Data and specifications subject to change without notice.
APE8805
Advanced Power
Electronics Corp.
600mA LOW DROPOUT LINEARREGULATOR
TYPICAL APPLICATION CIRCUIT
Figure 1. Typical Application Circuit of APE8805
Note：To prevent oscillation, it is recommended to use minimum 1µF X7R or X5R dielectric capacitors if ceramics are
used as input/output capacitors.
FEATURES
● Low Dropout Voltage of 600mV at 600mA
● Guaranteed 600mA Output Current
● Very Low Quiescent Current at about 30uA
● Max. ± 2%Output Accuracy
● Needs Only 1µF Capacitor for Stability
● Thermal Shutdown Protection
● Current Limit Protection
● Low-ESR Ceramic Capacitor for Output Stability
● RoHS Compliant
APPLICATIONS
● DVD/CD-ROMs, CD/RWs
● Wireless Devices
● LCD Modules
● Battery Power Systems
● Card Readers
● XDSL Routers
DESCRIPTION
The APE8805 series are low dropout, positive
linear regulators with very low quiescent current.
The APE8805 can supply 600mA output current
with a low dropout voltage at about 600mV.
The APE8805 regulator is able to operate with
output capacitors as small as 1µF for stability.
Other than the current limit protection APE8805
also offers on chip thermal shutdown feature
providing protection against overload or any
condition when the ambient temperature exceeds
the junction temperature.
The APE8805 series are available in fixed output
voltage ranging from 1.5V, 1.8V, 2.0V, 2.5V, 2.8V, 3V and 3.3V.
The APE8805 series are available in space-saving
SOT-23, SOT-89, and SOT-223 packages.
APE8805
VIN VOUT
GND
1µF 1µF
COUT
CIN
1
200812027
2
APE8805
Advanced Power
Electronics Corp.
ORDERING INFORMATION
Note：The devices are available in fixed voltages range of
1.5V, 1.8V, 2.0V, 2.5V, 2.8V, 3V & 3.3V. Please consult APEC
sales office or authorized distributor for availability of special
output voltages.
PIN ASSIGNMENTS
SOT-23(N)
3
12
TOP VIEW
1. GND
2. VOUT
3. VIN
SOT-89(G)
2
13
TOP VIEW
1. GND
2. VIN
3. VOUT
SOT-89(GR)
2
13
TOP VIEW
1. VOUT
2. GND
3. VIN
SOT-223(K)
2
13
TOP VIEW
1. GND
2. VOUT
3. VIN
Figure 2. Pin Assignment of APE8805
ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Min Max Unit
Supply Input Voltage VIN 6 V
Maximum Junction Temperature TJ 150 ºC
Power Dissipation SOT-23 PD 0.4 W
Power Dissipation SOT-89 PD 0.57 W
Power Dissipation SOT-223 PD 0.74 W
Package Thermal Resistance SOT-23 θJA 250
°C/W
Package Thermal Resistance SOT-89 θJA 175
°C/W
Package Thermal Resistance SOT-223 θJA 135
°C/W
Storage Temperature Range TS -65 150 ºC
Lead Temperature (Soldering, 10 sec.) TLEAD 260 ºC
Note：Stresses beyond those listed under “Absolute Maximum Ratings" may cause permanent damage to the device.
Package Type
N: SOT-23
G: SOT-89
GR: SOT-89
K: SOT-223
Output Voltage
15: 1.5V 18: 1.8V
20: 2.0V 25: 2.5V
28: 2.8V 30: 3.0V
A
PE8805
□
-
□
TOP VIEW
1. VOUT
2. GND
3. VIN
SOT-223(KR)
2
13
KR: SOT-223
33: 3.3V
3
APE8805
Advanced Power
Electronics Corp.
RECOMMENDED OPERATING CONDITIONS
Parameter Symbol Min Max Unit
Input Voltage VIN 2.8 5.5 V
Operating Junction Temperature Range TJ -40 125 ºC
ELECTRICAL CHARACTERISTICS
(VIN=VOUT+1V or VIN=2.8V whichever is greater, CIN=1µF, COUT=1µF, TA=25 ºC, unless otherwise specified)
Parameter Symbol Conditions Min Typ Max Unit
Output Voltage Accuracy ∆VOUT IO= 1mA -2 +2 %
Current Limit ILIMIT RLoad=1Ω 600 mA
Quiescent Current IQ I
O= 0mA 30 50 µA
1.2V ≤ VOUT ≤ 2.0V 1400
2.0V < VOUT ≤ 2.8V 800
Dropout Voltage (Note 1) VDROP I
O=600mA
2.8V < VOUT ≤ 4.5V
600
mV
Line Regulation ∆VLINE IO=1mA, VIN=VOUT +1V to 5V 1 5 mV
Load Regulation (Note 2) ∆VLOAD IO=0mA to 600mA 13 50 mV
Ripple Rejection PSRR VIN=VOUT+1V
fRIPPLE = 120Hz, COUT = 1µF 60 dB
Temperature Coefficient TC IOUT = 1mA, VIN = 5V 50 ppm/ ºC
Thermal Shutdown Temperature TSD 160 ºC
Thermal Shutdown Hysteresis ∆TSD 25 ºC
Note 1：The dropout voltage is defined as VIN-VOUT, which is measured when VOUT drop about 100mV.
