AME, Inc.
AME1300
300mA CMOS LDO with RESET Function
n
General Description
The AME1300 combines a Low Dropout Regulator and
a Microprocessor Reset Monitor in a space-saving 8-Pin
MSOP package. Total supply current is 50µA(typical),20
to 60 times lower than in bipolar regulators .
The AME1300 has an extremely precise output with a
typical accuracy of
±1.5%.
Other key features include
ultra low noise operation, very low dropout voltage and
internal feed-forward compensation for fast response to
step changes in load. The AME1300 incorporates both
over-temperature and over-current protection. When the
shutdown control EN is low, the regulator output voltage
falls to zero,RESET output remains valid and supply cur-
rent is reduced to 10µA(typical). The AME1300 is stable
with an output capacitor of only 2.2µF and has a mini-
mum output current of 300 mA.
An active low RESET is asserted when the detected
voltage ( V
DET
) falls below the reset voltage threshold.
The reset output remains low for 300msec(typical) after
V
DET
rises above reset threshold. The AME1300 also has
a fast wake up response time (10µsec typically) when
released from shutdown.
n
Applications
l
l
l
l
Instrumentation
Portable Electronics
Wireless Devices
Cellular / GSM / CDMA Phones
l
PC Peripherals
l
Battery Powered Widgets
n
Typical Applications
RESET
RESET
V
DET
V
DET
V
DET
and V
OUT
can be
connected together
V
OUT
V
OUT
V
IN
V
IN
GND
1300
NC
Bypass
EN
SHUTDOWN
CONTROL
470pF
n
Features
l
LDO with intergrated Microprocessor Reset
Monitor Functionality
l
Guaranteed 300mA Output
l
Accurate to within 1.5%
l
50µA Quiescent Current
l
Over-Temperature Shutdown
l
Current Limiting
l
Short Circuit Current Fold-back
l
Noise Reduction Bypass Capacitor
l
Power-Saving Shutdown Mode
l
Space-Saving MSOP Package
l
Factory Pre-set Output Voltages
l
Low Temperature Coefficient
CBypass
(Option)
n
Pin Configuration
MSOP-8
Top View
8
7
6
5
1300
Xyww
1.
2.
3.
4.
5.
6.
7.
8.
RESET
V
OUT
GND
Bypass
EN
NC
V
IN
V
DET
1
2
3
4
Note: X represents the regulator
output voltage. yww represents
the date code.
Please contact AME for details
1
AME, Inc.
AME1300
300mA CMOS LDO with RESET Function
n
Ordering Information
AME1300 xEQA xxx
Voltage
270:
V=2.7V
280:
V=2.8V
285:
V=2.85V
300:
V=3.0V
Voltage Symbol
H:
2.7V
C:
2.8V
J:
2.85V
B:
3.0V
Part Number
AME1300HEQA270
Marking
1300
Hyww
1300
Cyww
1300
Jyww
1300
Byww
Output Voltage
2.7V
Package
MSOP-8
Operating Temp. Range
- 40
o
C to + 85
o
C
AME1300CEQA280
2.8V
MSOP-8
- 40
o
C to + 85
o
C
AME1300JEQA285
2.85V
MSOP-8
- 40
o
C to + 85
o
C
AME1300BEQA300
3.0V
MSOP-8
- 40
o
C to + 85
o
C
Please consult AME sales office or authorized Rep./Distributor for other voltage accuracy and package type avail-
ability.
2
AME, Inc.
AME1300
300mA CMOS LDO with RESET Function
n
Absolute Maximum Ratings
Parameter
Input Voltage
Output Current
Output Voltage
ESD Classification
Maximum
7
P
D
/ (V
IN
- V
O
)
GND - 0.3 to V
IN
+ 0.3
B
Unit
V
mA
V
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
n
Recommended Operating Conditions
Parameter
Ambient Temperature Range
Junction Temperature
Rating
- 40 to + 85
- 40 to + 125
Unit
o
C
C
o
n
Thermal Information
Parameter
Thermal Resistance (
θ
jc
)
Thermal Resistance (
θ
ja
)
Maximum Junction Temperature
Maximum Lead Temperature (10 Sec)
MSOP-8
MSOP-8
Maximum
39
206
150
300
Unit
o
C/W
C/W
o
o
C
C
o
3
AME, Inc.
