Low I
Q
, Low Dropout 300mA Fixed Voltage Regulator
Copyright
ANPEC Electronics Corp.
Rev. A.9 -Apr., 2003
APL5301/2
www.anpec.com.tw
1
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.
Features
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 out-
put noise is just 60uV
RMS
with the addition of an exter-
nal 0.33uF bypass capacitor in BP pin and 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.
Applications
•
Notebook Computer
•
PDA or Portable Equipments
•
Noise-Sensitive Instrumentation Systems
•••••
Low Noise : 60uV
RMS
(100Hz to 100kHz)
•••••
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
Pin Configuration
APL5301
SOT-89 (Top View)
G N D
V
IN
V
O U T
1
2
3
T A B is V
IN
SOT-23 (Top
View)
G ND
1
2
3
V
OUT
V
IN
APL5301
V
IN
G N D
B P
V
OU T
1
2
3
5
S H D N
4
APL5301
SOT-23-5 (Top
View)
APL5301
SOT-89-5 (Top
View)
V
IN
G N D
V
OUT
1
2
3
5
4
S H D N
B P
G N D
Copyright
ANPEC Electronics Corp.
Rev. A.9 - Apr., 2003
APL5301/2
www.anpec.com.tw
2
P a ckage C ode
A : S O T -23 B : S O T -2 3-5 D : S O T -89
D 5 : S O T -89-5 K : S O P -8
T e m p . R a nge
C : 0 to 70 C I : -40 to 8 5 C
H andling C ode
T R : T ap e & R ee l
V o ltage C ode :
13 : 1 .3V ~ 3 4 : 3.4V 5 0 : 5.0V
A P L5301/2 -
H andling C ode
T e m p . R a nge
P a ckage C ode
V o ltage C ode
A P L 5 3 0 1 /2
X X X X X 1 3
X X X X X - D ate C o de ; 13 - 1.3V
A P L53 01/2 -13 D /K :
Product Name
Marking
Product Name
Marking
APL5301-13A/B
317X
APL5302-13A/B
327X
APL5301-14A/B
318X
APL5302-14A/B
328X
APL5301-15A/B
319X
APL5302-15A/B
329X
APL5301-16A/B
31AX
APL5302-16A/B
32AX
APL5301-17A/B
31BX
APL5302-17A/B
32BX
APL5301-18A/B
31CX
APL5302-18A/B
32CX
APL5301-19A/B
31DX
APL5302-19A/B
32DX
APL5301-20A/B
31EX
APL5302-20A/B
32EX
APL5301-21A/B
31FX
APL5302-21A/B
32FX
APL5301-22A/B
31GX
APL5302-22A/B
32GX
APL5301-23A/B
31HX
APL5302-23A/B
32HX
APL5301-24A/B
31IX
APL5302-24A/B
32IX
APL5301-25A/B
31JX
APL5302-25A/B
32JX
APL5301-26A/B
31KX
APL5302-26A/B
32KX
APL5301-27A/B
31LX
APL5302-27A/B
32LX
APL5301-28A/B
31MX
APL5302-28A/B
32MX
APL5301-29A/B
31NX
APL5302-29A/B
32NX
APL5301-30A/B
31OX
APL5302-30A/B
32OX
APL5301-31A/B
31PX
APL5302-31A/B
32PX
Marking Information
SOT-23 and SOT-23-5 packages
V
IN
G N D
B P
V
OU T
1
2
3
5
S H D N
4
Pin Configuration (Cont.)
APL5302
SOT-89 (Top View)
SOT-23 (Top
View)
APL5302
Ordering and Marking Information
°
°
SOP-8 (Top View)
1
2
3
4
5
6
7
8
S H D N
V
IN
V
O U T
B P
G N D
G N D
G N D
G N D
APL5301
G N D
V
IN
V
O U T
1
2
3
T A B is G N D
G ND
1
2
3
V
OUT
V
IN
SOT-23-5 (Top
View)
APL5302
Copyright
ANPEC Electronics Corp.
