AMETHERM AME8818AEEV320Z

AME
Low Dropout
300mA CMOS Regulator
AME8818
n General Description
n Functional Block Diagram
The AME8818 is a CMOS linear regulator. It operated from
2.5V to 5.5V input voltage and delivers up to 300mA output
current. The AME8818 provide low quiescent current (70uA
typ) low dropout voltage (230mV @ 300mA typ), and excellent PSRR, thus marking them ideal for Data-Communications and battery applications.
IN
OUT
Overcurrent
Shutdown
A
Thermal
Shutdown
EN
R1
The AME8818 provide over temperature and over current
protected functions. It is stable with an output capacitance of
1uF or larger.
BYP/NC
Bandgap
Reference
R2
GND
n Features
l Input voltage range is from 2.5V to 5.5V
l Output voltage range is from 1.2V to 4.5V
n Typical Application
l Low Dropout: 230mV @ 300mA
l Guaranteed 300mA Drive Current
VOUT
VIN
l Factory Pre-set output voltage
IN
OUT
l Only 1uF Output Capacitor Required for
EN AME8818
Stability
l Provided OTP, current limit
CIN
1µF
l All AME’ s Green Products Meet RoHS
GND
NC
COUT
1µF
Standards
Figure 1
V IN
CIN
1µF
n Applications
EN
l Data-Communication
l Laptop, Palmtops, Notebook computers
l Battery Power Equipment
l Handheld Device
ON
VOUT
IN
EN
OUT
AME8818
BYP
GND
COUT
1µF
OFF
C2
1nF
Figure 2
l PCMCIA Cards
Rev.A.01
1
AME
Low Dropout
300mA CMOS Regulator
AME8818
n Pin Configuration
SOT-23
Top View
SOT-25
Top View
AME8818AEET
3
5
1. GND
4
2. OUT
AME8818
AME8818AEEV
1. IN
2. GND
3. IN
3. EN
AME8818
4. BYP
5. OUT
1
2
1
Die Attach:
2
3
Non-Conductive Epoxy
SOT-25
Top View
5
4
Conductive Epoxy
SOT-25
Top View
AME8818BEEV
1. IN
5
4
3. EN
4. NC
2
3
Die Attach:
1. EN
3. IN
AME8818
4. OUT
5. NC
5. OUT
1
AME8818CEEV
2. GND
2. GND
AME8818
Die Attach:
1
2
3
Die Attach:
Conductive Epoxy
Conductive Epoxy
n Pin Description
Pin Name
IN
Input voltage pin.
It should be decoupled with 1µF or greater capacitor.
GND
Ground connection pin.
OUT
LDO voltage regulator output pin.
It should be decoupled with a 1µF or greater value low ESR ceramic capacitor.
EN
The Enable pin normally floats high.
When pulled low, the PMOS pass transistors shut off, and all internal circuit are powered
down.
NC
No Internal Connection
BYP
2
Pin Description
Bypass capacitor connection.
In AME8818BEEV and AME8818CEEV, IC will select internal circuit to improve ESR.
In AME8818AEEV, IC will select external circuit to improve ESR and AC ripple rejection.
Rev.A.01
AME
Low Dropout
300mA CMOS Regulator
AME8818
n Ordering Information
AME8818 x x x x xxx x
Special Feature1
Output Voltage
Number of Pins
Package Type
Operating Ambient Temperature Range
Pin Configuration
Pin
Configuration
A: 1. GND
2. OUT
3. IN
(SOT-23)
A: 1.IN
2.GND
3.EN
4.BYP
5.OUT
(SOT-25)
B: 1.IN
2.GND
3.EN
4.NC
5.OUT
(SOT-25)
Operating Ambient
Temperature Range
E: -40OC to +85OC
Package
Type
E: SOT-2X
Number of
Pins
T: 3
V: 5
Output Voltage Special Feature 1
120:
150:
180:
250:
280:
285:
290:
300:
310:
320:
330:
360:
390:
V=1.2V
V=1.5V
V=1.8V
V=2.5V
V=2.8V
V=2.85V
V=2.9V
V=3.0V
V=3.1V
V=3.2V
V=3.3V
V=3.6V
V=3.9V
Z: Green
C: 1.EN
2.GND
3.IN
4.OUT
5.NC
(SOT-25)
Rev.A.01
3
AME
Low Dropout
300mA CMOS Regulator
AME8818
n Available Options
Part Number
Marking
Output
Voltage
Package
Operating Ambient
Temperature Range
AME8818AEET120Z
BVPMXX
1.2V
SOT-23
-40OC to +85OC
AME8818AEET150Z
BVQMXX
1.5V
SOT-23
-40OC to +85OC
AME8818AEET250Z
BVSMXX
2.5V
SOT-23
-40OC to +85OC
AME8818AEET300Z
BVWMXX
3.0V
SOT-23
-40OC to +85OC
AME8818AEET310Z
BVXMXX
3.1V
SOT-23
-40OC to +85OC
AME8818AEEV120Z
BWAMXX
1.2V
SOT-25
-40OC to +85OC
AME8818AEEV180Z
BWCMXX
1.8V
SOT-25
-40OC to +85OC
AME8818AEEV320Z
BYEMXX
3.2V
SOT-25
-40OC to +85OC
AME8818BEEV120Z
BWOMXX
1.2V
SOT-25
-40OC to +85OC
AME8818BEEV330Z
BWXMXX
3.3V
SOT-25
-40OC to +85OC
AME8818CEEV390Z
BYLMXX
3.9V
SOT-25
-40OC to +85OC
Note:
