General Description
The MAX15029/MAX15030 low-dropout linear regula-
tors 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 volt-
age 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 capaci-
tors and 2.2µF ceramic output capacitors to deliver
500mA output current. High bandwidth provides excel-
lent transient response and limits the output voltage devi-
ation to 10mV for a 100mA to 500mA load step, with only
a 2.2µF ceramic output capacitor, and the voltage devia-
tions can be reduced further by increasing the output
capacitor.
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 protec-
tion, and thermal-overload protection.
The MAX15030 features a BIAS input allowing a sec-
ondary 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.
Applications
Automotive (Dead-Man LDO)
Servers
Storage
Networking
Base Stations
Optical Modules
ATE
Features
♦1.425V to 3.6V Input Voltage Range
♦Output Voltage Programmable from 0.5V to VIN
♦Guaranteed Maximum 150mV Dropout for
Standard Package and 190mV Dropout for Side-
Wettable Package 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
♦Thermally Enhanced 3mm x 3mm TDFN Package
MAX15029/MAX15030
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
________________________________________________________________
Maxim Integrated Products
1
1+
3
4
10
8
7
OUT
GND
FB
IN
IN
I.C.
MAX15029
29
OUTIN
56
SSEN EP
TDFN
(3mm x 3mm)
TOP VIEW
Pin Configurations
Ordering Information
19-4586; Rev 4; 1/12
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.
Pin Configurations continued at end of data sheet.
PART TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX15029ATB+ -40°C to +125°C 10 TDFN-EP* +AUF
MAX15029ATB/V+ -40°C to +125°C 10 TDFN-EP* +AXK
MAX15029AGA/VY+† -40°C to +125°C 8 TDFN-EP** +ACQ
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.
**Exposed pad side-wettable flanked package.
†Future product—contact factory for availability.
Typical Operating Circuits appear at end of data sheet.
MAX15029/MAX15030
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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)
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, 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
Side-Wettable TDFN
Junction-to-Ambient Thermal Resistance (θJA) ............41°C/W
Junction-to-Case Thermal Resistance (θJC) ...................8°C/W
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
IN
MAX15029 1.425 3.600
VBIAS = 3V to 5.5V 1.425 3.600
Input Voltage Range VIN MAX15030 BIAS = IN 3.000 3.600
V
MAX15029 1.275 1.325 1.375
Undervoltage Lockout VUVLO V
IN rising MAX15030 1.04 1.09 1.14 V
Undervoltage Lockout Hysteresis VUVLO_HYST I
OUT = 2mA 50 mV
VIN = 1.425V to 3.6V, VOUT = 1.2V,
IOUT = 1mA, VBIAS = 3.3V 160 275 410
VIN = 3.6V, VOUT = 3.3V, IOUT = 100mA 180 325 560
Quiescent GND Current IGND
VIN = 3.3V, VOUT = 3.3V, IOUT = 500mA 170 315 470
μA
Input Supply Current in Shutdown IIN_SD V
EN = 0V (TA= -40°C to +85°C) 0.1 5.5 μA
BIAS (MAX15030)
Input Voltage Range VBIAS 3 5.5 V
Undervoltage Lockout VBIAS_UVLO V
BIAS rising 2.3 2.5 2.7 V
Undervoltage Lockout Hysteresis IOUT = 2mA 110 mV
Quiescent Input Supply Current IBIAS V
EN = VBIAS 20 60 120 μA
VIN = 0V, VOUT = 0V,
VBIAS = 3.3V 1.2 2
VIN = 3.3V, VOUT = 0V,
VBIAS = 3.3V 1.2 2
Input Supply Current in Shutdown IBIAS_SD EN = GND
VIN = 3.3V, VOUT = 0V,
VBIAS = 5V 1.5 3
μA
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.
