MAXIM MAX15029ATB+

19-4586; Rev 1; 2/11
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
Features
The MAX15029/MAX15030 low-dropout linear regulators operate from input voltages as low as 1.425V and
deliver up to 500mA of continuous output current with a
typical dropout voltage of only 40mV. The output voltage is adjustable from 0.5V to VIN and is ±2% accurate
over load and line variations, from -40°C to +125°C.
The MAX15030 features a BIAS input of 3V to 5.5V from
an always-on power supply. The BIAS input current is
reduced down to less than 2µA during the shutdown.
These regulators use small, 1µF ceramic input capacitors and 2.2µF ceramic output capacitors to deliver
500mA output current. High bandwidth provides excellent transient response and limits the output voltage deviation to 10mV for a 100mA to 500mA load step, with only
a 2.2µF ceramic output capacitor, and the voltage deviations can be reduced further by increasing the output
capacitor.
♦ 1.425V to 3.6V Input Voltage Range
These devices offer a logic-controlled shutdown input
to reduce input current (IIN) consumption down to less
than 5.5µA in standby mode. Other features include a
soft-start to reduce inrush current, short-circuit protection, and thermal-overload protection.
♦ Thermally Enhanced 3mm x 3mm TDFN Package
The MAX15030 features a BIAS input allowing a secondary supply to keep the LDO’s internal circuitry alive
if the voltage on IN goes to 0. Both devices are fully
specified from -40°C to +125°C and are available in a
10-pin thermally enhanced TDFN package (3mm x
3mm) that includes an exposed pad for optimal power
dissipation. For a 1A version of these LDOs, refer to the
MAX15027/MAX15028 data sheet.
♦ Output Voltage Programmable from 0.5V to VIN
♦ Guaranteed Maximum 150mV Dropout at 500mA
Output Current
♦ 2% Output Accuracy Over Load, Line, and
Temperature
♦ Stable with Ceramic Capacitors
♦ Fast Transient Response
♦ 60µA Operating Bias Supply Current
♦ 1.2µA Shutdown Bias Supply Current
♦ Short-Circuit and Thermal Protection
♦ -40°C to +125°C Operating Temperature Range
♦ Soft-Start Limits Inrush Current
Ordering Information
PART
PINPACKAGE
TEMP RANGE
TOP
MARK
MAX15029ATB+
-40°C to +125°C 10 TDFN-EP*
+AUF
MAX15029ATB/V+
-40°C to +125°C 10 TDFN-EP*
+AXK
MAX15030ATB+
-40°C to +125°C 10 TDFN-EP*
+AUG
/V denotes an automotive qualified part.
+Denotes a lead(Pb)-free/RoHS-compliant package.
For tape-and-reel orders, add a “T” after the “+.”
*EP = Exposed pad.
Applications
Pin Configurations
Automotive (Dead-Man LDO)
Servers
TOP VIEW
Storage
Networking
IN
1
IN
2
IN
3
I.C.
4
+
10
OUT
9
OUT
8
GND
7
FB
6
SS
Base Stations
Optical Modules
ATE
EN
Typical Operating Circuits appear at end of data sheet.
5
MAX15029
EP
TDFN
(3mm x 3mm)
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
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.
1
MAX15029/MAX15030
General Description
MAX15029/MAX15030
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
ABSOLUTE MAXIMUM RATINGS
IN, FB, SS, I.C. to GND..........................................-0.3V to +4.0V
BIAS to GND.............................................................-0.3V to +6V
EN to GND ................-0.3V to the lower of (VBIAS + 0.3V) or +6V
OUT to GND ................................................-0.3V to (VIN + 0.3V)
Output Short-Circuit Duration.....................................Continuous
Continuous Power Dissipation (TA = +70°C)
TDFN (derate 24.4mW/°C above +70°C)....................1951mW
Operating Junction Temperature Range ...........-40°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PACKAGE THERMAL CHARACTERISTICS (Note 1)
TDFN
Junction-to-Ambient Thermal Resistance (θJA) ............41°C/W
Junction-to-Case Thermal Resistance (θJC) ...................9°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.
