General Description
The MAX6765–MAX6774B are low-quiescent-current,
high-voltage linear regulators that operate from 4V to 72V
and deliver up to 100mA of load current. These low-power
devices consume only 31µA of quiescent current, mak-
ing them ideal for always-on automotive modules. These
devices are offered with fixed standard output options of
5.0V, 3.3V, 2.5V, and 1.8V, or can be adjusted from 1.8V
to 11V with two external resistors.
The MAX6765–MAX6774B feature a push-pull or open-
drain, active-low RESET output with either fixed or adjustable
thresholds. Whenever the regulator’s output falls below
the reset threshold, the RESET output asserts and
remains asserted for at least the minimum reset timeout
period after the output voltage exceeds its threshold. The
minimum reset timeout period is offered with fixed values
from 75µs to 200ms or can be adjusted externally with a
small capacitor.
These devices provide three regulator enable modes
to accommodate several power-on schemes. The
MAX6765/MAX6766/MAX6769/MAX6770/MAX6773/
MAX6773B/MAX6774/MAX6774B feature a single tradi-
tional enable input (ENABLE) to turn on and off the regu-
lator. The MAX6771/MAX6772 provide dual enable inputs
(ENABLE1 and ENABLE2) to turn on and off the regulator
either through an ignition switch or a bus transceiver. The
MAX6767/MAX6768 provide a hold input (HOLD) in addi-
tion to the enable input to allow for the implementation of a
self-holding circuit without requiring external components.
Setting HOLD low after enabling the regulator forces the
regulator to remain on even if ENABLE is subsequently
set low. Releasing HOLD shuts down the regulator.
The MAX6773/MAX6773B/MAX6774/MAX6774B also
include a watchdog input that monitors a pulse train from
the microprocessor (µP) and generates a reset pulse if
the watchdog input remains high or low for a duration
longer than the 1.6s (typ) (MAX6773/MAX6774) or 50ms
(typ) (MAX6773B/MAX6774B) watchdog timeout period.
The MAX6765–MAX6774B are available in a small, ther-
mally enhanced 3mm x 3mm TDFN package that can
dissipate up to 1.951W, thereby supporting continuous
regulator operation during high ambient temperatures,
high battery voltage, and high load-current conditions.
The MAX6765–MAX6774B are fully specified for a -40°C
to +125°C operating temperature range.
Applications
●Automotive
●Industrial
●Telecom
Features
● Low 31μA Quiescent Current
●4V to 72V Wide Input Voltage Range
●100mA Output Current Capability
●Dropout Voltage of 620mV with 5V Output at 100mA
●Fixed Output-Voltage Options: 5V, 3.3V, 2.5V, and
1.8V
●Watchdog Timer Option (1.6s (MAX6773/MAX6774)
and 50ms (MAX6773B/MAX6774B))
●Adjustable Output Voltages from 1.8V to 11V
●Open-Drain or Push-Pull RESET Output
●Fixed or Capacitor-Adjustable Reset Timeouts
●Small, Thermally Enhanced 1.9W, 3mm x 3mm
TDFN Package
●Overtemperature and Short-Circuit Protection
●Fully Specified from -40°C to +125°C
● AEC-Q100 qualified (MAX6765TT_D_/V+,
MAX6767TA_D_/V+, MAX6769TA_D_/V+,
MAX6773TA_D_/V+ , MAX6773BTA_D_/V+ only)
Ordering Information continued at end of data sheet.
Typical Application Circuit and Selector Guide appear at
end of data sheet.
Pin Configurations continued at end of data sheet.
19-0657; Rev 9; 8/17
The first “_” is a placeholder for the voltage output and reset
threshold. The 2nd “_” designates the fixed reset-timeout option.
See Tables 1 and 2 for details. For example, the MAX6765TTLD4
has a 5V output, a reset threshold of 4.65V, and a 200ms typical
reset timeout.
+Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
*EP = Exposed pad.
For tape-and-reel orders add a “T” after the “+” symbol to com-
plete the part number. Tape-and-reel orders are available in
2.5k increments. Nonstandard versions require a 10k minimum
order quantity.
PART TEMP
RANGE
PIN-
PACKAGE
MAX6765TT_D_+ -40°C to +125°C 6 TDFN-EP*
MAX6765TT_D_/V+ -40°C to +125°C 6 TDFN-EP*
Pin Congurations
Ordering Information
1
+
2 3
EP
654
ENABLE
GND
IN
RESET
TIMEOUT
OUT
MAX6765
MAX6766
TDFN
TOP VIEW
MAX6765–MAX6774 Automotive Micropower Linear Regulators
with Supervisor
EVALUATION KIT AVAILABLE
(All pins referenced to GND, unless otherwise noted.)
VIN .........................................................................-0.3V to +80V
OUT .............................................. -0.3V to min (12V, IN + 0.3V)
ENABLE, ENABLE1, ENABLE2 ...................-0.3V to (IN + 0.3V)
RESET (open-drain output), TIMEOUT, WDI,
RESETIN, SET ....................................................-0.3V to 12V
RESET (push-pull output), HOLD ............-0.3V to (OUT + 0.3V)
Maximum Current (all pins except IN and OUT) ................ 50mA
Continuous Power Dissipation (TA = +70°C)
6-Pin TDFN 3mm x 3mm
(derate 23.8mW/°C above +70°C) .........................1904.8mW
8-Pin TDFN 3mm x 3mm
(derate 24.4mW/°C above +70°C) .........................1951.2mW
Operating Temperature Range ......................... -40°C to +125°C
Junction Temperature ...................................................... +150°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) ....................................... +260°C
(VIN = 14V, CIN = 0.1μF, COUT = 10μF, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = TJ = +25°C.)
