AME AME8838BEIT285Z High psrr, 150ma cmos ldo Datasheet

AME, Inc.
AME8838
n General Description
The AME8838 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 SC-70-5, SC-70-4 & SOT-23 packages are 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.
High PSRR, 150mA CMOS LDO
n Functional Block Diagram
OUT
IN
Overcurrent
Shutdown
Thermal
Shutdown
EN
R1
-
The AME8838 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 30µA Quiescent Current
l Over-Temperature Shutdown
l Current Limiting
l Excellent PSRR (Typ. 65dB)
l Power-Saving Shutdown Mode
l Ultra-small SC-70-5, SC-70-4 & SOT-23
Packages
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
n Typical Application
IN
IN
IN
l Input Voltage Range (2V - 6V)
l All AME's lead free Products Meet RoHS
Standard.
EN
OUT
AME8838 OUT
GND
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.E.04
1
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
n Pin Configuration
SC-70-5
Top View
SC-70-5
Top View
5
4
AME8838AEIV
5
4
1. IN
1. OUT
2. GND
AME8838
3. EN
2. GND
AME8838
4. NC
2
3
5. NC
1
2
3
* Die Attach:
* Die Attach:
Conductive Epoxy
Conductive Epoxy
SC-70-4
Top View
SOT-23
Top View
AME8838AEET
3
4
3
1. GND
3. IN
AME8838AEIU
1. EN
2. OUT
AME8838
3. IN
4. EN
5. OUT
1
AME8838BEIV
2. GND
AME8838
3. OUT
4. IN
* Die Attach:
1
2
Non-Conductive Epoxy
1
2
* Die Attach:
Conductive Epoxy
2
Rev.E.04
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
n Pin Description
AME8838AEIV SC-70-5
Pin Number
Pin Name
1
IN
2
GND
3
EN
Enable pin.
When pulled low, the PMOS pass transistor turns off, current consuming
less than 1µA.
4
NC
No Connection.
5
OUT
Pin Description
Input voltage pin.
It should be decoupled with 1µF or greater capacitor.
Ground connection pin.
LDO voltage regulator output pin.
It should be decoupled with a 1µF or greater value low ESR ceramic
capacitor.
AME8838BEIV SC-70-5
Pin Number
Pin Name
Pin Description
1
OUT
LDO voltage regulator output pin.
It should be decoupled with a 1µF or greater value low ESR ceramic
capacitor.
2
GND
Ground connection pin.
3
IN
Input voltage pin.
It should be decoupled with 1µF or greater capacitor.
4
EN
Enable pin.
When pulled low, the PMOS pass transistor turns off, current consuming
less than 1µA.
5
NC
No Connection.
AME8838AEET SOT-23
Pin Number
Pin Name
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
Rev.E.04
Pin Description
Input voltage pin.
It should be decoupled with 1µF or greater capacitor.
3
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
n Pin Description
AME8838AEIU SC-70-4
4
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
GND
Ground connection pin.
3
OUT
LDO voltage regulator output pin.
It should be decoupled with a 1µF or greater value low ESR ceramic
capacitor.
4
IN
Input voltage pin.
It should be decoupled with 1µF or greater capacitor.
