MAX5084/MAX5085
65V, 200mA, Low-Quiescent-Current
Linear Regulators in TDFN
General Description
The MAX5084/MAX5085 high-voltage linear regulators
operate from an input voltage range of 6.5V to 65V and
deliver up to 200mA of output current. These devices
consume only 50μA (typ) of quiescent current with no load
and 6μA (typ) in shutdown (EN pulled low). Both devices
include a SET input, which when connected to ground,
selects a preset output voltage of 5V (MAX5084) or
3.3V (MAX5085). Alternatively, the output voltage can be
adjusted from 2.54V to 11V by connecting the SET pin to
the regulator’s output through a resistive divider network.
The MAX5084/MAX5085 also include an OUT_SENSE
pin, which allows remote voltage sensing right at the
load, thus eliminating the voltage drop caused by the line
impedance. Both devices are short-circuit protected and
include thermal shutdown.
The MAX5084/MAX5085 operate over the -40°C to
+125°C automotive temperature range and are available
in a space-saving 3mm x 3mm thermally enhanced 6-pin
TDFN package.
Features
● Wide Operating Input Voltage Range (6.5V to 65V)
● Thermally Enhanced 3mm x 3mm 6-Pin TDFN
Package Dissipates 1.905W at +70°C
●
Guaranteed 200mA Output Current
● 50μA No-Load Supply Current
● Preset 3.3V, 5.0V, or Adjustable (from 2.54V to 11V)
Output Voltage
● Remote Load Sense
● Thermal and Short-Circuit Protection
●
-40°C to +125°C Operating Temperature Range
● SET Input for Adjustable Output Voltage
● Enable Input
Ordering Information
PART
MAX5084ATT+T
MAX5085ATT+T
PIN-
PACKAGE
6 TDFN-EP*
6 TDFN-EP*
TOP MARK
AJI
AJJ
Applications
●
Industrial
●
Home Security
● Telecom/Networking
Note:
All devices are specified over the -40°C to +125°C oper-
ating temperature range.
*EP
= Exposed paddle.
+Denotes
lead-free package.
Selector Guide appears at end of data sheet.
Typical Operating Circuit
V
IN
= 6.5V
TO 65V
IN
10F
OUT
5V (MAX5084)
3.3V (MAX5085)
10F
Pin Configuration
OUT_SENSE
TOP VIEW
OUT
MAX5084
MAX5085
EN
OUT_SENSE
6
5
MAX5084
MAX5085
LOAD
GND
SET
+
1
IN
2
EN
TDFN
19-3928; Rev 2; 5/14
GND
SET
4
3
MAX5084/MAX5085
65V, 200mA, Low-Quiescent-Current
Linear Regulators in TDFN
Absolute Maximum Ratings
IN to GND
..............................................................-0.3V to +80V
EN to GND
............................................................-0.3V to +80V
SET, OUT, OUT_SENSE
to GND
..............-0.3V
to the lesser of (V
IN
+ 0.3V) or +13.2V
OUT_SENSE to OUT
...........................................-0.3V to +0.3V
Short-Circuit Duration (V
IN
≤ 65V)
............................Continuous
Maximum Current into Any Pin (except IN and OUT)
......±20mA
Continuous Power Dissipation (T
A
= +70°C)
6-Pin TDFN-EP (derate 23.8mW/°C above +70°C).... 1904.8mW*
*As
per JEDEC51 Standard (Multilayer Board).
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.