(Note 1)
Dual Mode is a trademark of Maxim Integrated Products, Inc.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range VIN 4 72 V
Supply Current
(MAX6765–MAX6772) (Note 2)
ILOAD = 0A 31 45
µA
ILOAD = 50mA 35 50
ILOAD = 100mA, VIN = 14V 37 55
ILOAD = 0A, VIN = 42V 35 50
ILOAD = 10mA, VIN = 42V 37 55
Supply Current
(MAX6773/MAX6773B/
MAX6774/MAX6774B)
(Note 2)
ILOAD = 0A 38 50
µA
ILOAD = 50mA 42 55
ILOAD = 100mA 44 60
ILOAD = 0A, VIN = 42V 42 55
ILOAD = 10mA, VIN = 42V 44 60
Shutdown Supply Current ISHDN ENABLE , ENABLE1, ENABLE2 = GND 3.3 7 µA
Output Voltage VOUT
L/M, ILOAD = 1mA 4.925 5 5.075
V
L/M, 1mA ≤ ILOAD ≤ 100mA, VIN = 11V 4.850 5 5.150
T/S, ILOAD = 1mA 3.251 3.3 3.350
T/S, 1mA ≤ ILOAD ≤ 100mA, VIN = 9.3V 3.201 3.3 3.399
Z/Y, ILOAD = 1mA 2.463 2.5 2.538
Z/Y, 1mA ≤ ILOAD ≤ 100mA, VIN = 8.5V 2.425 2.5 2.575
W/V, ILOAD = 1mA 1.773 1.8 1.827
W/V, 1mA ≤ ILOAD ≤ 100mA, VIN = 7.8V 1.746 1.8 1.854
Adjustable Output Voltage Range VOUT 1.8 11.0 V
SET Threshold Voltage
(MAX6767–MAX6774) VSET ILOAD = 1mA 1.20 1.233 1.26 V
Dual Mode™ SET Threshold SET rising 116 mV
SET falling 58
Absolute Maximum Ratings
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
MAX6765–MAX6774 Automotive Micropower Linear Regulators
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(VIN = 14V, CIN = 0.1μF, COUT = 10μF, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = TJ = +25°C.)
(Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SET Input Current
(MAX6767–MAX6774) ISET VSET = 1.5V, VIN = 11V -100 +100 nA
Dropout Voltage (Note 3) ΔVDO
L/M, 5V output option, ILOAD = 10mA 60 130
mV
L/M, 5V output option, ILOAD = 50mA 300 630
L/M, 5V output option, ILOAD = 100mA 620 1200
T/S, 3.3V output option, ILOAD = 100mA 866 1600
Guaranteed Output Current
(Note 4) 100 mA
Output Current Limit Output shorted to GND, VIN = 14V 150 250 mA
Thermal-Shutdown Temperature 160 °C
Thermal-Shutdown Hysteresis 20 °C
Line Regulation 6.5V ≤ VIN ≤ 72V, ILOAD = 1mA 1 %
Load Regulation
(MAX6767–MAX6774)
IOUT = 1mA to 100mA,
VIN = VOUT(NOM) + 6V 1.5 %
Power-Supply Rejection Ratio PSRR ILOAD = 10mA, fIN = 100Hz, 500mVP-P 70 dB
Startup Response Time tSTART
From ENABLE high to OUT,
ILOAD = 100mA 180 µs
Output Overvoltage Protection
Threshold OVTH ISINK = 1mA (from OUT) 1.07 x
VOUT
1.1 x
VOUT
1.13 x
VOUT
V
Output Overvoltage Protection
Maximum Sink Current OUT = OUT(NOM) x 1.15 5 10 mA
LOGIC INPUT (ENABLE, ENABLE1, ENABLE2, HOLD)
Input Low Voltage VIL ENABLE, ENABLE1, ENABLE2 0.4 V
Input High Voltage VIH ENABLE, ENABLE1, ENABLE2 1.4 V
ENABLE, ENABLE1, ENABLE2
Input Pulldown Current
ENABLE, ENABLE1, ENABLE2 are
internally pulled down to GND 0.6 µA
HOLD Input Threshold Voltage
VIL 1.8V ≤ VOUT ≤ 11V 0.4
V
VIH 1.8V ≤ VOUT ≤ 11V OUT -
0.4
HOLD Input Pullup Current HOLD is internally pulled up to OUT 1.8 µA
RESET OUTPUT
RESET Threshold SET = GND,
RESET falling
L 4.500 4.625 4.750
V
M 4.250 4.375 4.500
T 2.970 3.053 3.135
S 2.805 2.888 2.970
Z 2.250 2.313 2.375
Y 2.125 2.188 2.250
W 1.620 1.665 1.710
V 1.530 1.575 1.620
Electrical Characteristics (continued)
MAX6765–MAX6774 Automotive Micropower Linear Regulators
with Supervisor
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(VIN = 14V, CIN = 0.1μF, COUT = 10μF, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = TJ = +25°C.)
(Note 1)
Note 1: Production tested at TA = +25°C. Overtemperature limits are guaranteed by design.
Note 2: Device tested at internally set voltage.
Note 3: Dropout voltage for L/M versions is defined as (VIN - VOUT) when VOUT equals 98% of the nominal value of VOUT when
VIN = 11V. For T/S versions, dropout voltage is defined as (VIN - VOUT) when VOUT equals 98% of the nominal value of
VOUT when VIN = 9.3V.
