AME8839/300mA CMOS LDO

AME
AME8839
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
n General Description
n Typical Application
The AME8839 CMOS LDO regulators provide low drop-
CIN
out voltage (230mV @ 300mA), High PSRR 70dB and
CIN
1µF
ultra low noise which make them ideal for designing RF
application. The input voltage range is from 2.3V to 5.5V
OUT
AME8839
EN
and output is guaranteed to deliver a maxium of 300mA
EN
current. The AME8839 is stable with output capacitance
ON
of 1µF or larger.
VOUT
IN
OFF
BYP
GND
COUT
1µF
CBYP
10nF
These rugged devices have both Thermal Shutdown and
Current limit to prevent device failure under the "Worst"
operating conditions. The AME8839 is available in SOT25 and SC-70-5 package.
n Features
l Input Voltage Range: 2.3V~5.5V
l Output Voltage Range: 1.2V~4.5V
l Low Dropout Voltage: 230mV @ 300mA
l Ultra-Low-Noise: 50µVRMS at 100Hz to
100KHz
l High PSRR: 70dB before 10KHz
l Low Temperature Coefficient
l Current Limiting Protection
l Thermal Shutdown Protection
l Stable with 1µF Output Capacitor (MLCC)
for any load
l Package: SOT-25, SC-70-5
l All AME’ s Green Product Meet RoHS
Standards
n Applications
l
Cellular Handsets
l
Portable and Battery-Powered Equipment
l
Wireless LANS
l GPS
Rev. A.08
1
AME
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
AME8839
n Function Block Diagram
IN
EN
BYP
Thermal Shutdown
& Current Limit
Shutdown
VREF
+
MOS Driver
OUT
GND
2
Rev. A.08
AME
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
AME8839
n Pin Configuration
SOT-25
Top View
5
SC-70-5
Top View
4
AME8839
1
2
AME8839-AEVxxx
5
4
AME8839-AIVxxx
1. IN
1. IN
2. GND
2. GND
3. EN
AME8839
3. EN
4. BYP
4. BYP
5. OUT
5. OUT
3
1
2
3
Die Attach:
Die Attach:
Conductive Epoxy
Conductive Epoxy
n Pin Description
Pin Number
Pin Name
1
IN
2
GND
3
EN
4
BYP
Bypass capacitor connection.
5
OUT
LDO voltage regulator output pin; should be decoupled with a 1µF or
greater value low ESR ceramic capacitor (MLCC).
Rev. A.08
Pin Description
Input voltage pin; should be decoupled with 1µF or greater capacitor.
Ground connection pin.
Enable pin.
When pulled low, the PMOS pass transistor turns off.
3
AME
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
AME8839
n Ordering Information
AME8839 - x x x xxx
Output Voltage
Number of Pins
Package Type
Pin Configuration
Pin Configuration
A
(SOT-25)
A
(SC-70-5)
4
1. IN
2. GND
3. EN
4. BYP
5. OUT
1. IN
2. GND
3. EN
4. BYP
5. OUT
Package
Type
E: SOT-2X
I: SC-70
Number of
Pins
V: 5
Output Voltage
120:
150:
180:
250:
270:
300:
310:
330:
450:
1.2V
1.5V
1.8V
2.5V
2.7V
3.0V
3.1V
3.3V
4.5V
Rev. A.08
AME
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
AME8839
n Available Options
Part Number
Marking*
Output Voltage
Package
Operating Ambient
Temperature Range
AME8839-AEV120
BZEMXX
1.2V
SOT-25
-40 C to +85 C
AME8839-AEV250
CATMXX
2.5V
SOT-25
-40 C to +85 C
AME8839-AEV270
CGCMXX
2.7V
SOT-25
-40 C to +85 C
AME8839-AEV310
CAQMXX
3.1V
SOT-25
-40 C to +85 C
AME8839-AEV330
BZFMXX
3.3V
SOT-25
-40 C to +85 C
AME8839-AEV450
CAFMXX
4.5V
SOT-25
-40 C to +85 C
AME8839-AIV180
CASw
1.8V
SC-70-5
-40 C to +85 C
AME8839-AIV300
CBJw
3.0V
SC-70-5
-40 C to +85 C
AME8839-AIV310
CDBw
3.1V
SC-70-5
-40 C to +85 C
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
Note:
1. The first 3 places represent product code. It is assigned by AME such as BZE.
2. A bar on top of first letter represents Green Part such as BZE.
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. w represent the date code and please refer to date code rule section for detail information.