MAX15029/MAX15030
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(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)
Note 2: All devices are production tested at TA= +25°C. Limits over the operating temperature range are guaranteed by design
and characterization.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
OUT
Output Voltage Range VOUT 0.5 3.3 V
Load Regulation IOUT = 1mA to 500mA 0.01 mV/mA
Line Regulation VIN = 1.425V to 3.6V, VOUT = 1.2V,
IOUT = 1mA 4 mV
IOUT = 500mA, VOUT = 1.2V, VIN = 1.5V 40 150
Dropout Voltage (VIN - VOUT)
(Note 2) VDO Side-wettable package, IOUT = 500mA,
VOUT = 1.2V, VIN = 1.5V 50 190
mV
VFB = 300mV 0.7 0.85 1.0
Output Current Limit ILIM Side-wettable package, VFB = 300mV 0.66 0.72 0.9 A
FB
Threshold Accuracy VFB VOUT = 1.125V to 3.3V, VIN = (VOUT +
0.3V) to 3.6V, IOUT = 1mA to 500mA 0.489 0.499 0.509 V
Input Current IFB V
FB = 0.488V 0.1 0.2 μA
EN/SOFT-START
VIH 1.05
Enable Input Threshold
(MAX15030) VIL
VBIAS = 5V 0.4
V
VIH 1.05
Enable Input Threshold
(MAX15029) VIL
VIN = 1.8V 0.4
V
Soft-Start Charging Current ISS 5 μA
Soft-Start Reference Voltage VSS 0.499 V
THERMAL SHUTDOWN
Thermal Shutdown Threshold TJ rising 165 °C
Thermal Shutdown Hysteresis 15 °C
BIAS CURRENT
vs. BIAS VOLTAGE
MAX15029 toc04
BIAS VOLTAGE (V)
BIAS CURRENT (µA)
5432
10
20
30
40
50
60
70
0
16
VIN = 1.8V
VOUT = 1.5V
IOUT = 0
BIAS CURRENT
vs. OUTPUT CURRENT
MAX15029 toc05
OUTPUT CURRENT (mA)
BIAS CURRENT (µA)
600400200
51
52
53
54
55
56
57
58
59
60
50
0 800
VBIAS = 5.5V
VBIAS = 3.3V
GROUND CURRENT
vs. OUTPUT CURRENT
MAX15029 toc06
OUTPUT CURRENT (mA)
GROUND CURRENT (mA)
400300200100
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
0 500
VBIAS = 3.3V
MAX15029/MAX15030
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
4 _______________________________________________________________________________________
Typical Operating Characteristics
(Circuit of Figure 1, VIN = 1.8V, VOUT = 1.5V, IOUT = 500mA, TA= +25°C, unless otherwise noted.)
OUTPUT VOLTAGE
vs. INPUT VOLTAGE
MAX15029 toc01
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
3.53.00.5 1.0 1.5 2.0 2.5
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
0 4.0
IOUT = 0
VBIAS = 3.3V
OUTPUT VOLTAGE
vs. OUTPUT CURRENT
MAX15029 toc02
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE (V)
600400200
1.46
1.47
1.48
1.49
1.50
1.51
1.45
0 800
VBIAS = 3.3V
INPUT CURRENT
vs. INPUT VOLTAGE
MAX15029 toc03
INPUT VOLTAGE (V)
INPUT CURRENT (mA)
3.53.02.52.01.51.00.5
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
0 4.0
VBIAS = 3.3V
IOUT = 0
DROPOUT VOLTAGE
vs. OUTPUT CURRENT
MAX15029 toc07
OUTPUT CURRENT (mA)
DROPOUT VOLTAGE (mV)
600400200
10
20
30
40
50
60
70
80
90
0
0 800
VOUT = 1.5V
VBIAS = 3.3V
FEEDBACK VOLTAGE
vs. TEMPERATURE
MAX15029 toc08
TEMPERATURE (°C)
FEEDBACK VOLTAGE (mV)
1251007550250-25
497.0
497.5
498.0
498.5
499.0
499.5
496.5
-50 150
IOUT = 0
IOUT = 500mA
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
_______________________________________________________________________________________
5
OUTPUT VOLTAGE
vs. TEMPERATURE
MAX15029 toc09
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
1251007550250-25
1.48
1.49
1.50
1.51
1.52
1.53
1.47
-50 150
IOUT = 0
IOUT = 500mA
OUTPUT VOLTAGE
vs. OUTPUT CURRENT
MAX15029 toc10
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE (V)
600400200
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
0 800
VIN = 1.2V
VIN = 1.8V
TA = +125°C
VOUT = 1.5V
CURRENT LIMIT
vs. TEMPERATURE
MAX15029 toc11
TEMPERATURE (°C)
CURRENT LIMIT (mA)
12510050 750 25-25
770
790
810
830
850
870
890
910
930
950
750
-50 150
POWER-DOWN RESPONSE
MAX15029 toc14
20ms/div
1V/div
VOUT
VIN 2V/div
0
0
IOUT = 500mA
LOAD-TRANSIENT RESPONSE
MAX15029 toc12
20μs/div
20mA/div
IOUT
VOUT 10mV/div
AC-COUPLED
0
IOUT = 100mA TO 500mA TO 100mA
POWER-UP RESPONSE
MAX15029 toc13
2ms/div
1V/div
VOUT
VIN
1V/div
0
0
IOUT = 500mA
MAX15029/MAX15030
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
6 _______________________________________________________________________________________
Pin Description
PIN
MAX15029
8-PIN 10-PIN MAX15030 NAME FUNCTION
1, 2 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.
