AME AME8820AENU330Z

AME, Inc.
AME8820
High PSRR, CSP, 150mA CMOS LDO
n General Description
n Functional Block Diagram
The AME8820 family of positive, linear regulators feature low quiescent current (30µA typ.) low dropout voltage and excellent PSRR, thus making them ideal for Telecommunications and other battery applications. The ultra-small CSP package is attractive for "Pocket" and "Hand
Held" applications.
These rugged devices have both Thermal Shutdown,
and Current limit to prevent device failure under the Worst
operating conditions.
OUT
IN
Overcurrent
Shutdown
Thermal
Shutdown
EN
R1
-
The AME8820 is stable with an output capacitance of
1µF or larger.
AMP
+
n Features
R2
l Very Low Dropout Voltage
l Guaranteed 150mA Output
Vref
GND
l Accurate to within 1.0%
l 30µA Quiescent Current
l Over-Temperature Shutdown
l Current Limiting
l Excellent PSRR (Typ. 65dB)
l Power-Saving Shutdown Mode
n Typical Application
l Ultra-Small CSP Packages
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
IN
IN
EN
IN
l Input Voltage Range (2.5V - 5.5V)
l All AME's Lead Free Products Meet RoHS
Standards.
OUT
AME8820
GND
OUT
C1
C2
1µF
1µF
n Applications
l Cellular Phones
l Instrumentation
l Portable Electronics
l Wireless Devices
l Cordless Phones
l PC Peripherals
l Battery Powered Widgets
l Cameras
l Telecommunications
Rev.B.01
1
AME, Inc.
High PSRR, CSP, 150mA CMOS LDO
AME8820
n Pin Configuration
CSP-4 (4Bumps)
Bottom View
CSP-4 (4Bumps)
Top View
AME8820AENU
4
1. EN
3
3
4
2. IN
3. OUT
AME8820
(Place holder)
1
4. GND
2
AME8820
(Place holder)
2
1
n Pin Description
2
Pin Number
Pin Name
Pin Description
1
EN
Enable pin.
When pulled low, the PMOS pass transistor turns off, current consuming
less than 1µA.
2
IN
Input voltage pin.
It should be decoupled with 1µF or greater capacitor.
3
OUT
LDO voltage regulator output pin.
It should be decoupled with a 1µF or greater value low ESR ceramic
capacitor.
4
GND
Ground connection pin.
Rev.B.01
AME, Inc.
High PSRR, CSP, 150mA CMOS LDO
AME8820
n Ordering Information
AME8820 x x x x xxx x
Special Feature
Output Voltage
Number of Bumps
Package Type
Operating Ambient Temperature Range
Pin Configuration
Pin
Configuration
A: 1. EN
2. IN
3. OUT
4. GND
(CSP)
(4Bumps)
Rev.B.01
Operating Ambient
Temperature
Range
E: -40OC to 85OC
Package
Type
N: CSP
Number
of
Bumps
U: 4
Output
Voltage
120:
130:
150:
180:
200:
250:
280:
285:
300:
330:
V=1.2V
V=1.3V
V=1.5V
V=1.8V
V=2.0V
V=2.5V
V=2.8V
V=2.85V
V=3.0V
V=3.3V
Special Feature
Z: Lead free
3
AME, Inc.
High PSRR, CSP, 150mA CMOS LDO
AME8820
n Ordering Information
Part Number
Marking*
Output Voltage
AME8820AENU120Z
Aw
1.2V
AME8820AENU130Z
Iw
1.3V
AME8820AENU150Z
Bw
1.5V
AME8820AENU180Z
Cw
1.8V
AME8820AENU200Z
Ew
2.0V
AME8820AENU250Z
Fw
2.5V
AME8820AENU280Z
Gw
2.8V
AME8820AENU285Z
Jw
2.85V
AME8820AENU300Z
Hw
3.0V
AME8820AENU330Z
Dw
3.3V
Package
CSP-4
(4 Bumps)
CSP-4
(4 Bumps)
CSP-4
(4 Bumps)
CSP-4
(4 Bumps)
CSP-4
(4 Bumps)
CSP-4
(4 Bumps)
CSP-4
(4 Bumps)
CSP-4
(4 Bumps)
CSP-4
(4 Bumps)
CSP-4
(4 Bumps)
Operating Ambient
Temperature Range
- 40oC to 85oC
- 40oC to 85oC
- 40oC to 85oC
- 40oC to 85oC
- 40oC to 85oC
- 40oC to 85oC
- 40oC to 85oC
- 40oC to 85oC
- 40oC to 85oC
- 40oC to 85oC
Note: w represent the date code and pls refer to Date Code Rule page on Package Dimension.
