AME, Inc.
1
AME8863
600mA CMOS LDO
n
Typical Application
n
Functional Block Diagram
l
Very Low Dropout Voltage
l
Guaranteed 600mA Output
l
Accurate to within 1.5%
l
30
A Quiescent Current
l
Over-Temperature Shutdown
l
Current Limiting
l
Short Circuit Current Fold-back
l
Power Good Output Function
l
Power-Saving Shutdown Mode
l
Space-Saving SOT-26
l
Factory Pre-set Output Voltages
l
Low Temperature Coefficient
The AME8863 family of positive, linear regulators fea-
ture low quiescent current (30
A typ.) with low dropout
voltage, making them ideal for battery applications. The
space-saving SOT-26 package is attractive for "Pocket"
and "Hand Held" applications.
These rugged devices have both Thermal Shutdown,
and Current Fold-back to prevent device failure under the
"Worst" of operating conditions.
An additional feature is a "Power Good" detector, which
pulls low when the output is out of regulation.
The AME8863 is stable with an output capacitance of
2.2
F or greater.
l
Instrumentation
l
Portable Electronics
l
Wireless Devices
l
Cordless Phones
l
PC Peripherals
l
Battery Powered Widgets
l
Electronic Scales
n
General Description
n
Features
n
Applications
AME8863
OUTPUT
INPUT
C2
2.2
F
C1
1
F
GND
OUT
EN
PG
IN
GND
OUT
IN
PG
Overcurrent
Shutdown
Thermal
Shutdown
EN
Vref
Vref x90%
Vrefx110%
AMP
R2
R1
AME, Inc.
2
600mA CMOS LDO
AME8863
n
Pin Configuration
AME8863
1. VIN
2. GND
3. EN
4. PG
5. GND
6. VOUT
* Epoxy: Conductive
n
Ordering Information
SOT-26
Top View
1
3
2
6
4
5
AME8863
Operating Temperature Range
Number of Pins
Package Type
Pin Configuration
Special Feature
AME8863 x x x
x
x
x
Voltage
A: 1. VIN
E: -40
O
C to 85
O
C
E: SOT-2X
Y: 6
150: V=1.5V
L: Low Profile
(SOT-26) 2. GND
180: V=1.8V
Y: Lead Free & Low Profile
3. EN
300: V=3.0V
Z: Lead Free
4. PG
330: V=3.3V
5. GND
6. VOUT
Voltage
Special Feature
Pin
Configuration
Operating
Temperature Range
Package
Type
Number of
Pins
AME, Inc.
3
AME8863
600mA CMOS LDO
n
Ordering Information
Note: ww represents the date code and pls refer to Date Code Rule before Package Dimension.
* A line on top of the first letter represents lead free plating such as AZY
Please consult AME sales office or authorized Rep./Distributor for output voltage and package type availability.
Part Number
Marking*
Output Voltage Package Operating Temp. Range
AME8863AEEY150
AZYww
1.5V
SOT-26
- 40
o
C to + 85
o
C
AME8863AEEY150L
AZYww
1.5V
TSOT-26
- 40
o
C to + 85
o
C
AME8863AEEY150Z
AZYww
1.5V
SOT-26
- 40
o
C to + 85
o
C
AME8863AEEY150Y
AZYww
1.5V
TSOT-26
- 40
o
C to + 85
o
C
AME8863AEEY180
AZRww
1.8V
SOT-26
- 40
o
C to + 85
o
C
AME8863AEEY180L
AZRww
1.8V
TSOT-26
- 40
o
C to + 85
o
C
AME8863AEEY180Z
AZRww
1.8V
SOT-26
- 40
o
C to + 85
o
C
AME8863AEEY180Y
AZRww
1.8V
TSOT-26
- 40
o
C to + 85
o
C
AME8863AEEY300
AZZww
3.0V
SOT-26
- 40
o
C to + 85
o
C
AME8863AEEY300L
AZZww
3.0V
TSOT-26
- 40
o
C to + 85
o
C
AME8863AEEY300Z
AZZww
3.0V
SOT-26
- 40
o
C to + 85
o
C
AME8863AEEY300Y
AZZww
3.0V
TSOT-26
- 40
o
C to + 85
o
C
AME8863AEEY330
AZJww
3.3V
SOT-26
- 40
o
C to + 85
o
C
AME8863AEEY330L
AZJww
3.3V
TSOT-26
- 40
o
C to + 85
o
C
AME8863AEEY330Z
AZJww
3.3V
SOT-26
- 40
o
C to + 85
o
C
AME8863AEEY330Y
AZJww
3.3V
TSOT-26
- 40
o
C to + 85
o
C
AME, Inc.