3 4 4 I.C. Internally Connected. Connect I.C. directly to GND.
4 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.
5 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.
6 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.
7 8 8 GND Ground
8 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.
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN = 1.8V, VOUT = 1.5V, IOUT = 500mA, TA= +25°C, unless otherwise noted.)
TURN-OFF WITH ENABLE RESPONSE
MAX15029 toc16
4μs/div
1V/div
VOUT
VEN 2V/div
0
0
IOUT = 500mA
TURN-ON WITH ENABLE RESPONSE
MAX15029 toc15
2ms/div
1V/div
VOUT
VEN
2V/div
0
0
IOUT = 500mA
MAX15029/MAX15030
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
_______________________________________________________________________________________ 7
Functional Diagram
INTERNAL
SUPPLY
GENERATOR
BIAS
UVLO
IN
UVLO
CONTROL
LOGIC
P
REF
ERROR
AMPLIFIER
WITH
SOFT-START
OVERTEMPERATURE
PROTECTION
MOS DRIVER
WITH ILIMIT
BIAS
IN
EN
FB
SS
OUT
GND
MAX15030
ONLY
MAX15029
ONLY
REF
MAX15029
MAX15030
Detailed Description
The MAX15029/MAX15030 low-dropout linear regula-
tors 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 shut-
down. 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 volt-
ages 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.
MAX15029/MAX15030
Internal p-Channel Pass Transistor
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.
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 temper-
ature reaches +165°C (typ), the thermal-overload cir-
cuitry 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 regu-
lation. Current limiting and thermal protection continue
until the fault is removed. For continuous operation, do
not exceed the absolute maximum junction-tempera-
ture rating of TJ= +150°C.
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.
Shutdown Mode
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 10kΩresistor is
connected between OUT and GND.
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:
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:
RRV
V
OUT
FB
12 1=⎛
⎝
⎜⎞
⎠
⎟
−
VV R
R
OUT FB
=+
⎛
⎝
⎜⎞
⎠
⎟
11
2
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
8 _______________________________________________________________________________________
0.1uF
ENABLE
SHUTDOWN
R2
R1
INPUT
1.425V TO 3.6V
ALWAYS-ON
INPUT
3V TO 5.5V
OUTPUT
2.2μF
1μF
IN
BIAS OUT
FB
I.C.
GND
EN
SS
MAX15030
Figure 1. MAX15030 Typical Application Circuit
Capacitor Selection and
Regulator Stability
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 pre-
vent VIN sagging due to load transients. Smaller output
capacitors can be used for output currents less than
500mA. Calculate the minimum COUT as follows:
Operating Region and
Power Dissipation
The maximum power dissipation depends on the ther-
mal 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 dissipat-
ed in the device is PDISS = IOUT (VIN - VOUT). 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.
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, tran-
sient 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 Characteristic
s) 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
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.
CI F
A
OUT OUT MAX
=×
⎛
⎝
⎜⎞
⎠
⎟
() .
1
025
μ
MAX15029/MAX15030
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
_______________________________________________________________________________________ 9
MAX15029/MAX15030
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
10 ______________________________________________________________________________________
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.
INPUT
1.425V TO 3.6V
OUTPUT
0.5V TO VIN
2.2μF
1μF
IN
OUT
FB
GND
EN
SS
MAX15029
INPUT
1.425V TO 3.6V
ALWAYS-ON INPUT
3V TO 5.5V
OUTPUT
0.5V TO VIN
2.2μF
1μF
IN
BIAS OUT
FB
GND
EN
SS
MAX15030
Typical Operating Circuits
1
3
4
10
8
7
OUT
GND
FB
IN
BIAS
I.C.
MAX15030
MAX15029
2 9 OUTIN
56SSEN
TDFN
(3mm x 3mm)
TDFN
(3mm x 3mm)
+
EP
TOP VIEW
+
4
1
2
3
5
8
7
6
TOP VIEW
IN
IN
I.C.
EN EP
OUT
GND
FB
SS
Pin Configurations (continued)
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
10 TDFN-EP T1033+1 21-0137 90-0003
8 TDFN-EP G833Y+1 21-0583 90-0359
Chip Information
PROCESS: BiCMOS
MAX15029/MAX15030
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
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implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
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Revision History
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
0 4/09 Initial release —
1 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, 2, 10
2 10/11 Added the side-wettable TDFN package 1, 2, 3, 6, 10
3 1/12
Updated the Features bullet defining the dropout for the standard and side-wettable
packages; updated the ILIM min, typ, and max values for the side-wettable package
in the Electrical Characteristics table
1, 3
4 1/12
Changed the ILIM min value for the side-wettable package from 0.575A to 0.66A in
the Electrical Characteristics table 3
