MAX1589EZT300+ [MAXIM]
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| 型号： | MAX1589EZT300+ |
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MAXIM INTEGRATED PRODUCTS |
| 描述： | 暂无描述 线性稳压器IC 调节器 电源电路 光电二极管 输出元件 信息通信管理 |
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19-3048; Rev 0; 10/03
Low-Input-Voltage, 500mA LDO Regulator
RESET
with
in SOT and TDFN
General Description
Features
o Low 1.62V Minimum Input Voltage
o Guaranteed 500mA Output Current
The MAX1589 low-dropout linear regulator operates
from a +1.62V to +3.6V supply and delivers a guaran-
teed 500mA continuous load current with a low 175mV
dropout. The high-accuracy ( 0.5ꢀ% output voltage is
preset to internally trimmed voltages from +0.75V to
+3.0V. An active-low, open-drain reset output remains
asserted for at least 70ms after the output voltage reach-
es regulation. This device is offered in 6-pin thin SOT23
and 6-pin 3mm x 3mm thin DFN packages.
o
0.5ꢀ Initial Accuracy
o Low 175mV Dropout at 500mA Load
o 70ms RESET Output Flag
o Supply Current Independent of Load and Dropout
Voltage
o Logic-Controlled Shutdown
o Thermal-Overload and Short-Circuit Protection
o Preset Output Voltages (0.75V, 1.0V, 1.3V, 1.5V,
An internal PMOS pass transistor maintains low supply
current, independent of load and dropout voltage, making
the MAX1589 ideal for portable battery-powered equip-
ment such as personal digital assistants (PDAs%, digital
still cameras, cell phones, cordless phones, and note-
book computers. Other features include logic-controlled
shutdown, short-circuit protection, and thermal-
overload protection.
1.8V, 2.5V, and 3.0V)
o Tiny 6-Pin Thin SOT23 Package (<1.1mm High)
o Thin 6-Pin TDFN Package (<0.8mm High)
Ordering Information
PART*
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
6 Thin SOT23-6
6 TDFN
MAX1589EZT_ _ _-T
MAX1589ETA_ _ _
*Insert the desired three-digit suffix (see the Selector Guide) into
the blanks to complete the part number. Contact the factory for
other output voltages.
Applications
Selector Guide
Notebook Computers
Cellular and PCS Telephones
Personal Digital Assistants (PDAs%
Hand-Held Computers
Digital Still Cameras
MAX1589
TOP MARK
V
OUT
(V)
SUFFIX
SOT
TDFN
AFJ
0.75
1.00
1.30
1.50
1.80
2.50
3.00
075
100
130
150
180
250
300
AAAT
AAAU
AAAV
AAAW
AAAX
AAAY
AAAZ
AFK
AFL
PCMCIA Cards
CD and MP3 Players
AFM
AFN
AFO
AFP
Typical Operating Circuit
Pin Configurations
TOP VIEW
INPUT
OUTPUT
1.62V TO 3.6V
0.75V TO 3.0V
500mA
IN
OUT
C
C
OUT
4.7µF
IN
1µF
1
2
3
6
5
4
IN
GND
OUT
I.C.
OUT
I.C.
1
2
3
6
5
4
IN
LOGIC
SUPPLY
MAX1589
SHDN
GND
MAX1589
MAX1589
100kΩ
RESET
ON
SHDN
TO µC
RESET
SHDN
RESET
OFF
TDFN
3mm x 3mm
GND
THIN SOT23
________________________________________________________________ Maxim Integrated Products
1
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.
