AME AME8890TEEVZ 150ma cmos ldo Datasheet

AME
AME8890
n General Description
The AME8890 is a fixed 1.2V of positive, linear regulator feature low quiescent current (60µA typ.) with low dropout voltage, making them ideal for battery applications.
The space-saving SOT-25/TSOT-25 packages are attractive for "Pocket" and "Hand Held" applications.
150mA CMOS LDO
n Functional Block Diagram
VOUT
VIN
Overcurrent
Shutdown
This rugged device has both Thermal Shutdown, and
Current Fold-back to prevent device failure under the
"Worst" operating conditions.
Thermal
Shutdown
EN
R1
An additional feature is a "Power Good" detector, which
pulls low when the output is out of regulation.
AMP
The AME8890 is stable with an output capacitor of 2.2µF
or greater.
PG
Delay
R2
n Features
l Very Low Dropout Voltage
GND
l Guaranteed 150mA Output
l Accurate to within 3%
l 60µA Quiescent Current
l Over-Temperature Shutdown
n Typical Application
l Current Limiting
l Short Circuit Current Fold-back
l Power Good Output Function
VIN
VIN
VOUT
AME8890
l Power-Saving Shutdown Mode
PG
l Space-Saving SOT-25/TSOT-25
l Low Temperature Coefficient
l All AME’ s Lead Free Product Meet RoHS
V OUT
GND
EN
C1
C2
1µF
2.2µF
5V
Standards
n Applications
l Instrumentation
l Portable Electronics
l Wireless Devices
l Cordless Phones
l PC Peripherals
l Battery Powered Widgets
Rev.F.03
1
AME
AME8890
150mA CMOS LDO
n Typical Application
47KΩ
1 V
IN
Optional: EN May
Be Connected to VI
2
3
GND
VOUT 5
1.2V
2.2uF
AME8890
EN
4
PG
Shutdown
Figure 1. Typical Application Schematic
VCC3_3
V CC1_2
1
2
3
1uF
VIN
GND
EN
VOUT 5
10KΩ
AME8890
PG
4
2.2uF
Figure 2. Typical Application For Processor VID Code Power Sequencing Schematic
2
Rev.F.03
AME
AME8890
150mA CMOS LDO
n Pin Configuration
SOT-25/TSOT-25
Top View
5
AME8890
4
1. IN
2. GND
AME8890
3. EN
4. PG
5. OUT
1
2
3
* Die Attach:
Conductive Epoxy
n Pin Description
Pin Number
Pin Name
1
IN
2
GND
3
EN
Enable/Shutdown (Input) : CMOS compatible input.
Logic high = enable;logic low = shutdown.
Do not leave open.
4
PG
Power Good Output
5
OUT
Rev.F.03
Pin Description
Supply Input
Ground
Regulator Output
3
AME
AME8890
150mA CMOS LDO
n Ordering Information
AME8890 x x x x x
Special Feature
Number of Pins
Package Type
Operating Ambient Temperature Range
Product Grade or Option
Product
Grade
or Option
Operating Ambient
Temperature Range
T: 1.2V
E: -40O C to +85O C
Package Type
E: SOT-2X
Number of
Pins
V: 5
Special Feature
L: Low Profile
Y : Lead Free & Low Profile
Z: Lead Free
n Ordering Information
Part Number
Marking*
Output Voltage
Package
Operating Ambient
Temperature Range
AME8890TEEV
ATBww
1.2V
SOT-25
- 40oC to +85oC
AME8890TEEVL
ATBww
1.2V
TSOT-25
- 40oC to +85oC
AME8890TEEVZ
ATBww
1.2V
SOT-25
- 40oC to +85oC
AME8890TEEVY
ATBww
1.2V
TSOT-25
- 40oC to +85oC
Note: ww represents the date code and pls refer to Date Code Rule before Package Dimension.
* A line on top of the first character represents lead free plating such as ATBww.
Please consult AME sales office or authorized Rep./Distributor for package type availability.
4
Rev.F.03
AME
AME8890
150mA CMOS LDO
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
PG Voltage
-0.3 to VIN +0.3
V
Output Current
PD / (VIN - 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
Package
Die Attach
Symbol
Maximum
Unit
Thermal Resistance*
(Junction to Case)
SOT-25
TSOT-25
Conductive Epoxy
θJC
81
o
C/W
Thermal Resistance
(Junction to Ambient)
SOT-25
TSOT-25
Conductive Epoxy
θJA
260
o
C/W
Internal Power Dissipation
SOT-25
TSOT-25
Conductive Epoxy
PD
400
mW
Maximum Junction Temperature
150
o
C
Solder Iron(10 Sec)**
350
o
C
* Measure θJC on center of molding compound if IC has no tab.