5. Please consult AME sales office or authorized Rep./Distributor for the availability of output voltage and package
type.
n Absolute Maximum Ratings
Parameter
Symbol
Maximum
Unit
Input Voltage
VIN
6
V
Output Current
IOUT
PD /(V IN -V OUT)
mA
Output Voltage
VOUT
GND-0.3 to VIN +0.3
V
ESD Classification
B*
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device.
* HBM B: 2000V~3999V
Rev. A.08
5
AME
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
AME8839
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
Unit
o
C
n Thermal Information
Parameter
Package
Die Attach
Thermal Resistance*
(Junction to Case)
Thermal Resistance
(Junction to Ambient)
Symbol
Maximum
θ JC
81
o
θJA
260
Internal Power Dissipation
PD
400
Thermal Resistance*
(Junction to Case)
θ JC
N/A
Thermal Resistance
(Junction to Ambient)
Unit
SOT-25
Conductive Epoxy
mW
o
SC-70-5
Conductive Epoxy
Internal Power Dissipation
Solder Iron (10Sec)**
θJA
331
PD
300
350
C/W
C/W
mW
o
C
* Measure θJC on backside center of molding compound if IC has no tab.
** MIL-STD-202G 210F
6
Rev. A.08
AME
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
AME8839
n Electrical Specifications
VIN = VOUT(NOM) + 1V or VIN = 2.3V, if VOUT(NOM) < 1.5V, IOUT = 1mA, VEN = VIN and COUT = CIN = 1µF(X7R), CBYP=10nF.
Typical values are at TA=25oC, unless otherwise noted.
Parameter
Input Voltage
Symbol
Test Condition
Min
Typ
Max
Units
VIN
2.3
5.5
V
VOUT,ACC
-2
2
%
Output Voltage Range
VOUT
1.2
4.5
V
Output Current
IOUT
300
Output Voltage Accuracy
V OUT<1.75V
Dropout Voltage
V DROP
mA
Note 1
VOUT=98%*VOUT(NOM)
1.75V≦ VOUT <2.0V
550
IOUT=300mA
2.0V ≦VOUT<3.0V
450
mV
V OUT≧3.0V
230
350
0.1
0.4
Output Voltage Line Regulation
[(∆VOUT / ∆VIN ) x 100%] / V OUT
REG LINE
VIN(MIN)≦ VIN≦ 5.5V (Note 1)
-0.4
Output Voltage Load Regulation
[(∆VOUT / V OUT) x 100%] / ∆IOUT
REGLOAD
1mA ≦IOUT≦300mA
-0.003
Quiescent Current
IQ
VIN=5.5V
Output Current Limit
ILIM
V OUT=0.9xVOUT(NOM)
ISHDN
VEN =0V, VIN(MIN)≦V IN≦5.5V
0.1
f =1KHz, IOUT=10mA, COUT=1µF
75
f =10KHz, IOUT=10mA, COUT=1µF
70
f =100KHz, IOUT=10mA, C OUT=1µF
50
eN
f = 100Hz to 100KHz, IOUT =10mA
50
Enable High (enabled)
V EN(HI)
V IN(MIN)≦VIN ≦5.5V
1.4
V IN
V
Enable Low (shutdown)
V EN(LO)
V IN(MIN)≦VIN ≦5.5V
0
0.4
V
IEN
V EN =VIN
0.1
1
µA
TSHDN
Shutdown, temperature increasing
150
TR S
Restore, temperature decreasing
130
Shutdown Current
Power Supply Ripple Rejection
Output Noise
Enable Pin Current (enabled)
Thermal Shutdown Temperature
PSRR
0.002 %/mA
120
450
%/V
160
500
µA
mA
1
µA
dB
µV RMS
o
C
Note 1. VIN(MIN)=VOUT+VDROP or VIN(MIN)=2.3V, whichever is greater.