Low-Input-Voltage, 500mA LDO Regulator
RESET
with
in SOT and TDFN
ABSOLUTE MAXIMUM RATINGS
IN, SHDN, RESET to GND.....................................-0.3V to +4.0V
OUT to GND ................................................-0.3V to (V + 0.3V%
Output Short-Circuit Duration.....................................Continuous
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature..................................................... +150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s% .................................+300°C
IN
Continuous Power Dissipation (T = +70°C%
A
6-Pin Thin SOT23 (derate 9.1mW/°C above +70°C%....727mW
6-Pin TDFN (derate 24.4mW/°C above +70°C% .........1951mW
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
(V = (V
+ 0.5V% or V = 1.8V, whichever is greater; SHDN = IN, C = 1µF, C
= 4.7µF, T = -40°C to +85°C, unless other-
OUT A
IN
OUT
IN
IN
wise noted. Typical values are at T = +25°C.% (Note 1%
A
PARAMETER
Input Voltage
SYMBOL
CONDITIONS
MIN
1.62
1.30
-0.5
TYP
MAX
3.60
1.60
+0.5
UNITS
V
V
V
IN
Input Undervoltage Lockout
V
V
rising (180mV typical hysteresis)
UVLO
IN
I
= 150mA, T = +25°C
OUT
A
Output Voltage Accuracy
%
I
V
= 1mA to 500mA,
OUT
-1.5
+1.5
= (V
+ 0.5V) to +3.6V
OUT
IN
Maximum Output Current
Current Limit
I
Continuous
= 96% of nominal value
500
550
mA
RMS
OUT
I
V
850
70
1150
140
mA
LIM
OUT
No load
= 500mA
Ground Current
I
µA
I
90
Q
OUT
Dropout (Note 2)
70
Dropout Voltage
Load Regulation
Line Regulation
Output Noise
PSRR
V
- V
I
I
= 500mA, V ≥ 1.8V (Note 2)
OUT
175
0.02
350
0.5
mV
%
IN
OUT
OUT
OUT
∆V
= 1mA to 500mA
+ 0.5V) to +3.6V, I
LDR
∆V
V
= (V
= 100mA
-0.15 +0.01 +0.15
%/V
LNR
IN
OUT
OUT
10Hz to 100kHz, I
= 10mA
86
70
µV
RMS
OUT
f < 1kHz, I
= 10mA
dB
OUT
SHUTDOWN
T
T
= +25°C
= +85°C
0.001
0.01
1
A
A
Shutdown Supply Current
SHDN Input Logic Levels
SHDN Input Bias Current
I
SHDN = GND
µA
V
OFF
V
V
V
= 1.62V to 3.6V
1.4
IH
IN
IN
V
= 1.62V to 3.6V
0.6
IL
T
T
= +25°C
= +85°C
1
5
300
A
A
I
V
= 0 or 3.6V
nA
µs
SHDN
S H DN
Turn-On Delay
From SHDN high to OUT high, V
= 1.5V
90
OUT
RESET OUTPUT
Reset Threshold Accuracy
V
falling (1.7% typical hysteresis)
80
82.5
1.5
3
85
%V
OUT
OUT
I
= 100µA
100
100
RESET
RESET Output Low Voltage
V
mV
OL
V
= +1.0V, I
= 100µA
RESET
IN
2
_______________________________________________________________________________________
Low-Input-Voltage, 500mA LDO Regulator
RESET
with
in SOT and TDFN
ELECTRICAL CHARACTERISTICS (continued)
(V = (V
+ 0.5V) or V = 1.8V, whichever is greater; SHDN = IN, C = 1µF, C
= 4.7µF, T = -40°C to +85°C, unless other-
OUT A
IN
OUT
IN
IN
wise noted. Typical values are at T = +25°C.) (Note 1)
A
PARAMETER
RESET Output High
SYMBOL
CONDITIONS
MIN
TYP
0.001
0.01
100
MAX
UNITS
µA
T
A
T
A
= +25°C
1
V
= 3.6V,
RESET
I
OH
Leakage Current
RESET not asserted
= +85°C
Reset Delay
t
From V
high to RESET rising
OUT
70
160
ms
RP
THERMAL PROTECTION
Thermal-Shutdown Temperature
Thermal-Shutdown Hysteresis
T
+165
15
°C
°C
SHDN
∆T
SHDN
Note 1: Limits are 100% production tested at T = +25°C. Limits over the operating temperature range are guaranteed by design.
A
Note 2: The dropout voltage is defined as V - V
, when V
is 4% lower than the value of V
when V = V
+ 0.5V.
