Maxim MAX8530EBT Dual low-dropout linear regulators with resetor low-noise output in ucsp or qfn Datasheet

19-2711; Rev 0; 1/03
KIT
ATION
EVALU
E
L
B
AVAILA
Dual Low-Dropout Linear Regulators
with RESET or Low-Noise Output in UCSP or QFN
Features
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.
♦ 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
Ordering Information
PART
Applications
Cellular and Cordless Phones
TEMP RANGE
OUT_
PINVOLTAGE PACKAGE
MAX8530EBTxy* -40°C to +85°C 1.5V to 3.3V 6 UCSP
MAX8530ETTxy* -40°C to +85°C 1.5V to 3.3V 6 Thin QFN-EP**
PDAs and Palmtop Computers
MAX8531EBTxy* -40°C to +85°C 1.5V to 3.3V 6 UCSP
Notebook Computers
MAX8531ETTxy* -40°C to +85°C 1.5V to 3.3V 6 Thin QFN-EP
Digital Cameras
*xy = Output voltage code (see the Output Voltage Selector
Guide).
**EP = Exposed pad.
PCMCIA Cards
Wireless LAN Cards
Pin Configurations appear at end of data sheet.
Hand-Held Instruments
Output Voltage Selector Guide appears at end of data
sheet.
Typical Operating Circuit
INPUT
2.5V TO 6.5V
1.5V TO 3.3V
AT 200mA
IN
VI/O
OUT1
CIN
2.2µF
2.2µF
BASEBAND
µP
MAX8530
RESET
RESET
ON
SHDN
VCORE
OUT2
OFF
GND
1µF
1.5V TO 3.3V
AT 150mA
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.
MAX8530/MAX8531
General Description
The MAX8530/MAX8531 offer the benefits of lowdropout voltage and ultra-low power regulation in
subminiaturized UCSP and QFN packages with an integrated 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.
MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with RESET or Low-Noise Output in UCSP or QFN
ABSOLUTE MAXIMUM RATINGS
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
Note 1: For UCSP solder profile information, visit www.maxim-ic.com/1st_pages/UCSP.html.
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
(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)
PARAMETER
Input Voltage
Undervoltage Lockout Threshold
SYMBOL
VUVLO
Output Voltage Accuracy
Maximum Output Current
Current Limit
Ground Current
Dropout Voltage
Line Regulation
IOUT_
ILIM
IQ
MIN
∆VLNR
UNITS
6.5
V
2.42
V
2.15
TA = +25°C, IOUT1 = IOUT2 = 1mA
-1
+1
TA = -40°C to +85°C, IOUT1 = IOUT2 = 1mA
TA = -40°C to +85°C, IOUT1 = 0.1mA to 200mA,
IOUT2 = 0.1mA to 150mA
OUT1
-2
+2
-3
+3
200
OUT2
150
OUT1
210
330
550
OUT2
165
280
500
No load
130
220
IOUT1 = IOUT2 = 100mA
150
%
mA
100
IN = (OUT_ + 0.1V) to 3.8V
100Hz, IOUT = 30mA
2.25
MAX
IN rising, hysteresis is 40mV (typ)
10Hz to 100kHz, COUT = 10µF,
IOUT = 10mA
PSRR
TYP
2.5
VOUT_ - VIN IOUT_ = 100mA (Note 3)
Output Voltage Noise
Ripple Rejection
CONDITIONS
VIN
-0.2
MAX8530
320
MAX8531
40
MAX8530
60
MAX8531
62
mA
µA
200
mV
+0.2
%/V
µVRMS
dB
SHUTDOWN
SHDN Supply Current
SHDN Input Threshold
SHDN Input Bias Current
IOFF
SHDN = 0, TA = +25°C
0.01
SHDN = 0, TA = +85°C
0.1
VIH
Input high voltage
VIL
Input low voltage
ISHDN
SHDN = IN or GND
TSHDN
TJ rising
1
1.6
0.4
TA = +25°C
0.7
TA = +85°C
0.8
100
µA
V
nA
THERMAL PROTECTION
Thermal-Shutdown Temperature
Thermal-Shutdown Hysteresis
2
∆TSHDN
160
°C
10
°C
_______________________________________________________________________________________
Dual Low-Dropout Linear Regulators
with RESET or Low-Noise Output in UCSP or QFN
(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)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
84
87
89
%
RESET OUTPUT (MAX8530 ONLY)
RESET Threshold
Percentage of nominal output, OUT1 falling,
when RESET falls.
VTH
RESET Threshold Hysteresis
0.5
RESET Output Voltage Low
(Open-Drain, Active Low)
VOL
%
IRESET = 500µA, IN = 3.8V
10
20
IRESET = 100µA, IN = 1.2V
10
40
TA = +25°C
0.001
1
TA = +85°C
0.01
RESET Open-Drain
Output Leakage Current
V RESET = 6.5V
RESET Active Timeout Delay
From OUT1 rising to RESET rising.
100
200
mV
µA
360
ms
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.