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
(Circuit of Figure 1; VIN = 1.8V, VOUT = 1.2V, EN = IN for MAX15029, EN = BIAS for MAX15030, IOUT = 100mA, TA = TJ = -40°C to
+125°C. Typical values are at TA = +25°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
IN
MAX15029
Input Voltage Range
Undervoltage Lockout
Undervoltage Lockout Hysteresis
VIN
VUVLO
MAX15030
VIN rising
1.425
VBIAS = 3V to 5.5V
1.425
3.600
BIAS = IN
3.000
3.600
MAX15029
1.275
1.325
1.375
MAX15030
1.04
1.09
1.14
VUVLO_HYST I OUT = 2mA
Quiescent GND Current
I GND
Input Supply Current in Shutdown
I IN_SD
3.600
50
V
V
mV
VIN = 1.425V to 3.6V, VOUT = 1.2V,
I OUT = 1mA, VBIAS = 3.3V
160
275
410
VIN = 3.6V, VOUT = 3.3V, I OUT = 100mA
180
325
560
VIN = 3.3V, VOUT = 3.3V, I OUT = 500mA
170
315
470
0.1
5.5
5.5
V
2.5
2.7
V
VEN = 0V (TA = -40°C to +85°C)
μA
μA
BIAS (MAX15030)
Input Voltage Range
Undervoltage Lockout
VBIAS
Undervoltage Lockout Hysteresis
Quiescent Input Supply Current
Input Supply Current in Shutdown
2
3
VBIAS_UVLO VBIAS rising
2.3
IOUT = 2mA
IBIAS
IBIAS_SD
110
VEN = VBIAS
EN = GND
20
mV
60
120
VIN = 0V, VOUT = 0V,
VBIAS = 3.3V
1.2
2
VIN = 3.3V, VOUT = 0V,
VBIAS = 3.3V
1.2
2
VIN = 3.3V, VOUT = 0V,
VBIAS = 5V
1.5
3
_______________________________________________________________________________________
μA
μA
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
(Circuit of Figure 1; VIN = 1.8V, VOUT = 1.2V, EN = IN for MAX15029, EN = BIAS for MAX15030, IOUT = 100mA, TA = TJ = -40°C to
+125°C. Typical values are at TA = +25°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUT
Output Voltage Range
VOUT
0.5
Load Regulation
I OUT = 1mA to 500mA
Line Regulation
3.3
V
0.01
mV/mA
VIN = 1.425V to 3.6V, VOUT = 1.2V,
I OUT = 1mA
4
mV
40
150
mV
0.7
0.85
1.0
A
0.489
0.499
0.509
V
0.1
0.2
μA
Dropout Voltage (VIN - VOUT)
(Note 3)
VDO
I OUT = 500mA, V OUT = 1.2V, VIN = 1.5V
Output Current Limit
ILIM
VFB = 300mV
Threshold Accuracy
VFB
VOUT = 1.125V to 3.3V, VIN = (VOUT +
0.3V) to 3.6V, I OUT = 1mA to 500mA
Input Current
IFB
VFB = 0.488V
FB
EN/SOFT-START
Enable Input Threshold
(MAX15030)
VIH
Enable Input Threshold
(MAX15029)
VIH
Soft-Start Charging Current
ISS
5
μA
Soft-Start Reference Voltage
VSS
0.499
V
165
°C
15
°C
VIL
VIL
VBIAS = 5V
VIN = 1.8V
1.05
0.4
1.05
0.4
V
V
THERMAL SHUTDOWN
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
TJ rising
Note 2: All devices are production tested at TA = +25°C. Limits over the operating temperature range are guaranteed by design
and characterization.