* A circle on top represents Pin1 & CSP 4Bumps package.
Please consult AME sales office or authorized Rep./Distributor for the availability of package type.
4
Rev.B.01
AME, Inc.
High PSRR, CSP, 150mA CMOS LDO
AME8820
n Absolute Maximum Ratings
Parameter
Maximum
Unit
6
V
Output Current
PD / (V IN - VOUT)
mA
Output Voltage
GND - 0.3 to VIN + 0.3
V
Input Voltage
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
Unit
Ambient Temperature Range
TA
- 40 to 85
o
Junction Temperature Range
TJ
- 40 to 125
o
Storage Temperature Range
TSTG
- 65 to 150
o
C
C
C
n Thermal Information
Parameter
Thermal Resistance
(Junction to Ambient)
Internal Power Dissipation
Solder Iron (10 Sec)*
Package
CSP-4
(4 Bumps)
Die Attach Symbol Maximum
Conductive
Epoxy
θJA
360
PD
400
350
Unit
o
C/W
mW
o
C
* MIL-STD-202G 210F
Rev.B.01
5
AME, Inc.
High PSRR, CSP, 150mA CMOS LDO
AME8820
n Electrical Specifications
VIN=VOUT(Typ)+1V, IOUT=1mA, VEN=VIN, TJ = -40OC to 125OC,CIN=COUT=1µF, unless otherwise noted
Parameter
Input Voltage
Symbol
Test Condition
Min
Max
Units
2.5
5.5
V
IOUT = 1mA, TA = 25 C
-1.5
1.5
IOUT = 1mA, TJ = -40oC to 125oC
-3
3
VIN
o
Output Voltage Accuracy
VOUT
IOUT = 150mA
Dropout Voltage
VDROPOUT
VOUT = VOUT(Ty p) - 2%*
VOUT(Ty p)
TA = 25oC
Typ
VOUT(Ty p) = 3.3V
125
200
VOUT(Ty p) = 3.0V
140
210
VOUT(Ty p) = 2.85V
150
230
VOUT(Ty p) = 2.8V
150
230
VOUT(Ty p) = 2.5V
180
250
VOUT(Ty p) = 2.0V
VOUT(Ty p) < 2.0V
VOUT = 0.9 VOUT (Ty p)
400
Short Circuit Current
ISC
VOUT = 0V
200
Quiescent Current
IQ
1mA <= IOUT <= 150mA
REGLINE
VOUT > 1.8V
TA = 25 C
-0.25
VIN = VOUT + 0.5V to 5.5V
TJ = -40oC to 125oC
-0.4
TA = 25 C
-0.6
VIN = 2.5V to 5.5V
TJ = -40oC to 125oC
-1.0
TA = 25oC
-0.02
TJ = -40oC to 125oC
-0.03
TA = 25oC
-0.03
TJ = -40oC to 125oC
-0.04
TA = 25oC
-0.04
TJ = -40oC to 125oC
-0.05
VIN = VOUT + 1V
IOUT = 1mA to 150mA
1.8V < VOUT < 2.5V
Load Regulation
(See Note 2)
REGLOAD
o
1.2V <= VOUT <= 1.8V
VOUT >= 2.5V
VIN = VOUT + 1V
IOUT = 1mA to 150mA
1.2V <= VOUT <= 1.8V
VIN = 2.5V
IOUT = 1mA to 150mA
6
VIN(min)=2.5V
ILIM
Line Regulation
(See Note 1)
mV
500
Current Limit
o
%
600
mA
30
50
0.1
0.25
0.4
0.3
mA
0.6
µA
%/V
1.0
0.001
0.02
0.03
0.002
0.03
%/mA
0.04
0.015
0.04
0.05
Over Temperature Shutdown
OTS
150
o
Over Temperature Hysterisis
OTH
25
o
C
C
Rev.B.01
AME, Inc.