Rev.E.04
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
n Ordering Information
AME8838 x x x x xxx x
Special Feature
Output Voltage
Number of Pins
Package Type
Operating Ambient Temperature Range
Pin Configuration
Pin
Configuration
A: 1. IN
(SC-70-5) 2. GND
3. EN
4. NC
5. OUT
B: 1. OUT
2. GND
3. IN
4. EN
5. NC
(SC-70-5)
Operating Ambient
Temperature
Range
E: -40OC to 85OC
Package
Type
E: SOT-2X
I: SC-70
Number
of
Pins
T: 3
V: 5
U: 4
Output
Voltage
120:
150:
180:
250:
270:
285:
300:
310:
330:
V=1.2V
V=1.5V
V=1.8V
V=2.5V
V=2.7V
V=2.85V
V=3.0V
V=3.1V
V=3.3V
Special Feature
Y: Lead free & Low profile
Z: Lead free
A: 1. EN
2. GND
3. OUT
4. IN
(SC-70-4)
A: 1. GND
(SOT-23) 2. OUT
(TSOT-23) 3. IN
Rev.E.04
5
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
n Ordering Information
Part Number
Marking*
Output Voltage
Package
Operating Ambient
Temperature Range
AME8838AEIU180Z
BLFw
1.8V
SC-70-4
- 40oC to 85oC
AME8838AEIU270Z
BLGw
2.7V
SC-70-4
- 40oC to 85oC
AME8838AEIU280Z
BLHw
2.8V
SC-70-4
- 40oC to 85oC
AME8838AEIV150Z
BFDw
1.5V
SC-70-5
- 40oC to 85oC
AME8838AEIV180Z
BELw
1.8V
SC-70-5
- 40oC to 85oC
AME8838AEIV250Z
BFEw
2.5V
SC-70-5
- 40oC to 85oC
AME8838AEIV270Z
BHSw
2.7V
SC-70-5
- 40oC to 85oC
AME8838AEIV280Z
BFFw
2.8V
SC-70-5
- 40oC to 85oC
AME8838AEIV285Z
BHVw
2.85V
SC-70-5
- 40oC to 85oC
AME8838AEIV300Z
BFGw
3.0V
SC-70-5
- 40oC to 85oC
AME8838AEIV310Z
BHTw
3.1V
SC-70-5
- 40oC to 85oC
AME8838AEIV330Z
BEKw
3.3V
SC-70-5
- 40oC to 85oC
AME8838AEET180Z
BFPww
1.8V
SOT-23
- 40oC to 85oC
Note: w & ww represent the date code and pls refer to Date Code Rule page on Package Dimension.
* A line on top of the first letter represents lead free plating such as BLFw.
Please consult AME sales office or authorized Rep./Distributor for the availability of package type.
6
Rev.E.04
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
n Absolute Maximum Ratings
Parameter
Maximum
Unit
Input Voltage
-0.3 to 7
V
EN Voltage
-0.3 to 7
V
Output Voltage
- 0.3 to VIN + 0.3
V
Output Current
PD / (V IN - VOUT)
mA
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)
Thermal Resistance
(Junction to Case)
Internal Power Dissipation
Package
Die Attach
SOT-23
Non-Conductive
Epoxy
SC-70-4
SC-70-5
Conductive Epoxy
SOT-23*
Non-Conductive
Epoxy
SOT-23
Non-Conductive
Epoxy
SC-70-4
SC-70-5
Conductive Epoxy
Symbol
Maximum
Unit
260
θJA
331
θJC
o
C/W
81
400
PD
mW
300
Maximum Junction Temperature
150
o
Solder Iron (10 Sec)**
350
o
C
C
* Measure θJC on backside center of molding compund if IC has no tab.
** MIL-STD-202G 210F
Rev.E.04
7
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
n Electrical Specifications (Contd.)
VOUT(nom) > 2.0V, VIN=VOUT(nom)+ 0.5V; VOUT
unless otherwise noted.
Parameter
Input Voltage
Output Voltage Accuracy
Symbol
≤ 2V, VIN = 2.5V, VEN = VIN, TJ = -40 to 125OC, CIN = COUT = 1µF
Test Condition
Min
VIN
VOUT(nom)
IOUT = 1mA, TA = 25o C
o
IOUT = 1mA, TJ = -40 to 125 C
Typ
Max
Units
Note1
6
V
-1.5
1.5
-3
3
IOUT=80mA, VOUT>= 3.0V
80
170
120
240
90
200
135
270
120
250
180
360
VOUT=VOUT(nom) -2%VOUT(nom)
IOUT=150mA, VOUT>= 3.0V
VOUT=VOUT(nom) -2%VOUT(nom)
IOUT=80mA, 2.5V<=VOUT< 3.0V
VOUT=VOUT(nom) -2%VOUT(nom)
Dropout Voltage
(See Note 1)
VDROPOUT
%
mV
IOUT=150mA, 2.5V<=VOUT< 3.0V
VOUT=VOUT(nom) -2%VOUT(nom)
IOUT=80mA, 2.0V<VOUT< 2.5V
