Maxim MAX8510EXK18-T Ultra-low-noise, high psrr, low-dropout, 120ma linear regulator Datasheet

19-2732; Rev 4; 8/11
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
Features
o Space-Saving SC70 and TDFN (2mm x 2mm) Packages
o 11µVRMS Output Noise at 100Hz to 100kHz
Bandwidth (MAX8510)
o 78dB PSRR at 1kHz (MAX8510)
o 120mV Dropout at 120mA Load
o Stable with 1µF Ceramic Capacitor for Any Load
o Guaranteed 120mA Output
o Only Need Input and Output Capacitors (MAX8511)
o 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)
o Low 40µA Ground Current
o Excellent Load/Line Transient
o Overcurrent and Thermal Protection
Applications
Cellular and Cordless Phones
PDA and Palmtop Computers
Base Stations
Bluetooth Portable Radios and Accessories
Wireless LANs
Digital Cameras
Personal Stereos
Portable and Battery-Powered Equipment
Ordering Information
PART*
TEMP RANGE
PIN-PACKAGE
MAX8510EXKxy+T
-40°C to +85°C
5 SC70-5
*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 a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Ordering Information continued at end of data sheet.
Typical Operating Circuits
INPUT
2V TO 6V
CIN = 1μF
ON
OFF
IN
OUT
MAX8510
BP
SHDN
GND
OUTPUT PRESET
1.5V TO 4.5V
CBP = 10nF
COUT = 1μF
Output Voltage Selector Guide appears at end of data sheet.
Typical Operating Circuits continued at end of data sheet.
Pin Configuration
TOP VIEW
+
GND 2
MAX8510
MAX8511
MAX8512
BP (MAX8510)
4 N.C. (MAX8511)
FB (MAX8512)
SHDN 3
SC70
N.C.
BP (MAX8510)
N.C. (MAX8511)
FB (MAX8512)
GND
SHDN
1
2
3
4
+
5 OUT
IN 1
MAX8510
MAX8511
MAX8512
EP*
TDFN 2mm × 2mm
8
N.C.
7
OUT
6
N.C.
5
*CONNECT EP TO GND.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX8510/MAX8511/MAX8512
General Description
The MAX8510/MAX8511/MAX8512 ultra-low-noise, lowdropout (LDO) linear regulators are designed to deliver
up to 120mA continuous output current. These regulators achieve a low 120mV dropout for 120mA load current. The MAX8510 uses an advanced architecture to
achieve ultra-low output voltage noise of 11µVRMS and
PSRR of 54dB at 100kHz.
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.
The MAX8510/MAX8511 are preset to a variety of voltages 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).
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.
Package options include a 5-pin SC70 and a tiny 2mm x
2mm x 0.8mm TDFN package.
MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
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)
Continuous Power Dissipation (TA = +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C) ..............0.247W
8-Pin TDFN (derate 11.9mW/°C above = 70°C) ..........0.953W
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
Soldering Temperature (reflow) .......................................+260°C
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.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
SC70
Junction-to-Ambient Thermal Resistance (θJA)...............324°C/W
Junction-to-Case Thermal Resistance (θJC)....................115°C/W
TDFN
Junction-to-Ambient Thermal Resistance (θJA).................83.9°C/W
Junction-to-Case Thermal Resistance (θJC).........................37°C/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a fourlayer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(VIN = VOUT + 0.5V, TA = -40°C to +85°C, unless otherwise noted. CIN = 1µF, COUT = 1µF, CBP = 10nF. Typical values are at +25°C;
