MAX8510EXK25 [MAXIM]
Fixed Positive LDO Regulator, 2.5V, 0.2V Dropout, BICMOS, PDSO5, SC-70, 5 PIN;
| 型号： | MAX8510EXK25 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Fixed Positive LDO Regulator, 2.5V, 0.2V Dropout, BICMOS, PDSO5, SC-70, 5 PIN 信息通信管理 光电二极管 输出元件 调节器 |
| 文件： | 总10页 (文件大小：269K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-2732; Rev 2; 8/05
Ultra-Low-Noise, High PSRR,
Low-Dropout,120mA Linear Regulators in SC70
General Description
Features
The MAX8510/MAX8511/MAX8512 ultra-low-noise, low-
dropout (LDO) linear regulators are designed to deliver up
to 120mA continuous output current from a tiny 5-pin
SC70 plastic package. These regulators achieve a low
120mV dropout for 120mA load current. The MAX8510
uses an advanced architecture to achieve ultra-low output
♦ Space-Saving 5-Pin SC70 Package
♦ 11µV
Output Noise at 100Hz to 100kHz
RMS
Bandwidth (MAX8510)
♦ 78dB PSRR at 1kHz (MAX8510)
♦ 120mV Dropout at 120mA Load
voltage noise of 11µV
and PSRR of 54dB at 100kHz.
RMS
♦ Stable with 1µF Ceramic Capacitor for Any Load
♦ Guaranteed 120mA Output
The MAX8511 does not require a bypass capacitor,
hence achieving the smallest PC board area. The
MAX8512’s output voltage can be adjusted with an
external divider.
♦ Only Need Input and Output Capacitors (MAX8511)
♦ Output Voltages: 1.5V, 1.8V, 2.5V, 2.6V, 2.7V, 2.8V,
2.85V, 3V, 3.3V, 4.5V (MAX8510/MAX8511) and
Adjustable (MAX8512)
The MAX8510/MAX8511 are preset to a variety of volt-
ages in the 1.5V to 4.5V range. Designed with a P-
channel MOSFET series pass transistor, the MAX8510/
MAX8511/MAX8512 maintain very low ground current
(40µA).
♦ Low 40µA Ground Current
♦ Excellent Load/Line Transient
♦ Overcurrent and Thermal Protection
The regulators are designed and optimized to work with
low-value, low-cost ceramic capacitors. The MAX8510
requires only 1µF (typ) of output capacitance for stability
with any load. When disabled, current consumption drops
to below 1µA.
Ordering Information
PART*
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
5 SC70-5
5 SC70-5
5 SC70-5
5 SC70-5
5 SC70-5
5 SC70-5
MAX8510EXKxy-T
MAX8510EXKxy+T
MAX8511EXKxy-T
MAX8511EXKxy+T
MAX8512EXK-T
MAX8512EXK+T
Applications
Cellular and Cordless Phones
PDA and Palmtop Computers
Base Stations
*xy is the output voltage code (see Output Voltage Selector
Guide). Other versions between 1.5V and 4.5V are available in
100mV increments. Contact factory for other versions.
+Denotes lead-free package.
Bluetooth Portable Radios and Accessories
Wireless LANs
Digital Cameras
Personal Stereos
Portable and Battery-Powered Equipment
Output Voltage Selector Guide appears at end of data sheet.
Typical Operating Circuits
Pin Configuration
TOP VIEW
INPUT
2V TO 6V
OUTPUT PRESET
1.5V TO 4.5V
IN
OUT
BP
IN
GND
1
2
3
5
4
OUT
C
= 1μF
IN
MAX8510
C
BP
= 10nF
MAX8510
MAX8511
MAX8512
ON
SHDN
OFF
BP (MAX8510)
N.C. (MAX8511)
FB (MAX8512)
C
OUT
= 1μF
GND
SHDN
SC70-5
A "+" SIGN WILL REPLACE THE FIRST PIN INDICATOR ON LEAD-FREE PACKAGES.
