General Description
The MAX8510/MAX8511/MAX8512 ultra-low-noise, low-
dropout (LDO) linear regulators are designed to deliver
up to 120mA continuous output current. These regula-
tors achieve a low 120mV dropout for 120mA load cur-
rent. 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 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).
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.
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
Features
oSpace-Saving SC70 and TDFN (2mm x 2mm) Packages
o11µVRMS Output Noise at 100Hz to 100kHz
Bandwidth (MAX8510)
o78dB PSRR at 1kHz (MAX8510)
o120mV Dropout at 120mA Load
oStable with 1µF Ceramic Capacitor for Any Load
oGuaranteed 120mA Output
oOnly Need Input and Output Capacitors (MAX8511)
oOutput 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)
oLow 40µA Ground Current
oExcellent Load/Line Transient
oOvercurrent and Thermal Protection
MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
________________________________________________________________
Maxim Integrated Products
1
BP (MAX8510)
N.C. (MAX8511)
FB (MAX8512)
GND
BP (MAX8510)
N.C. (MAX8511)
FB (MAX8512)
SHDN
1
2
3
5
4
OUT
IN
MAX8510
MAX8511
MAX8512
MAX8510
MAX8511
MAX8512
SC70
*CONNECT EP TO GND.
1
27
3
4
+
+
N.C.
GND
N.C.
N.C.
OUT
EP*
TDFN 2mm × 2mm
8
6
5
TOP VIEW
SHDN
Pin Configuration
Ordering Information
MAX8510
OUTPUT PRESET
1.5V TO 4.5V
IN
INPUT
2V TO 6V
OFF SHDN CBP = 10nF
COUT = 1μF
CIN = 1μF
OUT
ON BP
GND
Typical Operating Circuits
19-2732; Rev 4; 8/11
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.
*
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.
PART* TEMP RANGE PIN-PACKAGE
MAX8510EXKxy+T -40°C to +85°C 5 SC70-5
Typical Operating Circuits continued at end of data sheet.
Output Voltage Selector Guide appears at end of data sheet.
Ordering Information continued at end of data sheet.
MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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)
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.
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
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Voltage Range VIN 26V
IOUT = 1mA, TA = +25°C -1 +1
IOUT = 100µA to 80mA, TA = +25°C -2 +2Output Voltage Accuracy
IOUT = 100µA to 80mA -3 +3
%
Maximum Output Current IOUT 120 mA
Current Limit ILIM VOUT = 90% of nominal value 130 200 300 mA
VOUT ≥ 3V, IOUT = 80mA 80 170
VOUT ≥ 3V, IOUT = 120mA 120
2.5V ≤ VOUT < 3V, IOUT = 80mA 90 200
2.5V ≤ VOUT < 3V, IOUT = 120mA 135
2V ≤ VOUT < 2.5V, IOUT = 80mA 120 250
Dropout Voltage (Note 3)
2V ≤ VOUT < 2.5V, IOUT = 120mA 180
mV
IOUT = 0.05mA 40 90
Ground Current IQVIN = VOUT (nom) - 0.1V, IOUT = 0mA 220 500 µA
Line Regulation VLNR VIN = (VOUT + 0.5V) to 6V, IOUT = 0.1mA 0.001 %/V
Load Regulation VLDR IOUT = 1mA to 80mA 0.003 %/mA
TA = +25°C 0.003 1
Shutdown Supply Current ISHDN VSHDN = 0V TA = +85°C 0.05 µA
MAX8510 78
f = 1kHz, IOUT = 10mA MAX8511/MAX8512 72
MAX8510 75
f = 10kHz, IOUT = 10mA MAX8511/MAX8512 65
MAX8510 54
Ripple Rejection PSRR
f = 100kHz, IOUT = 10mA MAX8511/ MAX8512 46
dB
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 four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(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)
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.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX8510 11
f = 100Hz to 100kHz,
ILOAD = 10mA MAX8511/MAX8512 230
MAX8510 13
Output Noise Voltage
(RMS) f = 100Hz to 100kHz,
ILOAD = 80mA MAX8511/MAX8512 230
µV
Shutdown Exit Delay RLOAD = 50Ω (Note 4) 300 µs
SHDN Logic Low Level VIN = 2V to 6V 0.4 V
SHDN Logic High Level VIN = 2V to 6V 1.5 V
TA = +25°C
SHDN Input Bias Current VIN = 6V, VSHDN = 0V or
6V TA = +85°C 0.01 µA
TA = +25°C 0.006 0.1
FB Input Bias Current
(MAX8512) VIN = 6V,VFB = 1.3V TA = +85°C 0.01 µA
Thermal Shutdown 160 °C
Thermal-Shutdown
Hysteresis 10 °C
Typical Operating Characteristics
(VIN = VOUT + 0.5V, CIN = 1µF, COUT = 1µF, CBP = 10nF, TA= +25°C, unless otherwise noted.)
