19-3878; Rev 1; 7/06
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
Features
The MAX5086 high-voltage linear regulator operates
from a 6.5V to 65V input voltage and delivers up to a
250mA output current. The device consumes only 70µA
of quiescent current with no load and 13µA in shutdown. The device includes a SET input, that when connected to ground, selects a preset output voltage of
3.3V (MAX5086A) or 5.0V (MAX5086B). Alternatively,
the output voltage can be adjusted from 2.5V to 11V by
simply connecting SET to the regulator’s output through
a resistive divider network. The MAX5086 also provides
an open-drain, active-low microprocessor reset output
that asserts when the regulator output drops below the
preset output voltage threshold. An external capacitor
programs the reset timeout period. Other features
include an enable input, thermal shutdown, and shortcircuit protection.
The MAX5086 operates over the automotive temperature range of -40°C to +125°C and is available in a
16-pin or a 56-pin TQFN thermally enhanced package.
♦ Wide Operating Input Voltage Range (6.5V to 65V)
♦ Thermally Enhanced Package Dissipates
2.6W at TA = +70°C (16-Pin TQFN)
3.8W at TA = +70°C (56-Pin TQFN)
♦ Guaranteed 250mA Output Current
♦ 70µA Quiescent Supply Current
♦ Preset 3.3V, 5.0V, or Adjustable 2.5V to 11V
Output Voltage
♦ Remote Load Sense
♦ Integrated Microprocessor Reset Circuit with
Programmable Timeout Period
♦ Thermal and Short-Circuit Protection
♦ -40°C to +125°C Operating Temperature Range
Applications
Ordering Information
PART
PIN-PACKAGE
OUTPUT
VOLTAGE
(V)
PKG
CODE
3.3
T1655-2
MAX5086AATE+
16 TQFN-EP*
Automotive
MAX5086AATE
16 TQFN-EP*
3.3
T1655-2
Industrial
MAX5086AATN+
56 TQFN-EP*
3.3
T5688-3
Home Security/Safety
MAX5086AATN
56 TQFN-EP*
3.3
T5688-3
Note: All devices specified over the -40°C to +125°C operating
temperature range.
+Denotes lead-free package.
*EP = Exposed paddle.
Networking
Ordering Information continued at end of data sheet.
SET
11
10
9
SET
RESET
CT
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
41 40 39 38
N.C.
N.C.
N.C.
N.C.
42
37 36 35 34 33 32 31 30 29
N.C. 43
28
N.C.
N.C. 44
27
N.C.
N.C. 45
26
N.C.
N.C. 46
25
N.C.
N.C. 47
24
GND
N.C. 48
23
OUTSENSE
N.C. 49
22
OUT
21
OUT
N.C.
13
8
GND
N.C.
14
7
OUTSENSE
6
OUT
N.C. 50
5
OUT
N.C. 51
20
N.C.
N.C. 52
19
N.C.
4
N.C. 53
18
N.C.
IN
CT
12
RESET
N.C.
TOP VIEW
N.C.
Pin Configurations
N.C. 54
17
IN
N.C. 55
16
IN
15
N.C.
7
8
9
10 11 12 13 14
EN
6
N.C.
5
N.C.
4
N.C.
3
N.C.
2
N.C.
1
N.C.
+
N.C.
N.C. 56
N.C.
TQFN
N.C.
3
N.C.
2
N.C.
1
N.C.
+
N.C.
16
MAX5086
N.C.
N.C.
IN
15
EN
N.C.
MAX5086
TQFN
________________________________________________________________ Maxim Integrated Products
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.
1
MAX5086
General Description
MAX5086
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
ABSOLUTE MAXIMUM RATINGS
IN to GND (do not exceed
package power dissipation)................................-0.3V to +70V
IN to GND (T ≤ 300ms, IOUT ≤ 250mA) ..................-0.3V to +42V
EN to GND..............................................................-0.3V to +70V
CT, RESET, SET, OUT, OUTSENSE to GND ..........-0.3V to +12V
IN to OUT................................................................-0.3V to +70V
Short-Circuit Duration (VIN < 16V) .............................Continuous
Maximum Current into Any Pin (except IN, OUT).............±20mA
Continuous Power Dissipation (TA = +70°C)
16-Pin TQFN (derate 33.3mW/°C above +70°C) .......2666mW
56-Pin TQFN (derate 47.6mW/°C above +70°C) .......3809mW
Thermal Resistance:
(θJA, 16-Pin TQFN)....................................................30.0°C/W
(θJC, 16-Pin TQFN)......................................................1.7°C/W
(θJA, 56-Pin TQFN)....................................................21.0°C/W
(θJC, 56-Pin TQFN)......................................................0.6°C/W
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°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.