Note 4: Observe the absolute maximum power dissipation limits.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RESET Threshold (Adjustable
Output Voltage)
L/T/Z/W, SET = resistive divider, RESET
falling
VOUT x
0.9
VOUT
x 0.925
VOUT
x 0.950 V
M/S/Y/V, SET = resistive divider, RESET
falling
VOUT
x 0.85
VOUT
x 0.875
VOUT
x 0.900
RESETIN Input Current VRESETIN = VGND or 12V -100 +100 nA
RESETIN Threshold
VTH = 87.5% of VSET (M/S/Y/V),
RESET falling 1.057 1.085 1.112
V
VTH = 92.5% of VSET (L/T/Z/W),
RESET falling 1.118 1.147 1.176
OUT to RESET Delay VOUT falling 0.3 µs
RESETIN To RESET Delay RESETIN falling 35 µs
RESET Timeout Period
(TIMEOUT Connected to OUT) VOUT rising
D0 75 µs
D1 2.187 3.125 4.063
ms
D2 8.75 12.5 16.25
D3 35 50 65
D4 140 200 260
TIMEOUT Ramp Current 800 1000 1200 nA
TIMEOUT Ramp Threshold L/M/T/S options 1.160 1.220 1.259 V
V/W/Y/Z options 1.060 1.170 1.242
RESET Output-Voltage Low
(Open Drain or Push-Pull) VOL
VOUT ≥ 1.8V, ISINK = 50µA,
RESET asserted 0.3
V
VOUT ≥ 1.8V, ISINK = 3.2mA,
RESET asserted 0.4
RESET Output-Voltage High
(Push-Pull) VOH
VOUT ≥ 1.8V, ISOURCE = 250µA,
RESET not asserted
0.8 x
VOUT
V
RESET Open-Drain Leakage
Current RESET not asserted, RESET = 12V 100 nA
Watchdog Minimum Input Pulse tWDI 1.8V ≤ VOUT ≤ 11V 1 µs
Watchdog Input Low Voltage VIL 1.8V ≤ VOUT ≤ 11V 0.4 V
Watchdog Input High Voltage VIH 1.8V ≤ VOUT ≤ 11V VOUT - 0.4V V
Watchdog Input Low Voltage VIL 1.8V ≤ VOUT ≤ 11V 0.4 V
Watchdog Input Current IWDI VWDI = 0V or VWDI = 12V -1 +1 µA
Watchdog Timeout Period tWD
MAX6773/MAX6774 1.12 1.6 2.08 s
MAX6773B/MAX6774B 40 50 60 ms
Electrical Characteristics (continued)
MAX6765–MAX6774 Automotive Micropower Linear Regulators
with Supervisor
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(VIN = 14V, COUT = 10μF, CIN = 0.1μF, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
24
28
26
32
30
36
34
38
42
40
44
4 20 2812 36 44 52 60 68
SUPPLY CURRENT vs. INPUT VOLTAGE
MAX6765 toc01
INPUT VOLTAGE (V)
SUPPLY CURRENT (µA)
ILOAD = 100mA
ILOAD = 0
LIMITED BY POWER
DISSIPATION
VOUT = 3.3V
0
1.0
0.5
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
12 36 60
SHUTDOWN SUPPLY CURRENT
vs. INPUT VOLTAGE
MAX6765 toc04
INPUT VOLTAGE (V)
SUPPLY CURRENT (µA)
4 28 44 5220 68
4.80
4.90
4.85
4.95
5.10
5.15
5.05
5.00
5.20
OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX6765 toc07
OUTPUT VOLTAGE (V)
20 40 60 80 100
LOAD CURRENT (mA)
0 3010 50 70 90
VOUT = 5V
OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX6765 toc08
3.22
3.20
3.24
3.30
3.32
3.28
3.26
3.34
OUTPUT VOLTAGE (V)
20 40 60 80 100
LOAD CURRENT (mA)
0 3010 50 70 90
VOUT = 3.3V
1.0
1.5
4.5
2.5
2.0
3.0
3.5
4.0
5.0
-40 -10 5 20-25 35 50 9580 11065 125
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX6765 toc03
TEMPERATURE (°C)
SHUTDOWN SUPPLY CURRENT (µA)
20
0
100
50
150
200
250
300
350
400
450
500
550
600
40 60 80 100
DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX6765 toc06
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV)
0 3010 50 70 90
VOUT = 5V
27
31
29
37
35
33
39
41
45
43
47
-40 -10 5-25 20 35 50 65 80 95 110 125
SUPPLY CURRENT vs. TEMPERATURE
MAX6765 toc02
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
ILOAD = 100mA
ILOAD = 50mA
ILOAD = 1mA
ILOAD = 0
VOUT = 5V
0.992
1.004
1.003
1.002
1.001
1.000
0.999
0.998
0.997
0.996
0.995
0.994
0.993
-40 -10 5-25 20 35 50 65 80 95 110 125
NORMALIZED RESETIN THRESHOLD VOLTAGE
vs. TEMPERATURE
MAX6765 toc05
TEMPERATURE (°C)
NORMALIZED RESETIN THRESHOLD VOLTAGE
MAX6765–MAX6774 Automotive Micropower Linear Regulators
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(VIN = 14V, COUT = 10μF, CIN = 0.1μF, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX6765 toc09
OUTPUT VOLTAGE (V)
1.79
1.77
1.76
1.75
1.78
1.80
1.83
1.84
1.82
1.81
1.85
20 40 60 80 100
LOAD CURRENT (mA)
0 3010 50 70 90
VOUT = 1.8V
NORMALIZED WATCHDOG TIMEOUT
vs. TEMPERATURE
MAX6765 toc12
0.90
0.92
1.04
0.96
0.94
0.98
1.00
1.02
1.06
-40 -10 5 20-25 35 50 9580 11065 125
TEMPERATURE (°C)
NORMALIZED WATCHDOG TIMEOUT
34
35
36
37
38
39
40
41
42
0.001 0.01 0.1 1 10 100
SUPPLY CURRENT
vs. WATCHDOG INPUT FREQUENCY
MAX6765 toc15
WATCHDOG INPUT FREQUENCY (kHz)
SUPPLY CURRENT (µA)
VOUT = 5V
ENABLE
5V/div
GATE
5V/div
HOLD
5V/div
OUT
5V/div
OUT AND HOLD vs. ENABLE
MAX6765 toc16
20ms/div
(SEE TEST CIRCUIT FOR ENABLE AND HOLD)
0.94
0.96
1.08
1.00
0.98
1.02
1.04
1.06
1.10
-40 -10 5 20-25 35 50 9580 11065 125
NORMALIZED RESET TIMEOUT PERIOD
vs. TEMPERATURE
MAX6765 toc11
TEMPERATURE (°C)
NORMALIZED RESET TIMEOUT PERIOD
0
0
1.0
0.5
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
4 8 12 16
MAX6765 toc14
SOURCE CURRENT (mA)
RESET OUTPUT (V)
62 10 14