AME1300
300mA CMOS LDO with RESET Function
n
Electrical Specifications
TA= 25
0
C unless otherwise noted, V
IN
=V
O(NOM)
+1V, I
O
=1mA, V
EN
=V
IN,
Parameter
Input Voltage
Output Voltage Accuracy
Symbol
V
IN
V
O
I
O
=1mA
I
O
=0.1mA
Dropout Voltage
V
DROPOUT
V
O
=V
O(NOM)
-2.0%
I
O
=100mA
300mA
Output Current
Current Limit
Short Circuit Current
Quiescent Current
Ground Pin Current
Line Regulation
Load Regulation
Over Temerature Shutdown
Over Temerature Hysterisis
V
O
Temperature Coefficient
Power Supply Rejection
I
O
I
LIM
I
SC
I
Q
I
GND
REG
LINE
REG
LOAD
OTS
OTH
TC
PSRR
I
O
=100mA
C
O
=2.2
µ
F
f=10Hz to 100kHz
I
O
=10mA
V
IN
=5V
V
IN
=5V
V
EN
=V
IN
, V
IN
=5V
V
EN
=0V, V
IN
=5V
V
IN
=5V, V
O
=0V, V
EN
=0
I
O
=0.4mA, V
EN
=0
0
f=1kHz
V
O
>1.2V
V
O
>1.2V
V
O
=0V
I
O
=0mA
I
O
=1mA to 300mA
I
O
=1mA
V
IN
=V
O
+1 to V
O
+2
2.0V<= V
O
< 4.0V
4.0V <= Vo
-0.1
-0.4
-1
600
600
800
300
40
40
0.02
0.2
0.2
150
30
30
50
0.1
0.4
1
600
50
Test Condition
Min
Note 1
-1.5
1
70
210
Typ
Max
6
1.5
30
130
390
mA
mA
mA
µ
A
µ
A
%
%
%
o
o
Units
V
%
mV
I
O
=1mA to 300mA
C
C
ppm/
o
C
dB
Output Voltage Noise
eN
V
EH
V
EL
Co=2.2
µ
F
2.0
0
30
Vin
0.4
0.5
0.1
10
0.4
µ
Vrms
V
V
µ
A
µ
A
µ
A
V
EN Input Threshold
EN Input Bias Current
Shutdown Supply Current
Shutdown Output Voltage
I
EH
I
EL
I
SD
V
O,SD
Note1:V
IN(min)
=V
OUT
+V
DROPOUT
4
AME, Inc.
AME1300
300mA CMOS LDO with RESET Function
n
Electrical Specifications(contd.)
RESET Output
Parameter
V
DET
Range
Symbol
V
DET
Test Condition
TA=-40~85
o
C
TA=25
o
C
Reset Threshold
V
TH
TA=-40~85 C
RESET Threshold Tempco
RESETB Output Voltage Low
RESETB Output Voltage High
V
DET
to Reset Delay
Reset Active Timeout Period*
V
OL
V
OH
T
D1
T
D2
V
DET
<V
TH
min
V
DET
>V
TH
max
I
SINK
=1.2mA,
TA= -40~85
o
C
I
SOURCE
=0.5mA,
TA= -40~85
o
C
o
Min
1
2.59
2.58
Typ
Max
5.5
Units
V
2.63
2.67
V
2.68
30
0.5
0.8V
DET
40
140
210
500
ppm
V
V
µ
S
mS
V
DET
= V
TH
- 100mV, TA= -40 ~ 85
o
C
TA= -40 ~ 85
o
C
5
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