General Description
The MAX8530/MAX8531 offer the benefits of low-
dropout voltage and ultra-low power regulation in
subminiaturized UCSP and QFN packages with an inte-
grated microprocessor reset circuit (MAX8530 only).
The devices operate from a 2.5V to 6.5V input and
deliver up to 200mA and 150mA outputs with low
dropout of 100mV (typ) at 100mA. Designed with an
internal P-channel MOSFET pass transistor, the supply
current is kept at a low 130µA (with both LDOs on),
independent of the load current and dropout voltage.
Other features include short-circuit protection and
thermal-shutdown protection.
The MAX8530 provides microprocessor open-drain,
active-low reset output to monitor OUT1, eliminating
external components and adjustments. The MAX8530
asserts a 100ms (min) RESET signal when OUT1 drops
below 87% of the nominal output voltage. The MAX8531
includes a reference bypass pin for low output noise
(40µVRMS).
Both devices include a logic-controlled shutdown input
and are available in 6-bump UCSP and 6-pin thin QFN
exposed pad packages.
Applications
Cellular and Cordless Phones
PDAs and Palmtop Computers
Notebook Computers
Digital Cameras
PCMCIA Cards
Wireless LAN Cards
Hand-Held Instruments
Features
Guaranteed 200mA Output Current for OUT1
Guaranteed 150mA Output Current for OUT2
Low 100mV (typ) Dropout at 100mA Load for
both LDOs
Open-Drain, Active-Low 100ms (min) Reset Timer
(MAX8530)
Low 40µVRMS Output Noise (MAX8531)
Low 130µA Operating Supply Current
<1µA Shutdown Current
Thermal-Overload and Short-Circuit Protection
Output Current Limit
Tiny Packages Available
1.16 x 1.57 x 0.6mm UCSP (3 x 2 Grid)
3mm x 3mm Thin QFN
MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with
RESET
or Low-Noise Output in UCSP or QFN
Ordering Information
19-2711; Rev 1; 8/05
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
*xy = Output voltage code (see the Output Voltage Selector
Guide).
**EP = Exposed pad.
+Denotes lead-free package.
EVALUATION KIT
AVAILABLE
Pin Configurations appear at end of data sheet.
Output Voltage Selector Guide appears at end of data sheet.
PART TEMP
RANGE
OUT_
VOLTAGE
PIN-
PACKAGE
MAX8530E BTxy*- T
- 40° C to + 85° C 1.5V to 3.3V
6 UCS P
M AX 8530E BTxy*+ T
- 40° C to + 85° C 1.5V to 3.3V
6 UCS P
M AX 8530E TTxy*- T
- 40° C to + 85° C 1.5V to 3.3V
6 Thi n QFN- EP**
M AX 8530E TTxy*+ T
- 40° C to + 85° C 1.5V to 3.3V
6 Thi n QFN- EP**
MAX8531E BTxy*- T
- 40° C to + 85° C 1.5V to 3.3V
6 UCS P
M AX 8531E BTxy*+ T
- 40° C to + 85° C 1.5V to 3.3V
6 UCS P
M AX 8531E TTxy*- T
- 40° C to + 85° C 1.5V to 3.3V
6 Thi n QFN- EP
M AX 8531E TTxy*+ T
- 40° C to + 85° C 1.5V to 3.3V
6 Thi n QFN- EP
IN OUT1
2.2μF
CIN
2.2μF
INPUT
2.5V TO 6.5V
1.5V TO 3.3V
AT 200mA
1.5V TO 3.3V
AT 150mA
1μF
SHDN
OFF
ON OUT2
GND
RESET
BASEBAND
μP
VI/O
VCORE
RESET
MAX8530
Typical Operating Circuit
MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with
RESET
or Low-Noise Output in UCSP or QFN
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(IN = 3.8V, SHDN = IN, CBP = 10nF (MAX8531), TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
