EVALUATION KIT AVAILABLE
Click here for production status of specific part numbers.
Automotive Micropower Linear Regulators
with Supervisor
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, thermally 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.
●●
●●
●●
●●
●●
●●
●●
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
TEMP
RANGE
PART
-40°C to +125°C
6 TDFN-EP*
MAX6765TT_D_/V+
-40°C to +125°C
6 TDFN-EP*
Ordering Information continued at end of data sheet.
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 complete the part number. Tape-and-reel orders are available in
2.5k increments. Nonstandard versions require a 10k minimum
order quantity.
Pin Configurations
TOP VIEW
6
5
4
The MAX6765–MAX6774B are fully specified for a -40°C
to +125°C operating temperature range.
●● Automotive
●● Industrial
●● Telecom
Typical Application Circuit and Selector Guide appear at
end of data sheet.
19-0657; Rev 10; 11/18
MAX6765
MAX6766
EP
+
1
IN
Applications
PINPACKAGE
MAX6765TT_D_+
RESET
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 traditional enable input (ENABLE) to turn on and off the regulator. 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 addition 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.
●●
●●
●●
●●
●●
●●
2
3
ENABLE
The MAX6765–MAX6774B feature a push-pull or opendrain, 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.
Features
TIMEOUT
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, making 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.
GND
General Description
OUT
MAX6765–MAX6774
TDFN
Pin Configurations continued at end of data sheet.
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Absolute Maximum Ratings
(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
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.
Package Information
TDFN-6
PACKAGE CODE
T633+2
Outline Number
21-0137
Land Pattern Number
90-0058
Thermal Resistance, Single-Layer Board:
Junction to Ambient (θJA)
55°C/W
Junction to Case (θJC)
9°C/W
Thermal Resistance, Multi-Layer Board:
Junction to Ambient (θJA)
42°C/W
Junction to Case (θJC)
9°C/W
TDFN-8
PACKAGE CODE
T833+2
Outline Number
21-0137
Land Pattern Number
90-0058
Thermal Resistance, Single-Layer Board:
Junction to Ambient (θJA)
54°C/W
Junction to Case (θJC)
8°C/W
Thermal Resistance, Multi-Layer Board:
Junction to Ambient (θJA)
41°C/W
Junction to Case (θJC)
8°C/W
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.
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board.
For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
www.maximintegrated.com
Maxim Integrated │ 2
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Electrical Characteristics
(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
Supply Voltage Range
SYMBOL
Supply Current
(MAX6765–MAX6772) (Note 2)
Supply Current
(MAX6773/MAX6773B/
MAX6774/MAX6774B)
(Note 2)
Shutdown Supply Current
Output Voltage
ISHDN
VOUT
Adjustable Output Voltage Range
VOUT
SET Threshold Voltage
(MAX6767–MAX6774)
VSET
Dual Mode™ SET Threshold
CONDITIONS
VIN
MIN
TYP
4
MAX
UNITS
72
V
ILOAD = 0A
31
45
ILOAD = 50mA
35
50
ILOAD = 100mA, VIN = 14V
37
55
ILOAD = 0A, VIN = 42V
35
50
ILOAD = 10mA, VIN = 42V
37
55
ILOAD = 0A
38
50
ILOAD = 50mA
42
55
ILOAD = 100mA
44
60
ILOAD = 0A, VIN = 42V
42
55
ILOAD = 10mA, VIN = 42V
44
60
ENABLE , ENABLE1, ENABLE2 = GND
3.3
7
L/M, ILOAD = 1mA
4.925
5
5.075
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
1.8
ILOAD = 1mA
1.20
1.233
SET rising
116
SET falling
58
µA
µA
µA
V
11.0
V
1.26
V
mV
Dual Mode is a trademark of Maxim Integrated Products, Inc.