MAX8510
OUTPUT VOLTAGE vs. INPUT VOLTAGE
MAX8510 toc01
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
54321
0.5
1.0
1.5
2.0
2.5
3.0
0.0
06
IOUT = 120mA
IOUT = 0mA
MAX8510
OUTPUT VOLTAGE ACCURACY
vs. LOAD CURRENT
MAX8510 toc02
LOAD CURRENT (mA)
% DEVIATION (%)
10080604020
-0.4
-0.2
0
0.2
0.4
0.6
-0.6
0 120
MAX8510
OUTPUT VOLTAGE ACCURACY
vs. TEMPERATURE
MAX8510 toc03
TEMPERATURE (°C)
% DEVIATION (%)
603510-15
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
-40 85
IOUT = 1mA
MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
4 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VIN = VOUT + 0.5V, CIN = 1µF, COUT = 1µF, CBP = 10nF, TA= +25°C, unless otherwise noted.)
MAX8510
DROPOUT VOLTAGE vs. LOAD CURRENT
MAX8510 toc04
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV)
10080604020
30
60
90
120
150
0
0 120
TA = +85°C
TA = +25°C
TA = -40°C
MAX8510
DROPOUT VOLTAGE vs. OUTPUT VOLTAGE
MAX8510 toc05
OUTPUT (V)
DROPOUT VOLTAGE (mV)
3.02.82.62.42.2
50
100
150
200
250
0
2.0 3.2
IOUT = 80mA
MAX8510
GROUND PIN CURRENT vs. INPUT VOLTAGE
MAX8510 toc06
INPUT VOLTAGE (V)
GROUND PIN CURRENT (μA)
4321
150
200
50
100
250
300
350
0
05
IOUT = 120mA
IOUT = 0mA
MAX8510
GROUND PIN CURRENT vs. LOAD CURRENT
MAX8510 toc 07
LOAD CURRENT (mA)
GROUND PIN CURRENT (μA)
10080604020
40
80
120
160
200
240
0
0 120
VIN = 3.8V
VIN = 5.5V
MAX8510
GROUND PIN CURRENT vs. TEMPERATURE
MAX8510 toc08
TEMPERATURE (°C)
GROUND PIN CURRENT (μA)
603510-15
35
40
45
50
30
-40 85
MAX8510
PSRR vs. FREQUENCY
MAX8510 toc09
FREQUENCY (kHz)
PSRR (dB)
1 10 1000.1
40
50
60
10
20
30
70
80
90
0
0.01 1000
ILOAD = 10mA
CBP = 10nF
MAX8511
PSRR vs. FREQUENCY
MAX8510 toc10
FREQUENCY (kHz)
PSRR (dB)
0.1 1 10 100
40
50
60
10
20
30
70
80
90
0
0.01 1000
ILOAD = 10mA
MAX8510
OUTPUT NOISE
MAX8510 toc11
400μs/div
VIN = 3.8V
ILOAD = 10mA
VNOISE = 11μVRMS
20μV/div
MAX8510
OUTPUT NOISE SPECTRAL DENSITY
vs. FREQUENCY
MAX8510 toc12
FREQUENCY (kHz)
OUTPUT NOISE DENSITY (nV/√Hz)
0.1 1 10 100
1.E+03
1.E+02
1.E+04
1.E+01
0.01 1000
MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
_______________________________________________________________________________________
5
Typical Operating Characteristics (continued)
(VIN = VOUT + 0.5V, CIN = 1µF, COUT = 1µF, CBP = 10nF, TA= +25°C, unless otherwise noted.)