Rev. A.08
7
AME
AME8839
n Detailed Description
The AME8839 is low-dropout, high PSRR, Low noise
linear regulator designed primarily for low noise applications.
It is available with present output voltage ranging from
1.2V to 4.5V, and can supply loads up to 300mA.
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
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
regulator are optimized for ceramic capacitors. Tantalum
Shutdown Mode
The AME8839 has enable-control-pin. Drive EN low to
shutdown OUT. Drive EN to shutdown the entire chip,
reducing supply current to 1µA. Connected EN to logichigh or IN for normal operation.
capacitors are not recommended.
Bypass capacitor can be in between 0.1µF~0.01µF. A
larger capacitor improves AC ripple rejection and reduce
noise, but also make the output come up slowly.
PSRR and Operation from sources Other than Bat-
Circuit Limit
The AME8839 contains current limiters which monitor
and control the pass transistor's Gate voltage, limiting the
guaranteed maximum output current to 450mA minimum.
The output can be shorted to ground for an indefinite time
without damaging the part.
teries
The AME8839 is designed to deliver low-dropout voltage, low noise and high PSRR in low noise applications.
Power-supply rejection ratio is 70dB (Typ.) at 10KHz.
When operating from sources other than betteries, PSRR
and transient response can be improved by increasing
Thermal-Overload Protection
input, output and bypass capacitors (see PRSS vs Frequency Curve).
Thermal-overload protection limits total power dissipation in the AME8839. When the junction temperaturee
arrive TJ = 150oC approximately, the thermal sensor signals the shutdown logic, turning off the pass transistor
and allowing the IC to cool.
Capacitor Selection and Regulator Stability
Use a 1µF capacitor on the AME8839 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.
8
Rev. A.08
AME
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
AME8839
n Characterization Curve
Quiesent Current vs Temprature
Dropout Voltage vs Load Current
200
400
VOUT = 4.5V
VOUT=4.5V
150
Dropout Voltage (mV)
Quiescent Current (µA)
350
100
V OUT =1.2V
50
TA=125O C
300
250
200
O
TA=25 C
150
100
50
0
-40
-15
+10
+35
+ 60
+85
+110
0
+ 135
0
o
250
300
100
IOUT=10mA
90
70
70
60
PSRR (dB)
IOUT=100mA
50
40
20
20
10
10
10
100
IOUT=10mA
40
30
1
I OUT=100mA
50
30
0
V OUT = 4.5V
60
0
0.1
1
10
Frequency(KHz)
Line Transient Response
Line Transient Response
100
VIN(2V/DIV)
VIN(2V/DIV)
Frequency(KHz)
VOUT = 1.2V
I OUT = 10mA
TIME (100 µSec/DIV)
V OUT (50mV/DIV)
PSRR (dB)
200
PSRR vs Frequency
V OUT = 1.2V
VOUT (50mV/DIV)
150
PSRR vs Frequency
80
Rev. A.08
100
Load Current (mA)
80
0.1
50
Temperature ( C)
100
90
O
TA=-40 C
V OUT = 1.2V
IOUT = 100mA
TIME (100µSec/DIV)
9
AME
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
AME8839
n Characterization Curve
V OU T (50mV/DIV)
V OUT (50mV/DIV)
VOUT = 4.5V
IOUT = 10mA
Load Transient Response
Load Transient Response
I OUT (100mA/DIV)
VOUT = 1.2V
IOUT = 1mA~ 50mA
VOUT ( 10mV/DIV)
TIME (100µSec/DIV)
TIME (200µSec/DIV)
VOUT = 1.2V
IOUT = 1mA~300mA
TIME (200µSec/DIV)
