Power APE8866 600ma low dropout linear regulator Datasheet

Advanced Power
Electronics Corp.
APE8866
600mA LOW DROPOUT LINEAR REGULATOR
FEATURES
DESCRIPTIOON
Application for Extreme Low Output Voltage
The APE8866 series are low dropout, positive linear
regulators with very low quiescent current. The APE8866
can supply 600mA output current with a low dropout voltage
& very low output voltage.
The APE8866 regulator is able to operate with output
capacitors as small as 1 µ F for stability. Other than the
current limit protection APE8866 also offers on chip thermal
shutdown feature providing protection against overload or
any condition when the ambient temperature exceeds the
junction temperature.
The APE8866 series are available in low-profile,
space-saving SO-8, SOT-23-5L & SC-70-5L packages.
Guaranteed 600mA Output Current
Very Low Quiescent Current at about 30uA
±2% Output Voltage Accuracy
Needs Only 1µF Capacitor for Stability
Thermal Shutdown / Current Limited Protection
Adjusted Mode with 0.8V Reference Voltage
Low-ESR Ceramic Capacitor for Output Stability.
Tiny SO-8, SOT-23-5L & SC-70-5L Package Type
Halogen Free Product
High PSRR
APPLICATIONS
DVD/CD-ROMs, CD/RWs
Wireless Devices
LCD Modules
Battery Power Systems
Card Readers
XDSL Routers
TYPICAL APPLICATION
VIN
VIN
CIN
R1
GND
SHDN
VSHDN
VOUT
VOUT
COUT
ADJ
ADJ
R2
APE8866-ADJ
Figure1. Application of the APE8866-ADJ
Note : R1,R2 for adjusted mode only
Note : To prevent oscillation, it is recommended to use minimum 1uF X7R or X5R dielectric capacitors if
ceramics are used as input / output capacitors.
ORDERING / PACKAGE INFORMATION
APE8866X
VIN
Package Type
Y5 : SOT-23-5L
U5 : SC 70-5L
M : SO-8
1
GND
2
SHDN
3
( Top View )
(Top View)
(Top View)
5 VOUT
4 ADJ
SC-70-5L (U5)
Rthja=600℃/W
Rthjc=180℃/W
Data and specifications subject to change without notice
VIN
1
GND
2
SHDN
3
5
4
SOT-23-5L (Y5)
Rthja=250℃/W
Rthjc=110℃/W
VOUT
ADJ
SHDN
1
8 GND
VIN
2
7 GND
VOUT
3
6 GND
ADJ
4
5 GND
SO-8
Rthja=160℃/W
Rthjc=45℃/W
1
201301046
Advanced Power
Electronics Corp.
APE8866
ABSOLUTE MAXIMUM RATINGS
Input Voltage (VIN) ------------------------------------------ 6V
Power Dissipation (SOT-23-5L) ------------------------- 0.4W
(SC-70-5L) -----------------------------
0.16W
(SO-8) ----------------------------------- 0.625W
Storage Temperature Range ----------------------------
-65°C To 150°C
Maximum Junction Temperature ------------------------ 150°C
RECOMMENDED OPERATING CONDITIONS
Input Voltage (VIN) ------------------------------------------ 2.8 to 5.5V
Operating Junction Temperature Range (TJ) -------- -40 to 125oC
Ambient Temperature (TA) -------------------------------- -40 to 85oC
ELECTRICAL SPECIFICATIONS
( VIN=VOUT+1V or VIN=2.8V whichever is greater, CIN=1uF, COUT=1uF, TA=25oC, unless otherwise specified)
Parameter
SYM
Output Voltage Accuracy
∆VOUT
Current Limit
Quiescent Current
Dropout Voltage (Note 1)
Dropout Voltage (Note 3)
ILIMIT
IQ
VDROP
VDROP
MIN
TYP
MAX
UNITS
IO=1mA
-2
-
2
%
RLoad=1Ω
600
650
-
mA
-
40
55
µA
0.8V ≦ VOUT ≦ 2.0V
-
1000
-
2.0V < VOUT ≦ 2.8V
-
350
-
2.8V < VOUT ≦ 3.3V
-
250
-
0.8V ≦ VOUT ≦ 2.0V
-
1600
2000
2.0V < VOUT ≦ 2.8V
-
1200
1500
2.8V < VOUT ≦ 3.3V
-
800
1000
TEST CONDITION
IO= 0mA
IO=300mA
IO=600mA
mV
mV
Line Regulation
∆VLINE
IO=1mA, VIN=VOUT +1.5V to 5V
-
1
5
mV
Load Regulation (Note 2)
∆VLOAD
IO=1mA to 600mA
-
50
100
mV
Ripple Rejection
PSRR
Io=1mA, COUT=1uF, fRIPPLE = 100Hz
-
68
-
Io=1mA, COUT=1uF, fRIPPLE = 10KHz
-
48
-
IOUT = 1mA, VIN = 5V
-
50
-
-
160
-
o
25
-
o
Temperature Coefficient
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
TC
TSD
∆TSD
-
dB
ppm/ oC
C
C
ISHDN
-
-
0.1
µA
Shutdown Pin Voltage (ON)
VSHDN(ON)
1.4
-
-
V
Shutdown Pin Voltage (OFF)
VSHDN(OFF)
-
-
0.4
V
Shutdown Pin Current
Note 1:The dropout voltage is defined as V IN-VOUT, which is measured when VOUT drop about 100mV.
