AME AME8833BEIV280Z High psrr, 150ma cmos ldo Datasheet

AME, Inc.
High PSRR, 150mA CMOS LDO
AME8833/8834
n General Description
n Functional Block Diagram
The AME8833 family of positive, linear regulators feature low quiescent current (50µA typ.) low dropout voltage and excellent PSRR, thus making them ideal for Telecommunications and other battery applications. The ultra-small SC-70 package is attractive for "Pocket" and
"Hand Held" applications.
AME8834’s output voltage can be adjusted with an
external resister divider.
OUT
IN
Overcurrent
Shutdown
Thermal
Shutdown
SHDN
R1
These rugged devices have both Thermal Shutdown,
and Current Fold-back to prevent device failure under the
"Worst" of operating conditions.
AMP
+
As an additional feature, the AME8833/8834 is stable
with an output capacitance of just extended 0.22µF or
greater.
R2
n Features
l
l
l
l
l
l
l
l
l
l
l
l
l
l
Stable with only 0.22µF output Cap
Very Low Dropout Voltage
Guaranteed 150mA Output
Accurate to within 1.0%
50µA Quiescent Current
Over-Temperature Shutdown
Current Limiting
Short Circuit Current Fold-back
Excellent PSRR (Typ. 70dB)
Power-Saving Shutdown Mode
Ultra-small SC-70 and SOT-25-L Package
Factory Pre-set Output Voltages
Low Temperature Coefficient
Input Voltage Range (2V - 5.5V)
Vref
GND
n Typical Application
IN
SHDN
IN
OUT
AME8833
GND
OUT
C2
C1
1µ
µF
0.22µ
µF
n Applications
l
l
l
l
l
l
l
l
l
l
Cellular Phones
Instrumentation
Portable Electronics
Wireless Devices
Cordless Phones
PC Peripherals
Battery Powered Widgets
Electronic Scales
Cameras
Telecommunications
OUT
IN
SHDN
IN
OUT
AME8834
GND
C1
R1
VREF
C2
R2
1
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8833/8834
n Pin Configuration
SC-70
Top View
5
4
AME8833
1
2
SOT-25-L
Top View
AME 8833AEIV
1. VIN
2. GND
3. SHDN
4. NC
5. VOUT
3
5
AME8833
1
SC-70
Top View
5
4
2
AME 8833BEIV
1. VOUT
2.
3.
4.
5.
GND
VIN
SHDN
NC
3
5
4
AME8834
1
2
2
3
3
4
AME8833
1
2
AME 8833BEEV
1. VOUT
2. GND
3. VIN
4. SHDN
5. NC
3
SOT-25-L
Top View
SC-70
Top View
5
2
AME 8833AEEV
1. VIN
2. GND
3. SHDN
4. NC
5. VOUT
SOT-25-L
Top View
AME8833
1
4
AME 8834AEIV
1. VIN
2. GND
3. SHDN
4. ADJ
5. VOUT
5
4
AME8834
1
2
3
AME 8834AEEV
1. VIN
2. GND
3. SHDN
4. ADJ
5. VOUT
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8833/8834
n Ordering Information
AME8833 x x x x x x
Special Feature
Voltage
Number of Pins
Package Type
Operating Temperature Range
Pin Configuration
Pin
Configuration
A: 1.
2.
3.
4.
5.
VIN
GND
SHDN
NC
VOUT
B: 1.
2.
3.
4.
5.
VOUT
GND
VIN
SHDN
NC
Operating
Temperature
Range
E: -40OC to 85OC
Package Type
E: SOT-2X
I: SC-70
Number
of
Pins
V: 5
Voltage
180:
200:
250:
270:
280:
285:
300:
320:
330:
V=1.8V
V=2.0V
V=2.5V
V=2.7V
V=2.8V
V=2.85V
V=3.0V
V=3.2V
V=3.3V
Special Feature
L: Low profile
Y: Lead free & Low profile
Z: Lead free
3
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8833/8834
n Ordering Information
AME8834 x x x x x x
Special Feature
Voltage
Number of Pins
Package Type
Operating Temperature Range
Pin Configuration
Pin
Configuration
A: 1.
2.
3.
4.
5.