Thermal Resistance:
θ
JA
...................................................................................42°C/W
θ
JC
..................................................................................8.5°C/W
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
Electrical Characteristics
(V
IN
= 14V, I
OUT
= 1mA, C
IN
= C
OUT
= 10μF, V
EN
= 2.4V, T
A
= T
J
= -40°C to +125°C, unless otherwise noted. Typical specifications
are at T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
Input Voltage Range
Supply Current
Shutdown Supply Current
REGULATOR
Guaranteed Output Current
I
OUT
V
OUT
= V
OUT(NOM)
±4%
V
IN
= 9V to 16V, SET = GND, I
OUT
= 5mA to 200mA,
OUT_SENSE connected to OUT (MAX5084)
V
IN
= 6.5V to 21V, SET = GND, I
OUT
= 5mA to
50mA, OUT_SENSE connected to OUT (MAX5084)
V
IN
= 9V to 16V, SET = GND, I
OUT
= 5mA to 50mA,
OUT_SENSE connected to OUT (MAX5084)
V
IN
= 6.5V, SET = GND, I
OUT
= 1mA to 200mA,
OUT_SENSE connected to OUT (MAX5084)
Output Voltage Range
Dropout Voltage
Startup Response Time
ΔV
DO
I
OUT
= 5mA, adjustable output
I
OUT
= 200mA, V
OUT
= 5V, MAX5084 (Note 2)
Rising edge of VIN to rising edge of V
OUT
,
R
L
= 500Ω (Note 3)
ΔV
OUT
/
ΔV
IN
V
IN
from 8V to 65V
V
IN
from 14V to 65V
MAX5084, SET = GND
MAX5085, SET = GND
Adjustable output from
2.54V to 11V
-1
-0.5
-0.5
200
4.8
4.85
4.9
3.168
5.24
0.9
400
+1
+0.5
+0.5
mv/V
3.300
5.0
5.0
5.2
5.15
V
5.1
3.432
11.0
1.5
V
V
µs
mA
SYMBOL
V
IN
I
Q
I
SHDN
CONDITIONS
V
IN
> V
OUT
+ 1.5V
Measured at GND,
SET = GND
V
EN
≤ 0.4V
I
OUT
= 0
I
OUT
= 100μA
I
OUT
= 200mA
MIN
6.5
51
51
2
6
TYP
MAX
65.0
140
140
4
16
UNITS
V
µA
mA
µA
Output Voltage Accuracy
V
OUT
Line Regulation
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Maxim Integrated
│
2
MAX5084/MAX5085
65V, 200mA, Low-Quiescent-Current
Linear Regulators in TDFN
Electrical Characteristics (continued)
(V
IN
= 14V, I
OUT
= 1mA, C
IN
= C
OUT
= 10μF, V
EN
= 2.4V, T
A
= T
J
= -40°C to +125°C, unless otherwise noted. Typical specifications
are at T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
Enable Voltage
SYMBOL
V
EN
Regulator on
Regulator off
V
EN
= 2.4V
Enable Input Current
OUT to OUT_SENSE
Internal Resistor
SET Reference Voltage
SET Input Leakage Current
I
EN
R
OUT_
SENSE
CONDITIONS
MIN
2.4
TYP
MAX
0.4
UNITS
V
0.5
4
14
8
1.220
-100
MAX5084, SET = GND
MAX5085, SET = GND
Adjustable output from
2.54V to 11V
15
1.251
+1
0.3
0.3
0.5
55
220
340
340
+160
10
1
8
35
24
1.280
+100
1
1
2
dB
500
mA
°C
°C
mV/mA
Ω
V
nA
µA
V
EN
= 14V
V
EN
= 65V
I
OUT_SENSE
= 10mA
I
OUT
= 10mA
V
SET
= 1.251V
IOUT from 1mA to
200mA, OUT_SENSE
= OUT
V
SET
I
SET
ΔV
OUT
/
ΔI
OUT
Load Regulation
Power-Supply Rejection
Ratio
Short-Circuit Current
Thermal Shutdown
Thermal Shutdown
Hysteresis
PSRR
I
SC
T
SHDN
T
HYST
I
OUT
= 10mA, f = 100Hz, V
IN_RIPPLE
= 500mV
P-P
,
V
OUT
= 5V
V
IN
= 8V to 14V
V
IN
= 65V
Note 1:
Specifications at -40°C are guaranteed by design and not production tested.
Note 2:
Dropout voltage is defined as (V
IN
- V
OUT
) when V
OUT
is 100mV below the value of V
OUT
when V
IN
= V
OUT
+ 3V.
Note 3:
Startup time measured from 50% of V
IN
to 90% of V
OUT
.
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Maxim Integrated
│
3
MAX5084/MAX5085
65V, 200mA, Low-Quiescent-Current
Linear Regulators in TDFN
Typical Operating Characteristics
(V
IN
= 14V, C
IN
= C
OUT
= 10μF, V
EN
= V
IN
, T
A
= +25°C, unless otherwise noted.)