ELECTRICAL CHARACTERISTICS
(VIN = 14V, IOUT = 1mA, CIN = 10µF, COUT = 15µF, VEN = 2.4V, 10kΩ from RESET to OUT, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical specifications are at TA = +25°C.) (Note 1)
PARAMETER
Input Voltage Range
Supply Current
Shutdown Supply Current
SYMBOL
VIN
IQ
ISHDN
CONDITIONS
VIN ≥ VOUT + 1.5V
Measured at GND,
SET = GND
MIN
TYP
MAX
UNITS
65
V
70
115
6.5
IOUT = 0
IOUT = 250mA
1250
VEN ≤ 0.4V
13
21
µA
µA
REGULATOR
Guaranteed Output Current
IOUT
VIN = 6.5V, VOUT = 5.0V
SET = GND,
5V Version
Output Voltage (Note 2)
VOUT
SET = GND,
3.3V version
∆VDO
Startup Response Time (Note 4)
Line Regulation
∆VOUT /
∆VIN
Enable Voltage
VEN
2
mA
4.85
5
5.15
6.5V ≤ VIN ≤ 65V,
5mA ≤ IOUT ≤ 100mA
4.85
5
5.15
6.5V ≤ VIN ≤ 25V,
5mA ≤ IOUT ≤ 250mA
3.217
3.3
3.392
6.5V ≤ VIN ≤ 65V,
5mA ≤ IOUT ≤ 100mA
3.217
3.3
3.392
IOUT = 5mA, adjustable range
Dropout Voltage (Note 3)
250
6.5V ≤ VIN ≤ 25V,
5mA ≤ IOUT ≤ 250mA
2.5
11.0
IOUT = 250mA, VOUT = 5V
0.9
Rising edge of VIN to VOUT,
RL = 500Ω, SET = GND
400
6.5V ≤ VIN ≤ 65V
5V version
3.3V version
VEN = high, regulator on
V
2.2
µs
-1
+1
-0.5
+0.8
2.4
VEN = low, regulator off
_______________________________________________________________________________________
V
0.4
mV/V
V
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
(VIN = 14V, IOUT = 1mA, CIN = 10µF, COUT = 15µF, VEN = 2.4V, 10kΩ from RESET to OUT, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical specifications are at TA = +25°C.) (Note 1)
PARAMETER
Enable Input Current
SET Reference Voltage
SET Input Leakage Current
SYMBOL
IEN
VEN = 2.4V
0.38
VEN = 14V
3.75
MAX
UNITS
µA
1.235
1.26
V
ISET
-100
-1.5
100
nA
0.045
0.4
Ω
PSRR
Short-Circuit Current (Note 5)
ISC
Thermal Shutdown Hysteresis
TYP
1.20
Power-Supply Rejection Ratio
Thermal Shutdown Temperature
MIN
VSET
∆VOUT /
∆IOUT
Load Regulation
CONDITIONS
IOUT = 1mA to 250mA
IOUT = 10mA, f = 100Hz, 500mVP-P,
VOUT = 5V
-54
dB
VIN < 16V
440
mA
TJ(SHDN)
175
°C
∆TJ(SHDN)
25
°C
RESET Voltage Threshold
VRESET
RESET Threshold Hysteresis
VRHYST
RESET Output Low Voltage
VRL
ISINK = 1mA
0.4
V
RESET Output Leakage Current
IRH
VRESET = 5V
1
µA
89.91
92
94.10
2
% VOUT
% VOUT
RESET Output Minimum Timeout
Period
When VOUT reaches RESET threshold,
CCT = Open
15
µs
ENABLE to RESET Minimum
Timeout Period
When EN goes high, CCT = open
169
µs
Delay Comparator Threshold
(Rising)
1.196
Delay Comparator Threshold
Hysteresis
CT Charge Current
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
1.264
100
1
CT Discharge Current
1.23
2.26
V
mV
4
5
µA
mA
Limits at -40°C are guaranteed by design.
Output voltage is tested using a pulsed load current of less than 50ms duration.
Dropout voltage is defined as (VIN - VOUT) when VOUT is 100mV below the value of VOUT for VIN = VOUT + 3V.
Startup time measured from 50% of VIN to 90% of VOUT.
Continuous short-circuit protection for VIN > 16V not guaranteed.
_______________________________________________________________________________________
3
MAX5086
ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics
(VIN = VEN = 14V, CIN = 10µF, COUT = 15µF, VOUT = 5V, SET = GND, TA = +25°C, unless otherwise specified.)