1. The first 3 places represent product code. It is assigned by AME such as BVP.
2. A bar on top of first letter represents Green Part such as BVP.
3. The last 3 places MXX represent Marking Code. It contains M as date code in "month", XX as LN code and
that is for AME internal use only. Please refer to date code rule section for detail information.
4. Please consult AME sales office or authorized Rep./Distributor for the availability of output voltage and package
type.
4
Rev.A.01
AME
Low Dropout
300mA CMOS Regulator
AME8818
n Absolute Maximum Ratings
Parameter
Symbol
Maximum
Unit
Input Voltage
VIN
-0.3 to 6
V
EN Voltage
VEN
-0.3 to 6
V
Output Current
IOUT
PD / (V IN -V OUT)
mA
Output Voltage
VOUT
GND-0.3 to VIN +0.3
V
B*
ESD Classification
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device.
* HBM B:2000V~3999V
n Recommended Operating Conditions
Parameter
Symbol
Rating
Ambient Temperature Range
TA
-40 to +85
Junction Temperature Range
TJ
-40 to +125
Storage Temperature Range
TSTG
-65 to +150
Rev.A.01
Unit
o
C
5
AME
Low Dropout
300mA CMOS Regulator
AME8818
n Thermal Information
Parameter
Package
Conductive
Epoxy
Thermal Resistance*
(Junction to Case)
Thermal Resistance
(Junction to Ambient)
Die Attach
Symbol
SOT-25
SOT-23
θJC
140
o
θJA
280
Conductive
Epoxy
400
PD
Non-Conductive
Epoxy
C/W
260
Non-Conductive
Epoxy
Internal Power Dissipation
Unit
81
Non-Conductive
Epoxy
Conductive
Epoxy
Maximum
mW
400
Maximum Junction Temperature
150
o
Solder Iron (10Sec)**
350
o
C
C
* Measure θJC on center of molding compound if IC has no tab.
** MIL-STD-202G 210F
6
Rev.A.01
AME
Low Dropout
300mA CMOS Regulator
AME8818
n Electrical Specifications
VIN = VOUT(NOM) + 1V or VIN = 2.5V, if VOUT(NOM) <= 2.0V, IOUT = 1mA, VEN = VIN and COUT = CIN = 1µF, Typical values at
TA = 25oC, unless otherwise noted.
Parameter
Test Conditions
Min
Typ Max Units
VIN
(Note1)
5.5
V
V OUT,ACC
-2
2
%
Output Voltage Range
VOUT
1.2
4.5
V
Output Current
IOUT
300
Input Voltage
Output Voltage Accuracy
Quiescent Current
Dropout Voltage
Output Voltage Line
Regulation
[(∆VOUT / ∆VI N)x100%] /
Symbol
IQ
VDROP
REGLINE
V OUT
Output Voltage Load
Regulation
[(∆VOUT / V OUT) x 100%]
REGLOAD
VI N = 5.5V, IOUT = 1mA
IOUT = 300mA
70
100
VOUT ≦ 2.0V
(Note2)
2.0V < VOUT ≦ 2.5V
370
500
2.6V ≦ VOUT ≦ 3.0V
280
400
VOUT ≧ 3.1V
230
330
µA
mV
VIN(min) ≦VI N≦VIN(max)
1.2V≦V OUT<2.5V
-0.4
0.1
0.4
VIN(min) ≦VI N≦VIN(max)
2.5≦ VOUT<3.3V
-0.2
0.03
0.2
VOUT+0.3V≦VI N≦VIN(max)
3.3V≦VOUT <4.5V
-0.1
0.01
0.1
VOUT≧3.3V
-0.003
0.002
2.5V≦VOUT<3.3V
-0.005
0.004 %/mA
1.2V≦VOUT<2.5V
-0.015
0.01
1mA≦IOUT ≦300mA
/∆IOUT
Output Current Limit
mA
ILIM
VOUT = 0.8 x VOUT(NOM)
Shutdown Current
ISHDN
VEN = 0V, VIN(min) ≦ VI N ≦ 5.5V
5
Power Supply Ripple
Rejection
PSRR
f = 1KHz, IOUT = 100mA, Cout=1µF(Note3)
60
Enable High (enabled)
VEN(HI)
VIN(min) ≦ VI N ≦ 5.5V
1.4
VI N
V
Enable Low (shutdown)
VEN(LO)
VIN(min) ≦ VI N ≦ 5.5V
0
0.4
V
IEN
VEN = VI N
0.1
1
µA
TSHDN
Shutdown, temperature increasing
150
TR S
Restore, temperature decreasing
130
Enable Pin Current (enabled)
Thermal Shutdown
Temperature
330
500
%/V
mA
10
µA
dB
O
C
Note 1: VIN(MIN)=VOUT+VDROP or VIN(min) =2.5V, whichever is greater.