4
VIN
GND
SHDN
ADJ
VOUT
Operating
Temperature
Range
E: -40OC to 85OC
Package Type
E: SOT-2X
I: SC-70
Number
of
Pins
Voltage
Special Feature
V: 5
ADJ: Adjustable
L: Low profile
Y: Lead free & Low profile
Z: Lead free
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8833/8834
n Ordering Information
Part Number
Marking
Output Voltage
Package
Operating Temp. Range
AME8833AEIV180
AWAw
1.8V
SC-70
- 40oC to + 85oC
AME8833AEIV250
AWBw
2.5V
SC-70
- 40oC to + 85oC
AME8833AEIV270
AXFw
2.7V
SC-70
- 40oC to + 85oC
AME8833AEIV280
AWDw
2.8V
SC-70
- 40oC to + 85oC
AME8833AEIV285
AVZw
2.85V
SC-70
- 40oC to + 85oC
AME8833AEIV300
AWEw
3.0V
SC-70
- 40oC to + 85oC
AME8833AEIV320
AXGw
3.2V
SC-70
- 40oC to + 85oC
AME8833AEIV330
AWCw
3.3V
SC-70
- 40oC to + 85oC
AME8833AEEV180L
AWMww
1.8V
SOT-25
- 40oC to + 85oC
AME8833AEEV250L
AWNww
2.5V
SOT-25
- 40oC to + 85oC
AME8833AEEV270L
AXEww
2.7V
SOT-25
- 40oC to + 85oC
AME8833AEEV280L
AWOww
2.8V
SOT-25
- 40oC to + 85oC
AME8833AEEV285L
AWPww
2.85V
SOT-25
- 40oC to + 85oC
AME8833AEEV300L
AWQww
3.0V
SOT-25
- 40oC to + 85oC
AME8833AEEV330L
AWRww
3.3V
SOT-25
- 40oC to + 85oC
AME8833AEIV180Z
AWAw
1.8V
SC-70
- 40oC to + 85oC
AME8833AEIV250Z
AWBw
2.5V
SC-70
- 40oC to + 85oC
AME8833AEIV280Z
AWDw
2.8V
SC-70
- 40oC to + 85oC
AME8833AEIV285Z
AVZw
2.85V
SC-70
- 40oC to + 85oC
AME8833AEIV300Z
AWEw
3.0V
SC-70
- 40oC to + 85oC
AME8833AEIV330Z
AWCw
3.3V
SC-70
- 40oC to + 85oC
AME8834AEIVADJ
AWJw
Adjustable
SC-70
- 40oC to + 85oC
Note: w represents date code ( A thru Z ) : 2 work weeks per character.
Please consult AME sales office or authorized Rep./Distributor for other output voltage and package type availability.
5
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8833/8834
n Absolute Maximum Ratings
Parameter
Maximum
Unit
6
V
Output Current
PD / (VIN - VO)
mA
Output Voltage
GND - 0.3 to V IN + 0.3
V
Input Voltage
ESD Classification
B
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
n Recommended Operating Conditions
Parameter
Rating
- 40 to + 85
o
- 40 to + 125
o
Ambient Temperature Range
Junction Temperature
Unit
C
C
n Thermal Information
Parameter
6
Maximum
Unit
Thermal Resistance (θja)
SOT-25
260
o
Thermal Resistance (θjc )
SOT-25
81
o
Thermal Resistance (θja)
SC-70
331
o
Thermal Resistance (θjc )
SC-70
224
o
C/W
C/W
C/W
C/W
Maximum Junction Temperature
150
o
Maximum Lead Temperature (10 Sec)
300
o
C
C
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8833/8834
n Electrical Specifications
VIN=VOUT+0.5V, VSHDN=VIN, TA = 25OC,CIN=COUT=1µF, AME8834 is tested with 2.45V output, unless otherwise noted