Typical Operating Circuits continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Ultra-Low-Noise, High PSRR, Low-Dropout,
120mA Linear Regulators in SC70
ABSOLUTE MAXIMUM RATINGS
IN to GND.................................................................-0.3V to +7V
Output Short-Circuit Duration ............................................Infinite
OUT, SHDN to GND ......................................-0.3V to (IN + 0.3V)
FB, BP, N.C. to GND..................................-0.3V to (OUT + 0.3V)
θ
JA
(5-Pin SC70)...............................................................324°C/W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Continuous Power Dissipation (T = +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C)..............0.247W
A
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V = V
+ 0.5V, T = -40°C to +85°C, unless otherwise noted. C = 1µF, C
= 1µF, C = 10nF. Typical values are at +25°C;
OUT BP
IN
OUT
A
IN
the MAX8512 is tested with 2.45V output, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
2
TYP
MAX UNITS
Input Voltage Range
V
6
V
IN
I
I
I
= 1mA, T = +25°C
-1
+1
+2
+3
OUT
OUT
OUT
A
Output Voltage Accuracy
= 100µA to 80mA, T = +25°C
A
-2
%
= 100µA to 80mA
-3
Maximum Output Current
Current Limit
I
120
130
mA
mA
OUT
I
OUT = 90% of nominal value
200
80
300
170
LIM
V
V
≥ 3V, I
≥ 3V, I
= 80mA
OUT
OUT
OUT
OUT
= 120mA
120
90
2.5V ≤ V
2.5V ≤ V
< 3V, I
< 3V, I
= 80mA
= 120mA
= 80mA
= 120mA
200
250
OUT
OUT
OUT
OUT
OUT
OUT
Dropout Voltage (Note 2)
Ground Current
mV
µA
135
120
180
40
2V ≤ V
2V ≤ V
< 2.5V, I
< 2.5V, I
OUT
OUT
I
= 0.05mA
90
OUT
I
Q
V
V
= V
(nom) - 0.1V, I = 0mA
OUT
220
0.001
0.003
0.003
0.05
78
500
IN
IN
OUT
Line Regulation
Load Regulation
V
V
= (V
+ 0.5V) to 6V, I = 0.1mA
OUT
%/V
LNR
LDR
OUT
I
= 1mA to 80mA
%/mA
OUT
T
T
= +25°C
= +85°C
1
A
Shutdown Supply Current
Ripple Rejection
I
SHDN = 0V
µA
dB
SHDN
A
MAX8510
f = 1kHz, I
= 10mA
OUT
MAX8511/MAX8512
MAX8510
72
75
PSRR
f = 10kHz, I
= 10mA
OUT
MAX8511/MAX8512
MAX8510
65
54
f = 100kHz, I
= 10mA
OUT
MAX8511/ MAX8512
46
2
_______________________________________________________________________________________
Ultra-Low-Noise, High PSRR, Low-Dropout,
120mA Linear Regulators in SC70
ELECTRICAL CHARACTERISTICS (continued)
(V = V
+ 0.5V, T = -40°C to +85°C, unless otherwise noted. C = 1µF, C
= 1µF, C = 10nF. Typical values are at +25°C;
OUT BP
IN
OUT
A
IN
the MAX8512 is tested with 2.45V output, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MAX8510
MIN
TYP
11
MAX UNITS
f = 100Hz to 100kHz,
= 10mA
I
LOAD
MAX8511/MAX8512
MAX8510
230
13
Output Noise Voltage
(RMS)
µV
f = 100Hz to 100kHz,
I
= 80mA
LOAD
MAX8511/MAX8512
230
Shutdown Exit Delay
SHDN Logic Low Level
SHDN Logic High Level
R
= 50Ω (Note3)
300
0.4
µs
V
LOAD
V
V
= 2V to 6V
IN
IN
= 2V to 6V
= 6V, SHDN = 0V or
1.5
V
T
A
T
A
T
A
T
A
= +25°C
= +85°C
= +25°C
= +85°C
V
IN
SHDN Input Bias Current
µA
6V
0.01
0.006
0.01
160
0.1
FB Input Bias Current
(MAX8512)
V
= 6V,V = 1.3V
µA
°C
°C
IN
FB
Thermal Shutdown
Thermal-Shutdown
Hysteresis
10
Note 1: Limits are 100% tested at +25°C. Limits over operating temperature range are guaranteed by design.