www.maximintegrated.com
Maxim Integrated │ 3
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Electrical Characteristics (continued)
(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
SET Input Current
(MAX6767–MAX6774)
Dropout Voltage (Note 3)
SYMBOL
ISET
ΔVDO
CONDITIONS
VSET = 1.5V, VIN = 11V
MIN
TYP
-100
MAX
UNITS
+100
nA
L/M, 5V output option, ILOAD = 10mA
60
130
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
Output Current Limit
Output shorted to GND, VIN = 14V
150
Thermal-Shutdown Temperature
Thermal-Shutdown Hysteresis
mA
250
mA
160
°C
20
Line Regulation
6.5V ≤ VIN ≤ 72V, ILOAD = 1mA
Load Regulation
(MAX6767–MAX6774)
IOUT = 1mA to 100mA,
VIN = VOUT(NOM) + 6V
mV
°C
1
%
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
OUT = OUT(NOM) x 1.15
5
10
Output Overvoltage Protection
Maximum Sink Current
1.13 x
VOUT
V
mA
LOGIC INPUT (ENABLE, ENABLE1, ENABLE2, HOLD)
Input Low Voltage
VIL
ENABLE, ENABLE1, ENABLE2
Input High Voltage
VIH
ENABLE, ENABLE1, ENABLE2
ENABLE, ENABLE1, ENABLE2
Input Pulldown Current
HOLD Input Pullup Current
RESET OUTPUT
RESET Threshold
www.maximintegrated.com
1.4
ENABLE, ENABLE1, ENABLE2 are
internally pulled down to GND
VIL
HOLD Input Threshold Voltage
0.4
VIH
V
0.6
1.8V ≤ VOUT ≤ 11V
µA
0.4
V
OUT 0.4
1.8V ≤ VOUT ≤ 11V
1.8
HOLD is internally pulled up to OUT
SET = GND,
RESET falling
V
µA
L
4.500
4.625
4.750
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
V
Maxim Integrated │ 4
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Electrical Characteristics (continued)
(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
RESET Threshold (Adjustable
Output Voltage)
RESETIN Input Current
RESETIN Threshold
CONDITIONS
MIN
TYP
MAX
L/T/Z/W, SET = resistive divider, RESET
falling
VOUT x VOUT
VOUT
0.9
x 0.925 x 0.950
M/S/Y/V, SET = resistive divider, RESET
falling
VOUT
x 0.85
VOUT
VOUT
x 0.875 x 0.900
VRESETIN = VGND or 12V
-100
+100
VTH = 87.5% of VSET (M/S/Y/V),
RESET falling
1.057
1.085
1.112
VTH = 92.5% of VSET (L/T/Z/W),
RESET falling
1.118
1.147
1.176
UNITS
V
nA
V
OUT to RESET Delay
VOUT falling
0.3
µs
RESETIN To RESET Delay
RESETIN falling
35
µs
D0
RESET Timeout Period
(TIMEOUT Connected to OUT)
VOUT rising
RESET Output-Voltage Low
(Open Drain or Push-Pull)
VOL
RESET Output-Voltage High
(Push-Pull)
VOH
RESET Open-Drain Leakage
Current
Watchdog Minimum Input Pulse
3.125
4.063
D2
8.75
12.5
16.25
D3
35
50
65
D4
140
200
260
800
1000
1200
L/M/T/S options
1.160
1.220
1.259
V/W/Y/Z options
1.060
1.170
1.242
VOUT ≥ 1.8V, ISINK = 50µA,
RESET asserted
0.3
VOUT ≥ 1.8V, ISINK = 3.2mA,
RESET asserted
0.4
VOUT ≥ 1.8V, ISOURCE = 250µA,
RESET not asserted
1.8V ≤ VOUT ≤ 11V
Watchdog Input Low Voltage
VIL
1.8V ≤ VOUT ≤ 11V
Watchdog Input High Voltage
VIH
1.8V ≤ VOUT ≤ 11V
Watchdog Input Low Voltage
VIL
1.8V ≤ VOUT ≤ 11V
Watchdog Timeout Period
IWDI
tWD
VWDI = 0V or VWDI = 12V
MAX6773/MAX6774
MAX6773B/MAX6774B
ms
nA
V
V
0.8 x
VOUT
V
100
RESET not asserted, RESET = 12V
tWDI
Watchdog Input Current
µs
2.187
TIMEOUT Ramp Current
TIMEOUT Ramp Threshold
75
D1
1
nA
µs
0.4
VOUT - 0.4V
-1
V
V
0.4
V
+1
µA
1.12
1.6
2.08
s
40
50
60
ms
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.
www.maximintegrated.com
Maxim Integrated │ 5
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Typical Operating Characteristics
(VIN = 14V, COUT = 10μF, CIN = 0.1μF, TA = +25°C, unless otherwise noted.)
