APL5151/2/3/4
Low I
Q
, Low Dropout 150mA Fixed Voltage Regulator
Features
•
•
•
•
•
Low Noise : 60uV
RMS
(100Hz to 100kHz)
Low Quiescent Current : 50uA
Low Dropout Voltage : 300mV
(VOUT(Nominal)=3.0V Version @150mA)
Very low Shutdown Current : < 0.5uA
Fixed Output Voltage : 1.3V,1.4V,1.5V,1.6V,
1.7V,1.8V,1.9V, 2.0V,2.1V,2.2V,2.3V,2.4V,
2.5V,2.6V,2.7V, 2.8V, 2.85V,2.9V,3.0V,3.1V,
3.2V,3.3V,3.4V, 3.5V, 5.0V
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•
•
•
•
•
•
•
•
•
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
SOT-23-5 Package
Lead Free Available (RoHS Compliant)
General Description
The APL5151/2/3/4 is micropower, low noise, low drop-
out linear regulator. Operate from 3V to 6V input volt-
age and deliver up to 150mA. Typical output noise is
just 60uV
RMS
with the addition of an external 0.33uF
bypass capacitor in BP pin and typical dropout voltage
is only 220mV at 150mA loading. Designed for use in
battery-powered system, the low 50uA quiescent cur-
rent makes it an ideal choice. Design with an internal
P-channel MOSFET pass transistor, the APL5151/2/
3/4 maintains a low supply current, independent of
the load current and dropout voltage. Other features
include reverse current protection, thermal-shutdown
protection, current limit protection to ensure speci-
fied output current and controlled short-circuit current.
The APL5151/2/3/4 regulators come in a miniature SOT-
23-5 package.
Pin Configuration
V
IN
GND
SHDN
1
2
3
5
V
OUT
SHDN
GND
1
2
3
5
BP
4
BP
V
IN
4
V
OUT
•
APL5151
APL5152
Applications
V
OUT
1
2
3
4
SHDN
5
BP
SHDN
GND
BP
1
2
3
4
V
OUT
5
V
IN
•
•
•
Notebook Computer
PDA or Portable Equipments
Noise-Sensitive Instrumentation Systems
GND
V
IN
APL5153
APL5154
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. B.4 - May., 2005
1
www.anpec.com.tw
APL5151/2/3/4
Pin Description
PIN
Name
V
IN
GND
SHDN
BP
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 = normal .
Bypass signal pin in fixed output type device
Output pin of the regulator.
No.
1
2
3
4
5
Absolute Maximum Ratings
Symbol
V
IN
, V
OUT
SHDN
R
TH,JA
R
TH,JC
P
D
T
J
Parameter
Input Voltage or Out Voltage
Shutdown Control Pin
Thermal Resistance – Junction to Ambient
Thermal Resistance – Junction to Case
Power Dissipation
Operating Junction Temperature
Control Section
Power Transistor
T
STG
T
L
Storage Temperature Range
Lead Temperature (Soldering, 10 second)
Rating
6
6
260
130
Internally Limited
0 to 125
0 to 150
-65 to +150
260
°C
°C
Unit
V
V
°C/W
°C/W
W
°C
Electrical Characteristics
Unless otherwise noted these specifications apply over full temperature , V
IN
=3.6V, C
IN
=C
OUT
=1uF, SHDN=V
IN
,
T
J
=0 to 125°C . Typical values refer to T
J
=25°C .
Symbol
V
IN
V
OUT
I
LIMIT
I
SHORT
Parameter
Input Voltage
Output Voltage
Circuit Current Limit
Short Current
Load Current
Test Conditions
APL5151/2/3/4
Min.
Typ. Max.
2.7
V
OUT
+1.0V< V
CC
<6.0V, 0mA< I
OUT
< I
MAX
V
OUT
-2%
V
IN
=V
OUT
+1V
250
V
OUT
=0V
40
150
V
OUT
+0.5V< V
CC
<6.0V, 0mA< I
OUT
< I
MAX
V
IN
=V
OUT
+1.0V, 0mA< I
OUT
< I
MAX
515X
V
IN
= V
OUT
+1V , I
OUT
=1mA-150mA in 1µs
10? A to max. load in 1? s
3
Unit
V
V
mA
mA
mA
mV
mV
%
mV
mV
6
V
OUT
V
OUT
+2%
300
350
50
60
4
1
0.1
70
10
6
150
I
OUT
REG
LINE
Line Regulation
REG
LOAD
Load Regulation
Load Transient
Copyright
©
ANPEC Electronics Corp.
Rev. B.4 - May., 2005
www.anpec.com.tw
APL5151/2/3/4
Electrical Characteristics (Cont.)
Unless otherwise noted these specifications apply over full temperature , V
IN
=3.6V, C
IN
=C
OUT
=1uF, SHDN=V
IN
,
T
J
=0 to 125°C . Typical values refer to T
J
=25°C .
Symbol
Parameter
Test Conditions
F≤1kHz, 1Vpp at V
IN
= V
OUT
+1.0V
C
BP
=0.1µF, C
OUT
= 1µF
1.3V≤V
OUT
<1.5V
1.5V≤V
OUT
<2.0
I
OUT
=150mA
2.0V≤V
OUT
<2.5
2.5V≤V
OUT
<3
3V≤V
OUT
≤5
No load
I
Q
Quiescent Current
I
OUT
=150mA
Shutdown Supply
Current
Noise
Shutdown Recovery
Delay
Over Temperature
Shutdown
Over Temperature
Shutdown Hysteresis
TC
C
OUT
Output Voltage
Temperature
Coefficient
Shutdown = low
I
OUT
=0, V
CC
=6.0V
100Hz<f<100kHz, typical load,
C
BP
=0.1µF, C
OUT
= 1µF
100Hz<f<100kHz, typical load,
C
BP
=0.33µF, C
OUT
= 1µF
C
BP
=0.1µF,C
OUT
=1µF, no load
C
BP
=0.33µF,C
OUT
=1µF, no load
135
0.01
80
µVrms
60
4
13.2
150
Hysteresis
10
ms
°C
°C
170
1
µA
APL5151/2/3/4
Min.
Typ. Max.
45
55
1.2
1
0.7
0.3
0.2
50
1.4
1.2
0.8
0.4
0.3
80
µA
Unit
dB
PSRR Ripple Rejection
V
DROP
Dropout Voltage
(Note)
V
OTS
50
ppm/°C
Output Capacitor
0.8
1.0
2.6
µF
ESR
0.02
0.1
1
Ohm
Shutdown Input
V
OUT
+1.0V< V
IN
<6.0V
0.4
1.6
2.5
V
Threshold
Shutdown Input Bias
I
SHDN
V
SHDN
=V
IN
0.01
100
nA
Current
Input Reverse Leakage
V
OUT
-V
IN
=0.1V
0.1
0.5
µA
Current
Reverse Protection
11
50
mV
Threshold
Note: 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
Copyright
©
ANPEC Electronics Corp.
Rev. B.4 - May., 2005
4
www.anpec.com.tw
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