OUT
IN
OUT
OUT
IN
OUT
Typical Operating Characteristics
(V = (V
IN
+ 0.5V) or 1.8V, whichever is greater; SHDN = IN, C = 1µF, C
= 4.7µF, T = +25°C, unless otherwise noted.)
OUT
IN
OUT
A
OUTPUT VOLTAGE ACCURACY
OUTPUT VOLTAGE ACCURACY
vs. INPUT VOLTAGE
OUTPUT VOLTAGE ACCURACY
vs. LOAD CURRENT
vs. TEMPERATURE
1.5
0.50
0.25
0
0.2
0.1
0
V
= +1.5V
V
= +1.5V
OUT
OUT
1.0
0.5
0
I
= 0mA
OUT
I
= 0mA, 100mA, 500mA
OUT
V
= +1.5V
OUT
I
= 100mA
OUT
-0.5
-1.0
-1.5
V
= +3.0V
OUT
-0.25
-0.50
-0.1
I
= 500mA
OUT
V
= +0.75V
OUT
-0.2
0
-40
-15
10
35
60
85
1.4
1.8
2.2
2.6
3.0
3.4
100
200
300
400
500
TEMPERATURE (°C)
INPUT VOLTAGE (V)
LOAD CURRENT (mA)
GROUND-PIN CURRENT
vs. TEMPERATURE
GROUND-PIN CURRENT
vs. INPUT VOLTAGE
GROUND-PIN CURRENT
vs. LOAD CURRENT
100
90
80
70
60
50
120
100
80
60
40
20
0
120
110
100
90
I
= 100mA
I
OUT
V
= +1.5V
OUT
V
= +3.0V
= 500mA
OUT
OUT
I
= 1mA TO 500mA
OUT
V
= +1.5V
OUT
V
= +0.75V
OUT
I
= 0mA
OUT
80
I
= 0mA
OUT
70
V
= +1.5V
3.2
OUT
60
-40
-15
10
35
60
85
1.2
1.6
2.0
2.4
2.8
3.6
0.01
0.1
1
10
100
1000
TEMPERATURE (°C)
INPUT VOLTAGE (V)
LOAD CURRENT (mA)
_______________________________________________________________________________________
3
Low-Input-Voltage, 500mA LDO Regulator
RESET
with
in SOT and TDFN
Typical Operating Characteristics (continued)
(V = (V
+ 0.5V) or 1.8V, whichever is greater; SHDN = IN, C = 1µF, C
= 4.7µF, T = +25°C, unless otherwise noted.)
IN
OUT
IN
OUT
A
DROPOUT VOLTAGE
vs. LOAD CURRENT
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
200
160
120
80
80
V
= +1.5V
OUT
70
60
50
40
30
20
10
0
V
= +0.75V
OUT
V
= +3.0V
OUT
V
= +1.8V
OUT
V
= +3.0V
OUT
40
I
= 10mA
1
OUT
0
0
100
200
300
400
500
0.1
10
FREQUENCY (kHz)
100
1000
LOAD CURRENT (mA)
LINE-TRANSIENT RESPONSE
NEAR DROPOUT
LINE-TRANSIENT RESPONSE
MAX1589 toc09
MAX1589 toc10
2.5V
1.8V
4V
V
V
IN
500mV/div
IN
500mV/div
3.5V
V
1.5V
OUT
V
1.5V
OUT
I
= 100mA
= 1.5V
LOAD
I
= 100mA
= 1.5V
OUT
10mV/div
AC-COUPLED
LOAD
V
10mV/div
AC-COUPLED
V
OUT
40µs/div
40µs/div
LOAD-TRANSIENT RESPONSE
LOAD-TRANSIENT RESPONSE
MAX1589 toc11
MAX1589 toc12
200mA
OUT
20mA
500mA
OUT
100mA
200mA/div
I
I
500mA/div
20mV/div
AC-COUPLED
0
50mV/div
AC-COUPLED
V
V
OUT
OUT
20µs/div
20µs/div
V
= 1.8V
OUT
V = 3.6V
IN
OUT
IN
V
= 1.5V
V
= 1.5V
4
_______________________________________________________________________________________
Low-Input-Voltage, 500mA LDO Regulator
RESET
with
in SOT and TDFN
Typical Operating Characteristics (continued)
(V = (V
+ 0.5V) or 1.8V, whichever is greater; SHDN = IN, C = 1µF, C
= 4.7µF, T = +25°C, unless otherwise noted.)