RESET OUTPUT vs. SOURCE CURRENT
VOUT = 5V
0
20
40
60
80
100
120
140
160
0 25 50 75 100 125
RESET TIMEOUT PERIOD
vs. CAPACITOR VALUE
MAX6765 toc10
CAPACITOR VALUE (nF)
RESET TIMEOUT PERIOD (ms)
0
1.0
0.5
2.0
1.5
2.5
3.0
3.5
4.0
0 10 155 20 25 30 35 40
RESET OUTPUT vs. SINK CURRENT
MAX6765 toc13
SINK CURRENT (mA)
RESET OUTPUT (V)
VOUT = 5V
MAX6765–MAX6774 Automotive Micropower Linear Regulators
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(VIN = 14V, COUT = 10μF, CIN = 0.1μF, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
OUT
(AC-COUPLED)
1V/div
VIN
20V/div
LINE-TRANSIENT RESPONSE
MAX6765 toc21
400µs/div
VOUT = 5V
OUT
(AC-COUPLED)
200mV/div
IOUT
100mA/div
LOAD-TRANSIENT RESPONSE
MAX6765 toc19
100ms/div
VOUT = 5V
-180
-160
-140
-120
-100
-80
-60
-40
-20
0
20
40
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
FREQUENCY (Hz)
0.1 1k 10k 100k101 100 1M
POWER-SUPPLY REJECTION RATIO (dB)
MAX6765 toc17
0
2
1
3
4
5
6
7
8
9
10
11
40 80
vs. LOAD CURRENT
MAX6765 toc22
LOAD CURRENT (mA)
Ω)
0 6020 100
STABLE OPERATING
REGION
OUT
(AC-COUPLED)
1V/div
VIN
10V/div
LINE-TRANSIENT RESPONSE
MAX6765 toc20
400µs/div
VOUT = 5V
0.9980
0.9990
0.9985
1.0000
0.9995
1.0005
1.0010
1.0015
1.0020
4 20 2812 36 44 52 60 68
NORMALIZED OUT VOLTAGE
vs. INPUT VOLTAGE
MAX6765 toc18
INPUT VOLTAGE (V)
NORMALIZED OUT VOLTAGE
VOUT = 3.3V
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PIN
NAME FUNCTION
MAX6765/
MAX6766
MAX6767/
MAX6768
MAX6769/
MAX6770
MAX6771/
MAX6772
MAX6773/
MAX6773B/
MAX6774/
MAX6774B
1 1 1 1 1 IN Regulator Input. Bypass IN to GND with a capacitor
with a minimum value of 0.1µF.
2 2 2 2 2 GND Ground
3 3 3 — 3 ENABLE
Active-High Enable Input. Drive ENABLE high to turn
on the regulator. ENABLE is internally connected to
GND through a 0.6µA current sink.
4 5 5 5 5 RESET
Active-Low, Open-Drain/Push-Pull Reset Output.
For the MAX6769/MAX6770, RESET asserts when
RESETIN is below the internal VTH and deasserts
when RESETIN is above the internal VTH threshold.
For all other versions, RESET remains low while OUT
is below the reset threshold. For all versions, RESET
remains low for the duration of the reset timeout
period after the reset conditions end.
5 7 7 7 7 TIMEOUT
Reset Timeout Adjust Input. Connect TIMEOUT
to OUT for the internally xed timeout period. For
an adjustable timeout, connect a capacitor from
TIMEOUT to GND. See the Selecting Timeout
Capacitor section.
6 8 8 8 8 OUT
Regulator Output. The MAX6765/MAX6766 provide
a xed output (+1.8V, +2.5V, +3.3V, or +5V). The
MAX6767–MAX6774 provide a xed output voltage
of +1.8V, +2.5V, +3.3V, or 5V, or adjust the output
from +1.8V to +11V. Bypass to GND with a 10µF
capacitor (min).
Pin Description
Enable and Hold Test Circuit
GND
VIN
IN
ENABLE
N
ENABLE
GATE
HOLD
OUT
OUT
MAX6767
MAX6768
TEST CIRCUIT FOR OUT AND HOLD VS. ENABLE
HOLD
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Detailed Description
The MAX6765–MAX6774B low-quiescent-current, high-
voltage linear regulators operate from a 4V to 72V input
voltage and deliver more than 100mA of load current.
The MAX6765–MAX6774B include an integrated µP
reset circuit that monitors the regulator output volt-
age and asserts a reset output when OUT falls below
a threshold limit, and includes an internally fixed or
adjustable reset timeout using a capacitor from TIME-
OUT to ground. All devices are available in a preset
output-voltage option of +1.8V, +2.5V, +3.3V, and +5V.
The output voltage of the MAX6767–MAX6774B is adjust-
able from +1.8V to +11V using a resistive divider at
SET. The MAX6773/MAX6774 include a watchdog timer
(WDI) with a 1.6s (typ) watchdog timeout period and the
MAX6773B/MAX6774B include a watchdog timer with
a 50ms (typ) watchdog timeout period. The MAX6769/
MAX6770 feature an adjustable reset threshold using
a resistive divider between the monitored voltage,
RESETIN, and GND; see the Functional Diagrams.
The MAX6771/MAX6772 provide dual enable inputs
(ENABLE1 and ENABLE2) to turn on and off the regula-
tor either through an ignition switch or a bus transceiver.
PIN
NAME FUNCTION
MAX6765/
MAX6766
MAX6767/
MAX6768
MAX6769/
MAX6770
MAX6771/
MAX6772
MAX6773/
MAX6773B/
MAX6774/
MAX6774B
— 4 — — — HOLD
Active-Low Regulator Hold Input. When HOLD is
forced low, OUT remains on even if ENABLE is pulled
low. To shut down the regulator, release HOLD after
ENABLE is pulled low. Connect HOLD to OUT or
leave unconnected if unused. HOLD is internally
connected to OUT through a 1.8µA current source.
— 6 6 6 6 SET
Feedback Input for Setting the Output Voltage.
Connect SET to GND to select the preset output
voltage. Connect to an external resistive divider for
adjustable output operation.