Parameter
Input Voltage
Test Condition
Symbol
Min
V IN
o
AME8833
IO=0.1mA
AME8834
Output Voltage Accuracy
VO
AME8833
IO=150mA
25 C
o
V DROPOUT
Current Limit
ILIM
Foldback Current
IFB
Units
5.5
V
-1
1
-2
2
25oC
-1.5
1.5
-40oC~85oC
-2.5
2.5
25oC
-2
2
-40 C~85 C
-2.5
2.5
25oC
-2
2
o
o
-40oC~85oC
V OUT >= 2.0V
IO=150mA
Typ
-40 C~85 C
AME8834
Dropout Voltage
o
Max
Note1
V OUT < 2.0V
V OUT=V O(NOM) -2%
V O>800mV
-2.5
1000
mA
V O=0V
80
mA
µA
µA
IQ
V IN =5V, IO=0mA
60
Ground Pin Current
IGND
V IN =5V, IO =1mA to 150mA
50
IO=0.1mA, V OUT>2.0V
REG LINE
V IN =V OUT+0.5V to 5.5V
IO=0.1mA, V OUT<=2.0V
V IN =V OUT+1V to 5.5V
V OUT>2.0V
Load Regulation
REGLOAD
IO=0.1 to 150mA
V IN =V OUT+0.5V
V OUT<=2.0V
V IN =V OUT+1V
Over Temperature Shutdown
Over Temperature Hysterisis
V O Temperature Coefficient
Power Supply Rejection
Output Voltage Noise
SHDN Input Threshold
-0.2
0.2
%
-0.4
0.4
-1
1
%
-2
2
137
o
C
OTH
23
o
C
TC
30
ppm/ oC
f=1kHz
70
dB
Co=0.22µF
30
µVrms
OTS
PSRR
eN
RO=100Ω
CO=0.22µF
f=10Hz to 100kHz
IO=10mA
V SHDNH
V SHDN = 0.8 x V IN
V SHDNL
V SHDN = 0.6V
SHDN Input Bias Current
Shutdown Supply Current
ISD
Shutdown Output Voltage
ADJ Refernece Voltage
(AME8834)
ADJ Input Bias Current
(AME8834)
V O,SD
Note1:VIN(min)=VOUT+VDROPOUT
mV
200
Quiescent Current
Line Regulation
%
2.5
500
150
%
0.8xV IN
0
o
0.01
o
V IN = 5V
EN = 0V or 5V
TA= 25 C
TA= 85 C
0.1
V IN =5V
TA=25oC
0.5
o
V O=0V
TA=85 C
Output Loading<= 1200 ohm, V=0V
V REF
Vin
V
0.6
V
µA
1
1
0
1.206
0.4
1.225 1.243
V IN =5.5V
TA= 25oC
0.05
V ADJ =1.3V
TA= 85oC
0.1
0.1
µA
V
V
µA
7
AME, Inc.
AME8833/8834
High PSRR, 150mA CMOS LDO
n Detailed Description
n Shutdown
The AME8833/8834 family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current protection, and thermal shutdown.
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 150mA. During thermal shutdown,
the output voltage remains low. Normal operation is restored when the junction temperature drops below 120oC.
The AME8833/8834 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. The AME8833/8834 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 External Capacitors
The AME8833/8834 is stable with an output capacitor
to ground of 0.22µF 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.
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.
A larger capacitor improves the AC ripple rejection, but
also makes the output come up slowly. This "Soft" turnon is desirable in some applications to limit turn-on surges.