the MAX8512 is tested with 2.45V output, unless otherwise noted.) (Note 2)
PARAMETER
Input Voltage Range
SYMBOL
CONDITIONS
VIN
Output Voltage Accuracy
Maximum Output Current
IOUT
Current Limit
ILIM
Dropout Voltage (Note 3)
MIN
TYP
2
-1
+1
-2
+2
IOUT = 100µA to 80mA
-3
+3
120
VOUT = 90% of nominal value
130
300
VOUT ≥ 3V, IOUT = 80mA
80
170
VOUT ≥ 3V, IOUT = 120mA
120
2.5V ≤ VOUT < 3V, IOUT = 80mA
90
2.5V ≤ VOUT < 3V, IOUT = 120mA
135
2V ≤ VOUT < 2.5V, IOUT = 80mA
120
2V ≤ VOUT < 2.5V, IOUT = 120mA
180
40
90
220
500
VIN = (VOUT + 0.5V) to 6V, IOUT = 0.1mA
0.001
Load Regulation
VLDR
IOUT = 1mA to 80mA
0.003
f = 1kHz, IOUT = 10mA
f = 10kHz, IOUT = 10mA
f = 100kHz, IOUT = 10mA
2
TA = +25°C
0.003
TA = +85°C
0.05
MAX8510
mA
mV
250
VIN = VOUT (nom) - 0.1V, IOUT = 0mA
VLNR
PSRR
200
IOUT = 0.05mA
VSHDN = 0V
%
mA
200
Line Regulation
Ripple Rejection
V
IOUT = 100µA to 80mA, TA = +25°C
IQ
ISHDN
UNITS
6
IOUT = 1mA, TA = +25°C
Ground Current
Shutdown Supply Current
MAX
µA
%/V
%/mA
1
µA
78
MAX8511/MAX8512
72
MAX8510
75
MAX8511/MAX8512
65
MAX8510
54
MAX8511/ MAX8512
46
_______________________________________________________________________________________
dB
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
(VIN = VOUT + 0.5V, TA = -40°C to +85°C, unless otherwise noted. CIN = 1µF, COUT = 1µF, CBP = 10nF. Typical values are at +25°C;
the MAX8512 is tested with 2.45V output, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
Output Noise Voltage
(RMS)
Shutdown Exit Delay
MIN
TYP
f = 100Hz to 100kHz,
ILOAD = 10mA
MAX8510
11
MAX8511/MAX8512
230
f = 100Hz to 100kHz,
ILOAD = 80mA
MAX8510
13
MAX8511/MAX8512
230
RLOAD = 50Ω (Note 4)
SHDN Logic Low Level
VIN = 2V to 6V
SHDN Logic High Level
VIN = 2V to 6V
MAX
UNITS
µV
300
µs
0.4
V
1.5
SHDN Input Bias Current
VIN = 6V, VSHDN = 0V or
6V
FB Input Bias Current
(MAX8512)
VIN = 6V,VFB = 1.3V
V
TA = +25°C
TA = +85°C
0.01
TA = +25°C
0.006
TA = +85°C
0.01
µA
0.1
µA
Thermal Shutdown
160
°C
Thermal-Shutdown
Hysteresis
10
°C
Note 2: Limits are 100% tested at +25°C. Limits over operating temperature range are guaranteed by design.
Note 3: Dropout is defined as VIN - VOUT when VOUT is 100mV below the value of VOUT for VIN = VOUT + 0.5V.
Note 4: Time needed for VOUT to reach 90% of final value.
Typical Operating Characteristics
(VIN = VOUT + 0.5V, CIN = 1µF, COUT = 1µF, CBP = 10nF, TA = +25°C, unless otherwise noted.)
MAX8510
OUTPUT VOLTAGE ACCURACY
vs. LOAD CURRENT
1.0
MAX8510 toc02
2.5
0.4
0.8
1.5
IOUT = 120mA
1.0
% DEVIATION (%)
2.0
0.2
0
-0.2
0.5
-0.4
0.0
-0.6
IOUT = 1mA
0.6
IOUT = 0mA
% DEVIATION (%)
OUTPUT VOLTAGE (V)
0.6
MAX8510 toc01
3.0
MAX8510
OUTPUT VOLTAGE ACCURACY
vs. TEMPERATURE
MAX8510 toc03
MAX8510
OUTPUT VOLTAGE vs. INPUT VOLTAGE
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
0
1
2
3
4
INPUT VOLTAGE (V)
5
6
-1.0
0
20
40
60
80
LOAD CURRENT (mA)
100
120
-40
-15
10
35
60
85
TEMPERATURE (°C)
_______________________________________________________________________________________
3
MAX8510/MAX8511/MAX8512
ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics (continued)
(VIN = VOUT + 0.5V, CIN = 1µF, COUT = 1µF, CBP = 10nF, TA = +25°C, unless otherwise noted.)