(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, SHDN, RESET, BP to GND .................................-0.3V to +7V
OUT1, OUT2 to GND...................................-0.3V to (VIN + 0.3V)
Output Short-Circuit Duration ........................................Indefinite
Continuous Power Dissipation (TA = +70°C)
6-Bump UCSP (derate 3.9mW/°C above +70°C) ........308mW
6-Lead QFN (derate 24.4mW/°C above +70°C) ........1951mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
6-Bump+ UCSP Solder Profile ....................................(Note 1)
6-Lead QFN Lead Temperature (10s) .........................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Input Voltage VIN 2.5 6.5 V
Undervoltage Lockout Threshold
VUVLO IN rising, hysteresis is 40mV (typ)
2.15 2.25 2.42
V
TA = +25°C, IOUT1 = IOUT2 = 1mA -1 +1
TA = -40°C to +85°C, IOUT1 = IOUT2 = 1mA -2 +2
Output Voltage Accuracy
TA = - 40°C to + 85° C , IOU T 1 = 0.1m A to 200m A,
IOU T 2 = 0.1m A to 150m A-3 +3
%
OUT1
200
Maximum Output Current IOUT_ OUT2
150
mA
OUT1
210 330 550
Current Limit ILIM OUT2
165 280 500
mA
No load
130 220
Ground Current IQIOUT1 = IOUT2 = 100mA
150
µA
Dropout Voltage
VOUT_ - VIN
IOUT_ = 100mA (Note 3)
100 200
mV
Line Regulation ΔVLNR IN = (OUT_ + 0.1V) to 3.8V
-0.2 +0.2
%/V
MAX8530
320
Output Voltage Noise 10Hz to 100kHz, COUT = 10µF,
IOUT = 10mA MAX8531 40
µVRMS
MAX8530 60
Ripple Rejection PSRR 100Hz, IOUT = 30mA MAX8531 62 dB
SHUTDOWN
SHDN = 0, TA = +25°C
0.01
1
SHDN Supply Current IOFF SHDN = 0, TA = +85°C 0.1 µA
VIH Input high voltage 1.6
SHDN Input Threshold VIL Input low voltage 0.4 V
TA = +25°C
0.7
100
SHDN Input Bias Current ISHDN SHDN = IN or GND
TA = +85°C
0.8 nA
THERMAL PROTECTION
Thermal-Shutdown Temperature
TSHDN TJ rising
160
°C
Thermal-Shutdown Hysteresis
ΔTSHDN
10 °C
Note 1: For UCSP solder profile information, visit www.maxim-ic.com/1st_pages/UCSP.html.
MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with
RESET
or Low-Noise Output in UCSP or QFN
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(IN = 3.8V, SHDN = IN, CBP = 10nF (MAX8531), TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
(Note 2)
Note 2: All units are 100% production tested at TA= +25°C. Limits over the operating temperature range are guaranteed by design.
Note 3: The dropout voltage is defined as VIN - VOUT, when VOUT is 100mV below the value of VOUT for VIN = VOUT + 0.5V.
Specification applies only when VOUT 2.5V.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RESET OUTPUT (MAX8530 ONLY)
RESET Threshold VTH Percentage of nominal output, OUT1 falling,
when RESET falls. 84 87 89 %
RESET Threshold Hysteresis 0.5 %
IRESET = 500µA, IN = 3.8V 10 20
RESET Output Voltage Low
(Open-Drain, Active Low) VOL IRESET = 100µA, IN = 1.2V 10 40 mV
TA = +25°C 0.001
1
RESET Open-Drain
Output Leakage Current V
RESET = 6.5V
TA = +85°C 0.01
µA
RESET Active Timeout Delay From OUT1 rising to RESET rising.
100 200 360
ms
Typical Operating Characteristics
VOUT1 = 3.3V, VOUT2 = 1.5V, load = 80mA (both output voltages), VIN = 3.8V, COUT_ = 2.2µF, CBP = 0.01µF, CIN = 2.F, and TA= +25°C,
unless otherwise noted.