34
32
ILOAD = 0
30
41
37
35
31
26
29
20
28
36
44
52
60
4.0
3.5
3.0
2.5
2.0
1.5
1.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
NORMALIZED RESETIN THRESHOLD VOLTAGE
vs. TEMPERATURE
DROPOUT VOLTAGE
vs. LOAD CURRENT
20
28
36
44
52
60
68
-40 -25 -10 5 20 35 50 65 80 95 110 125
INPUT VOLTAGE (V)
300
250
200
150
100
50
0
0
10 20 30 40 50 60 70 80 90 100
MAX6765 toc07
5.05
5.00
4.95
4.90
VOUT = 3.3V
3.34
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
5.10
3.32
3.30
3.28
3.26
3.24
3.22
4.85
4.80
450
400
350
OUTPUT VOLTAGE
vs. LOAD CURRENT
VOUT = 5V
5.15
VOUT = 5V
LOAD CURRENT (mA)
TEMPERATURE (°C)
OUTPUT VOLTAGE
vs. LOAD CURRENT
5.20
600
550
500
MAX6765 toc08
12
1.004
1.003
1.002
1.001
1.000
0.999
0.998
0.997
0.996
0.995
0.994
0.993
0.992
MAX6765 toc06
SHUTDOWN SUPPLY CURRENT
vs. INPUT VOLTAGE
DROPOUT VOLTAGE (mV)
TEMPERATURE (°C)
MAX6765 toc05
TEMPERATURE (°C)
3.0
2.5
2.0
1.5
1.0
4
ILOAD = 0
4.5
INPUT VOLTAGE (V)
4.5
4.0
3.5
0.5
0
27
68
MAX6765 toc04
6.0
5.5
5.0
12
ILOAD = 50mA
ILOAD = 1mA
33
28
4
ILOAD = 100mA
39
MAX6765 toc03
43
5.0
SHUTDOWN SUPPLY CURRENT (µA)
36
24
SUPPLY CURRENT (µA)
SUPPLY CURRENT (µA)
38
VOUT = 5V
45
NORMALIZED RESETIN THRESHOLD VOLTAGE
SUPPLY CURRENT (µA)
LIMITED BY POWER
DISSIPATION
ILOAD = 100mA
40
47
MAX6765 toc02
VOUT = 3.3V
42
MAX6765 toc01
44
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
SUPPLY CURRENT vs. TEMPERATURE
SUPPLY CURRENT vs. INPUT VOLTAGE
0
10 20 30 40 50 60 70 80 90 100
LOAD CURRENT (mA)
www.maximintegrated.com
3.20
0
10 20 30 40 50 60 70 80 90 100
LOAD CURRENT (mA)
Maxim Integrated │ 6
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Typical Operating Characteristics (continued)
(VIN = 14V, COUT = 10μF, CIN = 0.1μF, TA = +25°C, unless otherwise noted.)