Note 2: Dropout is defined as V - V when V is 100mV below the value of V for V = V + 0.5V.
IN
OUT
OUT
OUT
IN
OUT
Note 3: Time needed for V
to reach 90% of final value.
OUT
Typical Operating Characteristics
= 1µF, C = 10nF, T = +25°C, unless otherwise noted.)
OUT BP A
(V = V
IN
+ 0.5V, C = 1µF, C
IN
OUT
MAX8510
OUTPUT VOLTAGE ACCURACY
vs. LOAD CURRENT
MAX8510
OUTPUT VOLTAGE ACCURACY
vs. TEMPERATURE
MAX8510
OUTPUT VOLTAGE vs. INPUT VOLTAGE
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.6
0.4
0.2
0
1.0
0.8
I
= 1mA
OUT
0.6
I
= 0mA
OUT
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
I
= 120mA
OUT
-0.2
-0.4
-0.6
0
1
2
3
4
5
6
0
20
40
60
80
100
120
-40
-15
10
35
60
85
INPUT VOLTAGE (V)
LOAD CURRENT (mA)
TEMPERATURE (°C)
_______________________________________________________________________________________
3
Ultra-Low-Noise, High PSRR, Low-Dropout,
120mA Linear Regulators in SC70
Typical Operating Characteristics (continued)
= 1µF, C = 10nF, T = +25°C, unless otherwise noted.)
OUT BP A
(V = V
IN
+ 0.5V, C = 1µF, C
IN
OUT
MAX8510
MAX8510
DROPOUT VOLTAGE vs. OUTPUT VOLTAGE
MAX8510
DROPOUT VOLTAGE vs. LOAD CURRENT
GROUND PIN CURRENT vs. INPUT VOLTAGE
150
120
90
60
30
0
250
200
150
100
50
350
300
250
200
150
100
50
I
= 80mA
OUT
I
= 120mA
OUT
T
= +85°C
A
T
= +25°C
A
T
= -40°C
A
I
= 0mA
4
OUT
0
0
0
20
40
60
80
100
120
2.0
2.2
2.4
2.6
2.8
3.0
3.2
0
1
2
3
5
LOAD CURRENT (mA)
OUTPUT (V)
INPUT VOLTAGE (V)
MAX8510
MAX8510
MAX8510
PSRR vs. FREQUENCY
GROUND PIN CURRENT vs. LOAD CURRENT
GROUND PIN CURRENT vs. TEMPERATURE
50
45
40
35
30
240
200
160
120
80
90
V
IN
= 5.5V
80
70
60
50
40
30
20
10
V
= 3.8V
IN
40
I
C
= 10mA
= 10nF
LOAD
BP
0
0
-40
-15
10
35
60
85
0
20
40
60
80
100
120
0.01
0.1
1
10
100
1000
TEMPERATURE (°C)
LOAD CURRENT (mA)
FREQUENCY (kHz)
MAX8510
OUTPUT NOISE SPECTRAL DENSITY
vs. FREQUENCY
MAX8511
PSRR vs. FREQUENCY
MAX8510
OUTPUT NOISE
MAX8510 toc11
MAX8510 toc12
90
80
1.E+04
1.E+03
1.E+02
1.E+01
V
= 3.8V
= 10mA
IN
I
LOAD
V
= 11μV
NOISE
RMS
70
60
50
40
30
20
10
0
I
= 10mA
LOAD
20μV/div
400μs/div
0.01
0.1
1
10
100
1000
0.01
0.1
1
10
100
1000
FREQUENCY (kHz)
FREQUENCY (kHz)
4
_______________________________________________________________________________________
Ultra-Low-Noise, High PSRR, Low-Dropout,
120mA Linear Regulators in SC70
Typical Operating Characteristics (continued)
= 1µF, C = 10nF, T = +25°C, unless otherwise noted.)