_______________________________________________________________________________________
3
MAX15029/MAX15030
ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics
(Circuit of Figure 1, VIN = 1.8V, VOUT = 1.5V, IOUT = 500mA, TA = +25°C, unless otherwise noted.)
1.0
0.8
0.6
1.49
1.48
1.47
0.4
1.46
IOUT = 0
VBIAS = 3.3V
0.2
1.0
1.5
2.0
2.5
3.0
3.5
0.4
VBIAS = 3.3V
IOUT = 0
200
400
600
0
800
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT CURRENT (mA)
INPUT VOLTAGE (V)
BIAS CURRENT
vs. BIAS VOLTAGE
BIAS CURRENT
vs. OUTPUT CURRENT
GROUND CURRENT
vs. OUTPUT CURRENT
60
MAX15029 toc04
60
40
30
20
58
57
56
55
54
53
VIN = 1.8V
VOUT = 1.5V
IOUT = 0
VBIAS = 3.3V
1.2
4
5
1.0
0.8
0.6
0.4
0.2
VBIAS = 3.3V
51
0
50
3
6
0
BIAS VOLTAGE (V)
200
400
600
100
0
800
200
300
400
OUTPUT CURRENT (mA)
OUTPUT CURRENT (mA)
DROPOUT VOLTAGE
vs. OUTPUT CURRENT
FEEDBACK VOLTAGE
vs. TEMPERATURE
80
70
60
50
40
30
499.5
499.0
FEEDBACK VOLTAGE (mV)
MAX15029 toc07
90
IOUT = 0
498.5
498.0
497.5
20
VOUT = 1.5V
VBIAS = 3.3V
10
0
200
400
600
OUTPUT CURRENT (mA)
4
497.0
IOUT = 500mA
496.5
0
4.0
52
0
2
3.5
1.4
MAX15029 toc08
10
VBIAS = 5.5V
59
BIAS CURRENT (µA)
50
DROPOUT VOLTAGE (mV)
0.6
INPUT VOLTAGE (V)
70
1
0.8
0
0
4.0
GROUND CURRENT (mA)
0.5
MAX15029 toc05
0
1.0
0.2
1.45
0
MAX15029 toc03
1.2
MAX15029 toc06
1.50
OUTPUT VOLTAGE (V)
1.2
1.4
INPUT CURRENT (mA)
1.4
VBIAS = 3.3V
MAX15029 toc02
1.51
MAX15029 toc01
1.6
OUTPUT VOLTAGE (V)
INPUT CURRENT
vs. INPUT VOLTAGE
OUTPUT VOLTAGE
vs. OUTPUT CURRENT
OUTPUT VOLTAGE
vs. INPUT VOLTAGE
BIAS CURRENT (µA)
MAX15029/MAX15030
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
800
-50
-25
0
25
50
75
100 125 150
TEMPERATURE (°C)
_______________________________________________________________________________________
500
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
OUTPUT VOLTAGE
vs. OUTPUT CURRENT
OUTPUT VOLTAGE
vs. TEMPERATURE
MAX15029 toc10
1.4
OUTPUT VOLTAGE (V)
1.52
OUTPUT VOLTAGE (V)
1.6
MAX15029 toc09
1.53
1.51
IOUT = 0
1.50
1.49
VIN = 1.8V
1.2
1.0
VIN = 1.2V
0.8
0.6
0.4
1.48
IOUT = 500mA
0
1.47
-50
-25
0
25
50
75
0
100 125 150
200
400
600
800
OUTPUT CURRENT (mA)
TEMPERATURE (°C)
CURRENT LIMIT
vs. TEMPERATURE
LOAD-TRANSIENT RESPONSE
MAX15029 toc12
MAX15029 toc11
950
930
910
CURRENT LIMIT (mA)
TA = +125°C
VOUT = 1.5V
0.2
IOUT
890
20mA/div
870
0
850
830
10mV/div
AC-COUPLED
VOUT
810
790
770
IOUT = 100mA TO 500mA TO 100mA
750
-50
-25
0
25
50
75
100 125 150
20μs/div
TEMPERATURE (°C)
POWER-UP RESPONSE
POWER-DOWN RESPONSE
MAX15029 toc13
MAX15029 toc14
1V/div
VOUT
1V/div
0
VOUT
0
1V/div
2V/div
VIN
VIN
0
IOUT = 500mA
0
IOUT = 500mA
2ms/div
20ms/div
_______________________________________________________________________________________
5
MAX15029/MAX15030
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN = 1.8V, VOUT = 1.5V, IOUT = 500mA, TA = +25°C, unless otherwise noted.)