IN
OUT
IN
OUT
A
SHUTDOWN RESPONSE
SHUTDOWN/RESET RESPONSE
MAX1589 toc13
MAX1589 toc14
R = 25Ω
OUT
R = 25Ω
OUT
L
L
V
= 1.5V
V
= 1.5V
1V/div
1V/div
V
V
SHDN
SHDN
0
0
0
0
0
V
OUT
1V/div
1V/div
V
OUT
V
RESET
500mV/div
100µs/div
40ms/div
LINE/RESET RESPONSE
MAX1589 toc15
R = 25Ω
OUT
L
V
= 1.5V
2V/div
1V/div
1V/div
V
IN
0
0
0
V
OUT
V
RESET
200ms/div
_______________________________________________________________________________________
5
Low-Input-Voltage, 500mA LDO Regulator
RESET
with
in SOT and TDFN
Pin Description
PART
NAME
FUNCTION
SOT23
TDFN
Regulator Input. Supply voltage can range from +1.62V to +3.6V. Bypass IN with at least a
1µF ceramic capacitor to GND (see the Capacitor Selection and Regulator Stability
section).
1
6
IN
Ground. GND also functions as a heatsink. Solder GND to a large pad or circuit-board
ground plane to maximize SOT23 power dissipation.
2
—
3
—
4
GND
GND
Ground
Active-Low Shutdown Input. A logic low reduces supply current to below 1µA. Connect to
IN or logic high for normal operation.
5
SHDN
Active-Low, Open-Drain Reset Output. RESET rises 100ms after the output has achieved
4
3
RESET
regulation. RESET falls immediately if V
drops below 82.5% of its nominal voltage, or if
OUT
the MAX1589 is shut down.
5
6
2
1
I.C.
Internally Connected. Leave floating or connect to GND.
Regulator Output. Sources up to 500mA. Bypass with a 4.7µF low-ESR ceramic capacitor
to GND.
OUT
Exposed
Pad
Ground. EP also functions as a heatsink. Solder EP to a large pad or circuit-board ground
plane to maximize TDFN power dissipation.
—
EP
MAX1589 does not suffer from these problems and
consumes only 90µA (typ) of quiescent current under
heavy loads, as well as in dropout.
Detailed Description
The MAX1589 is a low-dropout, low-quiescent-current,
high-accuracy linear regulator designed primarily for
battery-powered applications. The device supplies
loads up to 500mA and is available with preset output
voltages from +0.75V to +3.0V. As illustrated in Figure 1,
the MAX1589 contains a reference, an error amplifier, a
P-channel pass transistor, an internal feedback voltage-
divider, and a power-good comparator.
Shutdown
Pull SHDN low to enter shutdown. During shutdown, the
output is disconnected from the input, an internal 1.5kΩ
resistor pulls OUT to GND, RESET is actively pulled
low, and supply current drops below 1µA.
RESET
Output
The error amplifier compares the 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 MAX1589’s microprocessor (µP) supervisory cir-
cuitry asserts a guaranteed logic-low reset during
power-up, power-down, and brownout conditions down
to +1V. RESET asserts when V
is below the reset
OUT
threshold and remains asserted for at least 70ms (t
)
RP
after V
rises above the reset threshold.
OUT
Current Limit
The MAX1589 monitors and controls the pass transis-
Internal P-Channel Pass Transistor
tor’s gate voltage, limiting the output current to 850mA
The MAX1589 features a 0.33Ω (R
) P-channel
DS(ON)
(typ). If the output current exceeds I , the MAX1589
LIM
MOSFET pass transistor. Unlike similar designs using
PNP pass transistors, P-channel MOSFETs require no
base drive, which reduces quiescent current. PNP-
based regulators also waste considerable current in
dropout when the pass transistor saturates and use
high base-drive currents under large loads. The
output voltage drops.