Note 2：Regulation is measured at a constant junction temperature by using 40ms current pulse and load regulation in the load range from
0mA to 600mA.
FUNCTIONAL PIN DESCRIPTION
Pin Name Pin Function
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.
VOUT
The output supplies power to loads. The output capacitor is required to prevent output voltage unstable. The
APE8805 is stable with an output capacitor 1µF or greater. 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
Ambient Temperature Range TA -40 125 ºC
4
APE8805
Advanced Power
Electronics Corp.
BLOCK DIAGRAM
Error
Amp
Current
Limit
Thermal
Shutdown
_
__
_+
++
+
Vref 1.2V
VIN VOUT
GND
RSEN
PMOS
R1
R2
Figure 3. Block Diagram of APE8805
APPLICATION INFORMATION
The APE8805 series are low dropout linear regulators
that could provide 600mA output current at dropout
voltage about 600mV. Besides, current limit and on
chip thermal shutdown features provide protection
against any combination of overload or ambient
temperature that could exceed junction temperature.
1.OUTPUT AND INPUT CAPACITOR
The APE8805 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 30mΩΩΩΩ
to 50mΩΩΩΩ ESR range betw- een device outputs
to ground for transient stability. The APE8805
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 important 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.
2.PROTECTION FEATURES
In order to prevent overloading or thermal condition
from damaging device, APE8805 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.
3.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 x (VIN-VOUT).
The power dissipation should be lower than the
maximum power dissipation listed in
“Absolute Maximum Ratings” section.
5
APE8805
Advanced Power
Electronics Corp.
TYPICAL PERFORMANCE CURVES
3.0 3.5 4.0 4.5 5.0 5.5 6.0
30
35
40
45
50
Vout=1.8V
Cin=1uF
Cout=1uF
Quiescen t Curr en t (uA)
3.0 3.5 4.0 4.5 5.0 5.5 6.0
30
35
40
45
50
Vout=3.3V
Cin=1uF
Cout=1uF
Quiescent Current (uA)
In
p
ut Volta
g
e
(
V
)
Figure 4. Quiescent Current vs. Input Voltage Figure 5. Quiescent Current vs. Input Voltage
3.0 3.5 4.0 4.5 5.0 5.5 6.0
850
800
750
700
650
Vout=1.8V
Cin=1uF
Cout=1uF
Current Limit(mA)
Input Voltage(V)
3.5 4.0 4.5 5.0 5.5 6.0
650
700
750
800
850
Vout=3.3V
Cin=1uF
Cout=1uF
Current Limit(mA)
Input Voltage(V)
Figure 6. Current limit vs. Input Voltage Figure 7. Current Limit vs. Input Voltage
-25 0 25 50 75 100 125
650
700
750
800
850
Vin=5V
Vout=1.8V
Cin=1uF
Cout=1uF
Current Limit(mA)
Temperature(
0
C)
-25 0 25 50 75 100 125
650
700
750
800
850
Vin=5V
Vout=3.3V
Cin=1uF
Cout=1uF
Current Limit(mA)
Temperature(
0
C)
Figure 8. Current limit vs. Temperature Figure 9. Current limit vs. Temperature
6
APE8805
Advanced Power
Electronics Corp.