— — 4 — — RESETIN Adjustable Reset Threshold Input. Connect to a
resistive divider to set the desired threshold.
— — — 3 — ENABLE1
Active-High Enable Input 1. Drive ENABLE1 high
to turn on the regulator. ENABLE1 is internally
connected to ground through a 0.6µA current sink.
— — — 4 — ENABLE2
Active-High Enable Input 2. Drive ENABLE2 high
to turn on the regulator. ENABLE2 is internally
connected to ground through a 0.6µA current sink.
— — — — 4 WDI
Watchdog Timer Input. If WDI remains high or low
for longer than the watchdog timeout period, the
internal watchdog timer expires and the reset output
asserts for the reset timeout period. The internal
watchdog timer clears whenever a reset is asserted
or WDI sees a rising or falling edge. The watchdog
timer cannot be disabled. Do not leave
WDI unconnected.
— — — — — EP
Exposed Pad. EP is internally connected to GND.
Connect EP to the ground plane to provide a low
thermal-resistance path from the IC junction to the
PCB. Do not use as the electrical connection to GND.
Pin Description (continued)
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Functional Diagrams
MAX6765/MAX6766
THERMAL
PROTECTION
CONTROL
LOGIC
1.233V
OUT
RESET
GND
1.147V
OR
1.085V
OVERCURRENT
PROTECTION
RESET
TIMEOUT
IN
ENABLE
TIMEOUT
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Functional Diagrams (continued)
MAX6767/
MAX6768
THERMAL
PROTECTION
CONTROL
LOGIC
116mV
OUT
SET
RESET
GND
OVERCURRENT
PROTECTION
RESET
TIMEOUT
IN
ENABLE
HOLD
TIMEOUT
1.233V
1.147V
OR
1.085V
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Functional Diagrams (continued)
MAX6769/
MAX6770
THERMAL
PROTECTION
CONTROL
LOGIC
116mV
OUT
SET
RESET
GND
OVERCURRENT
PROTECTION
RESET
TIMEOUT
RESETIN
IN
ENABLE
TIMEOUT
1.233V
1.147V
OR
1.085V
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Functional Diagrams (continued)
MAX6771/
MAX6772
THERMAL
PROTECTION
CONTROL
LOGIC
OUT
RESET
GND
OVERCURRENT
PROTECTION
RESET
TIMEOUT
IN
ENABLE1
TIMEOUT
ENABLE2
116mV
SET
1.233V
1.147V
OR
1.085V
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Functional Diagrams (continued)
MAX6773/MAX6773B
MAX6774/MAX6774B
THERMAL
PROTECTION
CONTROL
LOGIC
OUT
RESET
GND
OVERCURRENT
PROTECTION
RESET
TIMEOUT
IN
ENABLE
TIMEOUT WDI
116mV
SET
1.233V
1.147V
OR
1.085V
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Regulator
The regulator accepts an input voltage from +4V to +72V.
All of the devices feature fixed output-voltage options of
+1.8V, +2.5V, +3.3V, and +5V. The MAX6767–MAX6774B
feature an adjustable output voltage set with an external
resistive-divider network connected between OUT, SET,
and GND. See Figure 1.
Enable and Hold Inputs
(MAX6767/MAX6768)
The MAX6767/MAX6768 support two logic inputs,
ENABLE (active-high) and HOLD (active-low), making
these devices “automotive friendly.” For example, when
the ignition key signal drives ENABLE high, the regulator
turns on and remains on even if ENABLE goes low, as
long as HOLD is forced low and kept low before ENABLE
goes low. In this state, releasing HOLD turns the regulator
output (OUT) off. This feature makes it possible to imple-
ment a self-holding circuit without external components.
Forcing ENABLE low with HOLD high (or unconnected)
places the MAX6767/MAX6768 into shutdown mode,
drawing 3.3µA (typ) of supply current.
Table 3 shows the state of the regulator output with
respect to the voltage level at ENABLE and HOLD.
Connect HOLD to OUT or leave it unconnected to allow
the ENABLE input to act as a standard enable/shutdown
switch for the regulator output (OUT).
Reset Output
The reset output is typically connected to the reset input
of a µP. A µP’s reset input starts or restarts the µP in
a known state. The MAX6765–MAX6774B supervisory
circuits provide the reset logic to prevent code-execution
errors during power-up, power-down, and brownout con-
ditions (see the Typical Application Circuit). RESET
changes from high to low whenever the monitored volt-
age drops below the reset threshold voltages. Once the
monitored voltage exceeds its respective reset threshold
voltage(s), RESET remains low for the reset timeout
period, then goes high. See Table 1 and Table 2.
RESETIN Threshold (MAX6769/MAX6770)
The MAX6769/MAX6770 monitor the voltage on RESETIN
using an adjustable reset threshold (VRESETIN) set with
an external resistive voltage-divider and the internal reset
threshold (VTH). See Table 2.
Figure 1. Setting the Output Voltage Using a Resistive Divider
Table 1. Preset Timeout Period
Table 2. Preset Output Voltage and Reset Threshold
PART NUMBER
SUFFIX (_)
TIMEOUT
PERIOD
D0 75µs
D1 3.125ms
D2 12.5ms
D3 50ms
D4 200ms
PART
SUFFIX (_)
OUTPUT
VOLTAGE (V)
RESET THRESHOLD (V)
(ALL VERSIONS EXCEPT MAX6769/MAX6770)
RESETIN THRESHOLD (V)
(MAX6769/MAX6770 ONLY)
L 5 4.625 1.147
M 5 4.375 1.085
T 3.3 3.353 1.147
S 3.3 2.888 1.085
Z 2.5 2.313 1.147
Y 2.5 2.188 1.085
W 1.8 1.665 1.147
V 1.8 1.575 1.085
MAX6767–
MAX6774B
SET
R1
R2
GND
IN
VIN
OUT
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Watchdog Timer (MAX6773/MAX6773B/
MAX6774/MAX6774B)
The MAX6773/MAX6774 include a watchdog timer that
asserts RESET if the watchdog input (WDI) does not
toggle within the watchdog timeout period, tWD (1.6s
(typ) for the MAX6773/MAX6774 and 50ms (typ) for the
MAX6773B/MAX6774B). RESET remains low for the
reset timeout period, tRP. If the watchdog is not updated
for lengthy periods of time, the reset output appears as
a pulse train, asserted for the reset timeout period and
deasserted for the watchdog timeout period, until WDI is
toggled again. When RESET asserts, it stays low for the
entire reset timeout period ignoring any WDI transitions.
