AME AME8808WECSZ 750ma cmos ldo Datasheet

AME
750mA CMOS LDO
AME8808
n General Description
n Functional Block Diagram
The AME8808 family of positive, linear regulators feature low quiescent current (30µA typ.) with low dropout
voltage, making them ideal for battery applications. The
space-saving SOT-223 and TO-252-2 packages are attractive for "Pocket" and "Hand Held" applications.
IN
OUT
Overcurrent
Shutdown
These rugged devices have both Thermal Shutdown,
and Current Fold-back to prevent device failure under the
"Worst" operating conditions.
R1
Thermal
Shutdown
AMP
The AME8808 is stable with an output capacitance of
2.2µF or greater.
R2
Vref=1.215V
GND
n Features
l Very Low Dropout Voltage
l Guaranteed 750mA Output
l Accurate to within 1.5%
l 30µA Quiescent Current
n Typical Application
l Over-Temperature Shutdown
l Current Limiting
l Short Circuit Current Fold-back
IN
OUT
IN
l Space-Saving SOT-223 and TO-252-2 Packages
AME8808 OUT
GND
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
l All AME's Lead Free Products Meet RoHS
Standards
C1
C2
1µF
2.2µF
5V
n Applications
l Instrumentation
l Portable Electronics
l Wireless Devices
l Cordless Phones
l PC Peripherals
l Battery Powered Widgets
Rev.G.02
1
AME
750mA CMOS LDO
AME8808
„ Pin Configuration
SOT-223
Top View
AME8808
1
2
3
TO-252-2
Top View
AME8808
1. GND
2. OUT (TAB)
3. IN
AME8808
* Die Attach:
Non-Conductive Epoxy
1
2
3
AME8808
1. GND
2. OUT (TAB)
3. IN
* Die Attach:
Non-Conductive Epoxy
„ Pin Description
2
Pin Number
Pin Name
Pin Description
1
GND
Ground connection pin.
2
OUT
LDO voltage regulator output pin.
It should be decoupled with a 1µF or greater value low ESR
ceramic capacitor.
3
IN
Input voltage pin.
It should be decoupled with 1µF or greater capacitor.
Rev.G.02
AME
750mA CMOS LDO
AME8808
n Ordering Information
AME8808 x x x x
x
Special Feature
Number of Pins
Package Type
Operating Ambient Temperature Range
Product Grade or Option
Product Grade
or Option
A:
B:
C:
D:
E:
F:
G:
H:
I:
J:
K:
L:
M:
N:
O:
P:
Q:
R:
S:
U:
V:
W:
Y:
Z:
Rev.G.02
3.3V
3.0V
2.8V
2.5V
3.8V
3.6V
3.5V
2.7V
3.4V
2.85V
3.7V
1.5V
1.8V
2.9V
3.1V
4.1V
4.75V
2.65V
5.0V
3.2V
3.15V
2.3V
1.9V
1.7V
1:
2:
3:
4:
1.3V
2.0V
4.2V
4.0V
Operating Ambient
Temperature
Range
E: -40OC to +85OC
Package Type
C: TO-252
G: SOT-223
Number
of
Pins
S: 2
T: 3
Special Feature
Z: Lead Free
3
AME
750mA CMOS LDO
AME8808
n Ordering Information
Part Number
Marking*
Output Voltage
Package
Operating Ambient
Temperature Range
AME8808AEGT
AETyww
3.3V
SOT-223
- 40oC to +85oC
AME8808AEGTZ
AETyww
3.3V
SOT-223
- 40oC to +85oC
AME8808BEGTZ
AEUyww
3.0V
SOT-223
- 40oC to +85oC
AME8808CEGTZ
AEVyww
2.8V
SOT-223
- 40oC to +85oC
AME8808DEGTZ
AEWyww
2.5V
SOT-223
- 40oC to +85oC
AME8808EEGTZ