OUT BP A
(V = V
IN
+ 0.5V, C = 1µF, C
IN
OUT
MAX8510
OUTPUT NOISE vs. BP CAPACITANCE
MAX8510
LOAD TRANSIENT RESPONSE
MAX8510
LOAD TRANSIENT RESPONSE NEAR DROPOUT
MAX8510 toc14
MAX8510 toc15
25
20
V
I
= 3.5V
V
I
= 3.1V
IN
IN
= 0 TO 50mA
= 0 TO 50mA
LOAD
LOAD
15
10
5
V
V
OUT
OUT
10mV/div
10mV/div
0
1ms/div
1
10
100
1ms/div
BP CAPACITANCE (nF)
MAX8510
LINE TRANSIENT RESPONSE
MAX8510
ENTERING SHUTDOWN DELAY
MAX8510
EXITING SHUTDOWN WAVEFORM
MAX8510 toc16
MAX8510 toc18
MAX8510 toc17
V
R
= 2.85V
C
BP
= 0.01μF
OUT
V
= 3.5V TO 4V
IN
SHUTDOWN VOLTAGE
= 47Ω
LOAD
SHUTDOWN
VOLTAGE
OUTPUT VOLTAGE
2V/div
OUTPUT VOLTAGE
2V/div
V
OUT
2mV/div
200μs/div
20μs/div
40μs/div
MAX8510
REGION OF STABLE C
MAX8510
SHUTDOWN EXIT DELAY
ESR
OUT
vs. LOAD CURRENT
MAX8510 toc19
100
10
V
C
= 3V
= 100nF
OUT
BP
V
OUT
1V/div
1
SHUTDOWN
VOLTAGE
0.1
0.01
STABLE REGION
20μs/div
0
20
40
60
80
100
120
LOAD CURRENT (mA)
_______________________________________________________________________________________
5
Ultra-Low-Noise, High PSRR, Low-Dropout,
120mA Linear Regulators in SC70
Pin Description
PIN
NAME
FUNCTION
MAX8510
MAX8511
MAX8512
1
2
3
1
2
3
1
2
3
IN
Unregulated Input Supply
Ground
GND
SHDN
Shutdown. Pull low to disable the regulator.
Noise Bypass for Low-Noise Operation. Connect a 10nF capacitor from
BP to OUT. It is short to OUT in shutdown mode.
4
—
—
BP
—
—
4
—
4
N.C.
FB
Not Internally Connected
—
Adjustable Output Feedback Point
Regulated Output Voltage. Bypass with a capacitor to GND. See the
Capacitor Selection and Regulator Stability section for more details.
5
5
5
OUT
waste considerable current in dropout when the pass
Detailed Description
transistor saturates. They also use high base-drive cur-
rent under heavy loads. The MAX8510/MAX8511/
MAX8512 do not suffer from these problems and con-
sume only 40µA of quiescent current in light load and
220µA in dropout (see the Typical Operating
Characteristics).
The MAX8510/MAX8511/MAX8512 are ultra-low-noise,
low-dropout, low-quiescent current linear regulators
designed for space-restricted applications. The parts
are available with preset output voltages ranging from
1.5V to 4.5V in 100mV increments. These devices can
supply loads up to 120mA. As shown in the Functional
Diagram, the MAX8510/MAX8511 consist of an innova-
tive bandgap core and noise bypass circuit, error
amplifier, P-channel pass transistor, and internal feed-
back voltage-divider. The MAX8512 allows for
adjustable output with an external feedback network.
Output Voltage Selection
The MAX8510/MAX8511 are supplied with factory-set
output voltages from 1.5V to 4.5V, in 100mV increments
(see Ordering Information). The MAX8512 features a
user-adjustable output through an external feedback
network (see the Typical Operating Circuits).
The 1.225V bandgap reference is connected to the
error amplifier’s inverting input. The error amplifier com-
pares this reference with the feedback voltage and
amplifies the difference. If the feedback voltage is
lower than the reference voltage, the pass-transistor
gate is pulled low. This allows more current to pass to
the output and increases the output voltage. If the feed-
back voltage is too high, the pass transistor gate is
pulled high, allowing less current to pass to the output.
The output voltage is fed back through an internal resis-
tor voltage-divider connected to the OUT pin.
To set the output of the MAX8512, use the following
equation:
V
V
⎛
⎞
⎠
OUT
R1 = R2 X
-1
⎟
⎜
⎝
REF
where R2 is chosen to be less than 240kΩ and V
1.225V. Use 1% or better resistors.