VOUT=VOUT(nom) -2%VOUT(nom)
IOUT=150mA, 2.0V<VOUT< 2.5V
VOUT=VOUT(nom) -2%VOUT(nom)
IOUT=150mA, VOUT<=2.0V, VDROPOUT=2.5V-VOUT
Current Limit
ILIM
VOUT = 0.8xVOUT(nom) , TA = 25oC
Short Circuit Limit
ISC
VOUT = 0V, TA = 25oC
Quiescent Current
IQ
TA = 25oC, VIN = 6V, 1mA < IOUT < 150mA
Line Regulation
(See Note 2)
REGLINE
200
REGLOAD
o
IOUT = 1mA, VOUT > 2.0V
TA = 25 C
-0.25
VIN = VOUT +0.5V to VIN = 6V
TJ = -40 to125oC
-0.4
o
IOUT = 1mA, VOUT <= 2.0V
TA = 25 C
-0.4
VIN = 2.5V to VIN = 6V
TJ =-40 to 125oC
-0.6
IOUT = 1 to 150mA
500
mA
200
VOUT > 2.0V
Load Regulation
(See Note 3)
350
VIN = VOUT + 0.5V
VOUT <= 2.0V
30
45
0.1
0.25
µA
0.4
0.2
0.4
%/V
0.6
-0.02 0.0025 0.02
%/mA
-0.04
0.004
0.04
VIN = 2.5V
Over Temperature Shutdown
OTS
IOUT = 0mA
160
o
Over Temperature Hysterisis
OTH
IOUT = 0mA
40
o
VOUT Temperature Coefficient
TC
Power Supply Ripple Rejection
8
PSRR
VIN = 4.3V, VOUT = 3.3V, COUT = 10µf
IOUT = 100mA, f = 1kHz
C
C
30
ppm/oC
65
dB
Rev.E.04
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
n Electrical Specifications
Symbol
Test Condition
eN
f = 10Hz to 100kHz, IOUT = 10mA
VENH
VOUT >= VOUT(min)
1.4
VIN
V
VENL
VOUT <= 0.2V
0
0.3
V
Enable Input Bias Current
IEN
VIN = 6V, VEN = 0V or 6V
0.01
1
µA
Shutdown Supply Current
ISD
VIN = 6V, VEN = 0V
0.5
1
µA
Shutdown Output Voltage
VO,SD
IOUT = 1mA
0.2
V
Parameter
Output Voltage Noise
Enable Input Threshold
Min
Typ
Max
Units
µVrms
40
Note1: If VOUT(nom) > 2.0V, VIN(min)=VOUT(nom)+VDROPOUT. If VOUT(nom)<=2.0V, VIN(min)=2.5V.
∆Vout
×100%
∆
Vin
Note2: Line Regulation =
Vout
∆Vout
×100%
Note3: Load Regulation = Vout
∆I (mA)
Rev.E.04
9
AME, Inc.
AME8838
High PSRR, 150mA CMOS LDO
n Detailed Description
n Enable
The AME8838 family of CMOS regulators contain a
PMOS pass transistor, voltage reference, error amplifier,
over-current protection, and thermal shutdown.
The Enable Pin is normally pull-high. When activated
pulled low, the PMOS pass transistor shuts off, and all
internal circuits are powered down. In this state, the stand
by current is less than 1µA. This pin can’t be floating.
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 130oC.
The AME8838 switches from voltage mode to current
mode when the load exceeds the rated output current.
This prevents over-stress.
n External Capacitors
The AME8838 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.
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.
10
Rev.E.04
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
Output Impedance vs Frequency
550
2.0
500
1.8
Output Impedance (Ω)
Dropout Voltage (mV)
Dropout Voltage vs Temperature
450
400
350
300
250
200
150
100
1.6
1.4
1.2
1.0
IO=50mA
0.8
0.6
0.4
IO=100mA
0.2
50
0
-40
-25
-10
5
20
35
50
65
o
80
95
0.0
10
110 125
100
1000
3.325
3.315
Output Voltage (V)
3.32
1000000
3.315
3.31
3.305
3.30
3.295
3.29
IO=1mA
3.310
3.305
3.300
IO=150mA
3.295
3.290
3.285
3.280
3.275
3.285
30
45
60
75
90
105
120
135
150
-25
-10
5
20
35
50
65
80
95
Temperature (oC)
Load Transient Response
Line Transient Response
∆i = 25mA/µs
∆t
200
100
0
50
0
-50
Time (µs)
Input Voltage
(V)
Load Current (mA)
Output Voltage Output Current
(mV)
(mA)
15
3.270
-40
110
125
5.3
4.3
Output Voltage
(mV)
Output Voltage (V)
3.320
Rev.E.04
100000
Output Voltage vs Temperature
Output Voltage vs Load Current