Note 2:Regulation is measured at a constant junction temperature by using 30ms current pulse and load regulation in the load range from
0mA to 600mA.
Note 3:The dropout voltage is defined as V IN-VOUT, which is measured when VOUT drop about 100mV.
2
Advanced Power
Electronics Corp.
APE8866
PIN DESCRIPTIONS
PIN SYMBOL PIN DESCRIPTION
VIN
Power is supplied to this device from this pin which is required an input filter capacitor.
In general, the input capacitor in the range of 1µF to 10µF is sufficient.
The output supplies power to loads. The output capacitor is required to prevent output voltage unstable. The
VOUT
APE8866 is stable with an output capacitor 1µF to 10µF.
The larger output capacitor will be required for application with large transit load to limit
peak voltage transits, besides could reduce output noise, improve stability, PSRR.
GND
Common ground pin
ADJ
For Adjusted mode, Apply R1/R2 resistor divider with VOUT to GND
NC
SHDN
No connected
Chip Enable (Active High)
BLOCK DIAGRAM
Figure 2. Block Diagram of APE8866
VOUT = 0.8 x (1+R1/R2)
3
Advanced Power
Electronics Corp.
APE8866
APPLICATION INFORMATIO
The APE8866 series are low dropout linear regulators that could provide 600mA output current
at dropout voltage about 800mV. Besides, current limit and on chip thermal shutdown features
provide protection against any combination of overload or ambient temperature that could exceed
junction temperature.
Output & Input Capacitor
The APE8866 regulator is designed to be stable with a wide range of output capacitors. The
ESR of the output capacitor affects stability. Larger value of the output capacitor decreases the peak
deviations and provides to improve transition response for larger current changes.
The capacitor types (aluminum, ceramic, and tantalum) have different characterizations such as
temperature and voltage coefficients. All ceramic capacitors are manufactured with a variety of
dielectrics, each with different behavior across temperature and applications. Common dielectrics
used are X5R, X7R and Y5V. It is recommended to use 1uF to 10uF X5R or X7R dielectric ceramic
capacitors with 30 mohm to 50 mohm ESR range between device outputs to ground for transient
stability. The APE8866 is designed to be stable with low ESR ceramic capacitors and higher values of
capacitors and ESR could improve output stability.
So the ESR of output capacitor is very importart because it generates a zero to provide phase
lead for loop stability. There are no requirements for the ESR on the input capacitor, but its voltage
and temperature coefficient have to be considered for device application environment.
Protection Features
In order to prevent overloading or thermal condition from damaging the device, APE8866
regulator has internal thermal and current limiting functions designed to protect the device. It will
rapidly shut off PMOS pass element during overloading or over temperature condition.
Thermal Consideration
The power handling capability of the device will be limited by maximum operation junction
temperature (125°C). The power dissipated by the device will be estimated by PD = IOUT × (VIN-VOUT).
The power dissipation should be lower than the maximum power dissipation listed in “ Absolute
Maximum Ratings” section.
4
Advanced Power
Electronics Corp.
APE8866
TYPICAL PERFORMANCE CHARACTERISTICS
I Q vs. T e m p e ra tu re
I Q vs. V I N
46.65
4 6 .5
Quiescent Current, I Q(uA)
Quiescent Current, I Q(uA)
46
4 5 .5
45
4 4 .5
44
4 3 .5
43
4 2 .5
46.15
45.65
45.15
44.65
42
4 1 .5
44.15
41
-40
-25
0
25
50
75
100
4.3
115
4.5
o
T e m p e r atu r e ( C )
4.7
5
In p u t V o lt a g e , V IN ( V )
L o a d R e g u la tio n
V O U T vs. T e m p e ra tu re
3
3 .4
3 .3 5
3 .3
V OUT(V)
V OUT(mV)
2 .8
3 .2 5
2 .6
2 .4
3 .2
1m A
2 .2
3 .1 5
3 00 m A
2
3 .1
-40
-20
0
25
50
85
105
125
0
1
10
50
100
200
T e m p e r a t u r e ( oC )
I OU T( m A )
L in e R e g u la tio n
Load Transient
300
400
500
600
3 .5
VOUT
3
IOUT
V OUT(V)
2 .5
2
1 .5
1
0 .5
0
4 .3
4 .5
4 .7
5
V IN ( V )
o
VIN=4V, IOUT=1mA~600mA, TA=25 C
5
Advanced Power
Electronics Corp.
APE8866
TYPICAL PERFORMANCE CHARACTERISTICS
Power On Test
Power Off Test
VIN
VIN
VOUT
VOUT
IOUT
IOUT
VIN=4V, VOUT=2.5V, IOUT=600mA,
Enable Off Test
Enable On Test
VEN
VEN
VOUT
VOUT
IOUT
IOUT
VIN=3.3V, VOUT=2.5V, IOUT=600mA,
PSRR
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Advanced Power
Electronics Corp.
APE8866
MARKING INFORMATION
SOT-23-5L
Part Number : RU
RUSS
Date Code : SS
SS:2004,2008,2012…
SS:2003,2007,2011…
SS:2002,2006,2010…
SS:2001,2005,2009…
SC-70-5L
DSS
Part Number : D
Date Code : SS
SS:2004,2008,2012…
SS:2003,2007,2011…
SS:2002,2006,2010…
SS:2001,2005,2009…
SO-8
Part Number
Package Code
8866M
YWWSSS
Date Code (YWWSSS)
Y:Last Digit Of The Year
WW:Week
SSS:Sequence
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