=
REF
Shutdown
The MAX8510/MAX8511/MAX8512 feature a low-power
shutdown mode that reduces quiescent current less
than 1µA. Driving SHDN low disables the voltage refer-
ence, error amplifier, gate-drive circuitry, and pass
transistor (see the Functional Diagram), and the device
output enters a high-impedance state. Connect SHDN
to IN for normal operation.
An external bypass capacitor connected to BP
(MAX8510) reduces noise at the output. Additional
blocks include a current limiter, thermal sensor, and
shutdown logic.
Internal P-Channel Pass Transistor
The MAX8510/MAX8511/MAX8512 feature a 1Ω (typ) P-
channel MOSFET pass transistor. This provides several
advantages over similar designs using a PNP pass
transistor, including longer battery life. The P-channel
MOSFET requires no base drive, which considerably
reduces quiescent current. PNP-based regulators
Current Limit
The MAX8510/MAX8511/MAX8512 include a current
limiter, which monitors and controls the pass transis-
tor’s gate voltage, limiting the output current to 200mA.
6
_______________________________________________________________________________________
Ultra-Low-Noise, High PSRR, Low-Dropout,
120mA Linear Regulators in SC70
For design purposes, consider the current limit to be
Applications Information
130mA (min) to 300mA (max). The output can be shorted
Capacitor Selection
and Regulator Stability
to ground for an indefinite amount of time without damag-
ing the part.
Use a 1µF capacitor on the MAX8510/MAX8511/
MAX8512 input and a 1µF capacitor on the output.
Larger input capacitor values and lower ESRs provide
better noise rejection and line-transient response.
Reduce output noise and improve load-transient
response, stability, and power-supply rejection by
using large output capacitors. Note that some ceramic
dielectrics exhibit large capacitance and ESR variation
with temperature. With dielectrics such as Z5U and
Y5V, it may be necessary to use a 2.2µF or larger output
capacitor to ensure stability at temperatures below
-10°C. With X7R or X5R dielectrics, 1µF is sufficient at all
operating temperatures. A graph of the region of stable
Thermal-Overload Protection
Thermal-overload protection limits total power dissipation
in the MAX8510/MAX8511/MAX8512. When the junction
temperature exceeds T = +160°C, the thermal sensor
J
signals the shutdown logic, turning off the pass transistor
and allowing the IC to cool down. The thermal sensor
turns the pass transistor on again after the IC’s junction
temperature drops by 10°C, resulting in a pulsed output
during continuous thermal-overload conditions.
Thermal-overload protection is designed to protect the
MAX8510/MAX8511/MAX8512 in the event of a fault
condition. For continual operation, do not exceed the
absolute maximum junction temperature rating of T =
J
+150°C.
C
ESR vs. load current is shown in the Typical
OUT
Operating Characteristics.
Use a 0.01µF bypass capacitor at BP (MAX8510) for
low-output voltage noise. The leakage current going
into the BP pin should be less than 10nA. Increasing
the capacitance slightly decreases the output noise.
Values above 0.1µF and below 0.001µF are not recom-
mended.
Operating Region and Power Dissipation
The MAX8510/MAX8511/MAX8512 maximum power
dissipation depends on the thermal resistance of the
case and circuit board, the temperature difference
between the die junction and ambient, and the rate of
airflow. The power dissipation across the device is:
Noise, PSRR, and Transient Response
The MAX8510/MAX8511/MAX8512 are designed to
deliver ultra-low noise and high PSRR, as well as low
dropout and low quiescent currents in battery-powered
systems. The MAX8510 power-supply rejection is 78dB
at 1kHz and 54dB at 100kHz. The MAX8511/MAX8512
PSRR is 72dB at 1kHz and 46dB at 100kHz (see the
Power-Supply Rejection Ratio vs. Frequency graph in
the Typical Operating Characteristics).
P = I
(V - V
)
OUT
OUT IN
The maximum power dissipation is:
= (T - T ) / (θ + θ )
CA
P
MAX
J
A
JC
where T - T is the temperature difference between
J
A
the MAX8510/MAX8511/MAX8512 die junction and the
surrounding air, θ is the thermal resistance of the
JC
package, and θ
is the thermal resistance through the
CA
PC board, copper traces, and other materials to the
surrounding air.