AEXyww
3.8V
SOT-223
- 40oC to +85oC
AME8808FEGTZ
AEYyww
3.6V
SOT-223
- 40oC to +85oC
AME8808GEGTZ
AEZyww
3.5V
SOT-223
- 40oC to +85oC
AME8808HEGTZ
AFAyww
2.7V
SOT-223
- 40oC to +85oC
AME8808IEGTZ
AFByww
3.4V
SOT-223
- 40oC to +85oC
AME8808JEGTZ
AGUyww
2.85V
SOT-223
- 40oC to +85oC
AME8808KEGTZ
AHWyww
3.7V
SOT-223
- 40oC to +85oC
AME8808LEGTZ
AJGyww
1.5V
SOT-223
- 40oC to +85oC
AME8808MEGTZ
AJHyww
1.8V
SOT-223
- 40oC to +85oC
AME8808NEGTZ
AKUyww
2.9V
SOT-223
- 40oC to +85oC
AME8808OEGTZ
AKVyww
3.1V
SOT-223
- 40oC to +85oC
AME8808AECSZ
AME8808
AECS
yyww
3.3V
TO-252-2
- 40oC to +85oC
AME8808BECSZ
AME8808
BECS
yyww
3.0V
TO-252-2
- 40oC to +85oC
AME8808CECSZ
AME8808
CECS
yyww
2.8V
TO-252-2
- 40oC to +85oC
Note: yww & yyww represents the date code
* A line on top of the first letter represents lead free plating such as AET
Please consult AME sales office or authorized Rep./Distributor for output voltage and package type availability.
4
Rev.G.02
AME
750mA CMOS LDO
AME8808
n Ordering Information (contd.)
Part Number
Marking*
Output Voltage
Package
Operating Ambient
Temperature Range
AME8808DECSZ
AME8808
DECS
yyww
2.5V
TO-252-2
- 40oC to +85oC
AME8808EECSZ
AME8808
EECS
yyww
3.8V
TO-252-2
- 40oC to +85oC
AME8808FECSZ
AME8808
FECS
yyww
3.6V
TO-252-2
- 40oC to +85oC
AME8808GECSZ
AME8808
GECS
yyww
3.5V
TO-252-2
- 40oC to +85oC
AME8808HECSZ
AME8808
HECS
yyww
2.7V
TO-252-2
- 40oC to +85oC
AME8808IECSZ
AME8808
IECS
yyww
3.4V
TO-252-2
- 40oC to +85oC
AME8808JECSZ
AME8808
JECS
yyww
2.85V
TO-252-2
- 40oC to +85oC
AME8808KECSZ
AME8808
KECS
yyww
3.7V
TO-252-2
- 40oC to +85oC
AME8808LECSZ
AME8808
LECS
yyww
1.5V
TO-252-2
- 40oC to +85oC
AME8808MECSZ
AME8808
MECS
yyww
1.8V
TO-252-2
- 40oC to +85oC
AME8808NECSZ
AME8808
NECS
yyww
2.9V
TO-252-2
- 40oC to +85oC
AME8808OECSZ
AME8808
OECS
yyww
3.1V
TO-252-2
- 40oC to +85oC
Rev.G.02
5
AME
750mA CMOS LDO
AME8808
n Absolute Maximum Ratings
Parameter
Maximum
Unit
-0.3 to +8
V
Output Voltage
-0.3 to VIN + 0.3
V
Output Current
PD / (V IN - VOUT)
mA
Input Voltage
B*
ESD Classification
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
* HBM B: 2000~3999V
n Recommended Operating Conditions
Parameter
Symbol
Rating
Unit
Ambient Temperature Range
TA
- 40 to +85
o
C
Junction Temperature Range
TJ
- 40 to +125
o
C
Storage Temperature Range
TSTG
- 65 to +150
o
C
n Thermal Information
Parameter
Thermal Resistance*
( Junction to Case)
Package
Die Attach
Symbol
SOT-223
Maximum
Unit
31
θJC
TO-252-2
30
o
Thermal Resistance
( Junction to Ambient)
SOT-223
TO-252-2
Non Conductive
Epoxy
θJA
140
SOT-223
Internal Power Dissipation
800
mW
PD
TO-252-2
C/W
135
1000
Maximum Junction Temperature
150
o
Solder Iron (10 Sec)**
350
o
C
C
* Measure θJC on backside center of tab.
