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MAX8512ETA+T

P1-P3P4-P6P7-P9P10-P10
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 11µV
RMS
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
o Space-Saving SC70 and TDFN (2mm x 2mm) Packages
o 11µV
RMS
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
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
C
BP
= 10nF
C
OUT
= 1μF
C
IN
= 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
(V
IN
= V
OUT
+ 0.5V, T
A
= -40°C to +85°C, unless otherwise noted. C
IN
= 1µF, C
OUT
= 1µF, C
BP
= 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 (T
A
= +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 V
IN
26V
I
OUT
= 1mA, T
A
= +25°C -1 +1
I
OUT
= 100µA to 80mA, T
A
= +25°C -2 +2Output Voltage Accuracy
I
OUT
= 100µA to 80mA -3 +3
%
Maximum Output Current I
OUT
120 mA
Current Limit I
LIM
V
OUT
= 90% of nominal value 130 200 300 mA
V
OUT
≥ 3V, I
OUT
= 80mA 80 170
V
OUT
≥ 3V, I
OUT
= 120mA 120
2.5V ≤ V
OUT
< 3V, I
OUT
= 80mA 90 200
2.5V ≤ V
OUT
< 3V, I
OUT
= 120mA 135
2V ≤ V
OUT
< 2.5V, I
OUT
= 80mA 120 250
Dropout Voltage (Note 3)
2V ≤ V
OUT
< 2.5V, I
OUT
= 120mA 180
mV
I
OUT
= 0.05mA 40 90
Ground Current I
Q
V
IN
= V
OUT
(nom) - 0.1V, I
OUT
= 0mA 220 500
µA
Line Regulation V
LNR
V
IN
= (V
OUT
+ 0.5V) to 6V, I
OUT
= 0.1mA 0.001 %/V
Load Regulation V
LDR
I
OUT
= 1mA to 80mA 0.003 %/mA
T
A
= +25°C 0.003 1
Shutdown Supply Current I
SHDN
V
SHDN
= 0V
T
A
= +85°C 0.05
µA
MAX8510 78
f = 1kHz, I
OUT
= 10mA
MAX8511/MAX8512 72
MAX8510 75
f = 10kHz, I
OUT
= 10mA
MAX8511/MAX8512 65
MAX8510 54
Ripple Rejection PSRR
f = 100kHz, I
OUT
= 10mA
MAX8511/ MAX8512 46
dB
PACKAGE THERMAL CHARACTERISTICS (Note 1)
SC70
Junction-to-Ambient Thermal Resistance (θ
JA
)...............324°C/W
Junction-to-Case Thermal Resistance (θ
JC
)....................115°C/W
TDFN
Junction-to-Ambient Thermal Resistance (θ
JA
).................83.9°C/W
Junction-to-Case Thermal Resistance (θ
JC
).........................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)
(V
IN
= V
OUT
+ 0.5V, T
A
= -40°C to +85°C, unless otherwise noted. C
IN
= 1µF, C
OUT
= 1µF, C
BP
= 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 V
IN
- V
OUT
when V
OUT
is 100mV below the value of V
OUT
for V
IN
= V
OUT
+ 0.5V.
Note 4: Time needed for V
OUT
to reach 90% of final value.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX8510 11
f = 100Hz to 100kHz,
I
LOAD
= 10mA
MAX8511/MAX8512 230
MAX8510 13
Output Noise Voltage
(RMS)
f = 100Hz to 100kHz,
I
LOAD
= 80mA
MAX8511/MAX8512 230
µV
Shutdown Exit Delay R
LOAD
= 50Ω (Note 4) 300 µs
SHDN Logic Low Level V
IN
= 2V to 6V 0.4 V
SHDN Logic High Level V
IN
= 2V to 6V 1.5 V
T
A
= +25°C
SHDN Input Bias Current
V
IN
= 6V, V
SHDN
= 0V or
6V
T
A
= +85°C 0.01
µA
T
A
= +25°C 0.006 0.1
FB Input Bias Current
(MAX8512)
V
IN
= 6V,V
FB
= 1.3V
T
A
= +85°C 0.01
µA
Thermal Shutdown 160 °C
Thermal-Shutdown
Hysteresis
10 °C
Typical Operating Characteristics
(V
IN
= V
OUT
+ 0.5V, C
IN
= 1µF, C
OUT
= 1µF, C
BP
= 10nF, T
A
= +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
I
OUT
= 120mA
I
OUT
= 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
I
OUT
= 1mA
P1-P3P4-P6P7-P9P10-P10

MAX8512ETA+T

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Buy MAX8512ETA+T
Manufacturer:
Maxim Integrated
Description:
LDO Voltage Regulators 120mA Linear Regulato
Lifecycle:
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