Typical Operating Characteristics
VOUT1 = 3.3V, VOUT2 = 1.5V, load = 80mA (both output voltages), VIN = 3.8V, COUT_ = 2.2µF, CBP = 0.01µF, CIN = 2.2µF, and TA = +25°C,
unless otherwise noted.
150
NO LOAD
100
50
0
MAX8530 toc02
BOTH OUTPUTS LOADED
160
140
120
100
80
60
1
2
3
4
SUPPLY VOLTAGE (V)
5
6
180
80mA LOAD, BOTH OUTPUTS
160
140
120
100
80
60
40
40
20
20
0
0
0
200
SUPPLY CURRENT (µA)
80mA LOAD, BOTH OUTPUTS
180
SUPPLY CURRENT (µA)
SUPPLY CURRENT (µA)
200
MAX8530 toc01
250
200
SUPPLY CURRENT
vs. TEMPERATURE
SUPPLY CURRENT
vs. LOAD CURRENT
MAX8530 toc03
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
0
10
20
30
40
50
LOAD CURRENT (mA)
60
70
80
-40
-15
10
35
60
85
TEMPERATURE (°C)
_______________________________________________________________________________________
3
MAX8530/MAX8531
ELECTRICAL CHARACTERISTICS (continued)
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 = 2.2µF, and TA = +25°C,
unless otherwise noted.
DROPOUT VOLTAGE
vs. LOAD CURRENT
150
100
80
IOUT1 = 80mA
60
40
MAX8530 toc06
100
0.8
0.6
OUTPUT VOLTAGE (%)
200
1.0
MAX8530 toc05
MAX8530 toc04
120
DROPOUT VOLTAGE (mV)
DROPOUT VOLTAGE (mV)
OUTPUT VOLTAGE ACCURACY
vs. TEMPERATURE
LDO DROPOUT VOLTAGE vs. VOUT
250
0.4
0.2
0
-0.2
-0.4
50
20
-0.6
0
0
-1.0
-0.8
2.7
2.8
2.9
3.0
3.1
3.2
3.3
10
35
60
TEMPERATURE (°C)
PSRR vs. FREQUENCY
CHANNEL-TO-CHANNEL ISOLATION
vs. FREQUENCY (MAX8531)
OUTPUT NOISE SPECTRAL DENSITY
vs. FREQUENCY (MAX8531)
OUT1 = 2.85V
40
30
20
10
70
60
50
40
30
20
0.1
1
10
100
1000
1000
100
10
10
0
0
10,000
0.01
0.1
1
10
100
1000
0.01
0.1
1
10
FREQUENCY (kHz)
FREQUENCY (kHz)
FREQUENCY (kHz)
OUTPUT NOISE (10Hz TO 100kHz)
(MAX8531)
LINE TRANSIENT
MAX8530 toc10
MAX8530 toc11
4.5V
VIN
3.5V
1V/div
500µV/
div
VOUT_
20mV/div
AC-COUPLED
VOUT_
10ms/div
4
85
MAX8530 toc09
100Ω LOAD
NOISE DENSITY (nVRMS/√Hz)
60
80
CHANNEL-TO-CHANNEL ISOLATION (dB)
100Ω LOAD
MAX8530 toc08
VOUT (V)
OUT2 = 2.85V
0.01
-15
-40
LOAD CURRENT (mA)
70
50
2.6
2.5
20 40 60 80 100 120 140 160 180 200
MAX8530 toc07
0
PSRR (dB)
MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with RESET or Low-Noise Output in UCSP or QFN
40µs/div
_______________________________________________________________________________________
100
Dual Low-Dropout Linear Regulators
with RESET or Low-Noise Output in UCSP or QFN
LOAD TRANSIENT
(VIN = 3.8V, ILOAD = 1mA TO 80mA)
LOAD TRANSIENT NEAR DROPOUT
MAX8530 toc13
MAX8530 toc12
20mV/div
AC-COUPLED
VOUT
20mV/div
AC-COUPLED
VOUT
50mA/div
50mA/div
ILOAD
ILOAD
0
0
VIN = VOUT + 0.1V
10µs/div
10µs/div
RESET RESPONSE
(MAX8530)
SHUTDOWN RESPONSE
MAX8530 toc15
MAX8530 toc14
2V/
div
VIN
VOUT-
2V/
div
VOUT-
0
2V/
div
0
0
2V/
div
VRESET
0
1V/
div
VSHDN
0
1ms/div
40ms/div
Pin Description
PIN
MAX8530
(QFN)
MAX8531 MAX8530
(UCSP)
(QFN)
MAX8531
(UCSP)
NAME
OUT2
FUNCTION
1
1
B3
B3
Regulator 2 Output. Guaranteed 150mA output current.
2
2
B2
B2
IN
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.
—
6
—
A3
BP
Regulator Input
Reference Noise Bypass. Connect to a 0.01µF ceramic capacitor for
reduced noise at both outputs.
_______________________________________________________________________________________
5
MAX8530/MAX8531
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 = 2.2µF, and TA = +25°C,
unless otherwise noted.