VOUT (10mV/DIV)
Load Transient Response
VOUT = 4.5V
IOUT = 1mA~300mA
IOUT (100mA/DIV)
V OUT = 4.5V
I OUT = 1mA~ 50mA
IOUT (20mA/DIV)
V OUT ( 10mV/DIV)
Load Transient Response
TIME (200µSec/DIV)
10
V OUT = 4.5V
I OUT = 100mA
TIME ( 100µSec/DIV)
IOUT (20mA/DIV)
VOUT (10mV/DIV)
Line Transient Response
V IN(1V/DIV)
V IN(1V/DIV)
Line Transient Response
TIME (200µSec/DIV)
Rev. A.08
AME
AME8839
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
n Characterization Curve
VOUT = 4.5V
VOUT (2V/DIV)
TIME (20µSec/DIV)
Rev. A.08
Enable Response
VEN (2V/DIV)
V OUT = 1.2V
VOUT (500mV/DIV)
V EN (1V/DIV)
Enable Response
TIME (40µSec/DIV)
11
AME
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
AME8839
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
Marking
A
M
A
M
A
M
A
M
A
M
A
M
A
M
A
M
A
M
A
M
A
A
A
A
A
A
A
A
A
A
X
X
X
X
X
X
X
X
X
X
Year
xxx0
xxx1
xxx2
xxx3
xxx4
xxx5
xxx6
xxx7
xxx8
xxx9
X
X
X
X
X
X
X
X
X
X
For SC-70 Package Only
Marking
12
Date Code
Year
w: Work Week Code
A
A
A
W
xxx0
A:
01&02
K:
21&22
U:
41&42
A
A
A
W
xxx1
B:
03&04
L:
23&24
V:
43&44
A
A
A
W
xxx2
C:
05&06
M:
25&26 W:
45&46
A
A
A
W
xxx3
D:
07&08
N:
27&28
X:
47&48
A
A
A
W
xxx4
E:
09&10
O:
29&30
Y:
49&50
A
A
A
W
xxx5
F:
11&12
P:
31&32
Z:
51&52
A
A
A
W
xxx6
G:
13&14
Q:
33&34
A
A
A
W
xxx7
H:
15&16
R:
35&36
A
A
A
W
xxx8
I:
17&18
S:
37&38
A
A
A
W
xxx9
J:
19&20
T:
39&40
Rev. A.08
AME
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
AME8839
n Tape and Reel Dimension
SOT-25
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
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
SC-70-5
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Rev. A.08
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SC-70-5
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
13
AME
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
AME8839
n Package Dimension
SOT-25
Top View
Side View
D
E
H
θ1
L
PIN 1
S1
e
A1
A
Front View
b
SYMBOLS
MILLIMETERS
MIN
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
1.90 BSC
e
H
2.60
θ1
S1
0.0748 BSC
3.00
0.1024
0.37 BSC
L
14
INCHES
0
o
0.0146 BSC
10
0.95 BSC
0.1181
o
0
o
10
o
0.0374 BSC
Rev. A.08
AME
High PSRR, Ultra Low Noise,
300mA CMOS Linear Regulator
AME8839
n Package Dimension
SC-70-5
Top View
Side View
C
0 .1 5(.006)
D
D
e1
A
Detail A
A
θ1
E/2
E1/2
E
E1
0 .1 5(.006)
.15 (0059) H
GAGE PLANE
C
θ
PIN 1
L
e
B
See Detail A
.1 0(0 .0 4)
SECTION A-A
b
M C A B
(b)
b1
Front View
c1
A2
c
A
SEATING PLANE
BASE METAL
0.1 5(.006 )
C
A1
SYMBOLS
C
MILLIMETERS
MIN
MAX
MIN
MAX
A
0.80
1.10
0.0315
0.0433
A1
0.00
0.10
0.0000
0.0039
A2
0.80
1.00
0.0315
0.0394
b
0.15
0.35
0.0059
0.0138
b1
0.15
0.25
0.0059
0.0098
c
0.08
0.25
0.0031
0.0098
c1
0.08
0.20
0.0031
0.0079
D
1.85
2.20
0.0728
0.0866
E
1.80
2.45
0.0709
0.0965
E1
1.10
1.40
0.0433
0.0551
0.65 BSC
e
Rev. A.08
INCHES
0.0255 BSC
e1
1.20
1.40
0.0472
0.0551
L
0.26
0.46
0.0102
0.0181
θ1
0
o
θ
4
o
o
8
10
o
0
o
8
o
4
o
10
o
15
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. , October 2011
Document: 1281-DS8839-A.08
Corporate Headquarter
AME, Inc.
2F, 302 Rui-Guang Road, Nei-Hu District
Taipei 114, Taiwan.
Tel: 886 2 2627-8687
Fax: 886 2 2659-2989