Rev. A.9 - Apr., 2003
APL5301/2
www.anpec.com.tw
3
Product Name
Marking
Product Name
Marking
APL5301-32A/B
31QX
APL5302-32A/B
32QX
APL5301-33A/B
31RX
APL5302-33A/B
32RX
APL5301-34A/B
31SX
APL5302-34A/B
32SX
APL5301-35A/B
31TX
APL5302-35A/B
32TX
APL5301-48A/B
31XX
APL5302-48A/B
32XX
APL5301-49A/B
31YX
APL5302-49A/B
32YX
APL5301-50A/B
31ZX
APL5302-50A/B
32ZX
Marking Information (Cont.)
SOT-23 and SOT-23-5 packages
Pin Description
PIN
No.
Name
I/O
Description
1
V
IN
I
Supply voltage input.
2
GND
Ground pins of the circuitry, and all ground pins must be soldered
To PCB with proper power dissipation.
3
SHDN
(Note1)
I
Shutdown control pin, low = off, high = nromal.
4
BP
(Note1)
O
Bypass signal pin of the regulator.
5
V
OUT
O
Output pin of the regulator.
Note1 : This pin does not exist in 3-pin package.
Symbol
Parameter
Rating
Unit
V
IN
, V
OUT
Input Voltage or Out Voltage
6
V
SHDN
Shutdown Control Pin
6
V
R
TH,JA
Thermal Resistance – Junction to Ambient
357
°C/W
P
D
Power Dissipation
Internally Limited
W
T
J
Operating Junction Temperature
°C
Control Section
0 to 125
Power Transistor
0 to 150
T
STG
Storage Temperature Range
-65 to +150
°C
T
L
Lead Temperature (Soldering, 10 second)
260
°C
Absolute Maximum Ratings
The last character “X” in the marking is for data code.
Copyright
ANPEC Electronics Corp.
Rev. A.9 - Apr., 2003
APL5301/2
www.anpec.com.tw
4
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
Min.
Typ.
Max.
Unit
V
IN
Input Voltage
2.7
6
V
V
OUT
Output Voltage
V
OUT
+1.0V< V
CC
<6.0V, 0mA< I
OUT
I
V
OUT
-2
%
V
OUT
V
OUT
+2
%
V
I
LIMIT
Circuit Current Limit
V
IN
=V
OUT
+0.5V
500
mA
I
SHORT
Short Current
V
OUT
=0V
50
mA
I
OUT
Load Current
V
IN
=V
OUT
+0.5V
300
mA
REG
LINE
Line Regulation
V
OUT
+0.5V< V
CC
<6.0V,
I
OUT
=150mA
4
10
mV
REG
LOA
Load Regulation
V
IN
=V
OUT
+0.5V, 0mA< I
OUT
< I
MAX
1
6
mV
Load Transient
V
IN
= V
OUT
+0.5V , I
OUT
=1mA-
150mA in 1us
70
150
mV
mV
1.3V
≤
V
OUT
<1.5V
1.2
1.6
1.5V
≤
V
OUT
<2.0V
1
1.2
2.0V
≤
V
OUT
<2.5V
0.8
0.9
2.5V
≤
V
OUT
<3V
0.6
0.7
V
DROP
Dropout Voltage
(Note2)
I
OUT
=300mA
3V
≤
V
OUT
≤
5V
0.4
0.5
V
PSRR Ripple Rejection
F
≤
1kHz, 1Vpp at V
IN
= V
OUT
+1.0V
45
55
dB
No load
50
80
I
Q
Quiescent Current
I
OUT
=300mA
150
180
µ
A
Shutdown Supply
Current
(Note3)
Shutdown = low
I
OUT
=0, V
CC
=6.0V
0.01
1
µ
A
100Hz<f<100kHz, typical load,
C
BP
=0.1uF, C
OUT
= 1uF
80
Noise
100Hz<f<100kHz, typical load,
C
BP
=0.33uF, C
OUT
= 1uF
60
µ
Vrms
C
BP
=0.1uF,C
OUT
=1uF, no load
4
Shutdown Recovery
Delay
(Note3)
C
BP
=0.33uF,C
OUT
=1uF, no load
13.2
ms
OTS Over Temperature Shutdown
150
°
C
Over Temperature Shutdown
Hysteresis
Hysteries
10
°
C
TC
Output Voltage Temperature
Coefficient
50
ppm/
°
C
C
OUT
Output Capacitor
0.8
1.0
2.6
µ
F
ESR
0.02
0.1
1
Ohm
Shutdown Input
Threshold
(Note3)
V
OUT
+1.0V< V
IN
<6.0V
0.4
1.6
2.5
V
Copyright
ANPEC Electronics Corp.