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX8530 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (μA)
654321
50
100
150
200
250
0
0
80mA LOAD, BOTH OUTPUTS
NO LOAD
SUPPLY CURRENT
vs. LOAD CURRENT
MAX8530 toc02
LOAD CURRENT (mA)
SUPPLY CURRENT (μA)
706040 5020 3010
20
40
60
80
100
120
140
160
180
200
0
080
BOTH OUTPUTS LOADED
SUPPLY CURRENT
vs. TEMPERATURE
MAX8530 toc03
TEMPERATURE (°C)
SUPPLY CURRENT (μA)
603510-15
20
40
60
80
100
120
140
160
180
200
0
-40 85
80mA LOAD, BOTH OUTPUTS
MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with
RESET
or Low-Noise Output in UCSP or QFN
4 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
VOUT1 = 3.3V, VOUT2 = 1.5V, load = 80mA (both output voltages), VIN = 3.8V, COUT_ = 2.2µF, CBP = 0.01µF, CIN = 2.F, and TA= +25°C,
unless otherwise noted.
DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX8530 toc04
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV)
18016014012010080604020
50
100
150
200
250
0
0 200
LDO DROPOUT VOLTAGE vs. VOUT
MAX8530 toc05
VOUT (V)
DROPOUT VOLTAGE (mV)
3.23.13.02.92.82.72.6
20
40
60
80
100
120
0
2.5 3.3
IOUT1 = 80mA
OUTPUT VOLTAGE ACCURACY
vs. TEMPERATURE
MAX8530 toc06
TEMPERATURE (°C)
OUTPUT VOLTAGE (%)
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
PSRR vs. FREQUENCY
MAX8530 toc07
FREQUENCY (kHz)
PSRR (dB)
1001010.1
10
20
30
40
50
60
70
0
0.01 1000
OUT2 = 2.85V
OUT1 = 2.85V
100Ω LOAD
CHANNEL-TO-CHANNEL ISOLATION
vs. FREQUENCY (MAX8531)
MAX8530 toc08
FREQUENCY (kHz)
CHANNEL-TO-CHANNEL ISOLATION (dB)
100100.1 1
10
20
30
40
50
60
70
80
0
0.01 1000
100Ω LOAD
OUTPUT NOISE SPECTRAL DENSITY
vs. FREQUENCY (MAX8531)
MAX8530 toc09
FREQUENCY (kHz)
NOISE DENSITY (nVRMS/Hz)
1010.1
100
1000
10,000
10
0.01 100
OUTPUT NOISE (10Hz TO 100kHz)
(MAX8531)
MAX8530 toc10
VOUT_ 500μV/
div
10ms/div
LINE TRANSIENT
MAX8530 toc11
VOUT_
4.5V
40μs/div
VIN 3.5V
1V/div
20mV/div
AC-COUPLED
MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with
RESET
or Low-Noise Output in UCSP or QFN
_______________________________________________________________________________________ 5
LOAD TRANSIENT
(VIN = 3.8V, ILOAD = 1mA TO 80mA)
MAX8530 toc12
ILOAD
50mA/div
10μs/div
VOUT
0
20mV/div
AC-COUPLED
Pin Description
PIN
MAX8530
(QFN)
MAX8531
(QFN)
MAX8530
(UCSP)
MAX8531
(UCSP)
NAME
FUNCTION
1 1 B3 B3
OUT2
Regulator 2 Output. Guaranteed 150mA output current.
2 2 B2 B2 IN Regulator Input
3 3 B1 B1
OUT1
Regulator 1 Output. Guaranteed 200mA output current.
4 4 A1 A1
GND
Ground. Also functions as a heatsink for the 6-pin QFN. Solder to a large
pad or the circuit board ground plane to maximize thermal dissipation.