90
60
TA = -40°C
30
350
200
IOUT = 120mA
300
GROUND PIN CURRENT (μA)
TA = +25°C
MAX8510
GROUND PIN CURRENT vs. INPUT VOLTAGE
MAX8510 toc05
120
IOUT = 80mA
DROPOUT VOLTAGE (mV)
TA = +85°C
DROPOUT VOLTAGE (mV)
250
MAX8510 toc04
150
MAX8510
DROPOUT VOLTAGE vs. OUTPUT VOLTAGE
150
100
50
MAX8510 toc06
MAX8510
DROPOUT VOLTAGE vs. LOAD CURRENT
250
200
150
100
IOUT = 0mA
50
0
0
0
20
40
60
80
100
0
2.0
2.2
2.4
2.6
2.8
3.2
3.0
0
4
5
100
1000
3
MAX8510
GROUND PIN CURRENT vs. LOAD CURRENT
MAX8510
GROUND PIN CURRENT vs. TEMPERATURE
MAX8510
PSRR vs. FREQUENCY
VIN = 3.8V
120
80
MAX8510 toc09
MAX8510 toc08
90
80
70
45
60
PSRR (dB)
160
50
GROUND PIN CURRENT (μA)
VIN = 5.5V
40
50
40
30
35
20
40
ILOAD = 10mA
CBP = 10nF
10
30
0
0
20
40
60
80
100
120
0
-40
-15
10
35
60
85
0.01
1
10
TEMPERATURE (°C)
FREQUENCY (kHz)
MAX8511
PSRR vs. FREQUENCY
MAX8510
OUTPUT NOISE
MAX8510
OUTPUT NOISE SPECTRAL DENSITY
vs. FREQUENCY
MAX8510 toc11
70
VIN = 3.8V
ILOAD = 10mA
VNOISE = 11μVRMS
60
50
40
30
20
ILOAD = 10mA
1.E+03
1.E+02
20μV/div
0
0.1
MAX8510 toc12
1.E+04
OUTPUT NOISE DENSITY (nV/√Hz)
MAX8510 toc10
80
0.01
0.1
LOAD CURRENT (mA)
90
1
10
FREQUENCY (kHz)
4
2
INPUT VOLTAGE (V)
200
10
1
OUTPUT (V)
MAX8510 toc 07
GROUND PIN CURRENT (μA)
120
LOAD CURRENT (mA)
240
PSRR (dB)
MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
100
1000
400μs/div
1.E+01
0.01
0.1
1
10
FREQUENCY (kHz)
_______________________________________________________________________________________
100
1000
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
(VIN = VOUT + 0.5V, CIN = 1µF, COUT = 1µF, CBP = 10nF, TA = +25°C, unless otherwise noted.)
MAX8510
LOAD TRANSIENT RESPONSE
MAX8510
OUTPUT NOISE vs. BP CAPACITANCE
MAX8510 toc13
25
20
MAX8510 toc15
VIN = 3.5V
ILOAD = 0 TO 50mA
VIN = 3.1V
ILOAD = 0 TO 50mA
15
10
VOUT
10mV/div
VOUT
10mV/div
5
0
10
1ms/div
100
1ms/div
BP CAPACITANCE (nF)
MAX8510
LINE TRANSIENT RESPONSE
MAX8510
ENTERING SHUTDOWN DELAY
MAX8510
EXITING SHUTDOWN WAVEFORM
MAX8510 toc16
MAX8510 toc18
MAX8510 toc17
VIN = 3.5V TO 4V
SHUTDOWN VOLTAGE
VOUT = 2.85V
RLOAD = 47Ω
CBP = 0.01μF
SHUTDOWN
VOLTAGE
OUTPUT VOLTAGE
2V/div
OUTPUT VOLTAGE
2V/div
VOUT
2mV/div
200μs/div
20μs/div
40μs/div
MAX8510
REGION OF STABLE COUT ESR
vs. LOAD CURRENT
MAX8510
SHUTDOWN EXIT DELAY
MAX8510 toc19
100
VOUT = 3V
CBP = 100nF
VOUT
1V/div
SHUTDOWN
VOLTAGE
MAX8510 toc20
1
10
COUT ESR (Ω)
OUTPUT NOISE (μV)
MAX8510
LOAD TRANSIENT RESPONSE NEAR DROPOUT
MAX8510 toc14
1
0.1
STABLE REGION
20μs/div
0.01
0
20
40
60
80
100
120
LOAD CURRENT (mA)
_______________________________________________________________________________________
5
MAX8510/MAX8511/MAX8512
Typical Operating Characteristics (continued)
MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
Pin Description
PIN
MAX8510
SC70
TDFN
-EP
1
2
MAX8511
MAX8512
NAME
SC70
SC70
TDFN
-EP
5
1
5
1
5
IN
3
2
3
2
3
GND
3
4
3
4
3
4
SHDN
4
2
—
—
—
—
BP
Noise Bypass for Low-Noise Operation. Connect a 10nF capacitor
from BP to OUT. BP is shorted to OUT in shutdown mode.