To prevent the watchdog from asserting RESET, toggle
WDI with a valid rising or falling edge prior to tWD (min).
The watchdog counter clears when WDI toggles prior to
tWD or when RESET asserts. The watchdog resumes
counting after RESET deasserts. The watchdog timer
cannot be disabled.
Thermal Protection
When the junction temperature exceeds TJ = +160°C
(typ), an internal thermal sensor signals the shutdown
logic that turns off the pass transistor and allows the IC
to cool. The thermal sensor turns the pass transistor on
again after the IC’s junction temperature cools by 20°C
(typ), resulting in a cycled output during continuous ther-
mal-overload conditions. Thermal protection protects the
MAX6765–MAX6774B in the event of a fault condition.
Never exceed the absolute maximum junction tempera-
ture rating of TJ = +150°C. See Figures 3 and 4 for the
safe operating area.
Applications Information
Output-Voltage Selection
The MAX6767–MAX6774B feature dual-mode
operation and operate in either a preset or adjustable
voltage mode. In preset voltage mode, internal trimmed
feedback resistors set the internal linear regulator to
+1.8V, +2.5V, +3.3V, or +5V (see Table 2). Select preset-
voltage mode by connecting SET to ground. In adjustable
mode, select an output voltage between +1.8V and +11V
using two external resistors connected as a voltage-divid-
er to SET (see Figure 1). Set the output voltage using the
following equation:
VOUT = VSET (1 + R1/R2)
where VSET = 1.233V and the recommended value for R2
is 50kΩ (maximum 100kΩ).
RESETIN Threshold Selection
The MAX6769/MAX6770 feature an adjustable reset
threshold to monitor the voltage on RESETIN using
a resistive divider between the monitored voltage,
RESETIN and GND. See Figure 2. Use the following
formula to set the desired reset threshold:
VMON = VTH (1 + R3/R4)
where VTH is 1.085V for the M/S/Y/V versions and 1.147V
for the L/T/Z/W versions.
Table 3. ENABLE/HOLD Truth Table/State Table
Figure 2. RESETIN Threshold Selection
OPERATING
STATE ENABLE HOLD REGULATOR
OUTPUT COMMENT
Initial State Low Don’t care Off ENABLE is pulled to GND through an internal pulldown. HOLD is high
impedance (pulled up to OUT). Regulator output is disabled.
Turn-On State High Don’t care On ENABLE is externally driven high turning the regulator output on.
HOLD is pulled up by OUT.
Hold
Setup State High Low On HOLD is externally pulled low while ENABLE remains high (latches
HOLD state).
Hold State Low Low On ENABLE is driven low (or pulled low by an internal pulldown).
HOLD remains externally pulled low keeping the regulator output on.
Off-State Low High
(pulled high) Off
HOLD is driven high (or pulled high by an internal pullup) while
ENABLE is low. Regulator output is shut off and ENABLE/
HOLD logic returns to the initial state.
MAX6769
MAX6770
RESETRESETIN
R3
R4 GND
IN
VIN
VMON
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Available Output-Current Calculation
The MAX6765–MAX6774B provide up to 100mA of load
current. Package power dissipation limits the amount
of output current available for a given input/output volt-
age and ambient temperature. Figures 3 and 4 depict
the maximum power dissipation curve for the MAX6765/
MAX6766 and MAX6767–MAX6774B, respectively. The
graph assumes that the exposed metal pad of the device
package is soldered to a solid 1in2 section of 2oz.
PCB copper (JESD51-3 AND JESD51-5). Use Figure
4 to determine the allowable package dissipation for a
given ambient temperature. Alternately, use the following
formula to calculate the allowable package dissipation:
PDMAX = Max. Power Dissip = 1.951W, for TA ≤ +70°C
PDMAX = Max. Power Dissip = [1.9W - 0.0244W x
(TA - 70°C)], for +70°C < TA ≤ +125°C
where 0.0244W is the MAX6767–MAX6774B package
thermal derating in W/°C and TA is the ambient tempera-
ture in °C, under the same conditions used for Figure 4.
After determining the allowable package dissipation,
calculate the maximum output current using the following
formula:
PD < PDMAX where PD = [(VIN - VOUT) x IOUT]
Also, IOUT should be ≤ 100mA in any case.
Selecting Timeout Capacitor
The reset timeout period is adjustable to accommodate a
variety of µP applications. Adjust the reset timeout period
by connecting a capacitor between TIMEOUT and GND.
tRP = CTIMEOUT x 1.22 x 106Ω (L/M/T/S options)
tRP = CTIMEOUT x 1.17 x 106Ω (V/W/Y/Z options)
where tRP is in seconds and CTIMEOUT is in Farads.
Connect TIMEOUT to OUT to select the internally
fixed timeout period. CTIMEOUT must be a low-leakage
(< 10nA) type capacitor. Ceramic capacitors are
recommended; do not use capacitor values lower than
100pF to avoid the influence of parasitic capacitances.
Capacitor Selection and
Regulator Stability
For stable operation over the full temperature range and
with load currents up to 100mA, use a 10µF (min) out-
put capacitor with an ESR < 0.5Ω. To reduce noise and
improve load-transient response, stability, and power-
supply rejection, use larger output-capacitor values.
Some ceramic dielectrics exhibit large capacitance and
ESR variation with temperature. For dielectric capacitors
such as Z5U and Y5V, use more capacitance to ensure
stability at low temperatures. With X7R or X5R dielectrics,
10µF should be sufficient at all operating temperatures.