5 5 A2 A2
SHDN
Shutdown Input. A logic low shuts down both regulators. Connect to IN
for normal operation.
6 A3
RESET
Reset Active-Low Open-Drain Output. Minimum timeout of 100ms. RESET
is low in shutdown.
—6A3BP
Reference Noise Bypass. Connect to a 0.01µF ceramic capacitor for
reduced noise at both outputs.
Typical Operating Characteristics (continued)
VOUT1 = 3.3V, VOUT2 = 1.5V, load = 80mA (both output voltages), VIN = 3.8V, COUT_ = 2.2µF, CBP = 0.01µF, CIN = 2.F, and TA= +25°C,
unless otherwise noted.
LOAD TRANSIENT NEAR DROPOUT
MAX8530 toc13
ILOAD
50mA/div
10μs/div
VOUT
0
20mV/div
AC-COUPLED
VIN = VOUT + 0.1V
RESET RESPONSE
(MAX8530)
MAX8530 toc14
VOUT-
2V/
div
40ms/div
VIN
0
VRESET
2V/
div
0
2V/
div
0
SHUTDOWN RESPONSE
MAX8530 toc15
VOUT-
1V/
div
1ms/div
0
VSHDN
2V/
div
0
MAX8530/MAX8531
Detailed Description
The MAX8530/MAX8531 are low-power, low-dropout,
low-quiescent current linear regulators with reset
designed primarily for battery-powered applications.
For preset output voltages, refer to the Output Voltage
Selector Guide. Other combinations between 1.5V and
3.3V are available in 50mV increments. This device
supplies loads up to 200mA for OUT1 and 150mA for
OUT2. The MAX8530/MAX8531 consist of a 1.25V ref-
erence, error amplifiers, P-channel pass transistors,
reset block, and internal feedback voltage-dividers.
The 1.25V 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
lower, allowing more current to pass to the output and
increasing the output voltage. If the feedback voltage is
too high, the pass-transistor gate is pulled up, 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.
RESET
The reset circuit is active at power-up and power-down.
RESET is held low at power-up. The reset timing starts
once the OUT1 voltage reaches 87% (typ) of its regula-
tion voltage. The RESET signal goes high 200ms (typ)
after the OUT1 voltage reaches 87% (typ) of its regulation
voltage. At power-off, RESET goes low when the OUT1
voltage is below 87% (typ) of its regulation voltage.
Dual Low-Dropout Linear Regulators
with
RESET
or Low-Noise Output in UCSP or QFN
6 _______________________________________________________________________________________
P
N
ERROR
AMP
IN
SHDN
GND
OUT1
RESET*
* MAX8530 ONLY
**MAX8531 ONLY
BP**
OUT2
MOS
DRIVER
WITH ILIMIT
DELAY
THERMAL
SENSOR
LDO2
87%
REF
1.25V
REF
SHUTDOWN
AND
POWER-ON
CONTROL
MAX8530
MAX8531
Functional Diagram
Shutdown
The MAX8530/MAX8531 have a single shutdown con-
trol input (SHDN). Drive SHDN low to shut down both
outputs, reducing supply current to 10nA. Connect
SHDN to a logic high, or IN, for normal operation.
Internal P-Channel Pass Transistor
The MAX8530/MAX8531 feature two 1ΩP-channel
MOSFET pass transistors. A P-channel MOSFET pro-
vides several advantages over similar designs using
PNP pass transistors, including longer battery life. It
requires no base drive, substantially reducing quies-
cent current. PNP-based regulators waste considerable
current in dropout when the pass transistor saturates
and also use high base-drive currents under heavy
loads. The MAX8530/MAX8531 do not suffer these
problems and consume only 150µA of quiescent cur-
rent whether in dropout, light-load, or heavy-load appli-
cations (see the Typical Operating Characteristics).