Thermal-Overload Protection
Thermal-overload protection limits total power dissipa-
tion in the MAX1589. When the junction temperature
exceeds +165°C, a thermal sensor turns off the pass
6
_______________________________________________________________________________________
Low-Input-Voltage, 500mA LDO Regulator
RESET
with
in SOT and TDFN
IN
SHDN
MOS DRIVER
P
ERROR
AMP
SHUTDOWN
LOGIC
WITH I
LIMIT
OUT
MAX1589
POWER-GOOD
COMPARATOR
RESET
82.5%
REF
THERMAL
SENSOR
REF
100ms
TIMER
GND
Figure 1. Functional Diagram
transistor, allowing the IC to cool. The thermal sensor
turns the pass transistor on again after the junction tem-
perature cools by 15°C, resulting in a pulsed output
during continuous thermal-overload conditions.
Thermal-overload protection safeguards the MAX1589
in the event of fault conditions. For continuous opera-
tion, do not exceed the absolute maximum junction-
temperature rating of +150°C.
41°C/W for the 3mm x 3mm TDFN package, and
110°C/W for the 6-pin thin SOT23 package. For best
heatsinking, expand the copper connected to GND, or
the exposed paddle.
The MAX1589 delivers up to 500mA and operates with
an input voltage up to +3.6V. However, when using the
6-pin SOT23 version, high output currents can only be
sustained when the input-output differential voltage is
low, as shown in Figure 2.
Operating Region and Power Dissipation
The MAX1589’s 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
The maximum allowed power dissipation for the 6-pin
TDFN is 1.951W at T = +70°C. Figure 3 shows that the
A
maximum input-output differential voltage is not limited
by the TDFN package power rating.
power dissipated in the device is P = I
OUT
✕ (V
-
IN
OUT
Applications Information
V
). The maximum allowed power dissipation is:
Capacitor Selection and
Regulator Stability
P
MAX
= (T
- T ) / (θ + θ
)
CA
J(MAX)
A
JC
Capacitors are required at the MAX1589’s input and
output for stable operation over the full temperature
range and with load currents up to 500mA. Connect a
1µF ceramic capacitor between IN and GND and a
4.7µF low-ESR ceramic capacitor between OUT and
where T
- T is the temperature difference between
A
J(MAX)
the MAX1589 die junction and the surrounding air, θ is
JC
the thermal resistance of the junction to the case, and
θ
is the thermal resistance from the case through the
PC board, copper traces, and other materials to the sur-
rounding air. Typical thermal resistance (θ + θ ) for a
CA
GND. The input capacitor (C ) lowers the source
IN
JC
JA
impedance of the input supply. Use larger output
device mounted to a 1in square, 1oz copper pad is
_______________________________________________________________________________________
7
Low-Input-Voltage, 500mA LDO Regulator
RESET
with
in SOT and TDFN
MAXIMUM OUTPUT CURRENT
vs. INPUT VOLTAGE
(POWER DISSIPATION LIMIT)
MAXIMUM OUTPUT CURRENT
vs. INPUT VOLTAGE
(POWER DISSIPATION LIMIT)
600
500
400
300
200
100
0
600
500
400
300
200
100
0
T
= +85°C
T
T
= +85°C
A
A
A
= +70°C
MAXIMUM RECOMMENDED
MAXIMUM RECOMMENDED
OUTPUT CURRENT 6-PIN TDFN
OUTPUT CURRENT 6-PIN SOT23
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0.5
1.0
1.5
2.0
2.5
3.0
(V - V ) (V)
(V - V ) (V)
IN
OUT
IN
OUT
Figure 2. Power Operating Regions for 6-Pin SOT23: Maximum
Output Current vs. Input Voltage
Figure 3. Power Operating Region for 6-Pin TDFN: Maximum
Output Current vs. Input Voltage
capacitors to reduce noise and improve load-transient
response, stability, and power-supply rejection.
the output response: a near-zero DC shift from the out-
put impedance due to the load-current change, and the
transient response. A typical transient response for a
step change in the load current from 100mA to 500mA
is 35mV. Increasing the output capacitor’s value and
decreasing the ESR attenuates the overshoot.