OUTPUT VOLTAGE
vs. INPUT VOLTAGE
5.0
4.5
4.0
I
GND
(µA)
V
OUT
(V)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
I
OUT
= 0
0 5 10 15 20 25 30 35 40 45 50 55 60 65
V
IN
(V)
MAX5084 toc01
MAX5084 toc02
90
80
70
50
40
30
20
10
0
60
V
IN
= 65V
V
IN
= 14V
9
8
7
I
GND
(µA)
6
5
4
3
2
1
0
V
IN
= 6.5V
-40 -25 -10 5 20 35 50 65 80 95 110 125 140
TEMPERATURE (°C)
-40 -25 -10 5 20 35 50 65 80 95 110 125 140
TEMPERATURE (°C)
MAX5084 toc04
5.20
5.15
5.10
V
OUT
(V)
5.05
5.00
4.95
4.90
4.85
4.80
4.75
I
OUT
= 10mA
I
OUT
= 1mA
MAX5084 toc05
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
I
OUT
= 100mA
I
OUT
= 50mA
I
OUT
= 200mA
5.20
5.15
5.10
V
OUT
(V)
5.05
5.00
4.95
4.90
4.85
4.80
4.75
I
OUT
= 200mA
I
OUT
= 100mA
I
OUT
= 50mA
I
GND
(A)
-40 -25 -10 5 20 35 50 65 80 95 110 125 140
TEMPERATURE (°C)
0
-40 -25 -10 5 20 35 50 65 80 95 110 125 140
TEMPERATURE (°C)
-40 -25 -10 5 20 35 50 65 80 95 110 125 140
TEMPERATURE (°C)
MAX5084 toc07
1.35
1.20
1.05
V
DROPOUT
(V)
0.75
0.60
0.45
0.30
0.15
0
10 30
50
0.90
V
OUT
= 5V
-10
-20
PSRR (dB)
-30
-40
-50
-60
-70
I
OUT
= 10mA
MAX5084 toc08
1.50
DROPOUT VOLTAGE
vs. LOAD CURRENT
0
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
LINE-TRANSIENT RESPONSE
MAX5084 toc09
70 90 110 130 150 170 190
I
OUT
(mA)
-80
0.1
1
10
FREQUENCY (kHz)
100
1000
400µs/div
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Maxim Integrated
│
4
MAX5084 toc06
5.25
OUTPUT VOLTAGE
vs. TEMPERATURE
2.25
GROUND CURRENT
vs. TEMPERATURE
5.25
OUTPUT VOLTAGE
vs. LOAD CURRENT AND TEMPERATURE
MAX5084 toc03
5.5
100
NO-LOAD GROUND CURRENT
vs. TEMPERATURE
10
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
I
OUT
100mA/div
0A
V
OUT
100mV/div
AC-COUPLED
MAX5084/MAX5085
65V, 200mA, Low-Quiescent-Current
Linear Regulators in TDFN
Typical Operating Characteristics (continued)
(V
IN
= 14V, C
IN
= C
OUT
= 10μF, V
EN
= V
IN
, T
A
= +25°C, unless otherwise noted.)
INPUT VOLTAGE STEP RESPONSE
MAX5084 toc10
STARTUP RESPONSE
I
OUT
= 10mA
V
IN
20V/div
0V
V
OUT
500mV/div
AC-COUPLED
MAX5084 toc11
ENABLE STARTUP RESPONSE
V
IN
= 14V
I
OUT
= 0
V
OUT
2V/div
0V
MAX5084 toc12
V
EN
1V/div
0V
V
IN
50V/div
0V
400µs/div
100µs/div
V
OUT
2V/div
0V
400µs/div
ENABLE STARTUP RESPONSE
V
IN
= 14V
I
OUT
= 200mA
MAX5084 toc13
ENABLE STARTUP RESPONSE
V
IN
= 65V
I
OUT
= 0
V
EN
1V/div
0V
MAX5084 toc14
ENABLE STARTUP RESPONSE
V
IN
= 65V
I
OUT
= 200mA
V
EN
1V/div
0V
MAX5084 toc15
V
EN
1V/div
0V
V
OUT
2V/div
0V
100µs/div
100µs/div
V
OUT
2V/div
0V
100µs/div
V
OUT
2V/div
0V
SHUTDOWN RESPONSE
MAX5084 toc16
MAX5084 toc17
V
IN
= 14V
I
OUT
= 10mA
NUMBER OF UNITS
0V
6
4
2
0
V
OUT
2V/div
0V
4ms/div
NUMBER OF UNITS
V
EN
1V/div
8
36 UNITS
TESTED
20
15
10
5
0
54 UNITS
TESTED
42
43
44
45
46
47
48
49
52
51
52
53
54
I
GND
(µA)
55
58
60
I
GND
(µA)
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Maxim Integrated
│
5
MAX5084 toc18
10
GROUND CURRENT DISTRIBUTION
(T
A
= -40°C)
25
GROUND CURRENT DISTRIBUTION
(T
A
= +125°C)
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