Power APE8805A 600ma low dropout linear regulator with shutdown Datasheet

Advanced Power
Electronics Corp.
APE8805A
600mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN
DESCRIPTION
FEATURES
The APE8805A is a low dropout, positive linear regulator with very low quiescent current. The APE8805A
can supply 600mA output current with low dropout
voltage at about 600mV. The BP pin with a 10nF
bypass capacitor can help reduce the output noise
level. The shutdown function can provide remote
control for the external signal to decide the on/off
state of APE8805A. With a logic high level at SHDN
pin, the device is in the on state, and vice versa.
● Low Dropout Voltage of 600mV at 600mA
● Guaranteed 600mA Output Current
● Very Low Quiescent Current at 30µA
● Max. ± 2% Output Voltage Accuracy
● Needs Only 1µF Capacitor for Stability
● Thermal Shutdown Protection
● Current Limit Protection
● Active Low Shutdown Control
● Low-ESR Ceramic Capacitor for Output Stability.
● Tiny package: SOT-23-5L
● RoHS Compliant
The APE8805A regulator is able to operate with output
capacitors as small as 1µF for stability. Other than
the current limit protection, APE8805A also offers the
on chip thermal shutdown feature providing protection
against overload or any condition when the ambient
temperature exceeds the maximum junction temperature.
The APE8805A offers high precision output voltage of
± 2%. It is available in fixed output voltages including
1.5V, 1.8V, 2.0V, 2.5V, 2.8V, 3.0V, and 3.3V.
The APE8805A is housed in low-profile, space-saving
5-lead SOT-23 package.
PIN ASSIGNMENTS
1
4
2
3
● DSC
● Wireless Devices
● LCD Modules
● Battery Power Systems
● Card Readers
● PDA
ORDERING INFORMATION
APE8805A-□□□
SOT-23-5L(Y5)
5
APPLICATIONS
TOP VIEW
1. VIN
2. GND
3. SH DN
4. BP
5. VOUT
P: Pb Free with Commercial
Standard (RoHS Compliant)
Package Type
Y5: SOT-23-5L
Output Voltage
15: 1.5V
28: 2.8V
18: 1.8V
30: 3.0V
25: 2.5V
33: 3.3V
20: 2.0V
Figure 1. Pin Assignment of APE8805A
SOT-23-5L Marking
APE8805A-15Y5P
Product
Code
Fi
APE8805A-28Y5P
Product
Code
Fn
APE8805A-18Y5P
Fk
APE8805A-30Y5P
Fr
APE8805A-25Y5P
Fm
APE8805A-33Y5P
Fs
APE8805A-20Y5P
FE
Part Number
Data and specifications subject to change without notice.
Part Number
1
201003129
Advanced Power
Electronics Corp.
APE8805A
TYPICAL APPLICATION CIRCUIT
VIN
VIN
CIN
1µF
COUT
1µF
APE8805A
GND
VSHDN
VOUT
VOUT
BP
SHDN
CBP
10nF
Figure 2. Typical Application Circuit of APE8805A
Note:To prevent oscillation, it is recommended to use minimum 1µF X7R or X5R dielectric capacitors if ceramics are
used as input/output capacitors.
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 from oscillation.
The APE8805A is stable with an output capacitor 1µF or greater. The larger output capacitor will be required for
application with larger load transients. The large output capacitor could reduce output noise, improve stability,
and PSRR.
GND
Common ground pin
Reference Noise Bypass , the Bypass Capacitor >= 1nF
BP
Chip Enable (Active High)
SHDN
BLOCK DIAGRAM
RSEN
VIN
VOUT
PMOS
Current
Limit
SHDN
Power
Shutdown
_
Thermal
Shutdown
Error
Amp
R1
+
Vref
1.2V
BP
R2
GND
Figure 3. Block Diagram of APE8805A
2
Advanced Power
Electronics Corp.
APE8805A
ABSOLUTE MAXIMUM RATINGS
● Supply Input Voltage (VIN)----------------------------------------------------------------------------------- + 6V
● Maximum Junction Temperature (TJ)-------------------------------------------------------------------- + 150℃
● Power Dissipation SOT-23-5L (PD)----------------------------------------------------------------------- + 0.4W
● Package Thermal Resistance SOT-23-5L (θJA)-------------------------------------------------------- + 250℃/W
● Storage Temperature Range (TS)------------------------------------------------------------------------- - 65 to + 150℃
● Lead Temperature (Soldering, 10 sec.) (TLEAD)-------------------------------------------------------- + 260℃
Note:Stresses beyond those listed under “Absolute Maximum Ratings" may cause permanent damage to the device.