Note 2: For VOUT below 2.0V, Dropout Voltage is the input to output differential.
Note 3: For VOUT below 1.5V, the minimun input. Voltage is 3.0V.
Rev.A.01
7
AME
AME8818
n Detailed Description
The AME8818 is low-dropout, low quiescent-current linear
regulator designed primarily for battery-powered applications.
It is available with present output voltage ranging from 1.2V
to 4.5V, and can supply loads up to 300mA.
n Shutdown Mode
The AME8818 has enable-control-pin. Drive EN low to shutdown OUT. Drive EN to shutdown the entire chip, reducing
supply current to 5µA. Connected EN to logic-high or IN for
normal operation.
n Circuit Limit
The AME8818 contains current limiters which monitor and
control the pass transistor's Gate voltage, limiting the guaranteed maximum output current to 330mA minimum. The
output can be shorted to ground for an indefinite time without
damaging the part.
n Thermal-Overload Protection
Thermal-overload protection limits total power dissipation
in the AME8818. When the junction temperature arrive TJ =
160oC approximately, the thermal sensor signals the shutdown logic, turning off the pass transistor and allowing the IC
to cool.
8
Low Dropout
300mA CMOS Regulator
n Capacitor Selection and
Regulator Stability
Use a 1µF capacitor on the AME8818 input and a
1µF capacitor on the OUT. Larger input capacitor values and lower ESR provide better supply noise rejection and line transient response. To reduce output
noise and improve load transient voltage dips, use
larger output capacitors up to 4.7µF. For stable operation over the full temperature range with load currents up to 300mA, input and output capacitors should
be a minimum of 1µF by X7R.
Note that some ceramic dielectrics large capacitance
and ESR variation with temperature. With dielectrics
such as Z5U and Y5V, it may be necessary to use
2.2µF or more for up to 300mA load current to ensure
stability at temperatures below -10oC. With X7R or
X5R dielectrics, 1µF is sufficient at all operating temperatures. These regulators are optimized for ceramic
capacitors. Tantalum capacitors are not recommended.
Bypass capacitor can be in between 0.1µF~0.001µF.
A larger capacitor improves AC ripple rejection, but
also make the output come up slowly.
n PSRR and Operation from
sources Other than Batteries
The AME8818 is designed to deliver low-dropout
voltage and low quiescent currents in battery-powered
system. Power-supply rejection ratio is 60dB (Typ.)
at 1KHz. When operating from sources other than
betteries, PSRR and transient response can be improved by increasing input, output and bypass
capacitors(see PSRR vs Frequency Curve).