MAX8510
OUTPUT NOISE vs. BP CAPACITANCE
MAX8510 toc13
BP CAPACITANCE (nF)
OUTPUT NOISE (μV)
10
5
10
15
20
25
0
1 100
MAX8510
LOAD TRANSIENT RESPONSE
MAX8510 toc14
1ms/div
VIN = 3.5V
ILOAD = 0 TO 50mA
VOUT
10mV/div
MAX8510
LOAD TRANSIENT RESPONSE NEAR DROPOUT
MAX8510 toc15
1ms/div
VIN = 3.1V
ILOAD = 0 TO 50mA
VOUT
10mV/div
MAX8510
LINE TRANSIENT RESPONSE
MAX8510 toc16
200μs/div
VIN = 3.5V TO 4V
VOUT
2mV/div
MAX8510
EXITING SHUTDOWN WAVEFORM
MAX8510 toc17
20μs/div
VOUT = 2.85V
RLOAD = 47Ω
OUTPUT VOLTAGE
2V/div
SHUTDOWN VOLTAGE
MAX8510
ENTERING SHUTDOWN DELAY
MAX8510 toc18
40μs/div
CBP = 0.01μF
OUTPUT VOLTAGE
2V/div
SHUTDOWN
VOLTAGE
MAX8510
REGION OF STABLE COUT ESR
vs. LOAD CURRENT
MAX8510 toc20
LOAD CURRENT (mA)
COUT ESR (Ω)
80604020
0.1
1
10
100
0.01
0120100
STABLE REGION
MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
6 _______________________________________________________________________________________
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 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.
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.
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 seve-
ral 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 transis-
tor 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:
where R2 is chosen to be less than 240kΩand VREF =
1.225V. Use 1% or better resistors.
RRX
V
V
OUT
REF
12 1=⎛
⎝
⎜⎞
⎠
⎟
-
Pin Description
PIN
MAX8510 MAX8511 MAX8512
SC70
TDFN
-EP
SC70 TDFN
-EP SC70 TDFN
-EP
NAME
FUNCTION
151515INUnregulated Input Supply
232323
GND
Ground
343434
SHDN
Shutdown. Pull low to disable the regulator.
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
575757
OUT
Reg ul ated Outp ut V ol tag e. Byp ass w i th a cap aci tor to GN D . S ee the
C ap aci tor S el ecti on and Reg ul ator S tab i l i ty secti on for m or e d etai l s.
—
1, 6, 8
41, 2, 6, —
1, 6, 8 N.C.
No connection. Not internally connected.
——————EP
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.
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 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.
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.
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 dam-
aging 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 con-
dition. 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- TAis 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 per-
forms the dual function of providing an electrical connec-
tion 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
11µVRMS of output voltage noise with CBP = 0.01µF
and COUT = 1µF. Startup time is minimized by a power-
on circuit that precharges the bypass capacitor.
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
COUT 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 fil-
tering techniques. The
Typical Operating Characteristics
show the MAX8510/MAX8511/MAX8512 line- and load-
transient responses.
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
_______________________________________________________________________________________ 7
MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
8 _______________________________________________________________________________________
P
OUT
FB***
*MAX8510 ONLY
**MAX8510/MAX8511 ONLY
***MAX8512 ONLY
**
**
BP*
MAX8510
MAX8511
MAX8512
ERROR
AMP
IN
SHDN
GND
SHUTDOWN AND
POWER-ON CONTROL
THERMAL
SENSOR
MOS DRIVER
WITH ILIMIT
1.225V REFERENCE
AND NOISE BYPASS
Functional Diagram
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 volt-
age is a function of drain-to-source on-resistance
(RDS(ON)) multiplied by the load current (see the
Typical Operating Characteristics
).
MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
_______________________________________________________________________________________ 9
Chip Information
PROCESS: BiCMOS
MAX8511
OUTPUT PRESET
1.5V TO 4.5V
IN
INPUT
2V TO 6V
OFF SHDN COUT = 1μF
CIN = 1μF
OUT
ON
GND
Typical Operating
Circuits (continued)
Output Voltage Selector Guide
PART VOUT (V) TOP MARK
MAX8510EXK16+T 1.6 AEX
MAX8510EXK18+T 1.8 ATH
MAX8510ETA25+T 2.5 AAO
MAX8510EXK27+T 2.7 ATD
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
MAX8512
OUTPUT ADJUSTABLE
1.5V TO 4.5V
IN
INPUT
2V TO 6V
OFF SHDN
R1
R2
COUT = 1μF
CIN = 1μF
OUT
ON FB
GND
(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.)
Ordering Information (continued)
*
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.
PART* TEMP RANGE PIN-PACKAGE
MAX8510EXKxy+T -40°C to +85°C 5 SC70
MAX8510ETAxy+T -40°C to +85°C 8 TDFN-EP**
2mm x 2mm
MAX8511EXKxy+T -40°C to +85°C 5 SC70
MAX8511ETAxy+T -40°C to +85°C 8 TDFN-EP**
2mm x 2mm
MAX8512EXK+T -40°C to +85°C 5 SC70
MAX8512ETA+T -40°C to +85°C 8 TDFN-EP**
2mm x 2mm
Package Information
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
MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
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.
10
____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2011 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
Revision History
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
4 8/11 Corrected errors and added lead-free packages 1, 2, 3, 6, 9