Dual Low-Dropout Linear Regulators
with RESET or Low-Noise Output in UCSP or QFN
MAX8530/MAX8531
Functional Diagram
IN
SHUTDOWN
AND
POWER-ON
CONTROL
SHDN
MOS
DRIVER
WITH ILIMIT
ERROR
AMP
P
OUT1
THERMAL
SENSOR
1.25V
REF
DELAY
87%
REF
RESET*
MAX8530
MAX8531
N
GND
BP**
LDO2
OUT2
* MAX8530 ONLY
**MAX8531 ONLY
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 reference, 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
6
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 regulation 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
Operating Region and Power Dissipation
The MAX8530/MAX8531s’ maximum power dissipation
depends on the thermal resistance of the case and circuit 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 - TA is 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 surrounding air.
The GND pin of the MAX853_ETT__ (6-lead QFN) performs the dual functions of providing an electrical connection to the ground and channeling heat away.
Connect the GND pin and exposed pad to ground
using a large pad or ground plane.
Internal P-Channel Pass Transistor
The MAX8530/MAX8531 feature two 1Ω P-channel
MOSFET pass transistors. A P-channel MOSFET provides several advantages over similar designs using
PNP pass transistors, including longer battery life. It
requires no base drive, substantially reducing quiescent 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 current whether in dropout, light-load, or heavy-load applications (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 current 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.
Low-Noise Operation (MAX8531)
An external 0.01µF bypass capacitor at BP, in conjunction with an internal resistor, creates a lowpass filter
(see the Typical Application Circuit). The MAX8531
exhibits 40µV RMS output voltage noise with C BP =
0.01µF and C OUT = 2.2µF (see the Output Noise
Spectral Density vs. Frequency graph in the Typical
Operating Characteristics).
MAX8531
Typical Appication Circuit
Thermal-Overload Protection
Thermal-overload protection limits total power dissipation in the MAX8530/MAX8531. 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. The thermal sensor turns the
pass transistor on again after the IC’s junction temperature 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 maximum junction temperature rating of TJ = +150°C.
INPUT
2.5V TO 6.5V
IN
1.5V TO 3.3V
AT 200mA
OUT1
CIN
2.2µF
2.2µF
MAX8531
BP
10nF
ON
SHDN
1.5V TO 3.3V
AT 150mA
OUT2
OFF
1µF
GND
_______________________________________________________________________________________
7
MAX8530/MAX8531
Shutdown
The MAX8530/MAX8531 have a single shutdown control 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.
MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with RESET or Low-Noise Output in UCSP or QFN
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 capacitance 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 optimized 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 batterypowered systems. Power-supply rejection is 60dB at
low frequencies (see the Power-Supply Rejection Ratio
vs. Frequency graph in the Typical Operating Characteristics).
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
8
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-tosource 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
TOP VIEW
GND
SHDN
RESET
(BP*)
A1
A2
A3
TOP VIEW
MAX8530EBT
(MAX8531EBT)
B1
OUT1
B2
B3
IN
OUT2
*MAX8531 ONLY
1
IN
2
OUT1
3
MAX8530ETT
(MAX8531ETT)
6
RESET (BP*)
5
SHDN
4
GND
THIN QFN
UCSP
*MAX8531 ONLY
Output Voltage Selector Guide
PART
OUT2
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
Chip Information
TRANSISTOR COUNT: 1720
PROCESS: BiCMOS
Note: Contact the factory for other output voltages between
1.5V and 3.3V. The minimum order quantity is 25,000 units.
_______________________________________________________________________________________
9
MAX8530/MAX8531
Pin Configurations
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, QFN THIN.EPS
MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with RESET or Low-Noise Output in UCSP or QFN
PACKAGE OUTLINE, 6, 8 & 10L,
QFN THIN (DUAL), EXPOSED PAD, 3x3x0.80 mm
21-0137
10
______________________________________________________________________________________
C
Dual Low-Dropout Linear Regulators
with RESET or Low-Noise Output in UCSP or QFN
COMMON DIMENSIONS
SYMBOL
A
MIN.
MAX.
0.70
0.80
D
2.90
3.10
E
2.90
3.10
A1
0.00
0.05
L
k
0.20
0.40
0.25 MIN
A2
0.20 REF.
PACKAGE VARIATIONS
PKG. CODE
N
D2
E2
e
JEDEC SPEC
b
T633-1
6
1.50–0.10
2.30–0.10
0.95 BSC
MO229 / WEEA
0.40–0.05
1.90 REF
T833-1
8
1.50–0.10
2.30–0.10
0.65 BSC
MO229 / WEEC
0.30–0.05
1.95 REF
T1033-1
10
1.50–0.10
2.30–0.10
0.50 BSC
MO229 / WEED-3
0.25–0.05
2.00 REF
[(N/2)-1] x e
PACKAGE OUTLINE, 6, 8 & 10L,
QFN THIN (DUAL), EXPOSED PAD, 3x3x0.80 mm
21-0137
C
______________________________________________________________________________________
11
MAX8530/MAX8531
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.)
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
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
© 2003 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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