MAX15029/MAX15030
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN = 1.8V, VOUT = 1.5V, IOUT = 500mA, TA = +25°C, unless otherwise noted.)
TURN-ON WITH ENABLE RESPONSE
TURN-OFF WITH ENABLE RESPONSE
MAX15029 toc15
MAX15029 toc16
1V/div
1V/div
VOUT
0
VOUT
0
2V/div
VEN
2V/div
0
0
VEN
IOUT = 500mA
IOUT = 500mA
2ms/div
4μs/div
Pin Description
PIN
6
NAME
FUNCTION
MAX15029
MAX15030
1, 2, 3
1, 2
IN
Regulator Input. 1.425V to 3.6V voltage range. Bypass to GND with at least 1µF
of ceramic capacitance. IN is high impedance when the LDO is shut down.
—
3
BIAS
Internal Circuitry Supply Input. BIAS supplies the power for the internal circuitry.
3V to 5.5V voltage range.
4
4
I.C.
Internally Connected. Connect I.C. directly to GND.
5
5
EN
LDO Enable. Drive EN high to enable the LDO or connect to IN (BIAS for
MAX15030) for always-on operation. Drive EN low to disable the LDO and place
the IC in low-power shutdown mode.
6
6
SS
Soft-Start Input. For typical operation, connect a 0.1µF capacitor from SS to
GND. The soft-start timing is dependent on the value of this capacitor. See the
Soft-Start section.
7
7
FB
Feedback Input. Connect FB to the center of a resistor-divider connected
between OUT and GND to set the output voltage. See the Programming the
Output Voltage section.
8
8
GND
Ground
9, 10
9, 10
OUT
Regulator Output. Bypass OUT to GND with at least 2.2µF of ceramic
capacitance for 500mA load operation.
—
—
EP
Exposed Pad. Connect EP to GND and a large copper ground plane to facilitate
package power dissipation.
_______________________________________________________________________________________
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
IN
MAX15029
ONLY
MAX15030
ONLY
REF
BIAS
MAX15029
MAX15030
INTERNAL
SUPPLY
GENERATOR
IN
UVLO
BIAS
UVLO
REF
CONTROL
LOGIC
ERROR
AMPLIFIER
WITH
SOFT-START
EN
MOS DRIVER
WITH ILIMIT
P
OUT
OVERTEMPERATURE
PROTECTION
SS
FB
GND
Detailed Description
The MAX15029/MAX15030 low-dropout linear regulators operate from input voltages as low as 1.425V and
deliver up to 500mA of continuous output current with a
maximum dropout voltage of only 150mV.
The MAX15030 operates with an input voltage as low
as 1.425V if the bias voltage (VBIAS) of 3V to 5.5V is
available. The power is applied at IN while the control
is provided through BIAS input. The current drawn by
BIAS is negligible when the LDO goes into the shutdown. This feature is especially useful in automotive
applications where the BIAS input is derived from an
always-on LDO that expects to provide minimal power
during the key-off condition.
The pMOS output stage can be driven from input voltages down to +1.425V without sacrificing stability or
transient performance. The output voltage of all the
regulators is adjustable from 0.5V to VIN and is ±2%
accurate over load and line variations, from -40°C to
+125°C. Since these regulators have a pMOS output
device, supply current is not a significant function of
load or input headroom.