1.80
1.79
1.78
1.77
100
80
60
40
20
1.76
1.75
120
0
0
10 20 30 40 50 60 70 80 90 100
0
25
MAX6765 toc11
1.06
1.04
1.02
1.00
0.98
0.96
0.94
125
-40 -25 -10 5 20 35 50 65 80 95 110 125
1.00
0.98
0.96
VOUT = 5V
3.5
RESET OUTPUT (V)
1.02
TEMPERATURE (°C)
3.0
2.5
2.0
1.5
0.94
1.0
0.92
0.5
0.90
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
5.5
RESET OUTPUT vs. SOURCE CURRENT
VOUT = 5V
5.0
4.5
RESET OUTPUT (V)
1.04
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
TEMPERATURE (°C)
5
10
15
20
25
30
35
40
0
0
SINK CURRENT (mA)
SUPPLY CURRENT
vs. WATCHDOG INPUT FREQUENCY
2
4
6
8
10
12
14
16
SOURCE CURRENT (mA)
OUT AND HOLD vs. ENABLE
MAX6765 toc16
MAX6765 toc15
VOUT = 5V
41
SUPPLY CURRENT (µA)
100
RESET OUTPUT vs. SINK CURRENT
4.0
MAX6765 toc12
NORMALIZED WATCHDOG TIMEOUT
NORMALIZED WATCHDOG TIMEOUT
vs. TEMPERATURE
42
75
1.08
CAPACITOR VALUE (nF)
LOAD CURRENT (mA)
1.06
50
1.10
NORMALIZED RESET TIMEOUT PERIOD
vs. TEMPERATURE
MAX6765 toc14
1.81
140
NORMALIZED RESET TIMEOUT PERIOD
1.82
160
MAX6765 toc13
OUTPUT VOLTAGE (V)
1.83
RESET TIMEOUT PERIOD
vs. CAPACITOR VALUE
MAX6765 toc10
VOUT = 1.8V
1.84
RESET TIMEOUT PERIOD (ms)
1.85
MAX6765 toc09
OUTPUT VOLTAGE
vs. LOAD CURRENT
ENABLE
5V/div
40
39
GATE
5V/div
38
HOLD
5V/div
37
36
OUT
5V/div
35
34
0.001
0.01
0.1
1
10
WATCHDOG INPUT FREQUENCY (kHz)
www.maximintegrated.com
100
20ms/div
(SEE TEST CIRCUIT FOR ENABLE AND HOLD)
Maxim Integrated │ 7
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Typical Operating Characteristics (continued)
(VIN = 14V, COUT = 10μF, CIN = 0.1μF, TA = +25°C, unless otherwise noted.)
0
-20
-40
VOUT = 3.3V
1.0015
1.0010
1.0005
-60
1.0000
-80
0.9995
-100
-120
0.9990
-140
0.9985
-160
-180
1.0020
MAX6765 toc18
20
NORMALIZED OUT VOLTAGE
vs. INPUT VOLTAGE
NORMALIZED OUT VOLTAGE
MAX6765 toc17
POWER-SUPPLY REJECTION RATIO (dB)
40
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
0.1
1
10
100
1k
10k
100k
0.9980
1M
4
12
FREQUENCY (Hz)
20
28
36
44
52
60
68
INPUT VOLTAGE (V)
LOAD-TRANSIENT RESPONSE
LINE-TRANSIENT RESPONSE
MAX6765 toc19
MAX6765 toc20
VOUT = 5V
VOUT = 5V
OUT
(AC-COUPLED)
1V/div
OUT
(AC-COUPLED)
200mV/div
VIN
10V/div
IOUT
100mA/div
400µs/div
LINE-TRANSIENT RESPONSE
OUTPUT CAPACITOR SERIES RESISTANCE
vs. LOAD CURRENT
OUT
(AC-COUPLED)
1V/div
VIN
20V/div
400µs/div
11
MAX6765 toc22
MAX6765 toc21
VOUT = 5V
OUTPUT CAPACITOR SERIES RESISTANCE (Ω)
100ms/div
10
9
8
7
6
STABLE OPERATING
REGION
5
4
3
2
1
0
0
20
40
60
80
100
LOAD CURRENT (mA)
www.maximintegrated.com
Maxim Integrated │ 8
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Enable and Hold Test Circuit
VIN
IN
ENABLE
OUT
OUT
MAX6767
MAX6768
ENABLE
HOLD
HOLD
GND
N
GATE
TEST CIRCUIT FOR OUT AND HOLD VS. ENABLE
Pin Description
PIN
MAX6773/
MAX6769/ MAX6771/ MAX6773B/
MAX6770 MAX6772 MAX6774/
MAX6774B
NAME
FUNCTION
MAX6765/
MAX6766
MAX6767/
MAX6768
1
1
1
1
1
IN
2
2
2
2
2
GND
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.