** MIL-STD-202G 210F
6
Rev.G.02
AME
750mA CMOS LDO
AME8808
n Electrical Specifications
TA = 25OC unless otherwise noted
Parameter
Test Condition
Symbol
Input Voltage
VIN
Output Voltage Accuracy
VO
IO=1mA
Min
Typ
Max
Units
Note 1
7
V
-1.5
1.5
%
1.3V<=VO(NOM)<=1.4V
Dropout Voltage
VDROPOUT
IO=750mA
1.4V<VO(NOM)<=2.0V
VO=VO(NOM) -2.0%
2.0V<VO(NOM)<=2.8V
1900
See 1400
chart 800
2.8V<VO(NOM)
Output Current
mV
600
IO
VO>1.2V
750
Current Limit
ILIM
VO>1.2V
750
Short Circuit Current
ISC
VO<0.8V
300
600
mA
Quiescent Current
IQ
IO=0mA
30
50
µA
Ground Pin Current
IGND
IO=1mA to 750mA
35
Line Regulation
Load Regulation
Over Temperature Shutdown
Over Temperature Hysterisis
V O Temperature Coefficient
Power Supply Rejection
Output Voltage Noise
REGLINE
REGLOAD
mA
850
mA
µA
1.3V <= VO <= 1.4V
-0.2
0.2
IO=1mA
1.4V < VO <= 2.0V
-0.15
0.15
V IN =VO+1 to VO+2
2.0V < VO < 4.0V
-0.1
0.02
0.1
4.0V <= VO
-0.4
0.2
0.4
0.2
1
IO=1mA to 750mA
%
%
150
o
C
OTH
30
o
C
TC
30
OTS
PSRR
eN
IO=100mA
CO=2.2mF
f=10Hz to 100kHz
IO=10mA,CBYP=0mF
f=100Hz
60
f=1kHz
50
f=10kHz
20
Co=2.2mF
30
ppm/oC
dB
mVrms
Note1:VIN(min)=VOUT+VDROPOUT
Rev.G.02
7
AME
AME8808
750mA CMOS LDO
n Detailed Description
The AME8808 family of CMOS regulators contain a
PMOS pass transistor, voltage reference, error amplifier,
over-current protection, and thermal shutdown.
The P-channel pass transistor receives data from the
error amplifier, over-current shutdown, and thermal protection circuits. During normal operation, the error amplifier compares the output voltage to a precision reference.
Over-current and Thermal shutdown circuits become active when the junction temperature exceeds 150oC, or
the current exceeds 750mA. During thermal shutdown,
the output voltage remains low. Normal operation is restored when the junction temperature drops below 120oC.
The AME8808 switches from voltage mode to current
mode when the load exceeds the rated output current.
This prevents over-stress. The AME8808 also incorporates current foldback to reduce power dissipation when
the output is short circuited. This feature becomes active when the output drops below 0.8 volts, and reduces
the current flow by 65%. Full current is restored when
the voltage exceeds 0.8 volts.
n External Capacitors
The AME8808 is stable with an output capacitor to
ground of 2.2µF or greater. Ceramic capacitors have the
lowest ESR, and will offer the best AC performance. Conversely, Aluminum Electrolytic capacitors exhibit the highest ESR, resulting in the poorest AC response. Unfortunately, large value ceramic capacitors are comparatively
expensive. One option is to parallel a 0.1µF ceramic
capacitor with a 10µF Aluminum Electrolytic. The benefit
is low ESR, high capacitance, and low overall cost.
A second capacitor is recommended between the input and ground to stabilize Vin. The input capacitor should
be at least 0.1µF 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.