Rev. A.9 - Apr., 2003
APL5301/2
www.anpec.com.tw
5
APL5301/2
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
I
SHDN
Shutdown input Bias
current
(Note3)
V
SHDN
=V
IN
0.01
100
nA
Input Reverse Leakage
current
V
OUT
-V
IN
=0.1V
0.1
0.5
µ
A
Reverse Protection
Threshold
11
50
mV
Electrical Characteristics (Cont.)
Application Circuit
BP
V
O U T
V
IN
G N D
SH D N
VO U T
C
IN
1uF
off
on
AP L5301/2
IN P U T
2.7V to 6V
0.33uF
C
BP
C
O U T
1uF
Note2 : Dropout voltage definition : V
IN
-V
OUT
when V
OUT
is 2% below the value of V
OUT
for V
IN
= V
OUT
+ 0.5V
Note3 : For 5-pin devices only.
Copyright
ANPEC Electronics Corp.
Rev. A.9 - Apr., 2003
APL5301/2
www.anpec.com.tw
6
Typical Characteristics
(All Curves are For Fix 3.3V)
0
20
40
60
80
100
120
140
160
0
1
2
3
4
5
6
Ground Pin Current vs. Input Voltage
Input Voltage (V)
Ground Pin Current vs. Load Current (uA)
I
OUT
=50mA
NO LOAD
0
0.5
1
1.5
2
2.5
3
3.5
0
1
2
3
4
5
6
Input Voltage vs. Output Voltage
Input Voltage (V)
Output V
oltage (V)
0
20
40
60
80
100
120
140
160
0
50
100
150
200
250
300
Ground Pin Current vs. Load Current
Ground Pin Current vs. Load Current (uA)
Load Current (mA)
3.28
3.29
3.3
3.31
3.32
-40
-15
10
35
60
85
Output Voltage vs. Temperature
Temperature (°C )
Output V
oltage (V)
Copyright
ANPEC Electronics Corp.
Rev. A.9 - Apr., 2003
APL5301/2
www.anpec.com.tw
7
Typical Characteristics
1
1.1
1.2
1.3
1.4
1.5
1.6
3.5
4
4.5
5
5.5
6
SHDN Threshold Voltage vs. Input Voltage
SHDN Threshold V
oltage (V)
Input Voltage (V)
-80
+0
-70
-60
-50
-40
-30
-20
-10
10
200k
20
50 100 200
500 1k
2k
5k 10k 20k
50k
PSRR vs. Frequency
Frequency (H
Z
)
PSRR (dB)
V
IN
=4.3V
I
OUT
=50mA
C
OUT
=1uF
C
BP
=0.1uF
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0
1
2
3
4
5
6
Reverse Leakage Current vs. Output Voltage
Reverse Leakage Current (uA)
Output Voltage (V)
0
50
100
150
200
250
300
0
50
100
150
200
250
300
Dropout Voltage vs. Load Current
Load Current (mA)
Dropout V
oltage (mV)
Copyright
ANPEC Electronics Corp.