4
600mA CMOS LDO
AME8863
n
Absolute Maximum Ratings
Caution: Stress above the listed absolute rating may cause permanent damage to the device
n
Recommended Operating Conditions
n
Thermal Information
Parameter
Rating
Unit
Ambient Temperature Range
- 40 to + 85
o
C
Junction Temperature
- 40 to + 125
o
C
Parameter
Maximum
Unit
Input Voltage
7
V
Output Current
P
D
/ (V
IN
- V
O
)
A
Output Voltage
GND - 0.3 to V
IN
+ 0.3
V
ESD Classification
B
* Measure
JC
on center of molding compound if IC has no tab.
Parameter
Package Die Attached Symbol
Maximum
Unit
Thermal Resistance *
(Junction to Case)
JC
81
o
C / W
Thermal Resistance
(Junction to Ambient)
JA
260
o
C / W
Internal Power Dissipation
P
D
400
mW
Maximum Junction Temperature
150
o
C
Maximum Lead Temperature (10 Sec)
300
o
C
SOT-26
Conductive
AME, Inc.
5
AME8863
600mA CMOS LDO
Parameter
Symbol
Min
Typ
Max
Units
Input Voltage
V
IN
Note 1
6
V
Output Voltage Accuracy
V
O
-1.5
1.5
%
1.4V<=V
O(NOM)
<=2.0
1400
Dropout Voltage
V
DROPOUT
2.0V<V
O(NOM)
<=2.8V
800
2.8V<V
O(NOM)
600
Output Current
I
O
600
mA
Current Limit
I
LIM
600
800
mA
Short Circuit Current
I
SC
300
600
mA
Quiescent Current
I
Q
30
50
A
Ground Pin Current
I
GND
35
A
1.4V < V
O
<= 2.0V
-0.15
0.15
2.0V < V
O
< 4.0V
-0.1
0.02
0.1
Load Regulation
REG
LOAD
0.2
1
%
Over Temerature Shutdown
OTS
150
o
C
Over Temerature Hysterisis
OTH
30
o
C
V
O
Temperature Coefficient
TC
30
ppm/
o
C
f=1kHz
75
PSRR
f=10kHz
55
dB
f=100kHz
30
V
EH
2.0
Vin
V
V
EL
0
0.4
V
I
EH
0.1
A
I
EL
0.5
A
Shutdown Supply Current
I
SD
0.5
1
A
PG Leakage Current
I
LC
1
A
PG Voltage Rating
V
PG
6
V
PG Voltage Low
V
OL
0.4
V
%
I
SINK
=0.4mA
V
O
in regulation
V
PG
=6V
Vrms
EN Input Threshold
EN Input Bias Current
f=10Hz to 100kHz
I
O
=10mA
Co=2.2
F
30
V
IN
=2.7V to 6V
Line Regulation
REG
LINE
I
O
=1mA
V
IN
=V
O
+1 to V
O
+2
V
IN
=2.7V to 6V
I
O
=1mA to 600mA
V
EN
=0V, V
IN
=2.7V to 6V
V
IN
=5V, V
O
=0V, V
EN
<V
EL
Power Supply Rejection
I
O
=100mA
C
O
=2.2
F
ceramic
Output Voltage Noise
eN
V
EN
=V
IN
, V
IN
=2.7V to 6V
V
O
<0.8V
I
O
=0mA
I
O
=1mA to 600mA
See
chart
I
O
=600mA
V
O
=V
O(NOM)
-2.0%
V
O
>1.2V
mV
V
O
>1.2V
Test Condition
I
O
=1mA
n
Electrical Specifications
TA = 25
O
C unless otherwise noted
Note1:V
IN(min)
=V
OUT
+V
DROPOUT
Note2: To prevent the Short Circuit Current protection feature from being prematurely activated, the input voltage
must be applied before a current source load is applied.
AME, Inc.
6
600mA CMOS LDO
AME8863
The AME8863 family of CMOS regulators contain a
PMOS pass transistor, voltage reference, error amplifier,
over-current protection, thermal shutdown, and power
good function.
The P-channel pass transistor receives data from the
error amplifier, over-current shutdown, and thermal pro-
tection circuits. During normal operation, the error ampli-
fier compares the output voltage to a precision reference.