For higher-ESR tantalum capacitors, use larger capaci-
tor values to maintain stability. To improve power-supply
rejection and transient response, use a larger capacitor
than the minimum 0.1µF capacitor between IN and GND.
Figure 3. Maximum Power Dissipation vs. Temperature
(MAX6765/MAX6766)
Figure 4. Maximum Power Dissipation vs. Temperature
(MAX6767–MAX6774B)
MAX6765 fig03
TEMPERATURE (°C)
PD (W)
14012080 10040 6020
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
0
0 160
DERATE 23.8mW/°C
ABOVE +70°C
1.904W
SAFE OPERATING
AREA
MAX6765 fig04
TEMPERATURE (°C)
PD (W)
14012080 10040 6020
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
0
0 160
DERATE 24.4mW/°C
ABOVE +70°C
1.951W
SAFE OPERATING
AREA
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Ensuring a Valid RESET Output Down to
VIN = 0V (MAX6766/MAX6768/MAX6770/
MAX6772/MAX6774/MAX6774B)
When VIN falls below 1V, RESET current-sinking capa-
bilities decline drastically. High-impedance CMOS-logic
inputs connected to RESET can drift to undetermined
voltages. This presents no problems in most applications,
since most µPs and other circuitry do not operate with
supply voltages below 1V. In applications where RESET
must be valid down to 0V, adding a pulldown resistor
between RESET and ground sinks any stray leakage
currents, holding RESET low (Figure 5). The value of the
pulldown resistor is not critical; 100kΩ is large enough
not to load RESET and small enough to pull RESET to
ground. Open-drain RESET versions are not recommend-
ed for applications requiring valid logic for VIN down to 0V. Figure 5. Ensuring RESET Valid to VIN = 0V
Table 4. Standard Version Part Numbers
PART OUTPUT
VOLTAGE (V)
RESET
TIMEOUT
PERIOD (ms)
RESET
THRESHOLD
(V)
RESETIN
THRESHOLD
(V)
TOP MARK
MAX6765TTLD2+T 5 12.5 4.625 — +AQB
MAX6765TTLD2/V+T 5 12.5 4.625 — +AVC
MAX6765TTSD2+T 3.3 12.5 2.888 — +AQL
MAX6765TTSD2/V+T 3.3 12.5 2.888 — +AUQ
MAX6766TTLD2+T 5 12.5 4.625 — +ARO
MAX6766TTSD2+T 3.3 12.5 2.888 — +ARZ
MAX6767TALD2+T 5 12.5 4.625 — +AVI
MAX6767TALD2/V+T 5 12.5 4.625 — +BRK
MAX6767TASD2+T 3.3 12.5 2.888 — +AVS
MAX6768TALD2+T 5 12.5 4.625 — +AVZ
MAX6768TASD2+T 3.3 12.5 2.888 — +AXE
MAX6769TALD2+T 5 12.5 — 1.147 +AYH
MAX6769TASD2+T 3.3 12.5 — 1.085 +AYQ
MAX6769TALD2/V+T 5 12.5 — 1.147 +BQF
MAX6770TALD2+T 5 12.5 — 1.147 +AZS
MAX6770TASD2+T 3.3 12.5 — 1.085 +BAC
MAX6771TALD2+T 5 12.5 4.625 — +BEG
MAX6771TASD2+T 3.3 12.5 2.888 — +BEQ
MAX6772TALD2+T 5 12.5 4.625 — +APY
MAX6772TASD2+T 3.3 12.5 2.888 — +BGC
MAX6773TALD2+T 5 12.5 4.625 — +BBG
MAX6773TASD2+T 3.3 12.5 2.888 — +AQE
MAX6773BTALD2+T 5 12.5 4.625 — +BHK
MAX6773BTASD2+T 3.3 12.5 2.888 — +BHU
MAX6773BTASD2/V+T 3.3 12.5 2.888 — +BNN
MAX6774TALD2+T 5 12.5 4.625 — +BCS
MAX6774TASD2+T 3.3 12.5 2.888 — +BDC
MAX6774BTALD2+T 5 12.5 4.625 — +BIY
MAX6774BTASD2+T 3.3 12.5 2.888 — +BJI
MAX6766
MAX6768
MAX6770
MAX6772
MAX6774
MAX6774B
RESET
GND
IN
VIN
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PART RESET
OUTPUT
TYPICAL
WATCHDOG
TIMEOUT
OUTPUT
VOLTAGE
RESETIN
THRESHOLD
ENABLE
INPUTS HOLD INPUT
MAX6765 Open drain — Fixed — Single —
MAX6766 Push-pull — Fixed — Single —
MAX6767 Open drain — Fixed/Adj — Single √
MAX6768 Push-pull — Fixed/Adj — Single √
MAX6769 Open drain — Fixed/Adj √Single —
MAX6770 Push-pull — Fixed/Adj √Single —
MAX6771 Open drain — Fixed/Adj — Dual —
MAX6772 Push-pull — Fixed/Adj — Dual —
MAX6773 Open drain 1.6s Fixed/Adj — Single —
MAX6773B Open drain 50ms Fixed/Adj — Single —
MAX6774 Push-pull 1.6s Fixed/Adj — Single —
MAX6774B Push-pull 50ms Fixed/Adj — Single —
MAX6766
12V
BATTERY
VCC
I/O
LIN
IN
GND
TIMEOUT
RESET
OUT
ENABLE
µC XCVR
TXD
RXD
RESET
Selector Guide
Typical Application Circuit
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1
+
3 4
8 6 5
OUT
SET
RESET
MAX6767
MAX6768
2
7
TIMEOUT
ENABLE
GND
IN
HOLD
TDFN
TOP VIEW
1
+
3 4
8 6 5
OUT
SET
RESET
MAX6769
MAX6770
2
7
TIMEOUT
ENABLE
GND
IN
RESETIN
TDFN
TOP VIEW
1
+
3 4
8 6 5
OUT
SET
RESET
MAX6771
MAX6772
2
7
TIMEOUT
ENABLE1
GND
IN
ENABLE2
TDFN
TOP VIEW
1
+
3 4
8 6 5
OUT
SET
RESET
MAX6773
MAX6773B
MAX6774
MAX6774B
2
7
TIMEOUT
ENABLE
GND
IN
WDI
TDFN
TOP VIEW
EP EP
EP EP
Pin Congurations (continued)
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The first “_” is a placeholder for the voltage output and reset
threshold. The 2nd “_” designates the fixed reset-timeout option.