** MIL-STD-202G 210F
Rev.F.03
5
AME
AME8890
150mA CMOS LDO
n Electrical Specifications
VIN = 2.7V, VEN = VIN, IOUT=100µA,TA = 25OC unless otherwise noted
Parameter
Symbol
Input Voltage
VIN
Output Voltage Accuracy
VO
Dropout Voltage
Current Limit
VDROPOUT
Test Condition
IO=0.1mA
IO=150mA
VOUT=VO -2.0%
Min
Typ
Max
Units
2.7
6
V
-3
3
%
1.0V<VO(NOM)<=2.0V
1300
2.0V<VO(NOM)<=2.8V
N/A
2.8V<VO(NOM)
N/A
ILIM
VO< 0.1V
150
350
Quiescent Current
IQ
VIN =6V, IO=0mA, VO=VO (nom)
55
Ground Pin Current
IGND
VIN =6V, IO =1mA to 150mA
35
mV
mA
80
µA
µA
Line Regulation
∆VOUT
×100%
∆VIN
Load Regulation
REGLINE
REGLOAD
IO=100µA
1.0<= V O <= 2.0V
VIN =2.7V to 6V
IO=100µA to 150mA
-0.3
-4
0.3
1
4
%
%
Over Temperature Shutdown
OTS
150
o
Over Temperature Hysterisis
OTH
30
o
TC
30
VO Temperature Coefficient
Power Supply Rejection
Output Voltage Noise
EN Input Threshold
PSRR
eN
IO=100mA
CO=2.2µF
f=10Hz to 100kHz
IO=10mA
f=1kHz
50
f=10kHz
20
f=100kHz
15
Co=2.2µF
30
C
C
ppm/oC
dB
µVrms
VEH
1.6
Vin
V
VEL
0
0.4
V
IEH
VEN =VIN
0.1
µA
IEL
VEN =0V
0.1
µA
Shutdown Supply Current
ISD
VIN =5V, VO=0V, VEN =0V
0.5
Shutdown Output Voltage
VO,SD
Output Loading<=1200Ω , V=0V
Output Under Voltage
VUV
PG ON @ % of VOUT
PG Leakage Current
ILC
VPG=6V , PG is off
PG Voltage Low
VOL
ISINK=0.1mA
VPG Delay
TPGD
See Timing Diagram on page 9
EN Input Bias Current
0
1
µA
0.4
V
85
%VO(NOM)
µA
0.1
1.5
0.1
V
5
ms
Note1:VIN(min) =VOUT+VDROPOUT
6
Rev.F.03
AME
AME8890
150mA CMOS LDO
n Detailed Description
n Enable
The AME8890 family of CMOS regulators contain a
PMOS pass transistor, voltage reference, error amplifier,
over-current protection, thermal shutdown, and power
good function.
The Enable pin normally floats high. When actively,
pulled low, the PMOS pass transistor shuts off, and all
internal circuits are powered down. In this state, the quiescent current is less than 1µA. This pin behaves much
like an electronic switch.
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 300mA. During thermal shutdown,
the output voltage remains low. Normal operation is restored when the junction temperature drops below 120oC.
The AME8890 switches from voltage mode to current
mode when the load exceeds the rated output current.
This prevents over-stress. The AME8890 also incorporates current foldback to reduce power dissipation when
the output is short circuited. This feature becomes active
when the output drops below 0.8volts, and reduces the
current flow by 65%. Full current is restored when the
voltage exceeds 0.8 volts.
n Power Good
The AME8890 includes the Power Good feature. When
the output is not within +15% of the specified voltage, it
pulls low. This can occur under the following conditions:
1) Input Voltage too low.
2) During Over-Temperature.
3) During Over-Current.
4) If output is pulled up.
(Note: PG pin is an open-drain output.)
n External Capacitors
The AME8890 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.
Rev.F.03
7
AME
AME8890
150mA CMOS LDO
Output Voltage vs. Temperature
Quiescent Current vs. Temperature
1.2025
44
Quiescent Current (uA)
42
Output Voltage (V)
1.2020
1.2015
1.2010
1.2005
40
38
36
34
32
1.2000
-45
-5
25
55
30
-45
85
-5
0.50
2.2
0.45
0.40
0.35
0.30
0.25
-5
25
55
2.0
1.9
1.8
1.7
-45
85
-5
Short Circuit Current vs. Temperature
55
85
Dropout Voltage vs. Temperature
1.10
Dropout Voltage @ 150mA (V)
Short Circuit Current (mA)
25
Temperature (oC)
124
122
120
118
116
114
112
-5
25
Temperature (o C)
8
85
2.1
Temperature (o C)
110
-45
55
PG Delay Time vs. Temperature
2.3
PG Delay Time (mS)
Load Regulation 1-150mA (%)
Load Regulation vs. Temperature
0.55
0.20
-45
25
Temperature (oC)
Temperature ( o C)
55
85
1.05
1.00
0.95
0.90
0.85
-45
-5
25
55
85
Temperature (oC)
Rev.F.03
AME
AME8890
150mA CMOS LDO
n Timing Diagram
95%
95% 95%
VOUT
Fault Condition
VEN
Min-Max
VPG
Rev.F.03
1.5-5ms
1.5-5ms
9
AME
AME8890
150mA CMOS LDO
n Date Code Rule
Marking
Date Code
Year
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
n Tape and Reel Dimension
TSOT-25
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
10
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
TSOT-25
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
Rev.F.03
AME
AME8890
150mA CMOS LDO
n Tape and Reel Dimension
SOT-25
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Rev.F.03
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
11
AME
AME8890
150mA CMOS LDO
n Package Dimension
SOT-25
Top View
Side View
D
θ1
SYMBOLS
MILLIMETERS
MIN
1.20REF
E
H
A
PIN 1
L
S1
0.0472REF
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
2.60
θ1
0.07480 BSC
3.00
0.37BSC
L
0
o
10
0.10236 0.11811
0.0146BSC
o
0
o
10
0.95BSC
0.0374BSC
MILLIMETERS
INCHES
S1
o
A1
A
MAX
0.00
H
Front View
MIN
A1
e
e
MAX
INCHES
b
TSOT-25
Top View
Side View
D
θ1
E
H
SYMBOLS
PIN 1
L
S1
MIN
MAX
A+A1
0.90
1.25
0.0354
0.0492
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
H
1.90 BSC
2.40
S1
3.00
0
o
10
0.95BSC
0.09449 0.11811
0.0138BSC
o
0
o
10
o
0.0374BSC
A1
A
θ1
0.07480 BSC
0.35BSC
L
Front View
12
MAX
e
e
b
MIN
Rev.F.03
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: 2041-DS8890-F.03
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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