Low I
Q
, Low Dropout 700mA Fixed Voltage Regulator
Copyright
ANPEC Electronics Corp.
Rev. A.2 - May., 2005
APL5708R
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 APL5708R series are micropower, low dropout
linear regulators, which operate from 2.7V to 6V input
voltage and deliver up to 700mA. Typical dropout volt-
age is only 700mV at 700mA loading. Designed for
using in battery-powered system, the low 60
A qui-
escent current makes it an ideal choice. Design with
an internal P-channel MOSFET pass transistor, the
APL5708R maintain a low supply current, indepen-
dent of the load current and dropout voltage. Other
features include thermal-shutdown protection, current
limit protection to ensure specified output current and
controlled short-circuit current. The APL5708R regu-
lators come in a miniature SOT-223 package.
Applications
5V to 3.3~3.5V Linear Regulators
3.3V to 1.5~2.5V Linear Regulators
CD-R/W, DVD Player
LAN Card, ADSL/Cable Modem
Computers
Low Quiescent Current : 60
A (No load)
Low Dropout Voltage : 700mV (@700mA)
Very low Shutdown Current : < 0.5uA
Fixed Output Voltage : 1.5V ~ 3.5V
by step 0.1V increment
Stable with 2.2
F Output Capacitor
Stable with Aluminum, Tantalum or Ceramic
Capacitors .
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-223 Package
Lead Free Available (RoHS Compliant)
Pin Configuration
General Description
SOT-223 (Top View)
APL5708R
V
IN
V
O U T
G N D
1
2
3
T A B i s V
O U T
Copyright
ANPEC Electronics Corp.
Rev. A.2 - May., 2005
APL5708R
www.anpec.com.tw
2
Pin Description
PIN
No. Name
I/O Description
1
GND
Ground pins of the circuitry.
2 V
OUT
O
Output pin of the regulator.
3 V
IN
I
Supply voltage input.
Symbol
Parameter
Rating
Unit
V
IN
, V
OUT
Input Voltage or Out Voltage
6
V
R
TH,JA
Thermal Resistance Junction to Ambient
135
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
P a c k a g e C o d e
V : S O T -2 2 3
T e m p . R a n g e
C : 0 to 7 0 C
H a n d lin g C o d e
T R : T a p e & R e e l
V o lta g e C o d e :
1 5 : 1 .5 V ~ 3 5 : 3 .5 V
L e a d F re e C o d e
L : L e a d F re e D e v c ie B la n k : O rig in a l D e v ic e
A P L 5 7 0 8 R -
H a n d lin g C o d e
T e m p . R a n g e
P a c k a g e C o d e
V o lta g e C o d e
A P L 5 7 0 8 R
X X X X X 1 5
X X X X X - D a te C o d e ; 1 5 - 1 .5 V
A P L 5 7 0 8 R -1 5 V :
L e a d F re e C o d e
Ordering and Marking Information
Notes: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte in plate termi-
nation 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.
Copyright
ANPEC Electronics Corp.
Rev. A.2 - May., 2005
APL5708R
www.anpec.com.tw
3
Electrical Characteristics
1
Unless otherwise noted these specifications apply over full temperature, C
IN
=1
F, C
OUT
=2.2
F, T
J
=0 to
125
C. Typical values refer to T
J
=25
C.
APL5708R
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
<
V
OUT
-2
%
V
OUT
V
OUT
+2
%
V
I
LIMIT
Circuit Current Limit
V
IN
=V
OUT
+1V
900 mA
I
SHORT
Short
Current
V
OUT
=0V
50 mA
I
OUT
Load Current
V
IN
=V
OUT
+1V
700
mA
REG
LINE
Line Regulation
V
OUT
+1V< V
CC
<6.0V, I
OUT
=1mA
1
10
mV
REG
LOAD
Load Regulation
V
IN
=V
OUT
+1V, 0mA< I
OUT
< I
MAX
25
40
mV
Load
Transient
V
IN
= V
OUT
+1V, I
OUT
=1mA-700mA in 1
s 150 250 mV
1.5V
V
OUT
<2.0V
1.1
1.3
2.0V
V
OUT
<2.5V
0.9
1.0
2.5V
V
OUT
<3V
0.8
0.9
V
DROP
Dropout
Voltage
(Note1)
I
OUT
=700mA
3V
V
OUT
3.5V
0.7
0.8
V
PSRR Ripple
Rejection
F
1kHz, 1Vpp at V
IN
= V
OUT
+1.0V
45 55
dB
No load
60 100
I
Q
Quiescent Current
I
OUT
=700mA
450 500
A
OTS
Over Temperature
Shutdown
150
C
Over Temperature
Shutdown Hysteresis
Hysteresis
30
C
TC
Output Voltage
Temperature
Coefficient
50
ppm/
C
C
OUT
Output Capacitor
2.2
F
ESR
0.01
0.1
1
Ohm
Note1: Dropout voltage definition: V
IN
- V
OUT
when V
OUT
is 2% below the value of V
OUT
for V
IN
= V
OUT
+1V.
Application Circuit
V
O U T
V
IN
G N D
V O U T
C
IN
1
F
A P L 5 7 0 8 R
IN P U T
2 .7 V to 6 V
C
O U T
2 .2
F
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