When operating from sources other than batteries,
improved supply-noise rejection and transient response
can be achieved by increasing the values of the input
and output bypass capacitors, and through passive fil-
tering techniques. The Typical Operating Characteristics
show the MAX8510/MAX8511/MAX8512 line- and load-
transient responses.
The GND pin of the MAX8510/MAX8511/MAX8512 per-
forms the dual function of providing an electrical con-
nection to ground and channeling heat away. Connect
the GND pin to ground using a large pad or ground
plane.
Noise Reduction
For the MAX8510, an external 0.01µF bypass capacitor
between BP and OUT with innovative noise bypass
scheme reduces output noises dramatically, exhibiting
of output voltage noise with C
= 1µF. Startup time is minimized by a power-
on circuit that precharges the bypass capacitor.
Dropout Voltage
A regulator’s minimum dropout voltage determines the
lowest usable supply voltage. In battery-powered sys-
tems, this determines the useful end-of-life battery volt-
age. Because the MAX8510/MAX8511/MAX8512 use a
P-channel MOSFET pass transistor, their dropout voltage
is a function of drain-to-source on-resistance (RDS(ON))
multiplied by the load current (see the Typical Operating
Characteristics).
11µV
and C
= 0.01µF
BP
RMS
OUT
_______________________________________________________________________________________
7
Ultra-Low-Noise, High PSRR, Low-Dropout,
120mA Linear Regulators in SC70
Functional Diagram
IN
SHDN
SHUTDOWN AND
POWER-ON CONTROL
ERROR
AMP
MOS DRIVER
P
WITH I
MAX8510
MAX8511
MAX8512
LIMIT
OUT
**
THERMAL
SENSOR
1.225V REFERENCE
AND NOISE BYPASS
FB***
**
GND
*MAX8510 ONLY
**MAX8510/MAX8511 ONLY
***MAX8512 ONLY
BP*
8
_______________________________________________________________________________________
Ultra-Low-Noise, High PSRR, Low-Dropout,
120mA Linear Regulators in SC70
Typical Operating
Output Voltage Selector Guide
Circuits (continued)
PART
V
(V)
TOP MARK
AEX
AEA
AEB
AEC
AED
ADS
ADT
AEE
AGC
ADU
AEF
OUT
1.6
1.8
2.5
2.7
2.8
MAX8510EXK16-T
MAX8510EXK18-T
MAX8510EXK25-T
MAX8510EXK27-T
MAX8510EXK28-T
MAX8510EXK29-T
MAX8510EXK30-T
MAX8510EXK33-T
MAX8510EXK45-T
MAX8511EXK15-T
MAX8511EXK18-T
MAX8511EXK25-T
MAX8511EXK26-T
MAX8511EXK28-T
MAX8511EXK29-T
MAX8511EXK89-T
MAX8511EXK31-T
MAX8511EXK33-T
MAX8511EXK45-T
MAX8512EXK-T
INPUT
2V TO 6V
OUTPUT PRESET
1.5V TO 4.5V
IN
OUT
C
IN
= 1μF
MAX8511
ON
SHDN
2.85
3
OFF
C
= 1μF
OUT
3.3
4.5
1.5
1.8
2.5
2.6
2.8
2.85
2.9
3.1
3.3
4.5
GND
ADV
AEG
AFA
AFQ
AEH
ARS
AEI
INPUT
2V TO 6V
OUTPUT ADJUSTABLE
1.5V TO 4.5V
IN
OUT
FB
C
= 1μF
R1
IN
MAX8512
ON
SHDN
C
OUT
= 1μF
OFF
R2
AEJ
GND
Adjustable
ADW
(Note: Standard output voltage options, shown in bold, are
available. Contact the factory for other output voltages between
1.5V and 4.5V. Minimum order quantity is 15,000 units)
Chip Information
TRANSISTOR COUNT: 284
PROCESS: BiCMOS
_______________________________________________________________________________________
9
Ultra-Low-Noise, High PSRR, Low-Dropout,
120mA Linear Regulators in SC70
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
PACKAGE OUTLINE, 5L SC70
1
21-0076
C
1
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2005 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products, Inc.
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