Over-current and Thermal shutdown circuits become ac-
tive when the junction temperature exceeds 150
o
C, or
the current exceeds 600mA. During thermal shutdown,
the output voltage remains low. Normal operation is re-
stored when the junction temperature drops below 120
o
C.
The AME8863 switches from voltage mode to current
mode when the load exceeds the rated output current.
This prevents over-stress. The AME8863 also incorpo-
rates current foldback to reduce power dissipation when
the output is short circuited. This feature becomes ac-
tive when the output drops below 0.8volts, and reduces
the current flow by 65%. Full current is restored when
the voltage exceeds 0.8 volts.
The Enable pin normally floats high. When actively,
pulled low, the PMOS pass transistor shuts off, and all
internal circuits are powered down. In this state, the qui-
escent current is less than 1
A. This pin behaves much
like an electronic switch.
n
Detailed Description
n
External Capacitors
n
Enable
n
Power Good
The AME8863 includes the Power Good feature. When
the output is not within +10% of the specified voltage, it
pulls low. This can occur under the following conditions:
1) Input Voltage too low.
2) During Over-Temperature.
3) During Over-Current.
4) If output is pulled up.
(Note: PG pin is an open-drain output.)
The AME8863 is stable with an output capacitor to
ground of 2.2
F or greater. Ceramic capacitors have the
lowest ESR, and will offer the best AC performance. Con-
versely, Aluminum Electrolytic capacitors exhibit the high-
est ESR, resulting in the poorest AC response. Unfortu-
nately, large value ceramic capacitors are comparatively
expensive. One option is to parallel a 0.1
F ceramic
capacitor with a 10
F Aluminum Electrolytic. The benefit
is low ESR, high capacitance, and low overall cost.
A second capacitor is recommended between the in-
put and ground to stabilize Vin. The input capacitor should
be at least 0.1
F to have a beneficial effect.
All capacitors should be placed in close proximity to
the pins. A "Quiet" ground termination is desirable. This
can be achieved with a "Star" connection.
AME, Inc.
7
AME8863
600mA CMOS LDO
Ground Current vs. Input Voltage
Load Step (1mA-600mA)
Drop Out Voltage vs. Output Voltage
Power Supply Rejection Ratio
Safe Operating Area
Power Supply Rejection Ratio
G
r
o
u
n
d
C
u
r
r
e
n
t
(
A
)
Input Voltage (V)
0
5
10
15
20
25
30
35
40
45
0
1
2
3
4
5
6
7
8
85
O
C
25
O
C
P
S
R
R
(
d
B
)
100mA
10mA
1mA
100
A
100mA
100
A
C
L
=2.2
F Tantalum
C
BYP
=0
-80
-70
-60
-50
-40
-30
-20
-10
0
10
1K
100K
Frequency (Hz)
10M
-80
-70
-60
-50
-40
-30
-20
10
1K
100K
10M
P
S
R
R
(
d
B
)
Frequency (Hz)
C
L
=2.2
F Tantalum
C
BYP
=1000pF
100mA
100
A
1mA
10mA
100mA
100
A
10
100
600
0.1
1.0
8.0
O
u
t
p
u
t
C
u
r
r
e
n
t
(
m
A
)
Input-Output Voltage Differential (V)
Tantalum
TIME (20mS/DIV)
I
L
(
2
0
0
m
A
/
D
I
V
)
V
o
(
1
0
m
V
/
D
I
V
)
I
Load
Output
C
L
=2.2
F
CIN=2.2
F
0
Output Voltage (V)
1400
1200
1000
800
600
400
200
1
2
3
4
5
6
Top to Bottom
I
LOAD
=600mA
I
LOAD
=500mA
I
LOAD
=400mA
I
LOAD
=300mA
I
LOAD
=200mA
I
LOAD
=100mA
D
r
o
p
O
u
t
V
o
l
t
a
g
e
(
m
V
)
0
AME, Inc.
8
600mA CMOS LDO
AME8863
Short Circuit Response
Overtemperature Shutdown
Current Limit Response
Chip Enable Transient Response
Line Transient Response
Quiescent Current vs. Temp.