8
Rev.G.02
AME
750mA CMOS LDO
AME8808
Ground Current vs. Input Voltage
Load Step (1mA-600mA)
Vo(10mV/DIV)
45
85OC
35
30
Output
CL=2.2µF
CIN=2.2µF
25
O
25 C
20
IL(200mA/DIV)
Ground Current (µ A)
40
15
10
5
ILoad
0
0
0
1
2
3
4
5
6
7
8
TIME ( 20mS/DIV)
Input Voltage (V)
Drop Out Voltage vs. Output Voltage
Power Supply Rejection Ratio
0
0.3
ILOAD=600mA
0.2
0.15
0.1
100mA
CL =2.2µF Tantalum
C BYP =0
-20
PSRR (dB)
Drop Out Voltage (V)
-10
0.25
-30
-40
-50
10mA
100mA
-60
0.05
-70
0
2
2.5
3
3.5
4
4.5
5
5.5
10
Output Voltage (V)
SOT-223
VIN(1V/DIV)
75OC
rise
DPAK-2
With HS capable of twice θjc
Input-Output Voltage Differential (V)
1K
100K
10M
Line Transient Response
VOUT(10mV/DIV)
Output Current (mA)
1mA
Frequency (Hz)
Safe Operating Area
Rev.G.02
100 µ A
100 µ A
-80
C LOAD =2.2µF
I LOAD =1mA
V OUTDC =3.3V
V INDC =4.5V
TIME (200mS/DIV)
9
AME
750mA CMOS LDO
AME8808
0
R LOAD=6.6 Ω
I
CL=2.2µF
No Filter
OUT
(200mA/DIV)
Overtemperature Shutdown
VOUT (1V/DIV)
Vo (1mV DIV)
Noise Measurement
0
TIME (20ms/DIV)
TIME (0.5Sec/DIV)
Short Circuit Response
TIME (2mS/DIV)
10
IOUT (200mV/DIV)
CLOAD=2.2µF
CIN=1.0µF
RLOAD=3.3Ω
VOUTNOM=3.3V
CLOAD=2.2µF
CIN=1µF
RLOAD<100mΩ
VOUT (1V/DIV)
IOUT (200mA/DIV)
VOUT (1V/DIV)
Current Limit Response
TIME (2mS/DIV)
Rev.G.02
AME
750mA CMOS LDO
AME8808
n Tape & Reel Dimension
SOT-223
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-223
12.0±0.1 mm
4.0±0.1 mm
2500pcs
330±1 mm
TO-252-2
P
PIN 1
W
AME
AME
Carrier Tape, Number of Components Per Reel and Reel Size
Rev.G.02
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
TO-252-2
16.0±0.1 mm
4.0±0.1 mm
2500pcs
330±1 mm
11
AME
750mA CMOS LDO
AME8808
n Package Dimension
TO-252-2(DPAK)-EIAJ
SYMBOLS
E
B
K
A
L
F
G
C
MAX
MIN
MAX
A
0.43
0.58
0.0169
0.0230
B
1.60
1.95
0.0630
0.0768
C
0.51
1.78
0.0200
0.0701
D
0.43
0.60
0.0169
0.0236
E
6.35
6.80
0.2500
0.2677
F
5.36
7.20
0.2110
0.2835
G
2.20
3.00
0.0866
0.1181
H
-
* 2.30
-
*0.0906
J
-
0.97
-
0.0380
K
5.20
5.50
0.2047
0.2165
L
J
D
H
INCHES
MIN
Side View
Top View
MILLIMETERS
1.40REF
0.055REF
*: Typical Value
Notes:
1. Controlling dimension: Millimeters.
2. Maximum lead thickness includes lead finish thickness Minimum lead thickness is the minimum thickness of base material.
SOT-223
Top View
Side View
SYMBOLS
D
B1
θ
C
13o(4X)
H
E
e
Front View
13o(4X)
F
A1
12
INCHES
MIN
MAX
MIN
MAX
A1
0.01
0.10
0.0004
0.0039
B
0.60
0.84
0.0236
0.0330
B1
2.90
3.15
0.1140
0.1240
C
0.24
0.38
0.0094
0.0150
D
6.30
6.71
0.2480
0.2640
E
3.30
3.71
0.1299
0.1460
F
1.40
1.80
0.0551
0.0709
2.30 BSC
e
H
B
MILLIMETERS
θ
6.70
0
o
0.0906 BSC
7.30
10
o
0.2638
0
o
0.2874
10 o
Rev.G.02
www.ame.com.tw
E-Mail: [email protected]
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 2008
Document: 2006/2095-DS8808-G.02
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
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