High PSRR, CSP, 150mA CMOS LDO
AME8820
n Electrical Specifications
Parameter
Symbol
Test Condition
Min
Typ
Max
Units
IOUT = 1mA
VOUT Temperature Coefficient
TC
VOUT > 1.8V VIN = VOUT + 1V
ppm/oC
30
1.2V <= VOUT <= 1.8V VIN = 2.5V
VOUT >= 2.5
65
VIN = VOUT + 1V
IOUT = 100mA,
Power Supply Rejection
PSRR
COUT = 4.7µF,
Freq.= 1KHz
1.8V <= VOUT < 2.5V
1.2V <= VOUT < 1.8V
65
VIN = 2.5V
Enable Input Threshold
Voltage
VENH
VENL
2.5V <= VIN <= 5.5V
dB
60
VIN = VOUT + 1V
1.4
V
0.3
V
Enable Input Bias Current
IEN
VIN = 5V, EN = 0V or 5V
0.1
1
µA
Shutdown Supply Current
ISD
VIN = 5V, VEN = 0V
0.5
1
µA
∆Vout
× 100%
∆Vin
Note 1: Line Regulation =
Vout
∆Vout
×100%
Vout
Note 2: Load Regulation =
∆I (mA)
Rev.B.01
7
AME, Inc.
AME8820
High PSRR, CSP, 150mA CMOS LDO
n Detailed Description
The AME8820 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 150mA. During thermal
shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops
below 125oC.
The AME8820 switches from voltage mode to current
mode when the load exceeds the rated output current.
This prevents over-stress.
n External Capacitors
The AME8820 is stable with an output capacitor to
ground of 1µF or larger. 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.
n Board layout Recommendations
to Improve PSRR and Output Noise
To improve AC measurements like transient response,
PSRR, and output noise, it is recommended that the board
should be designed with separate ground planes for VIN
and VOUT, with each ground plane connected only at the
ground pin of the device.
n Over Current Protection and
Short circuit Protection
During normal operation, the AME8820 limits output
current to approximately 400mA. When current limiting
engages, the output voltage scales back linearly until the
overcurrent condition ends.
When the output voltage is lower than approximately
0.8V,call short circuit , the AME8820 limits output current
to approximately 200mA (fold back current). When short
circuit protection engages, regulator operation resumes
until removed the short circuit condition. Over current and
short circuit protection prevent gross device failure, care
should be taken not to exceed the power dissipation ratings of the package
A second capacitor is recommended between the input and ground to stabilize VIN. The input capacitor should
be at least 1µF to have a beneficial effect.
n Enable
The Enable Pin is normally pull-high. When disable, it
pulled low, the PMOS pass transistor shut off. All internal circuits are power down. Under this circumstance,
the standby current is less than 1µA. This pin can’t be
floating.
8
Rev.B.01
AME, Inc.
High PSRR, CSP, 150mA CMOS LDO
AME8820
n Over Temperature Protection
As protection from damage due to excessive junction temperatures, the AME8820 has internal protection circuit. When junction temperature reaches approximately 150oC, the output device is turned off. Once
the device has cooled down to below approximately
125oC, regulator operation resumes.
For reliable operation,design is for worst case junction temperature of < 125oC taking into account worst
case ambient temperature and load conditions. Depending on each package type, presenting different
power dissipation, thermal resistance, and ambient
temperature, the thermal protection circuit may cycle
on and off. This cycling limits the dissipation of the
regulator, protecting it from damage due to overheating.
Any tendency to activate the thermal protection circuit indicates excessive power dissipation or inadequate heatsink. For reliable operation, junction temperature should be limited to +125oC maximum. To
estimate the margin of safety in a complete Power
design (including heatsink), increase the ambient temperature until the thermal protection is triggered; use
worst-case loads and signal conditions. For good reliability, thermal protection should trigger at least +35oC
above the maximum expected ambient condition of
your particular application. This configuration produces
a worst-case junction temperature of +125oC at the
highest expected ambient temperature and worst-case
load. The internal protection circuitry of the AME8820
has designed to protect against overload conditions.
It was not intended to replace proper heatsinking. Continuously running the AME8820 into Thermal protection disables the output when the thermal shutdown
will degrade device reliability.
Using equation (1) and (2) to calculate T J :
TJ = TA + (PD x RθJA)
(1)
PD = (VIN-VOUT) x IOUT + VIN x IQ
(2)
Rev.B.01
9
AME, Inc.