NO-LOAD SUPPLY CURRENT
vs. TEMPERATURE
5.0
4.5
140
16
14
2.5
100
80
2.0
60
1.5
40
10
8
4
2
0
0
12
6
VIN = +6.5V
20
IOUT = 0
0.5
ISHDN (µA)
IGND (µA)
0
0 5 10 15 20 25 30 35 40 45 50 55 60 65
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125 140
VIN (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
OUTPUT VOLTAGE
vs. TEMPERATURE
GROUND CURRENT
vs. TEMPERATURE
OUTPUT VOLTAGE
vs. LOAD CURRENT AND TEMPERATURE
2.5
5.10
IGND (mA)
5.00
4.95
IOUT = 50mA
IOUT = 250mA
1.5
4.85
5.00
4.90
IOUT = 250mA
4.85
4.80
IOUT = 5mA
4.75
5.05
IOUT = 50mA
IOUT = 100mA
4.95
0.5
4.80
VIN = +6.5V
5.15
5.10
1.0
4.90
5.20
IOUT = 100mA
2.0
5.05
5.25
MAX5086 toc06
5.15
VIN = +6.5V
VOUT (V)
5.20
MAX5086 toc05
3.0
MAX5086 toc04
5.25
0
4.75
-40 -25 -10 5 20 35 50 65 80 95 110 125 140
-40 -25 -10 5 20 35 50 65 80 95 110 125 140
-40 -25 -10 5 20 35 50 65 80 95 110 125 140
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
DROPOUT VOLTAGE
vs. LOAD CURRENT
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
LOAD-TRANSIENT RESPONSE
1.35
1.20
MAX5086 toc09
0
MAX5086 toc07
1.50
MAX5086 toc08
VOUT (V)
3.0
1.0
VOUT (V)
18
VIN = +14V
3.5
COUT = 15µF
IOUT = 10mA
-10
-20
1.05
PSRR (dB)
0.90
0.75
0.60
0.45
0.30
VOUT
200mV/div
-30
-40
-50
IOUT
250mA
-60
5mA
-70
0.15
VOUT = +5V
0
-80
0
25 50 75 100 125 150 175 200 225 250
IOUT (mA)
4
VIN = +65V
120
4.0
20
MAX5086 toc02
160
MAX5086 toc01
5.5
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX5086 toc03
OUTPUT VOLTAGE vs.
INPUT VOLTAGE
VDROPOUT (V)
MAX5086
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
0.1
1
10
100
1000
400µs/div
FREQUENCY (kHz)
_______________________________________________________________________________________
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
INPUT VOLTAGE STEP RESPONSE
STARTUP RESPONSE
MAX5086 toc10
ENABLE STARTUP RESPONSE
MAX5086 toc11
IOUT = 50mA
MAX5086 toc12
IOUT = 5mA
VOUT
AC-COUPLED
500mV/div
0V
EN
1V/div
VOUT
2V/div
0V
0V
26V
VIN
10V/div
6.5V
VOUT
2V/div
VIN
10V/div
0V
0V
400µs/div
400µs/div
ENABLE STARTUP RESPONSE
100µs/div
ENABLE STARTUP RESPONSE
MAX5086 toc13
ENABLE STARTUP RESPONSE
MAX5086 toc14
EN
1V/div
MAX5086 toc15
EN
1V/div
EN
1V/div
0V
0V
0V
VOUT
2V/div
VOUT
2V/div
VIN = 14V
IOUT = 250mA
0V
VIN = 14V
IOUT = 0
0V
VOUT
2V/div
VIN = 65V
IOUT = 0
0V
VIN = 65V
IOUT = 250mA
0V
100µs/div
100µs/div
100µs/div
SHUTDOWN RESPONSE
GROUND CURRENT DISTRIBUTION
(TA = -40°C)
GROUND CURRENT DISTRIBUTION
(TA = +125°C)
40
138 UNITS TESTED
35
EN
1V/div
VOUT
2V/div
25
20
15
25
20
15
10
10
5
5
0
0
20ms/div
138 UNITS TESTED
35
30
30
NUMBER OF UNITS
0V
40
NUMBER OF UNITS
0V
MAX5086 toc17
MAX5086 toc16
IOUT = 5mA
MAX5086 toc18
0V
64 65 66 67 68 69 70 71 72 73 74
65 66 67 68 69 70 71 72 73 74
IGND (µA)
IGND (µA)
_______________________________________________________________________________________
5
MAX5086
Typical Operating Characteristics (continued)
(VIN = VEN = 14V, CIN = 10µF, COUT = 15µF, VOUT = 5V, SET = GND, TA = +25°C, unless otherwise specified.)
