APL5901/2
Low I
Q
, Low Dropout 900mA Fixed Voltage Regulator
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
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Low Noise : 50µV
RMS
(100Hz to 100kHz)
Low Quiescent Current : 50µA (No load)
Low Dropout Voltage : 210mV (@900mA)
Very low Shutdown Current : < 1µA
Fixed Output Voltage : 1.3V ~ 3.4V
Stable with 4.7µF 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 : 200mA
Fast Transient Response
Short Setting Time
SOT-89, SOT-89-5, SOT-223, SO-8 ,TO-252
and TO-252-5 Packages
Lead Free Available (RoHS Compliant)
Design with an internal P-channel MOSFET pass
transistor, the APL5901/2 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 specified output current and con-
trolled short-circuit current. The APL5901/2 regulator
come in a miniature SOT-89, SOT-89-5, SOT-223, SO-
8, TO-252 and TO-252-5 packages.
Pin Configuration
APL5901
BP
TAB is GND
GND SHDN
5
1
2
3
4
2
3
1
V
IN
GND
V
OUT
V
OUT
GND
V
IN
SOT-89 (Top View)
SOT-89-5 (Top View)
TAB is GND
Applications
IN
1
2
3
4
8
7
6
5
OUT
GND
GND
•
•
•
Notebook Computer
PDA or Portable Equipments
Noise-Sensitive Instrumentation Systems
GND
GND
SHDN
1
BYP
2
3
General Description
The APL5901/2 is micropower, low noise, low dropout
linear regulator. Operate from 2.7V to 6V input voltage
and deliver up to 900mA. Typical output noise is just
50µV
RMS
with the addition of an external 0.1µF bypass
capacitor in BP pin and typical dropout voltage is only
210mV at 900mA loading. Designed for use in bat-
tery-powered system, the low 50µA quiescent cur-
rent makes it an ideal choice.
V
IN
GND
V
OUT
SO-8 (Top View)
TAB is GND
SOT-223 (Top View)
V
OUT
BP
GND
SHDN
V
IN
TAB is GND
1
2
3
V
IN
V
OUT
TO-252 (Top View)
TO-252-5 (Top View)
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.2 - May., 2005
1
www.anpec.com.tw
1
2
3
4
5
APL5901/2
Pin Configuration (Cont.)
APL5902
TAB is V
OUT
1
2
3
GND V
O U T
V
IN
SOT-223 (Top View)
Ordering and Marking Information
APL5901/2 -
Lead Free Code
Handling Code
Temp. Range
Package Code
Voltage Code
Package Code
D : S OT-89
D5 : SOT-89-5
U : TO-252
U5 : TO-252-5
V : SOT-223
K : SO-8
Temp. Range
C : 0 to 70
°
C
Handling Code
TR : Tape & Reel
Voltage Code :
13 : 1.3V ~ 34 : 3.4V
Lead Free Code
L : Lead Free Device
Blank : Original Device
XXXXX - Date Code , 13 - 1.3V
APL5901/2 - 13 D/V/K :
APL5901/2
XXXXX13
13
APL5901/2
XXXXX
APL5901/2 - 13 U :
XXXXX - Date Code , 13 - 1.3V
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte in plate termina-
tion 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 classifica-
tion at lead-free peak reflow temperature.
Pin Description
No.
1
2
3
4
5
PIN
Name
V
IN
GND
SHDN
BP
(Note1)
V
OUT
(Note1)
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. Don’ leave open.
t
Bypass signal pin in fixed output type device
Output pin of the regulator.
I
O
O
Note1 : These pins do not exist in 3-pin package.
Copyright
©
ANPEC Electronics Corp.