TYPICAL PERFORMANCE CURVES (Continued)
-25 0 25 50 75 100 125
20
30
40
50
60
Vin=5V
Vout=1.8V
Cin=1uF
Cout=1uF
Quiescent Current(uA)
Temperature(
0
C)
-50 -25 0 25 50 75 100 125
20
30
40
50
60
Vin=5V
Vout=3.3V
Cin=1uF
Cout=1uF
Quiescent Current(uA)
Temperature(
0
C)
Figure 10. Quiescent Current vs. Temperature Figure 11. Quiescent Current vs. Temperature
-25 0 25 50 75 100 125
1.70
1.75
1.80
1.85
1.90
Vin=5V
Cin=1uF
Cout=1uF
Output Voltag e(V)
Temperature(
0
C)
-25 0 25 50 75 100 125
3.20
3.25
3.30
3.35
3.40
Vin=5V
Cin=1uF
Cout=1uF
Outpu t Vol tage(V)
Temperature(
0
C)
Figure 12. Temperature Stability Figure 13. Temperature Stability
0 100 200 300 400 500 600
0
200
400
600
800
1000
Cin=1uF
Cout=1uF
Vout=3.3V
Tj=125
0
C
Tj=85
0
C
Tj=25
0
C
Tj=-40
0
C
Dropout Voltage(mV)
Loading Current(mA)
Figure 14. Dropout Voltage vs. Loading Current
7
APE8805
Advanced Power
Electronics Corp.
TYPICAL PERFORMANCE CURVES (Continued)
VIN=4V IOUT= 1mA to150mA
VOUT=3.3V CIN=1uF COUT=1uF
VIN=4V IOUT=1mA to 150mA
VOUT=3.3V CIN=1uF COUT=4.7uF
Figure 15. Load Transition Response Figure 16. Load Transition Response
VIN=3V to 4V IOUT=10mA VOUT= 1.8V CIN=1uF COUT=1uF
VIN=3V to 4V IOUT=10mA VOUT= 1.8V CIN=1uF COUT=4.7uF
Figure 17. Line Transition Response Figure 18. Line Transition Response
Package Outline : SOT-23
Millimeters
MIN NOM MAX
A 1.00 1.15 1.30
A1 0.00 -- 0.10
A2 0.10 0.15 0.25
D1 0.30 0.40 0.50
e1.70 2.00 2.30
D 2.70 2.90 3.10
E 2.40 2.65 3.00
E1 1.40 1.50 1.60
1.All Dimension Are In Millimeters.
2.Dimension Does Not Include Mold Protrusions.
Part Marking Information & Packing : SOT-23
ADVANCED POWER ELECTRONICS CORP.
SYMBOLS
R7&SS
Part Number : R7
D
E1 E
e
D1
A
A1 A2
Date Code :
SS:2004,2008,2012…
SS:2003,2007,2011…
SS:2002,2006,2010…
SS:2001,2005,2009…
"A~Z" showed on 3rd position --> week 1 ~ week 26,
"A~Z" showed on 4th position --> week 27 ~ week 52.
Laser Marking
8
Output Voltage : ADJ : Blank
D : 2.8V P : 2.0V
B : 1.8V
C : 2.5V
A : 1.5V E : 3.0V
F : 3.3V
Package Outline & Packing : SOT-89
Millimeters
SYMBOLS MIN NOM MAX
4.40 - 4.60
4.05 - 4.25
1.40 - 1.75
2.40 - 2.60
0.89 - 1.20
0.35 - 0.55
---- 1.50 ----
---- 3.00 ----
1.40 - 1.60
0.35 - 0.43
1.All Dimensions Are in Millimeters.
2.Dimension Does Not Include Mold Protrusions.
Part Marking Information : SOT-89
K
F
I
H
G
J
A
B
C
E
ADVANCED POWER ELECTRONICS CORP.
XXX
G
D
I
E
B
C
12 3
H
G
A
J
K
88XX&
Part Number :
Y
WWS
Date Code (YWWS)
Y : Year
WW：Week
S：Sequence
F
APE8805G : 8805
APE8805GR : 885R
Output Voltage : ADJ : Blank
9
A : 1.5V C : 2.5V E : 3.0V P : 2.0V
B : 1.8V D : 2.8V F : 3.3V
Package Outline : SOT-223
Millimeters
SYMBOLS MIN NOM MAX
6.70 7.00 7.30
--- 2.3 ---
2.90 3.00 3.10
D 0.60 0.70 0.80
G 0.25 0.30 0.35
6.30 6.50 6.70
1.40 1.60 1.80
0.02 0.06 0.10
1.All Dimension Are In Millimeters.
2.Dimension Does Not Include Mold Protrusions.
Part Marking Information & Packing : SOT-223
A
B
C
E
F
ADVANCED POWER ELECTRONICS CORP.
K
8805X-&&
Part Number :
Y
WWSSS
Output Voltage : ADJ : Blank
Date Code (YWWSSS)
Y：Last Digit Of The Year
WW：Week
SSS：Sequence
E
F
BD
C
K
G
APE8805K : 8805
APE8805KR : 8805R
10
15 : 1.5V 25 : 2.5V 30 : 3.0V 20 : 2.0V
18 : 1.8V 28 : 2.8V 33 : 3.3V