RECOMMENDED OPERATING CONDITIONS
● Input Voltage (VIN)-------------------------------------------------------------------------------------------- + 2.8 to + 5.5V
● Operating Junction Temperature Range (TJ)---------------------------------------------------------- - 40 to + 125℃
Ambient temperature ( TA )--------------------------------------------------------------------------------- -40 to 85ºC
ELECTRICAL CHARACTERISTICS
(VIN=VOUT+1V or VIN=2.8V whichever is greater, SHDN pin connected to VIN , CIN=1µF, COUT=1µF, TA=25 ºC,
unless otherwise specified)
Parameter
Current Limit
Quiescent Current
Standby Current
Symbol
Conditions
ILIMIT
RLoad=1Ω
IQ
IO= 0mA
ISTBY
∆VOUT
IO= 1mA
Dropout Voltage (Note 1)
VDROP
IO=600mA
∆VLINE
Load Regulation (Note 2)
Typ
Max
600
Unit
mA
30
VIN=2.8~5V, Output Off
Output Voltage Accuracy
Line Regulation
Min
-2
1.5V ≤ VOUT ≤ 2.0V
1400
2.0V < VOUT ≤ 2.8V
800
2.8V < VOUT ≤ 4.5V
600
50
µA
0.1
µA
+2
%
mV
IO=1mA, VIN=VOUT +1V to 5V
1
5
mV
∆VLOAD
IO=0mA to 600mA
13
50
mV
PSRR
VIN=VOUT+1V
fRIPPLE = 120Hz, COUT = 1µF
60
Output Noise
∆n
CBP=10nF, f=1KHz, VIN=5V
0.4
Temperature Coefficient
TC
IOUT = 1mA, VIN = 5V
50
ppm/ ºC
TSD
160
ºC
Thermal Shutdown Hysteresis
∆TSD
25
ºC
Shutdown Pin Current
I SHDN
Noise Bypass Terminal Voltage
VREF
Ripple Rejection
Thermal Shutdown Temperature
dB
µV
Hz
0.1
1.23
µA
V
3
Advanced Power
Electronics Corp.
Shutdown Pin Voltage (ON)
V SHDN (ON)
Shutdown Pin Voltage (OFF)
V SHDN (OFF)
Shutdown Exit Delay Time
∆T
APE8805A
1.4
V
0.4
CBP=0.1uF, COUT=1uF, IOUT=30mA
300
V
µs
Note 1:The dropout voltage is defined as VIN-VOUT, which is measured when VOUT drops 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.
APPLICATION INFORMATION
The APE8805A is a low dropout linear regulator that
could provide 600mA output current at dropout voltage about 600mV. Current limit and on chip thermal
shutdown features provide protection against any
combination of overload or ambient temperature that
could exceed maximum junction temperature.
1. Output and Input Capacitor
The APE8805A 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 improves transient 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 30mΩ to 50mΩ ESR range between device outputs and ground for stability. The
APE8805A is designed to be stable with low ESR
ceramic capacitors and higher values of capacitors and ESR could improve output stability.
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 the device, APE8805A 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. 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. Shutdown Operation
The APE8805A is shutdown by pulling the SHDN
input low, and turned on by driving the SHDN
high. If this function is not used, the SHDN
input should be tied to VIN to keep the regulator on at all times (the SHDN must not be
left floating).
4
Advanced Power
Electronics Corp.
APE8805A
50
850
45
800
Current Limit(mA)
Quiescent Current(uA)
TYPICAL PERFORMANCE CURVE
40
750
35
700
650
30
3.0
3.5
4.0
4.5
5.0
5.5
3.5
6.0
4.0
Figure 4. Quiescent Current vs. Input Voltage
5.0
5.5
6.0
Figure 5. Current limit vs. Input Voltage
850
60
Quiescent Current(uA)
Current Limit (mA)
4.5
Input Voltage(v)
Input Voltage(v)
800
750
700
50
40
30
20
650
-40
-20
0
20
40
60
80
100
-40
120
-20
0
20
40
60
80
100
120
o
o
Temperaure( C)
Temperature( C)
Figure 6. Current limit vs. Temperature
Figure 7. Quiescent Current vs. Temperature
1000
o
Tj=-40 C
o
Tj=25 C
o
Tj=85 C
o
Tj=125 C
0.999
800
0.998
Dropout Voltage(mV)
Normalized Output Voltage
1.000
0.997
0.996
0.995
0.994
0.993
600
400
200
0.992
0.991
0.990
-25
0
25
50
75
100
125
0
0
100
200
300
400
500
600
o
Temperature( C)
Figure 8. Output Voltage vs. Temperature
Loading Current(mA)
Figure 9. Dropout Voltage vs. Temperature
5
Advanced Power
Electronics Corp.
APE8805A
TYPICAL PERFORMANCE CURVE (Continued)
VIN=5V IOUT=150mA CIN=1uF COUT=1uF
VOUT
VOUT
SHDN
IOUT
Figure 10. Shutdown Function
Figure 11. Load Transient Response
VIN=5V IOUT=1mA CIN=1uF COUT=1uF
VIN=4~5V IOUT=10mA CIN=1uF COUT=1uF
VOUT
VIN
VOUT
SHDN
Figure 12. Line Transient Response
Figure 13. Shutdown Exit Delay Time
6
ADVANCED POWER ELECTRONICS CORP.
Package Outline : SOT-23-5L
Millimeters
SYMBOLS
MIN
NOM
MAX
A
1.00
1.10
1.30
A1
0.00
---
0.10
A2
0.70
0.80
0.90
b
0.35
0.40
0.50
C
0.10
0.15
0.25
D
2.70
2.90
3.10
E
1.50
1.60
1.80
e
---
1.90(TYP)
---
H
2.60
2.80
3.00
L
0.37
---
---
θ1
1°
5°
9°
e2
---
0.95(TYP)
---
Note 1:Package Body Sizes Exclude Mold Flash Protrusions or Gate Burrs.
Note 2:Tolerance ± 0.1000 mm(4mil) Unless Otherwise Spe- cified.
Note 3:Coplanarity:0.1000 mm
Note 4:Dimension L Is Measured in Gage plane.
Part Marking Information & Packing : SOT-23 -5L
Part : F&(Identification code)
F&XXX
APE8805A-15Y5P
Fi
APE8805A-28Y5P
Fn
APE8805A-18Y5P
Fk
APE8805A-30Y5P
Fr
APE8805A-25Y5P
APE8805A-20Y5P
Fm
FE
APE8805A-33Y5P
Fs
Date Code
7
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