Whereas a PNP-based regulator has dropout voltage
that is independent of the load, a P-channel MOSFET’s
dropout voltage is proportional to load current, providing
for low dropout voltage at heavy loads and extremely
low dropout voltage at lighter loads.
Current Limit
The MAX8530/MAX8531 contain two independent cur-
rent limiters, one for each regulator, which monitor and
control the pass transistor’s gate voltage and limit the
output currents to 210mA and 165mA minimum. The
output can be shorted to ground for an indefinite time
without damaging the part.
Thermal-Overload Protection
Thermal-overload protection limits total power dissipa-
tion in the MAX8530/MAX8531. When the junction tem-
perature exceeds TJ= +160°C, the thermal sensor
signals the shutdown logic, turning off the pass transistor
and allowing the IC to cool. The thermal sensor turns the
pass transistor on again after the IC’s junction tempera-
ture cools by 10°C, resulting in a pulsed output during
continuous thermal-overload conditions.
Thermal-overload protection is designed to protect the
MAX8530/MAX8531 in the event of fault conditions. For
continual operation, do not exceed the absolute maxi-
mum junction temperature rating of TJ= +150°C.
Operating Region and Power Dissipation
The MAX8530/MAX8531s’ maximum power dissipation
depends on the thermal resistance of the case and cir-
cuit board, the temperature difference between the die
junction and ambient air, and the rate of airflow. The
power dissipation across the device is P = IOUT (VIN -
VOUT). Maximum power dissipation:
PMAX = (TJ- TA)/(θJB + θBA)
where TJ- TAis the temperature difference between the
MAX8530/MAX8531 die junction and the surrounding air,
θJB (or θJC) is the thermal resistance of the package, and
θBA is the thermal resistance through the printed circuit
board, copper traces, and other materials to the sur-
rounding air.
The GND pin of the MAX853_ETT__ (6-lead QFN) per-
forms the dual functions of providing an electrical con-
nection to the ground and channeling heat away.
Connect the GND pin and exposed pad to ground
using a large pad or ground plane.
Low-Noise Operation (MAX8531)
An external 0.01µF bypass capacitor at BP, in conjunc-
tion with an internal resistor, creates a lowpass filter
(see the Typical Application Circuit). The MAX8531
exhibits 40µVRMS output voltage noise with CBP =
0.01µF and COUT = 2.2µF (see the Output Noise
Spectral Density vs. Frequency graph in the Typical
Operating Characteristics).
MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with
RESET
or Low-Noise Output in UCSP or QFN
_______________________________________________________________________________________ 7
IN OUT1
2.2μF
CIN
2.2μF
INPUT
2.5V TO 6.5V 1.5V TO 3.3V
AT 200mA
1.5V TO 3.3V
AT 150mA
1μF
10nF
SHDN
OFF
ON OUT2
GND
BP
MAX8531
MAX8531
Typical Appication Circuit
MAX8530/MAX8531
Applications Information
Capacitor Selection
and Regulator Stability
Use a 2.2µF capacitor on the MAX8530/MAX8531s’
inputs. Larger input capacitor values with lower ESRs
provide better supply-noise rejection and line-transient
response. To reduce noise and improve load transients,
use large-output capacitors, up to 10µF. For stable
operation over the full temperature range and with rated
maximum load currents, use a minimum of 2.2µF (or
1µF for <150mA loading for OUT1) and 1µF for OUT2.
Note that some ceramic dielectrics exhibit large capac-
itance and ESR variation with temperature. With
dielectrics such as Z5U and Y5V, it is necessary to use
4.7µF or more to ensure stability at temperatures below
-10°C. With X7R or X5R dielectrics, 2.2µF is sufficient at
all operating temperatures. These regulators are opti-
mized for ceramic capacitors. Tantalum capacitors are
not recommended.
PSRR and Operation from
Sources Other than Batteries
The MAX8530/MAX8531 is designed to deliver low
dropout voltages and low quiescent currents in battery-
powered systems. Power-supply rejection is 60dB at
low frequencies (see the Power-Supply Rejection Ratio
vs. Frequency graph in the Typical Operating Char-
acteristics).