See Tables 1 and 2 for details. For example, the MAX6765TTLD4
has a 5V output, a reset threshold of 4.65V, and a 200ms typical
reset timeout.
+Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
*EP = Exposed pad.
For tape-and-reel orders add a “T” after the “+” symbol to com-
plete the part number. Tape-and-reel orders are available in
2.5k increments. Nonstandard versions require a 10k minimum
order quantity.
PART TEMP
RANGE
PIN-
PACKAGE
MAX6766TT_D_+ -40°C to +125°C 8 TDFN-EP*
MAX6767TA_D_/V+ -40°C to +125°C 8 TDFN-EP*
MAX6768TA_D_+ -40°C to +125°C 8 TDFN-EP*
MAX6769TA_D_+ -40°C to +125°C 8 TDFN-EP*
MAX6769TA_D_/V+ -40°C to +125°C 8 TDFN-EP*
MAX6770TA_D_+ -40°C to +125°C 8 TDFN-EP*
MAX6771TA_D_+ -40°C to +125°C 8 TDFN-EP*
MAX6772TA_D_+ -40°C to +125°C 8 TDFN-EP*
MAX6773TA_D_/V+ -40°C to +125°C 8 TDFN-EP*
MAX6773BTA_D_/V+ -40°C to +125°C 8 TDFN-EP*
MAX6774TA_D_+ -40°C to +125°C 8 TDFN-EP*
MAX6774BTA_D_+ -40°C to +125°C 8 TDFN-EP*
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
6 TDFN-EP T633+2 21-0137 90-0058
8 TDFN-EP T833+2 21-0137 90-0059
Ordering Information (continued)
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.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.
Chip Information
PROCESS: BiCMOS
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REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
0 10/06 Initial release —
1 1/07 Introduced MAX6765 and MAX6766 1, 21, 23
2 7/07
Added the MAX6773B and MAX6774D to data sheet. Updated Features,
General Description, Ordering Information, Functional Diagrams, Table 4,
Selector Guide, Watchdog Timer section, and Pin Congurations.
1, 4, 8, 9, 14,
16, 18–23
3 9/07 Revised Typical Operating Characteristics 7
4 6/10 Added /V to the MAX6765TT_D_+ 1
5 10/11
Added /V to the MAX6773TA_D_+; added Timeout ramp threshold to
Electrical Characteristics table. Changed tRP formula in Selecting Timeout
Capacitor section.
4, 17, 21
6 3/12 Added /V to the MAX6769TA_D_/V+ 21
7 10/12 Added /V to the MAX6767TA_D_/V+ 21
8 4/13 Updated Tables 2 and 4 15, 18
9 8/17 Added AEC-Q100 to Features section and updated Table 4 1, 18
Revision History
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
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MAX6765TTLD0+T MAX6765TTLD1+T MAX6765TTLD2+T MAX6765TTLD3+T MAX6765TTLD4+T
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MAX6765TTSD0+T MAX6765TTSD1+T MAX6765TTSD2+T MAX6765TTSD4+T MAX6765TTTD0+T
MAX6765TTTD1+T MAX6765TTTD2+T MAX6765TTTD3+T MAX6765TTTD4+T MAX6765TTVD0+T
MAX6765TTVD1+T MAX6765TTVD2+T MAX6765TTVD3+T MAX6765TTVD4+T MAX6765TTWD0+T
MAX6765TTWD1+T MAX6765TTWD2+T MAX6765TTWD3+T MAX6765TTWD4+T MAX6765TTYD0+T
MAX6765TTYD1+T MAX6765TTYD2+T MAX6765TTYD3+T MAX6765TTYD4+T MAX6765TTZD0+T
MAX6765TTZD1+T MAX6765TTZD2+T MAX6765TTZD3+T MAX6765TTZD4+T MAX6766TTLD0+T
MAX6766TTLD1+T MAX6766TTLD2+T MAX6766TTLD3+T MAX6766TTLD4+T MAX6766TTMD0+T
MAX6766TTMD1+T MAX6766TTMD2+T MAX6766TTMD3+T MAX6766TTMD4+T MAX6766TTSD0+T
MAX6766TTSD1+T MAX6766TTSD2+T MAX6766TTSD3+T MAX6766TTSD4+T MAX6766TTTD0+T
MAX6766TTTD1+T MAX6766TTTD2+T MAX6766TTTD3+T MAX6766TTTD4+T MAX6766TTVD0+T
MAX6766TTVD1+T MAX6766TTVD2+T MAX6766TTVD3+T MAX6766TTVD4+T MAX6766TTWD0+T
MAX6766TTWD1+T MAX6766TTWD2+T MAX6766TTWD3+T MAX6766TTWD4+T MAX6766TTYD0+T
MAX6766TTYD1+T MAX6766TTYD2+T MAX6766TTYD4+T MAX6766TTZD0+T MAX6766TTZD1+T
MAX6766TTZD2+T MAX6766TTZD3+T MAX6766TTZD4+T MAX6767TALD0+T MAX6767TALD1+T
MAX6767TALD2+T MAX6767TALD3+T MAX6767TALD4+T MAX6767TAMD0+T MAX6767TAMD1+T
MAX6767TAMD2+T MAX6767TAMD3+T MAX6767TAMD4+T MAX6767TASD0+T MAX6767TASD1+T
MAX6767TASD2+T MAX6767TASD3+T MAX6767TASD4+T MAX6767TATD0+T MAX6767TATD1+T
MAX6767TATD2+T MAX6767TATD3+T MAX6767TATD4+T MAX6767TAVD1+T MAX6767TAVD2+T