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.
4
5
6
5
7
8
www.maximintegrated.com
5
7
8
5
7
8
5
7
8
Regulator Input. Bypass IN to GND with a capacitor
with a minimum value of 0.1µF.
Ground
Reset Timeout Adjust Input. Connect TIMEOUT
to OUT for the internally fixed timeout period. For
TIMEOUT an adjustable timeout, connect a capacitor from
TIMEOUT to GND. See the Selecting Timeout
Capacitor section.
OUT
Regulator Output. The MAX6765/MAX6766 provide
a fixed output (+1.8V, +2.5V, +3.3V, or +5V). The
MAX6767–MAX6774 provide a fixed 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).
Maxim Integrated │ 9
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Pin Description (continued)
PIN
MAX6765/
MAX6766
—
MAX6767/
MAX6768
4
MAX6773/
MAX6769/ MAX6771/ MAX6773B/
MAX6770 MAX6772 MAX6774/
MAX6774B
—
—
—
NAME
FUNCTION
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.
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.
—
6
6
6
6
SET
—
—
4
—
—
RESETIN
—
—
—
3
—
Active-High Enable Input 1. Drive ENABLE1 high
ENABLE1 to turn on the regulator. ENABLE1 is internally
connected to ground through a 0.6µA current sink.
—
—
—
4
—
Active-High Enable Input 2. Drive ENABLE2 high
ENABLE2 to turn on the regulator. ENABLE2 is internally
connected to ground through a 0.6µA current sink.
—
—
—
—
—
—
Detailed Description
—
—
4
—
The MAX6765–MAX6774B low-quiescent-current, highvoltage 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 voltage 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 TIMEOUT to ground. All devices are available in a preset
output-voltage option of +1.8V, +2.5V, +3.3V, and +5V.
www.maximintegrated.com
WDI
EP
Adjustable Reset Threshold Input. Connect to a
resistive divider to set the desired threshold.
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.
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.
The output voltage of the MAX6767–MAX6774B is adjustable 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 regulator either through an ignition switch or a bus transceiver.
Maxim Integrated │ 10
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Functional Diagrams
THERMAL
PROTECTION
OUT
IN
OVERCURRENT
PROTECTION
ENABLE
CONTROL
LOGIC
MAX6765/MAX6766
1.147V
1.233V
RESET
TIMEOUT
OR
RESET
1.085V
TIMEOUT
GND
www.maximintegrated.com
Maxim Integrated │ 11
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Functional Diagrams (continued)
THERMAL
PROTECTION
IN
MAX6767/
MAX6768
OUT
OVERCURRENT
PROTECTION
ENABLE
HOLD
CONTROL
LOGIC
SET
116mV
1.147V
1.233V
RESET
TIMEOUT
OR
RESET
1.085V
TIMEOUT
GND
www.maximintegrated.com
Maxim Integrated │ 12
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Functional Diagrams (continued)
THERMAL
PROTECTION
MAX6769/
MAX6770
OUT
IN
OVERCURRENT
PROTECTION
ENABLE
CONTROL
LOGIC
SET
116mV
1.147V
RESET
TIMEOUT
1.233V
OR
RESET
1.085V
RESETIN
TIMEOUT
GND
www.maximintegrated.com
Maxim Integrated │ 13
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Functional Diagrams (continued)
THERMAL
PROTECTION
MAX6771/
MAX6772
OUT
IN
OVERCURRENT
PROTECTION
ENABLE1
ENABLE2
CONTROL
LOGIC
SET
116mV
1.147V
1.233V
RESET
TIMEOUT
OR
RESET
1.085V
TIMEOUT
GND
www.maximintegrated.com
Maxim Integrated │ 14
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Functional Diagrams (continued)
THERMAL
PROTECTION
OUT
IN
OVERCURRENT
PROTECTION
ENABLE
CONTROL
LOGIC
1.147V
SET
116mV
RESET
TIMEOUT
1.233V
OR
1.085V
RESET
MAX6773/MAX6773B
MAX6774/MAX6774B
TIMEOUT WDI
GND
www.maximintegrated.com
Maxim Integrated │ 15
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
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.