When operating from sources other than batteries,
improve supply-noise rejection and transient response
by increasing the values of the input and output bypass
capacitors and through passive filtering techniques.
Load-Transient Considerations
The MAX8530/MAX8531 load-transient response
graphs (see the Typical Operating Characteristics)
show two components of the output response: a DC
shift in the output voltage because of the different load
currents, and the transient response. Increase the output
capacitor’s value and decrease its ESR to attenuate
transient spikes.
Input/Output (Dropout Voltage)
A regulator’s minimum input/output voltage differential
(or dropout voltage) determines the lowest usable supply
voltage. In battery-powered systems, this determines
the useful end-of-life battery voltage. Because the
MAX8530/MAX8531 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).
Calculating the Maximum
Output Power in UCSP
The maximum output power of the MAX8530/MAX8531
can be limited by the maximum power dissipation of the
package. Obtain the maximum power dissipation by
calculating the power dissipation of the package as a
function of the input voltage, output voltage, and output
currents. The maximum power dissipation should not
exceed the package’s maximum power rating:
P = (VIN(MAX) - VOUT1) x IOUT1 +
(VIN(MAX) - VOUT2) x IOUT2
where:
VIN(MAX) = Maximum input voltage
PMAX = Maximum power dissipation of the package
(308mW for UCSP and 1951mW for the QFN package)
VOUT1 = Output voltage of OUT1
VOUT2 = Output voltage of OUT2
IOUT1 = Maximum output current of OUT1
IOUT2 = Maximum output current of OUT2
P should be less than PMAX. If P is greater than PMAX,
consider using the QFN package.
Dual Low-Dropout Linear Regulators
with
RESET
or Low-Noise Output in UCSP or QFN
8 _______________________________________________________________________________________
MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with
RESET
or Low-Noise Output in UCSP or QFN
_______________________________________________________________________________________ 9
1
2IN
3
6
5
4OUT1
RESET (BP*)
SHDN
GND
OUT2
THIN QFN
MAX8530ETT
(MAX8531ETT)
*MAX8531 ONLY
TOP VIEW
A "+" SIGN WILL REPLACE THE FIRST PIN INDICATOR ON LEAD-FREE PACKAGES.
Chip Information
TRANSISTOR COUNT: 1720
PROCESS: BiCMOS
Output Voltage Selector Guide
PART VOUT1 VOUT2
TOP MARK
MAX8530EBTJ2 2.85 1.8 ACR
MAX8530EBTJO
2.85 2.6 ACA
MAX8530EBTKG
2.8 3.0 ACT
MAX8530ETTP2 2.5 1.8 AET
MAX8530ETTO2
2.6 1.8 AES
MAX8530ETTK2
2.8 1.8 AER
MAX8530ETTKO
2.8 2.6 AEQ
MAX8531EBTJJ 2.85 2.85 ACG
MAX8531EBTGG
3.0 3.0 ACI
MAX8531ETTGG
3.0 3.0 AEF
Note:Contact the factory for other output voltages between
1.5V and 3.3V. The minimum order quantity is 25,000 units.
MAX8530EBT
(MAX8531EBT)
UCSP
A2 A3A1
SHDNGND
RESET
(BP*)
INOUT1
*MAX8531 ONLY
OUT2
B1 B2 B3
TOP VIEW
A "+" SIGN WILL REPLACE THE FIRST PIN INDICATOR ON LEAD-FREE PACKAGES.
Pin Configurations
MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with
RESET
or Low-Noise Output in UCSP or QFN
10 ______________________________________________________________________________________
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
6, 8, &10L, DFN THIN.EPS
L
CL
C
PIN 1
INDEX
AREA
D
E
L
e
L
A
e
E2
N
G
12
21-0137
PACKAGE OUTLINE, 6,8,10 & 14L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
-DRAWING NOT TO SCALE-
k
e
[(N/2)-1] x e
REF.