_______________________________________________________________________________________
7
MAX15029/MAX15030
Functional Diagram
MAX15029/MAX15030
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
Internal p-Channel Pass Transistor
Shutdown Mode
The MAX15029/MAX15030 feature a 75mΩ (typ)
p-channel MOSFET pass transistor. Unlike similar
designs using pnp pass transistors, p-channel
MOSFETs require no base drive, reducing quiescent
current. pnp-based regulators also waste considerable
current in dropout when the pass transistor saturates
and uses high base-drive currents under large loads.
The MAX15029/MAX15030 do not suffer from these
problems and consume only 315µA (typ) of quiescent
current under heavy loads, as well as in dropout.
The MAX15029/MAX15030 include an enable input. To
shut down the IC, drive EN low. In shutdown mode, the
current drawn by BIAS is less than 2µA. This feature is
extremely useful in an automotive application where the
BIAS input is derived from an always-on LDO expecting
to provide minimal dark current. For normal operation,
drive EN high or connect EN to IN for continuous on
operation. During shutdown, an internal 10kΩ resistor is
connected between OUT and GND.
Short-Circuit/
Thermal Fault Protection
The MAX15029/MAX15030 are fully protected from a
short circuit at the output through current-limiting and
thermal-overload circuitry. In the fault condition when
the output is shorted to ground, the output current is
limited to a maximum of 1A. Under these conditions,
the device quickly heats up. When the junction temperature reaches +165°C (typ), the thermal-overload circuitry turns off the output, allowing the part to cool
down. When the junction temperature cools to +150°C
(typ), the output turns back on and reestablishes regulation. Current limiting and thermal protection continue
until the fault is removed. For continuous operation, do
not exceed the absolute maximum junction-temperature rating of TJ = +150°C.
Applications Information
Programming the Output Voltage
The MAX15029/MAX15030 feature an adjustable output
voltage from 0.5V to VIN using two external resistors
connected as a voltage-divider to FB as shown in
Figure 1. The output voltage is set by the following
equation:
R1 ⎞
⎛
VOUT = VFB ⎜ 1 +
⎝
R2 ⎟⎠
where typically VFB = 0.5V. Choose R2 to be 10kΩ. Or,
to optimize load-transient response for no load to full
load transients, use the resistor-divider as a minimum
load and choose R2 to be 500Ω. To simplify resistor
selection:
Soft-Start
The MAX15029/MAX15030 feature a soft-start function
that slowly ramps up the output voltage of the regulator
based on the value of the capacitor (CSS) connected
from SS to GND. Upon power-up, CSS is charged with
a 5µA (typ) current source through SS. The voltage at
SS is compared to the internal 0.5V reference (VREF).
The feedback voltage for regulation (VREG) is the lower
of VSS or VREF. As VSS rises, the regulation voltage
(VREG) rises at the same rate. Once VSS reaches and
rises above VREF, the regulation voltage then tracks the
reference voltage since it is the lower of VSS and VREF.
The value of CSS determines the length of the soft-start
time, tSS. Use the following formula to determine CSS.
CSS = 10-5 x tSS
where CSS is in farads and tSS is in seconds.
ALWAYS-ON
INPUT
3V TO 5.5V
INPUT
1.425V TO 3.6V
⎛V
R1 = R2 ⎜ OUT
⎝ VFB
− 1⎟
⎞
BIAS
OUT
⎠
OUTPUT
IN
R1
1μF
MAX15030
ENABLE
FB
I.C.
EN
SHUTDOWN
GND
SS
0.1uF
Figure 1. MAX15030 Typical Application Circuit
8
_______________________________________________________________________________________
2.2μF
R2
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
Capacitors are required at the MAX15029/MAX15030’s
inputs and outputs for stable operation over the full
temperature range and with load currents up to
500mA. Connect a 1µF capacitor between IN and
ground and a 2.2µF capacitor with low equivalent
series resistance (ESR) between OUT and ground for
500mA output current.