VIN
IN
OUT
R1
MAX6767–
MAX6774B
Enable and Hold Inputs
(MAX6767/MAX6768)
SET
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 implement 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).
Figure 1. Setting the Output Voltage Using a Resistive Divider
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.
Table 1. Preset Timeout Period
PART NUMBER
SUFFIX (_)
TIMEOUT
PERIOD
D0
75µs
D1
3.125ms
D2
12.5ms
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 conditions (see the Typical Application Circuit). RESET
changes from high to low whenever the monitored voltage drops below the reset threshold voltages. Once the
R2
GND
D3
50ms
D4
200ms
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.
Table 2. Preset Output Voltage and Reset Threshold
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
www.maximintegrated.com
Maxim Integrated │ 16
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Table 3. ENABLE/HOLD Truth Table/State Table
OPERATING
STATE
ENABLE
HOLD
REGULATOR
OUTPUT
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.
COMMENT
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 thermal-overload conditions. Thermal protection protects the
MAX6765–MAX6774B in the event of a fault condition.
Never exceed the absolute maximum junction temperature rating of TJ = +150°C. See Figures 3 and 4 for the
safe operating area.
Applications Information
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 presetvoltage 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-divider 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.
VMON
VIN
IN
R3
MAX6769
MAX6770
RESETIN
R4
RESET
GND
Output-Voltage Selection
The
MAX6767–MAX6774B
feature
dual-mode
operation and operate in either a preset or adjustable
www.maximintegrated.com
Figure 2. RESETIN Threshold Selection
Maxim Integrated │ 17
Automotive Micropower Linear Regulators
with Supervisor
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 voltage 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 temperature 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]
2.2
1.904W
2.0
DERATE 23.8mW/°C
ABOVE +70°C
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) output capacitor with an ESR < 0.5Ω. To reduce noise and
improve load-transient response, stability, and powersupply 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 capacitor 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.
2.2
1.8
1.6
1.6
1.4
1.2
1.0
1.4
1.2
1.0
SAFE OPERATING
AREA
0.8
0.6
0.4
0.2
0.4
0.2
0
20
40
60
80
100 120 140 160
TEMPERATURE (°C)
Figure 3. Maximum Power Dissipation vs. Temperature
(MAX6765/MAX6766)
www.maximintegrated.com
DERATE 24.4mW/°C
ABOVE +70°C
SAFE OPERATING
AREA
0.8
0.6
0
1.951W
2.0
PD (W)
PD (W)
1.8
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.
MAX6765 fig03
Also, IOUT should be ≤ 100mA in any case.
Selecting Timeout Capacitor
MAX6765 fig04
MAX6765–MAX6774
0
0
20
40
60
80
100 120 140 160
TEMPERATURE (°C)
Figure 4. Maximum Power Dissipation vs. Temperature
(MAX6767–MAX6774B)
Maxim Integrated │ 18
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Ensuring a Valid RESET Output Down to
VIN = 0V (MAX6766/MAX6768/MAX6770/
MAX6772/MAX6774/MAX6774B)
VIN
When VIN falls below 1V, RESET current-sinking capabilities 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 recommended for applications requiring valid logic for VIN down to 0V.