Rev. B.2 - May., 2005
2
www.anpec.com.tw
APL5901/2
Absolute Maximum Ratings
Symbol
V
IN
, V
OUT
SHDN
Parameter
Input Voltage or Out Voltage
Shutdown Control Pin
Rating
6.5
6.5
SOT-89 : 180
SOT-223 : 135
SO-8 : 150
TO-252 : 50
SOT-89 : 38
SOT-223 : 15
SO-8 : 20
TO-252 : 6
Internally Limited
0 to 125
0 to 150
-65 to +150
260
°C
°C
Unit
V
V
R
TH,JA
Thermal Resistance – Junction to Ambient
°C/W
R
TH,JC
P
D
T
J
Thermal Resistance – Junction to Case
°C/W
W
°C
Power Dissipation
Operating Junction Temperature
Control Section
Power Transistor
Storage Temperature Range
Lead Temperature (Soldering, 10 second)
T
STG
T
L
Electrical Characteristics
Unless otherwise noted these specifications apply over full temperature, V
IN
=3.6V, C
IN
=1µF, C
OUT
=4.7µF,
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
I
OUT
Parameter
Input Voltage
Output Voltage
Circuit Current Limit
Short Current
Load Current
Test Conditions
APL5901/2
Min. Typ. Max.
2.7
6
Unit
V
V
A
mA
mA
10
6
1300
1050
700
380
dB
100
450
1
µ
A
µ
A
mV
mV
%
mV
V
OUT
+1.0V< V
CC
<6.0V, 0mA< I
OUT
< I
MAX
V
OUT
-2
%
V
OUT
V
OUT
+2
%
V
IN
=4.3V
1.5
V
OUT
=0V
900
V
OUT
+0.5V< V
CC
<6.0V, I = 1mA
V
IN
=V
OUT
+1.0V, 0mA< I
OUT
< I
MAX
1.3V≤V
OUT
<1.5V
515X
1.5V
≤
V
OUT
<2V
2V≤V
OUT
<2.5V
2.5V
≤
V
OUT
<3.4V
F
≤
1kHz, 1Vpp at V
IN
= V
OUT
+1.0V
C load
No =10nf
I
OUT
=900mA
Shutdown = low
I
OUT
=0, V
CC
=6.0V
3
200
4
1
0.1
1100
900
500
280
55
65
50
370
0.01
REG
LINE
Line Regulation
REG
LOAD
Load Regulation
(Note2)
V
DROP
Dropout Voltage
I
OUT
=900mA
PSRR Ripple Rejection
I
Q
Quiescent Current
Shutdown Supply
(Note3)
Current
Copyright
©
ANPEC Electronics Corp.
Rev. B.2 - May., 2005
www.anpec.com.tw
APL5901/2
Electrical Characteristics (Cont.)
Unless otherwise noted these specifications apply over full temperature, V
IN
=3.6V, C
IN
=1µF, C
OUT
=4.7µF,
SHDN=V
IN
, T
J
=0 to 125°C. Typical values refer to T
J
=25°C.
Symbol
Parameter
Test Conditions
100Hz<f<100kHz, typical load,
C
BP
=0.01µF, C
OUT
= 1µF
100Hz<f<100kHz, typical load,
C
BP
=0.1µF, C
OUT
= 1µF
C
BP
=0.01µF,C
OUT
=1µF, no load
C
BP
=0.1
µ
F,C
OUT
=1
µ
F, no load
APL5901/2
Min. Typ. Max.
50
µVrms
40
7
70
150
Hysteries
10
50
4.2
4.7
5.2
ms
°C
°C
ppm/
°
C
µF
Unit
Noise
I
Q
(Note3)
Shutdown Recovery
(Note3)
Delay
OTS
Over Temperature
Shutdown
Over Temperature
Shutdown Hysteresis
Output Voltage
Temperature
Coefficient
Output Capacitor
TC
C
OUT
ESR
0.02
0.1
1
Ohm
Shutdown Input
V
OUT
+1.0V< V
IN
<6.0V
0.4
0.7
1.6
V
Threshold
(Note3)
Shutdown input Bias
I
SHDN
V
SHDN
=V
IN
0.01
100
nA
current
(Note3)
Input Reverse Leakage
µ
A
V
OUT
-V
IN
=0.1V
0.1
0.5
current
Reverse Protection
11
50
mV
Threshold
Note 2 : 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
Note 3 : For 5-pin devices only.
Application Circuit
INPUT
2.7V to 6V
V
IN
APL5901
on
off
C
BP
0.01
µ
F
SHDN
GND
BP
C
OUT
4.7
µ
F
V
OUT
VOUT
C
IN
1
µ
F
Copyright
©
ANPEC Electronics Corp.
Rev. B.2 - May., 2005
4
www.anpec.com.tw
ADI Reference Circuit
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