3.33
0
10000
Frequency (Hz)
Temperature ( C)
20
-20
Time (µs)
11
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
Quiescent Current vs Temperature
Quiescent Current (µA)
40
35
30
25
20
15
10
5
0
-40
-25
-10
5
20
35
50
65
80
95
110 125
Temperature (oC)
Rising Time
3.8V
3.3V
EN
VOUT
20µs/div
12
Rev.E.04
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
n Date Code Rule
For SC-70 Package Only
Marking
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
Date Code
Year
For SOT-23 Package
Marking
A
A
A
W
W
xxx0
A
A
A
W
W
xxx1
A
A
A
W
W
xxx2
A
A
A
W
W
xxx3
A
A
A
W
W
xxx4
A
A
A
W
W
xxx5
A
A
A
W
W
xxx6
A
A
A
W
W
xxx7
A
A
A
W
W
xxx8
A
A
A
W
W
xxx9
Rev.E.04
13
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
n Tape and Reel Dimension
SOT-23
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-23
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
14
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
Rev.E.04
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
n Tape and Reel Dimension
SC-70-4
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Rev.E.04
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SC-70-4
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
15
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
n Package Dimension
SC-70-5
Top View
Side View
SYMBOLS
D
0.15(0.006)
e1
A
E/2
E1/2
E
E1
0.15(0.006)
A
C
e
See Detail A
B
.10(0.004) M
CAB
b
Front View
A2
A
SEATING PLANE
.10(0.004)
A1
C
Detail A
C
INCHES
MIN
MAX
MIN
MAX
A
0.80
1.10
0.031
0.043
A1
0.00
0.10
0.000
0.004
A2
0.80
1.00
0.031
0.040
b
0.15
0.30
0.006
0.012
b1
0.15
0.25
0.006
0.010
c
0.08
0.25
0.003
0.010
c1
0.08
0.20
0.003
0.008
D
1.90
2.15
0.074
0.084
E
2.00
2.20
0.078
0.086
E1
1.15
1.35
0.045
0.055
C
D
MILLIMETERS
e
0.65BSC
0.0255BSC
e1
1.30BSC
0.0512BSC
L
0.26
o
θ1
0
θ2
4o
0.46
8
o
10 o
0.010
0
o
4o
0.018
8o
10o
SECTION A-A
θ1
(b)
b1
c1 c
.15(.0059)
H
GAGE
PLANE
BASE METAL
θ
L
16
Rev.E.04
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
n Package Dimension
SC-70-4
D
e1
θ
e
SYMBOLS
L
E
E1
L1
0.20
c
d
b
b1
SIDE VIEW
MAX
MIN
MAX
A
0.900
1.100
0.035
0.043
A1
0.000
0.100
0.000
0.004
A2
0.900
1.000
0.035
0.039
b
0.250
0.400
0.010
0.016
b1
0.350
0.500
0.014
0.020
c
0.080
0.150
0.003
0.006
d
0.050 TYP
0.002 TYP
D
2.000
2.200
0.079
0.087
E
1.150
1.350
0.045
0.053
E1
2.150
2.450
0.085
0.096
e1
L
L1
θ
A2
INCHES
MIN
e
TOP VIEW
MILLIMETERS
0.650 TYP
1.200
0.026TYP
1.400
0.525 REF
0.260
0
o
0.055
0.021 REF
0.460
8
0.047
o
0.010
0
o
0.018
8o
A
A1
FRONT VIEW
Rev.E.04
17
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8838
n Package Dimension
SOT-23
Top View
Side View
SYMBOLS
D
L
H
E
θ1
MAX
MIN
MAX
A
1.00
1.40
0.0394
0.0551
A1
0.00
0.15
0.0000
0.0059
b
0.35
0.50
0.0138
0.0197
C
0.09
0.25
0.0035
0.0098
D
2.70
3.10
0.1063
0.1220
E
1.40
1.80
0.0551
0.0709
1.90 BSC
e
H
2.40
3.00
0
o
10
0.09449 0.11811
0.0138BSC
o
0o
10 o
b
18
A1
A
θ1
0.0748 BSC
0.35BSC
L
Front View
INCHES
MIN
C
e
MILLIMETERS
Rev.E.04
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. , September 2007
Document: 1003-DS8838-E.04
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
Santa Clara, CA. 95054-2438
Taipei 114, Taiwan.
Tel: 886 2 2627-8687
Fax: 886 2 2659-2989
Tel : (408) 988-2388
Fax: (408) 988-2489
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