High PSRR, CSP, 150mA CMOS LDO
AME8820
Dropout Voltage vs Temperature
Output Voltage vs Load Current
180
3.3505
3.3405
VIN=4.3V
TA=25oC
160
Dropout Voltage (V)
Output Voltage (V)
3.3305
3.3205
3.3105
3.3005
3.2905
3.2805
140
100
80
60
3.2705
40
3.2605
20
3.2505
0
15
30
45
60
75
90
105
120
135
0
-40
150
Output Noise Spectral Density
(nV / Hz )
Output Voltage (V)
35
50
65
80
95
110 125
400
VIN=4.3V
IOUT=1mA
3.27
3.26
3.25
IOUT=150mA
3.24
-25
-10
5
20
35
50
Temperature
65
80
95
300
200
IOUT=1mA
100
IOUT=150mA
0
100
110 125
1000
(oC)
10000
100000
Frequency (Hz)
Quiescent Current vs Temperature
Output Impedance vs Frequency
50
2.0
VIN=4.3V
1.8
IOUT=150mA
40
Output Impedance (Ω)
Quiescent Current (µA)
20
Output Noise Spectral Density
3.23
35
30
25
IOUT=1mA
20
15
10
1.6
1.4
1.2
1.0
IOUT=50mA
0.8
IOUT=150mA
0.6
0.4
0.2
5
-25
-10
5
20
35
50
65
Temperature (oC)
10
5
Output Voltage vs Temperature
3.28
0
-40
-10
Temperature (oC)
3.29
45
-25
Load Current (mA)
3.30
3.22
-40
VIN=4.3V
IOUT=150mA
120
80
95
110
125
0
10
100
1000
10000
100000
1000000
Frequency (Hz)
Rev.B.01
AME, Inc.
High PSRR, CSP, 150mA CMOS LDO
AME8820
Load Transient Response
5.5
4.3
Output Current
(mA)
Input Voltage
(V)
Line Transient Response
200
100
20
-20
Output Voltage
(mV)
Output Voltage
(mV)
0
-50
Time (µS)
Power Supply Ripple Rejection
Power Supply Ripple Rejection
110
VIN=4.3V
IOUT=1mA
100
90
VIN=4.3V
IOUT=150mA
100
90
80
80
PSRR (dB)
PSRR (dB)
0
Time (µS)
110
70
60
50
70
60
50
40
40
30
30
20
20
10
10
50
1K
100K
10M
Frequency (Hz)
10
10
1K
100K
10M
Frequency (Hz)
Rising Time
4.3V
3.3V
EN
VOUT
Time (µS)
Rev.B.01
11
AME, Inc.
High PSRR, CSP, 150mA CMOS LDO
AME8820
n Date Code Rule
:Year Code
w: Work Week Code
A:
B:
01&02
03&04
K:
21&22
L:
U:
23&24
V:
41&42
xxx0
W
W
43&44
xxx1
W
W
W
W
C:
05&06
M:
25&26
W:
45&46
xxx2
D:
07&08
N:
27&28
X:
47&48
xxx3
W
W
E:
09&10
O:
29&30
Y:
49&50
xxx4
W
W
F:
11&12
P:
31&32
Z:
51&52
xxx5
W
W
G:
13&14
Q:
33&34
xxx6
W
W
H:
15&16
R:
35&36
xxx7
W
W
I:
17&18
S:
37&38
xxx8
W
W
39&40
xxx9
W
W
J:
19&20
T:
n Tape & Reel Dimension
CSP-4 (4Bumps)
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Package
CSP-4
(4Bumps)
12
Carrier Width (W)
8.0 +0.3 mm
-0.1
Pitch (P)
Part Per Full Reel
Reel Size
4.0±0.1 mm
3000pcs
180±1 mm
Rev.B.01
AME, Inc.
High PSRR, CSP, 150mA CMOS LDO
AME8820
n Package Dimension
CSP-4 (4Bumps)
Bottom View
SYMBOLS
C B
A
Datum
D
E
F
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX
A
0.310
0.350
0.012
0.014
B
0.810
0.850
0.032
0.033
C
1.060
1.260
0.042
0.050
D
0.310
0.350
0.012
0.014
E
0.810
0.850
0.032
0.033
F
1.060
1.260
0.042
0.050
G
0.020
0.050
0.001
0.002
H
0.380
0.450
0.015
0.018
I
0.595
0.705
0.023
0.028
J
0.300
0.340
0.012
0.013
Side View
Ball Pitch
500 um
J
G
H
I
Rev.B.01
13
www.ame.com.tw
E-Mail: sa[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. , June 2007
Document: 1041-DS8820-B.01
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.
Tel: 886 2 2627-8687
Santa Clara, CA. 95054-2438
Tel : (408) 988-2388
Fax: 886 2 2659-2989
Fax: (408) 988-2489