—
—
—
—
4
2
FB
Adjustable Output Feedback Point
5
7
5
7
5
7
OUT
Regulated Output Voltage. Bypass with a capacitor to GND. See the
Capacitor Selection and Regulator Stability section for more details.
—
1, 6, 8
4
1, 2, 6,
—
1, 6, 8
N.C.
No connection. Not internally connected.
—
—
—
—
—
—
EP
Detailed Description
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 innovative bandgap core and noise bypass circuit, error
amplifier, P-channel pass transistor, and internal feedback voltage-divider. The MAX8512 allows for
adjustable output with an external feedback network.
The 1.225V bandgap reference is connected to the
error amplifier’s inverting input. The error amplifier compares 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 feedback 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 resistor voltage-divider connected to the OUT pin.
An external bypass capacitor connected to BP
(MAX8510) reduces noise at the output. Additional
blocks include a current limiter, thermal sensor, and
shutdown logic.
6
FUNCTION
TDFN
-EP
Unregulated Input Supply
Ground
Shutdown. Pull low to disable the regulator.
Exposed Pad (TDFN Only). Internally connected to GND. Connect
to a large ground plane to maximize thermal performance. Not
intended as an electrical connection point.
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 waste
considerable current in dropout when the pass transistor saturates. They also use high base-drive current
under heavy loads. The MAX8510/MAX8511/MAX8512
do not suffer from these problems and consume only
40µA of quiescent current in light load and 220µA in
dropout (see the Typical Operating Characteristics).
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).
To set the output of the MAX8512, use the following
equation:
⎛ VOUT ⎞
R1 = R2 X ⎜
- 1⎟
⎝ VREF ⎠
where R2 is chosen to be less than 240kΩ and VREF =
1.225V. Use 1% or better resistors.
_______________________________________________________________________________________
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
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
11µVRMS of output voltage noise with CBP = 0.01µF
and COUT = 1µF. Startup time is minimized by a poweron circuit that precharges the bypass capacitor.
Current Limit
The MAX8510/MAX8511/MAX8512 include a current
limiter, which monitors and controls the pass transistor’s gate voltage, limiting the output current to 200mA.
For design purposes, consider the current limit to be
130mA (min) to 300mA (max). The output can be shorted
to ground for an indefinite amount of time without damaging the part.
Thermal-Overload Protection
Thermal-overload protection limits total power dissipation
in the MAX8510/MAX8511/MAX8512. When the junction
temperature exceeds TJ = +160°C, the thermal sensor
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 TJ = +150°C.
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:
P = IOUT (VIN - VOUT)
The maximum power dissipation is:
PMAX = (TJ - TA) / (θJC + θCA)
where TJ - TA is the temperature difference between
the MAX8510/MAX8511/MAX8512 die junction and the
surrounding air, θJC is the thermal resistance of the
package, and θCA is the thermal resistance through the
PC board, copper traces, and other materials to the
surrounding air.
The GND pin of the MAX8510/MAX8511/MAX8512 performs the dual function of providing an electrical connection to ground and channeling heat away. Connect the
GND pin to ground using a large pad or ground plane.