IN
MAX6766
MAX6768
MAX6770
MAX6772
MAX6774
MAX6774B
RESET
GND
Figure 5. Ensuring RESET Valid to VIN = 0V
Table 4. Standard Version Part Numbers
PART
MAX6765TTLD2+T
MAX6765TTLD2/V+T
MAX6765TTSD2+T
MAX6765TTSD2/V+T
MAX6766TTLD2+T
MAX6766TTSD2+T
MAX6767TALD2+T
MAX6767TALD2/V+T
MAX6767TASD2+T
MAX6768TALD2+T
MAX6768TASD2+T
MAX6769TALD2+T
MAX6769TASD2+T
MAX6769TALD2/V+T
MAX6770TALD2+T
MAX6770TASD2+T
MAX6771TALD2+T
MAX6771TASD2+T
MAX6772TALD2+T
MAX6772TASD2+T
MAX6773TALD2+T
MAX6773TASD2+T
MAX6773BTALD2+T
MAX6773BTASD2+T
MAX6773BTASD2/V+T
MAX6774TALD2+T
MAX6774TASD2+T
MAX6774BTALD2+T
MAX6774BTASD2+T
www.maximintegrated.com
OUTPUT
VOLTAGE (V)
RESET
TIMEOUT
PERIOD (ms)
RESET
THRESHOLD
(V)
RESETIN
THRESHOLD
(V)
TOP MARK
5
5
3.3
3.3
5
3.3
5
5
3.3
5
3.3
5
3.3
5
5
3.3
5
3.3
5
3.3
5
3.3
5
3.3
3.3
5
3.3
5
3.3
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
4.625
4.625
2.888
2.888
4.625
2.888
4.625
4.625
2.888
4.625
2.888
—
—
—
—
—
4.625
2.888
4.625
2.888
4.625
2.888
4.625
2.888
2.888
4.625
2.888
4.625
2.888
—
—
—
—
—
—
—
—
—
—
—
1.147
1.085
1.147
1.147
1.085
—
—
—
—
—
—
—
—
—
—
—
—
—
+AQB
+AVC
+AQL
+AUQ
+ARO
+ARZ
+AVI
+BRK
+AVS
+AVZ
+AXE
+AYH
+AYQ
+BQF
+AZS
+BAC
+BEG
+BEQ
+APY
+BGC
+BBG
+AQE
+BHK
+BHU
+BNN
+BCS
+BDC
+BIY
+BJI
Maxim Integrated │ 19
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Selector Guide
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
—
PART
Typical Application Circuit
OUT
MAX6766
IN
12V
BATTERY
GND
ENABLE
VCC
TIMEOUT
µC
RESET
TXD
RXD
XCVR
LIN
RESET
I/O
www.maximintegrated.com
Maxim Integrated │ 20
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Pin Configurations (continued)
TIMEOUT
SET
RESET
OUT
TIMEOUT
SET
RESET
TOP VIEW
OUT
TOP VIEW
8
7
6
5
8
7
6
5
MAX6767
MAX6768
MAX6769
MAX6770
EP
2
3
4
1
2
GND
ENABLE
HOLD
IN
GND
TDFN
TDFN
TIMEOUT
SET
RESET
OUT
TIMEOUT
SET
RESET
TOP VIEW
8
7
6
5
8
7
6
5
MAX6773
MAX6773B
MAX6774
MAX6774B
MAX6771
MAX6772
EP
1
2
3
4
1
2
3
4
ENABLE1
ENABLE2
IN
GND
ENABLE
WDI
EP
GND
+
IN
+
TDFN
www.maximintegrated.com
4
OUT
TOP VIEW
3
ENABLE
1
IN
+
RESETIN
EP
+
TDFN
Maxim Integrated │ 21
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Ordering Information (continued)
PART
TEMP
RANGE
PINPACKAGE
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*
Chip Information
PROCESS: BiCMOS
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 complete the part number. Tape-and-reel orders are available in
2.5k increments. Nonstandard versions require a 10k minimum
order quantity.
www.maximintegrated.com
Maxim Integrated │ 22
MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
CHANGED
0
10/06
Initial release
1
1/07
Introduced MAX6765 and MAX6766
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 Configurations.
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.
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
10
11/18
Updated Package Information section
2, 22
DESCRIPTION
—
1, 21, 23
1, 4, 8, 9, 14,
16, 18–23
4, 17, 21
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.
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 specifications 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.
© 2018 Maxim Integrated Products, Inc. │ 23
工商网监
湘ICP备2023018690号