Rev. A.9 - Apr., 2003
APL5301/2
www.anpec.com.tw
8
Typical Characteristics
Output Noise
Time (s)
V
OUT
(50uV/div)
-300u
300u
-250u
-200u
-150u
-100u
-50u
0
50u
100u
150u
200u
250u
0
10m
2m
4m
6m
8m
V
IN=4.3V
f=100H
Z
-80KH
Z
I
OUT
=50mA C
OUT
=1uF
C
BP
=0.33uF
0
50
100
150
200
250
0
0.1
0.2
0.3
0.4
Output Noise vs. Bypass Capacitor
Output Noise (uV)
Bypass Capacitor (uF)
V
IN
=4.3V f=100H
Z
-80KH
Z
I
OUT
=50mA C
OUT
=1uF
1mA
50mA
Load-Transient Response
Output V
oltage (20mV/div)
Time (100us)
V
OUT
I
OUT
4V
5V
Time (500us/div)
V
OUT
V
IN
I
OUT
=50mA
Line-Transient Response
V
IN
=4.3V
Output V
oltage (50mV/div)
Copyright
ANPEC Electronics Corp.
Rev. A.9 - Apr., 2003
APL5301/2
www.anpec.com.tw
9
Typical Characteristics
Entering Shutdown
2.5V
0V
0V
Time (2ms/div)
V
OUT
v
SHDN
c
BP
=0.33uF
2.5V
0V
0V
Shutdown Exit Delay
Time (4ms/div)
V
OUT
v
SHDN
C
BP
=0.1uF
2.5V
0V
0V
Time (0.1ms/div)
V
OUT
V
SHDN
Shutdown Exit Delay
0.01
0.1
1
10
0
50
100
150
200
250
300
Region of Stable ESR vs. Load Current
Load Current (mA)
C
OUT
ESR (
Ω
)
Stable
Region
C
OUT
=1uF
Copyright
ANPEC Electronics Corp.
Rev. A.9 - Apr., 2003
APL5301/2
www.anpec.com.tw
10
The minimum input-output voltage difference (dropout)
determines the lowest usable supply voltage. In bat-
tery-powered systems, this will determine the useful
end-of-life battery voltage. Because the APL5301/2
use a p-channel MOSFET pass transistor, the drop-
out voltage is a function of drain-to-source on-resis-
tance (R
DS(ON)
) multiplied by the load current.
The APL5301/2 load-transient response graphs in typi-
cal characteristics show the transient response. A
step change in the load current from 1mA to 50mA at
1us will cause a 60mV transient spike. Larger output
capacitor and lower ESR can reduce transient spike.
Application Information
Capacitor Selection and Regulator
Stability
The APL5301/2 use at least a 1uF capacitor on the
input, and this capacitor can be Aluminum, Tantalum
or Ceramic capacitor. The input capacitor with larger
value and lower ESR provides better PSRR and line-
transient response. The output capacitor also can use
Aluminum, Tantalum or Ceramic capacitor, and a mini-
mum value of 1uF and ESR above 0.06
Ω
is
recommended. The curve of the stable region in typi-
cal characteristics shows the appropriate output ca-
pacitor ESR for different load current stable operation.
A larger output capacitor can reduce noise and im-
prove load-transient response, stability, and PSRR.
Note that some ceramic dielectrics exhibit large ca-
pacitance and ESR variation with temperature. When
using this capacitor, a minimum 2.2uF or more may
be required to ensure the stability at low temperature
operation. Use a bypass capacitor at BP pin for low
output nvise. Increasing the capacitance will slightly
decrease the output noise, but increase the start-up
time. (See Shutdown Exit Delay and Output Noise
vs.Bypass Capacitor graph in the typical
characteristics)
Load-Transient Considerations
Input-Output (Dropout)Voltage
Reverse Current Protection
The APL5301/2 have an internal reverse protection, it
does not need an external schottky diode to connect
the regulator input and output. If the output voltage is
forced above the input voltage by more than 11mV,
the IC will be shutdown and the ground pin current is
below 0.1uA.
Current Limit
The APL5301/2 have a current limit protection. The
ouptut voltage will drop close to zero volt, when load
current reaches the limit, and then the load current
will be limited at 50mA after output voltage is below 0.
7V. When the load current back to the value where
limiting started, the output voltage and current will re-
turn to normal value. When output is shorted to
ground, the APL5301/2 will keep short circuit current
at 150mA .
Copyright
ANPEC Electronics Corp.
Rev. A.9 - Apr., 2003
APL5301/2
www.anpec.com.tw
11
Thermal protection limits total power dissipation in the