voltage Temperature
Coefficient
0.8
0.02
V
OUT
+1.0V< V
IN
<6.0V
0.4
50
1.0
0.1
1.6
C
OUT
Output Capacitor
ESR
Shutdown Input
(Note3)
Threshold
Copyright
ANPEC Electronics Corp.
Rev. A.11 - Jan., 2004
4
www.anpec.com.tw
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