Q
u
i
e
s
c
e
n
t
C
u
r
r
e
n
t
(
u
A
)
Temperature (
o
C)
26
28
30
32
34
36
38
40
-20
0
20
40
60
80
V
O
U
T
(
1
0
m
V
/
D
I
V
)
V
I
N
(
1
V
/
D
I
V
)
C
LOAD
=2.2
F
I
LOAD
=1mA
V
OUTDC
=3.3V
V
INDC
=4.5V
TIME (200mS/DIV)
TIME (2mS/DIV)
C
LOAD
=2.2
F
C
IN
=1
F
R
LOAD
<100m
V
O
U
T
(
1
V
/
D
I
V
)
I
O
U
T
(
2
0
0
m
V
/
D
I
V
)
I
O
U
T
(
2
0
0
m
A
/
D
I
V
)
V
O
U
T
(
1
V
/
D
I
V
)
TIME (2mS/DIV)
C
LOAD
=2.2
F
C
IN
=1.0
F
R
LOAD
=3.3
V
OUTNOM
=3.3V
V
O
U
T
(
1
V
/
D
I
V
)
I
O
U
T
(
2
0
0
m
A
/
D
I
V
)
TIME (0.5Sec/DIV)
0
0
R
LOAD
=6.6
0
0
TIME (1mS/DIV)
C
L
=2
F
R
L
=10
O
u
t
p
u
t
(
1
V
/
D
I
V
)
E
n
a
b
l
e
(
2
V
/
D
I
V
)
AME, Inc.
9
AME8863
600mA CMOS LDO
n
Date Code Rule
Year
A
A
A
W
W
xxx0
A
A
A
W
W
xxx1
A
A
A
W
W
xxx2
A
A
A
W
W
xxx3
A
A
A
W
W
xxx4
A
A
A
W
W
xxx5
A
A
A
W
W
xxx6
A
A
A
W
W
xxx7
A
A
A
W
W
xxx8
A
A
A
W
W
xxx9
Marking
Date Code
n
Tape & Reel Dimension
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SOT-26
8.00.1 mm
4.00.1 mm
3000pcs
1801 mm
Carrier Tape, Number of Components Per Reel and Reel Size
SOT-26
PIN 1
W
P
AME
AME
AME, Inc.
10
600mA CMOS LDO
AME8863
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
TSOT-26
8.00.1 mm
4.00.1 mm
3000pcs
1801 mm
Carrier Tape, Number of Components Per Reel and Reel Size
TSOT-26
PIN 1
W
P
AME
AME
n
Tape & Reel Dimension
AME, Inc.
11
AME8863
600mA CMOS LDO
n
Package Dimension
SOT-26
Top View
Side View
Front View
L
1
S1
D
e
E
H
b
A
A
1
Side View
L
1
Top View
S1
D
e
E
H
Front View
b
A
A
1
TSOT-26
MIN
MAX
MIN
MAX
A
A
1
0.00
0.15
0.0000
0.0059
b
0.30
0.55
0.0118
0.0217
D
2.70
3.10
0.1063
0.1220
E
1.40
1.80
0.0551
0.0709
e
H
2.60
3.00
0.10236 0.11811
L
1
0
o
10
o
0
o
10
o
S
1
0.37REF
0.0146REF
0.95REF
0.0374REF
1.90 BSC
0.0748 BSC
SYMBOLS
MILLIMETERS
INCHES
1.20REF
0.0472REF
MIN
MAX
MIN
MAX
A+A
1
0.90
1.25
0.0354
0.0492
b
0.30
0.50
0.0118
0.0197
c
0.09
0.25
0.0035
0.0098
D
2.70
3.10
0.1063
0.1220
E
1.40
1.80
0.0551
0.0709
e
H
2.40
3.00
0.09449 0.11811
L
1
0
o
10
o
0
o
10
o
S
1
1.90 BSC
0.07480 BSC
SYMBOLS
MILLIMETERS
INCHES
0.35BSC
0.0138BSC
0.95BSC
0.0374BSC
Life Support Policy:
These products of AME, Inc. are not authorized for use as critical components in life-support
devices or systems, without the express written approval of the president
of AME, Inc.
AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and
advises its customers to obtain the latest version of relevant information.
AME, Inc. , November 2005
Document: 2006/2095-DS8863-C
Corporate Headquarter
U.S.A.(Subsidiary)
AME, Inc.
Analog Microelectronics, Inc.
2F, 302 Rui-Guang Road, Nei-Hu District 3100 De La Cruz Blvd., Suite 201
Taipei 114, Taiwan. Santa Clara, CA. 95054-2046
Tel: 886 2 2627-8687 Tel : (408) 988-2388
Fax: 886 2 2659-2989
Fax: (408) 988-2489
www.ame.com.tw
E-Mail: sales@ame.com.tw
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