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
n Adjustable Version
AME8834 features a user-adjustable output through an
external feedback resister divider. To set the output of
AME8834 use the following equation:
VOUT=VADJ(1+R1/R2)
VADJ=1.225V, use 1% or better resistors
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8833/8834
Input Current vs. Input Voltage
Input Current vs. Temperature
57.5
Input Current @ no load (uA)
70
Input Current (uA)
60
50
40
30
20
10
0
0.0
0.5
1.0 1.5 2.0 2.5
3.0
3.5 4.0
4.5
5.0
5.5
57.0
56.5
56.0
55.5
55.0
54.5
54.0
-45
6.0
-5
Input Voltage (V)
25
55
85
Temperature (oC)
Dropout Voltage vs. Load
Output Voltage vs. Temperature
300
2.852
85o C
2.850
200
55o C
25o C
150
- 5oC
- 45oC
100
Output Voltage (V)
Dropout Voltage (mV)
250
50
2.848
2.846
2.844
2.842
2.840
0
0
30
60
90
120
2.838
-45
150
-5
55
Temperature
Load Current (mA)
Output Voltage vs. Load Current
85
(oC)
Output Voltage vs. Input Voltage
2.855
3.0
2.5
Output Voltage (V)
2.850
Output Voltage (V)
25
2.845
2.840
2.835
2.0
1.5
1.0
0.5
2.830
0
30
60
90
Load Current (mA)
120
150
0.0
0.0
0.5 1.0
1.5
2.0 2.5
3.0
3.5 4.0
4.5
5.0 5.5
6.0
Input Voltage (V)
9
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8833/8834
Exiting Shutdown Waveform
Entering Shutdown Waveform
Shutdown Voltage
2V / DIV
2V / DIV
Shutdown Voltage
VOUT=2.85V
RLOAD=50Ω
Output Voltage
RLOAD=50Ω
Output Voltage
10 µS / DIV
10 µS / DIV
Output Noise Spectral Density vs. Frequency
Line Transient Response
Output noise (nV/Hz)
1.0E+04
VIN =3.0V , I OUT = 0 to 50mA
1.0E+03
VOUT , 10mV/div
1.0E+02
1.0E+01
0.01
0.1
1
10
100
1000
200uS/div
FREQ (KHz)
Load Transient Response
PSRR vs. Frequency
75
70
65
PSRR (dB)
VIN = 3.5 to 4.0V
VOUT , 1mV/div
60
55
50
45
40
35
30
0.01
1mS/div
10
0.1
1
10
Frequency (KHz)
100
1000
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8833/8834
Dropout Voltage vs. Output Voltage
Region of Stable Cout ESR vs. Load Current
290
1.E+03
1.E+02
250
Cout ESR (ohm)
Dropout Voltage (mV)
270
230
210
190
Stable Region
1.E+00
1.E-01
170
150
2.0
1.E+01
2.5
3.0
3.5
4.0
Output Voltage (V)
4.5
5.0
1.E-02
0
20
40
60
80
100
120
Load Current (mA)
11
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8833/8834
n Package Dimension
SC-70
Top View
Side View
D
0.15(0.006)
e1
A
D
A
E
E1
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
SECTION A-A
£ c
1
(b)
b1
c1 c
.15(.0059)
H
GAGE
PLANE
BASE METAL
c
£
L
12
MILLIMETERS
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
E/2
E1/2
0.15(0.006)
SYMBOLS
e
0.65BSC
0.0255BSC
e1
1.30BSC
0.0512BSC
L
0.26
o
è1
0
è2
4o
0.46
8
o
10o
0.010
0
o
4o
0.018
8o
10 o
NOTE:
1. Controlling Dimension : Millimeter, converted inch dimension
are not necessarily exact.
2. Dimensiioning and tolerancing per ansi Y14.5m-1994.
3. Dimension "d" does not include mold flash,protrusion or gate
burr, mold flash,protrusion or gate burr shall not exceed
0.15mm(0.006") per end. Dimension E1 do not include inter-lead
flash or protrusion, inter-lead flash or protrusion shall not exceed 0.15mm(0.006") per side.
4. The package top be smaller than the package bottom. Dimension D and E1 are determined at outermost extremes of the
plastic body exclusive of mold flash, tie bar burrs, gate burrs
and interlead flash, but including any mismatch between the top
and bottom of the plastic body.
AME, Inc.
High PSRR, 150mA CMOS LDO
AME8833/8834
n Package Dimension
SOT-25-L
Top View
Side View
SYMBOLS
E
£ c
1
MAX
MIN
MAX
A+A1
1.00
1.30
0.0394
0.0512
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
H
L
e
è1
Front View
INCHES
MIN
e
S1
MILLIMETERS
2.60
3.00
0.37BSC
0o
10 o
0.95BSC
0.07480 BSC
0.10236 0.11811
0.0146BSC
0o
10o
0.0374BSC
A
S1
1.90 BSC
b
A1
H
L
D
13
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. , February 2004
Document: 2029-DS8833/8834-C
Corporate Headquarter
U.S.A. (Subsidiary)
AME, Inc.
Analog Microelectronics, Inc.
2F, 189 Kang-Chien Road, Nei-Hu Distric
Taipei 114, Taiwan, R.O.C.
3100 De La Cruz Blvd., Suite 201
Santa Clara, CA. 95054-2046
Tel: 886 2 2627-8687
Fax: 886 2 2659-2989
Tel : (408) 988-2388
Fax: (408) 988-2489
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