Applications Information
Capacitor Selection
and Regulator Stability
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
C OUT ESR vs. load current is shown in the Typical
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 recommended.
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).
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 filtering techniques. The Typical Operating Characteristics
show the MAX8510/MAX8511/MAX8512 line- and loadtransient responses.
_______________________________________________________________________________________
7
MAX8510/MAX8511/MAX8512
Shutdown
The MAX8510/MAX8511/MAX8512 feature a low-power
shutdown mode that reduces quiescent current less
than 1µA. Driving SHDN low disables the voltage reference, 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.
MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
Dropout Voltage
A regulator’s minimum dropout voltage determines the
lowest usable supply voltage. In battery-powered systems, this determines the useful end-of-life battery voltage. 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).
Functional Diagram
IN
SHDN
SHUTDOWN AND
POWER-ON CONTROL
MAX8510
MAX8511
MAX8512
ERROR
AMP
MOS DRIVER
WITH ILIMIT
P
OUT
**
THERMAL
SENSOR
1.225V REFERENCE
AND NOISE BYPASS
FB***
**
GND
*MAX8510 ONLY
**MAX8510/MAX8511 ONLY
***MAX8512 ONLY
8
BP*
_______________________________________________________________________________________
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
Output Voltage Selector Guide
PART*
TEMP RANGE
PIN-PACKAGE
PART
VOUT (V)
TOP MARK
MAX8510EXKxy+T
-40°C to +85°C
5 SC70
MAX8510EXK16+T
1.6
AEX
-40°C to +85°C
8 TDFN-EP**
2mm x 2mm
MAX8510EXK18+T
1.8
ATH
MAX8510ETA25+T
2.5
AAO
-40°C to +85°C
5 SC70
MAX8510EXK27+T
2.7
ATD
-40°C to +85°C
8 TDFN-EP**
2mm x 2mm
MAX8510ETAxy+T
MAX8511EXKxy+T
MAX8511ETAxy+T
MAX8512EXK+T
MAX8512ETA+T
-40°C to +85°C
5 SC70
-40°C to +85°C
8 TDFN-EP**
2mm x 2mm
*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.
**EP = Exposed pad.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Typical Operating
Circuits (continued)
INPUT
2V TO 6V
IN
CIN = 1μF
ON
OFF
OUT
OUTPUT PRESET
1.5V TO 4.5V
MAX8511
SHDN
MAX8510ETA28+T
2.8
AAR
MAX8510EXK29+T
2.85
ADS
MAX8510ETA30+T
3
AAS
MAX8510ETA33+T
3.3
AAT
MAX8510ETA45+T
4.5
AAU
MAX8511EXK15+T
1.5
ADU
MAX8511ETA18+T
1.8
AAV
MAX8511ETA25+T
2.5
AAP
MAX8511ETA26+T
2.6
AAW
MAX8511EXK28+T
2.8
AFA
MAX8511ETA29+T
2.85
AAX
MAX8511EXK89+T
2.9
AEH
MAX8511EXK31+T
3.1
ARS
MAX8511ETA33+T
3.3
AAY
MAX8511EXK45+T
4.5
AEJ
MAX8512ETA+T
Adjustable
AAQ
(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.)
COUT = 1μF
GND
Chip Information
PROCESS: BiCMOS
Package Information
INPUT
2V TO 6V
CIN = 1μF
ON
OFF
IN
OUT
OUTPUT ADJUSTABLE
1.5V TO 4.5V
R1
MAX8512
FB
SHDN
GND
COUT = 1μF
R2
For the latest package outline information and land patterns
(footprints), go to www.maxim-ic.com/packages. Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
8 TDFN
T822+1
21-0168
90-0064
5 SC70
X5+1
21-0076
90-0188
_______________________________________________________________________________________
9
MAX8510/MAX8511/MAX8512
Ordering Information (continued)
MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
Revision History
REVISION
NUMBER
REVISION
DATE
4
8/11
DESCRIPTION
Corrected errors and added lead-free packages
PAGES
CHANGED
1, 2, 3, 6, 9
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. The parametric values (min and max limits) shown in
the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
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Maxim is a registered trademark of Maxim Integrated Products, Inc.