The output capacitor’s equivalent series resistance
(ESR) affects stability and output noise. Use output
capacitors with an ESR of 30mΩ or less to ensure sta-
bility and optimize transient response. Surface-mount
ceramic capacitors have very low ESR and are com-
Input-Output (Dropout) Voltage
A regulator’s minimum input-output voltage difference
(dropout voltage) determines the lowest usable supply
voltage. In battery-powered systems, this determines
the useful end-of-life battery voltage. Because the
MAX1589 uses a P-channel MOSFET pass transistor, its
dropout voltage is a function of drain-to-source on-resis-
monly available in values up to 10µF. Connect C and
IN
C
as close to the MAX1589 as possible to minimize
OUT
the impact of PC board trace inductance.
Noise, PSRR, and Transient Response
The MAX1589 is designed to operate with low dropout
voltages and low quiescent currents in battery-powered
systems, while still maintaining good noise, transient
response, and AC rejection. See the Typical Operating
Characteristics for a plot of Power-Supply Rejection
Ratio (PSRR) vs. Frequency. 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.
tance (R
= 0.33Ω) multiplied by the load current
DS(ON)
(see the Typical Operating Characteristics):
= V - V = 0.33Ω ✕ I
OUT
V
DROPOUT
IN
OUT
The MAX1589 ground current reduces to 70µA in dropout.
Chip Information
TRANSISTOR COUNT: 2556
The MAX1589 load-transient response (see the Typical
Operating Characteristics) shows two components of
PROCESS: BiCMOS
8
_______________________________________________________________________________________
Low-Input-Voltage, 500mA LDO Regulator
RESET
with
in SOT and TDFN
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.)
_______________________________________________________________________________________
9
Low-Input-Voltage, 500mA LDO Regulator
RESET
with
in SOT and TDFN
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.)
10 ______________________________________________________________________________________
Low-Input-Voltage, 500mA LDO Regulator
RESET
with
in SOT and TDFN
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.)
L
A
D2
D
A2
PIN 1 ID
1
N
1
C0.35
b
[(N/2)-1] x e
REF.
E
E2
PIN 1
INDEX
AREA
DETAIL A
e
k
A1
C
L
C
L
L
L
e
e
A
DALLAS
SEMICONDUCTOR
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, 6, 8 & 10L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
APPROVAL
DOCUMENT CONTROL NO.
REV.
NUMBER OF LEADS SHOWN ARE FOR REFERENCE ONLY
1
2
21-0137
D
______________________________________________________________________________________ 11
Low-Input-Voltage, 500mA LDO Regulator
RESET
with
in SOT and TDFN
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.
0.70
2.90
2.90
0.00
0.20
MAX.
0.80
3.10
3.10
0.05
0.40
A
D
E
A1
L
k
0.25 MIN.
0.20 REF.
A2
PACKAGE VARIATIONS
PKG. CODE
T633-1
N
6
D2
E2
e
JEDEC SPEC
MO229 / WEEA
MO229 / WEEC
b
[(N/2)-1] x e
1.90 REF
1.95 REF
2.00 REF
1.50–0.10 2.30–0.10 0.95 BSC
1.50–0.10 2.30–0.10 0.65 BSC
0.40–0.05
0.30–0.05
T833-1
8
T1033-1
10
1.50–0.10 2.30–0.10 0.50 BSC MO229 / WEED-3 0.25–0.05
DALLAS
SEMICONDUCTOR
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, 6, 8 & 10L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
APPROVAL
DOCUMENT CONTROL NO.
REV.
2
2
21-0137
D
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.
相关型号：
MAX1589EZT300+T
Fixed Positive LDO Regulator, 3V, 0.35V Dropout, BICMOS, PDSO6, SC-74, MO-193, SOT-23, 6 PIN
MAXIM
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