PIN 1 ID
0.35x0.35
DETAIL A
b
D2
A2
A1
MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with
RESET
or Low-Noise Output in UCSP or QFN
______________________________________________________________________________________ 11
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
COMMON DIMENSIONS
SYMBOL MIN. MAX.
A0.70 0.80
D2.90 3.10
E2.90 3.10
A1 0.00 0.05
L0.20 0.40
PKG. CODE ND2 E2 eJEDEC SPEC b[(N/2)-1] x e
PACKAGE VARIATIONS
0.25 MIN.k
A2 0.20 REF.
2.30±0.101.50±0.106T633-1 0.95 BSC MO229 / WEEA 1.90 REF0.40±0.05
1.95 REF0.30±0.05
0.65 BSC
2.30±0.108T833-1
2.00 REF0.25±0.05
0.50 BSC
2.30±0.1010T1033-1
2.40 REF0.20±0.05- - - -
0.40 BSC
1.70±0.10 2.30±0.1014T1433-1
1.50±0.10
1.50±0.10
MO229 / WEEC
MO229 / WEED-3
0.40 BSC - - - - 0.20±0.05 2.40 REFT1433-2 14 2.30±0.101.70±0.10
T633-2 6 1.50±0.10 2.30±0.10 0.95 BSC MO229 / WEEA 0.40±0.05 1.90 REF
T833-2 8 1.50±0.10 2.30±0.10 0.65 BSC MO229 / WEEC 0.30±0.05 1.95 REF
T833-3 8 1.50±0.10 2.30±0.10 0.65 BSC MO229 / WEEC 0.30±0.05 1.95 REF
-DRAWING NOT TO SCALE-
G22
21-0137
PACKAGE OUTLINE, 6,8,10 & 14L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
DOWNBONDS
ALLOWED
NO
NO
NO
NO
YES
NO
YES
NO
MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with
RESET
or Low-Noise Output in UCSP or QFN
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.
12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc.
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
6L, UCSP.EPS
G
11
21-0097
PACKAGE OUTLINE, 3x2 UCSP
ENGLISH ???? ??? ???
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Maxim > Products > Power and Battery Management
MAX8530, MAX8531
Dual Low-Dropout Linear Regulator with Reset or Low-Noise Output in UCSP or QFN
Industry's Smallest, Low-Dropout Linear Regulators Designed for Low-Noise, Space-Sensitive
Applications
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Ordering Information
Notes:
Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.1.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one
business day.
2.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data
Sheet or Part Naming Conventions.
3.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses.4.
Devices: 1-31 of 31
MAX8530
Free
Sam ple
Buy
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free?
Materials Analysis
MAX8530ETTK2
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8530ETTK2+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX8530ETTK2+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX8530ETTG2+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX8530ETTG2+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX8530ETTK2-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8530ETTP2+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX8530ETTP2+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX8530ETTG2
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8530ETTG2-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8530ETT8A
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8530ETT8A-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8530EBTJJ+T
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX8530EBTKG
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8530EBTKG-T
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8530EBTJJ+
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX8530EBTJ2
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8530EBT8A
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8530EBTJO
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8530EBTJO-T
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8530EBTJ2-T
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8530EBT8A-T
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8531
Free
Sam ple
Buy
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free?
Materials Analysis
MAX8531EBTGGJ+T
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX8531ETTA8
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8531ETTA8-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8531EBTJJ+T
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX8531EBTJJ+
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX8531EBTJJ
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8531EBTA8
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8531EBTJJ-T
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX8531EBTA8-T
UC SP;6 pin;2 mm
Dwg: 21-0097G (PDF)
Use pkgcode/variation: B6-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
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Document Ref.: 1 9 -2711; Rev 1; 2005-09-20
This page last modified: 2007-08-03
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