The input capacitor (CIN) lowers the source impedance
of the input supply. If input supply source impedance is
high, place a larger input capacitor close to IN to prevent VIN sagging due to load transients. Smaller output
capacitors can be used for output currents less than
500mA. Calculate the minimum COUT as follows:
⎛ 1μ F ⎞
C OUT = IOUT(MAX) × ⎜
⎝ 0. 25A ⎟⎠
Noise, PSRR, and Transient Response
The MAX15029/MAX15030 are designed to operate
with low-dropout voltages and low quiescent currents
while still maintaining good noise performance, transient response, and AC rejection (see the Typical
Operating Characteristics). When operating from noisy
sources, 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 MAX15029/MAX15030
load-transient response graphs (see the Typical
Operating Characteristics) show two components of the
output response: a DC shift from the output impedance
due to the load current change, and the transient
response. A typical transient overshoot for a step
change in the load current from 100mA to 500mA is
10mV. Use ceramic output capacitors greater than
2.2µF (up to 100µF) to attenuate the overshoot.
Layout Guidelines
Operating Region and
Power Dissipation
The maximum power dissipation depends on the thermal resistance of the IC package and circuit board, the
temperature difference between the die junction and
ambient air, and the rate of airflow. The power dissipated in the device is P DISS = I OUT (V IN - V OUT). The
package features an exposed thermal pad on its
underside. This pad lowers the thermal resistance of
the package by providing a direct heat conduction
path from the die to the PCB. Additionally, the ground
pins (GND) perform the dual function of providing an
electrical connection to system ground and channeling
heat away. Connect the exposed backside pad and
GND to the system ground using a large pad or ground
plane and multiple vias to the ground plane layer.
The TDFN package has an exposed thermal pad on its
underside. This pad provides a low thermal resistance
path for heat transfer into the PCB. This low thermally
resistive path carries a majority of the heat away from
the IC. The PCB is effectively a heatsink for the IC. The
exposed pad should be connected to a large ground
plane for proper thermal and electrical performance.
The minimum size of the ground plane is dependent
upon many system variables. To create an efficient
path, the exposed pad should be soldered to a thermal
landing, which is connected to the ground plane by
thermal vias. The thermal landing should be at least as
large as the exposed pad.
_______________________________________________________________________________________
9
MAX15029/MAX15030
Capacitor Selection and
Regulator Stability
MAX15029/MAX15030
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
Typical Operating Circuits
OUTPUT
0.5V TO VIN
OUT
INPUT
1.425V TO 3.6V
ALWAYS-ON INPUT
3V TO 5.5V
BIAS
INPUT
1.425V TO 3.6V
IN
OUT
OUTPUT
0.5V TO VIN
IN
1μF
1μF
MAX15029
FB
MAX15030
2.2μF
EN
FB
2.2μF
EN
GND
SS
SS
Pin Configurations (continued)
GND
Chip Information
PROCESS: BiCMOS
TOP VIEW
Package Information
IN
1
IN
2
BIAS
3
I.C.
4
EN
5
+
MAX15030
EP
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.
10
OUT
9
OUT
8
GND
7
FB
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
6
SS
10 TDFN-EP
T1033+1
21-0137
90-0003
TDFN
(3mm x 3mm)
10
______________________________________________________________________________________
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
REVISION
NUMBER
REVISION
DATE
0
4/09
Initial release
2/11
Added the MAX15029 automotive qualified part to the Ordering Information table;
added soldering information to the Absolute Maximum Ratings section; added the
Package Thermal Characteristics section; added the land pattern no. to the Package
Information table
1
DESCRIPTION
PAGES
CHANGED
—
1, 2, 10
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implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
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© 2011 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
MAX15029/MAX15030
Revision History