Power APE8800A-25Y5P 300ma low dropout linear regulator with shutdown Datasheet

Advanced Power
Electronics Corp.
APE8800A
300mA Low Dropout Linear
Regulator with Shutdown
Description
Features
The APE8800A is a low dropout, positive linear regulator with very low quiescent current. The APE8800A
can supply 300mA output current with low dropout
voltage at about 250mV. 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 APE8800A. With a logic high level at SHDN
pin, the device is in the on state, and vice versa.
● Low Dropout Voltage of 250mV at 300mA
● Guaranteed 300mA 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-23-5
● RoHS Compliant
The APE8800A regulator is able to operate with output
capacitors as small as 1µF for stability. Other than
the current limit protection, APE8800A 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 APE8800A offers high precision output voltage of
± 2%. It is available in fixed output voltages including
1.5V, 1.8V, 2.5V, 2.8V, 3.0V, and 3.3V.
The APE8800A is housed in low-profile, space-saving
5-lead SOT-23-5 package.
Pin Assignments
1
4
2
3
● DSC
● Wireless Devices
● LCD Modules
● Battery Power Systems
● Card Readers
● PDA
Ordering Information
APE8800A-□□□
SOT-23-5 Package
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-23-5
Output Voltage
15: 1.5V
28: 2.8V
18: 1.8V
30: 3.0V
25: 2.5V
33: 3.3V
Figure 1. Pin Assignment of APE8800A
SOT-23-5 Marking
Part Number
APE8800A-15Y5P
Data and specifications subject to change without notice.
Product
Part Number
Code
Fc
APE8800A-28Y5P
Product
Code
Fe
APE8800A-18Y5P
Fb
APE8800A-30Y5P
Ff
APE8800A-25Y5P
Fd
APE8800A-33Y5P
Fh
200214077-1/7
Advanced Power
Electronics Corp.
APE8800A
Typical Application Circuit
VIN
VIN
CIN
1µF
APE8800A
GND
VSHDN
VOUT
VOUT
SHDN
COUT
1µF
BP
CBP
10nF
Figure 2. Typical Application Circuit of APE8800A
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 APE8800A 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
BP
SHDN
Reference Noise Bypass ( the Bypass Capacitor >= 1nF )
Chip Enable (Active High)
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 APE8800A
2/7
Advanced Power
Electronics Corp.
APE8800A
Absolute Maximum Ratings
● Supply Input Voltage (VIN)----------------------------------------------------------------------------------- + 6V
● Maximum Junction Temperature (TJ)-------------------------------------------------------------------- + 150℃
● Power Dissipation SOT-23 (PD)--------------------------------------------------------------------------- + 0.4W
● Package Thermal Resistance SOT-23 (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
ILIMIT
IQ
ISTBY
Conditions
Min
RLoad=1Ω
300
IO= 0mA
Typ
∆VOUT
IO= 1mA
Dropout Voltage (Note 1)
VDROP
IO=300mA
Unit
mA
30
VIN=2.8~5V, Output Off
Output Voltage Accuracy
Max
-2
1.5V ≤ VOUT ≤ 2.0V
1100
2.0V < VOUT ≤ 2.8V
350
2.8V < VOUT ≤ 4.5V
250
50
µA
0.1
µA
+2
%
mV
Line Regulation
∆VLINE
IO=1mA, VIN=VOUT +1V to 5V
1
5
mV
Load Regulation (Note 2)
∆VLOAD
IO=0mA to 300mA
6
20
mV
Ripple Rejection
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
Shutdown Pin Current
I SHDN
Noise Bypass Terminal Voltage
VREF
Thermal Shutdown Temperature
Shutdown Pin Voltage (ON)
V SHDN (ON)
Shutdown Pin Voltage (OFF)
V SHDN (OFF)
Shutdown Exit Delay Time
∆T
dB
µV
Hz
ºC
0.1
1.23
V
1.4
V
0.4
CBP=0.1uF, COUT=1uF, IOUT=30mA
µA
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 300mA.
3/7
Advanced Power
Electronics Corp.
APE8800A
Application Information
The APE8800A is a low dropout linear regulator that
could provide 300mA output current at dropout voltage about 250mV. 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 APE8800A 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
APE8800A 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, APE8800A 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 APE8800A 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).
4/7
Advanced Power
Electronics Corp.
APE8800A
50
850
45
800
Current Limit(mA)
Quiescent Current(uA)
Typical Performance Curves
40
35
750
700
650
30
3.0
3.5
4.0
4.5
5.0
5.5
3.5
6.0
4.0
4.5
Figure 4. Quiescent Current vs. Input Voltage
5.5
6.0
Figure 5. Current limit vs. Input Voltage
60
Quiescent Current(uA)
850
Current Limit (mA)
5.0
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
500
o
-40 C
o
25 C
o
85 C
o
125 C
0.999
Dropout Voltage(mV)
Normalized Output Voltage
1.000
0.998
0.997
0.996
0.995
0.994
0.993
400
300
200
100
0.992
0.991
0.990
-25
0
25
50
75
100
o
Temperature( C)
Figure 8. Output Voltage vs. Temperature
125
0
0
50
100
150
200
250
300
Output Current (mA)
Figure 9. Dropout Voltage vs. Temperature
5/7
Advanced Power
Electronics Corp.
APE8800A
Typical Performance Curves (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
6/7
Advanced Power
Electronics Corp.
APE8800A
Outline Information
SOT-23-5 Package (Unit: mm)
A
DIMENSION IN MILLIMETER
MIN
NOM
MAX
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
SYMBOLS UNIT
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
1º
5º
9º
e1
---
0.95(TYP)
---
Note 1:Package Body Sizes Exclude Mold Flash Protrusions
or Gate Burrs.
Note 2:Tolerance ± 0.1000 mm(4mil) Unless Otherwise Specified.
Note 3:Coplanarity:0.1000 mm
Note 4:Dimension L Is Measured in Gage plane.
●
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