Rev.A.01
AME
Low Dropout
300mA CMOS Regulator
AME8818
VOUT vs. Temperature
Quiesent Current vs Temprature
100
3.05
VOUT = 3.0V
Quiesent Current (V)
VOUT = 3.0V
3.04
V OUT (V)
3.03
3.02
IOUT =1mA
3.01
3.00
IOUT=300mA
2.99
80
60
I OUT=300mA
40
IOUT=1mA
20
2.98
2.97
-50
-25
0
+25
+50
+75
+100
0
-50
+125
-25
0
o
+25
+50
+75
+100
+125
Temperature ( oC)
Temperature ( C)
EN Pin Shutdown Threshold Voltage vs
Current Limit vs Input Voltage
Temperature
750
VOUT = 1.2V
700
1.25
Current Limit (mA)
EN Pin Shutdown Threshold
Voltage (V)
1.50
1.00
0.75
V OUT = 3.0V
650
600
550
500
450
0.50
400
0.25
-50
-25
0
+25
+50
+75
+100
350
4.0
+125
4.5
o
5.5
AME8818AEEV
Power Supply Rejection Ratio
Dropout Voltage vs Load Current
400
100
90
VOUT = 3.0V
IOUT = 300mA
350
O
TA=125 C
300
IOUT=10mA
VOUT = 1.2V
CBYP = 0.1µF
IOUT =1mA
80
70
PSRR (dB)
Dropout Voltage (mV)
5.0
Input Voltage (V)
Temperature ( C)
250
200
150
TA=25 C
0
TA=-40 C
0
50
100
150
200
Load Current (mA)
Rev.A.01
40
20
O
50
IOUT =100mA
50
30
O
100
60
10
250
300
0
1K
10 K
100K
1M
Frequency (H z)
9
AME
Low Dropout
300mA CMOS Regulator
AME8818
AME8818AEEV
Power Supply Rejection Ratio
Line Transient Response
90
VOUT = 3.3V
CBYP = 0.1µF
I OUT =10mA
80
60
50
IOUT =1mA
40
VIN = 4V~5.5V
VOUT = 3.3V
IOUT = 1mA
I OUT =100mA
V IN(2V/DIV)
PSRR (dB)
70
VOUT (50mV/DIV)
100
30
20
10
0
1K
10K
100 K
1M
TIME (100
Frequency (Hz)
Sec/DIV)
AME8818BEEV
Start Up delay time
EN (5V/DIV)
VOUT = 3.3V
IOUT = 1mA~250mA
VOUT (2V/DIV)
IOUT (100mA/DIV)
VOUT (50mV/DIV)
Load Transient Response
TIME (40µSec/DIV)
VIN = 5V
VOUT = 3.3V
IOUT = 1mA
TIME (10µSec/DIV)
AME8818BEEV
V IN = 5V
V OUT = 3.3V
IOUT = 1mA
V OUT (2V/DIV)
EN (5V/DIV)
EN Pin shutdown Response
TIME (20µSec/DIV)
10
Rev.A.01
AME
Low Dropout
300mA CMOS Regulator
AME8818
n Date Code Rule
Month Code
1: January 7: July
2: February 8: August
3: March
9: September
4: April
A: October
5: May
B: November
6: June
C: December
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Marking
A
M
A
M
A
M
A
M
A
M
A
M
A
M
A
M
A
M
A
M
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Year
xxx0
xxx1
xxx2
xxx3
xxx4
xxx5
xxx6
xxx7
xxx8
xxx9
n Tape and Reel Dimension
SOT-23
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Rev.A.01
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SOT-23
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
11
AME
Low Dropout
300mA CMOS Regulator
AME8818
n Tape and Reel Dimension
SOT-25
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
12
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SOT-25
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
Rev.A.01
AME
Low Dropout
300mA CMOS Regulator
AME8818
n Package Dimension
SOT-23
Top View
Side View
D
SYMBOLS
E
H
θ1
L
PIN 1
e
MILLIMETERS
MIN
MAX
MIN
MAX
A
0.90
1.40
0.0354
0.0551
A1
0.00
0.15
0.0000
0.0059
b
0.30
0.50
0.0118
0.0197
D
2.70
3.10
0.1063
0.1220
E
1.40
1.80
0.0551
0.0709
1.90 BSC
e
H
Front View
2.40
A
θ1
0.0748 BSC
3.00
0.35BSC
L
0
o
0.0945
0.1181
0.0138BSC
o
10
0
o
10
o
A1
b
INCHES
SOT-25
Top View
Side View
D
E
H
θ1
PIN 1
L
S1
SYMBOLS
MAX
MIN
MAX
A
0.90
1.30
0.0354
0.0512
A1
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
H
Front View
1.90 BSC
2.60
A
θ1
0.07480 BSC
3.00
0.37BSC
L
0
o
0.0146BSC
o
10
0.95BSC
0.10236 0.11811
0
o
10
o
0.0374BSC
A1
S1
Rev.A.01
INCHES
MIN
e
e
b
MILLIMETERS
13
www.ame.com.tw
E-Mail: sales@ame.com.tw
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. , February 2009
Document: 1261-DS8818-A.01
Corporate Headquarter
AME, Inc.
2F, 302 Rui-Guang Road, Nei-Hu District
Taipei 114, Taiwan, R.O.C.
Tel: 886 2 2627-8687
Fax: 886 2 2659-2989