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
MAX5086
Pin Description
PIN
6
NAME
FUNCTION
16-PIN TQFN
56-PIN TQFN
1, 12–16
1–13, 15,
18, 19, 20,
25–28, 32–56
N.C.
2
14
EN
Enable Input. Drive EN high to turn on the regulator. Force EN low to place the
device in shutdown mode.
3, 4
16, 17
IN
Regulator Input. Supply voltage ranges from 6.5V to 65V. Bypass IN to GND with a
10µF capacitor.
5, 6
21, 22
OUT
7
23
OUTSENSE
8
24
GND
Ground
9
29
SET
Feedback Regulation Set Point. Connect SET to GND for a fixed 3.3V output
(MAX5086A) or 5.0V output (MAX5086B). Connect an external resistive divider network
from OUTSENSE to SET to GND to adjust the output voltage from 2.5V to 11V.
10
30
RESET
Open-Drain Active-Low Reset Output. Connect a 10kΩ pullup resistor from RESET
to any supply voltage up to 11V to create a logic output.
11
31
CT
Reset Timeout Setting Connection. A 2µA charging current is available at CT.
Connect a capacitor from CT to GND to set the reset timeout period (see the
Adjustable Reset Timeout Period (CT) section).
EP
EP
EP
Exposed Pad. Connect externally to a large ground plane to aid heat dissipation.
Do not use EP as the only ground connection.
No Connection. Not internally connected.
Regulator Output. Connect at least a 15µF low-ESR capacitor from OUT to GND.
Regulator Output Feedback Point. OUTSENSE must be connected to OUT for fixed
output voltage versions. Leave OUTSENSE open circuit for adjustable output
voltage version.
_______________________________________________________________________________________
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
MAX5086
IN
ERROR
AMPLIFIER
MAX5086
OUT
VREF
CONTROL LOGIC,
THERMAL SHUTDOWN,
AND
OVERCURRENT
PROTECTION
OUTSENSE
MUX
EN
INTERNAL
SUPPLY VOLTAGE
SET
2µA
CT
DELAY
COMPARATOR
CT
COMPARATOR
RESET
0.92 x VREF
GND
Figure 1. Functional Diagram
_______________________________________________________________________________________
7
MAX5086
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
Detailed Description
The MAX5086 high-voltage linear regulator includes an
integrated microprocessor reset circuit with an
adjustable reset timeout period (see the Adjustable
Reset Timeout Period (CT) section). The device guarantees a 250mA load current and is available with a preset output voltage of 3.3V (MAX5086A) or 5V
(MAX5086B). Both devices can be configured to provide an adjustable output voltage from 2.5V to 11V. The
internal reset circuit monitors the regulator output voltage and asserts RESET low when the regulator output
falls below the reset threshold voltage. Other features
include an enable (regulator control input), 21µA (max)
shutdown current, short-circuit protection (see the
Output Short-Circuit Current Limit section), and thermal
shutdown (see the Thermal Protection section).
6.5V TO 65V
2.5V TO 11V
OUT
IN
15µF
10µF
R1
MAX5086
ON
EN
OFF
OUTSENSE
TO µP
RESET
SET
CT
CCT
R3
GND
R2
VOUT = VSET (1 + R1/R2)
VSET = 1.23V
Regulator
The MAX5086 accepts an input voltage range from
6.5V to 65V and offers a fixed output voltage of 3.3V or
5V. For an adjustable output voltage operation, use an
external resistive divider network connected between
OUT, SET, and GND (see Figure 2).
Enable Input (EN)
EN is a logic-level enable input that turns ON/OFF the
device. Drive EN high to turn on the device and drive
EN low to place the device in shutdown. The MAX5086
draws 13µA (typ) of supply current when in shutdown.
EN withstands voltages up to +65V, allowing EN to be
connected to IN for an always-on operation.
Remote Sensing (OUTSENSE)
For fixed output voltage versions, OUTSENSE must be
used for load voltage sensing. Leave OUTSENSE open
circuit when using adjustable output voltage version.
Reset Output (RESET)
A supervisor circuit is fully integrated in the MAX5086
and uses the same reference voltage as the regulator.
RESET goes low if VOUT drops below the preset output
voltage threshold, and remains low at least for the timeout period after VOUT rises above the reset voltage
threshold.
Figure 2. Setting the Adjustable Output Voltage
timeout period (see Figure 2) and use the following
equation to calculate the timeout period:
tRP = CCT x 0.6175 x 106
where CCT is the value of the external capacitor connected from CT to GND and tRP is in seconds.
Thermal Protection
When the junction temperature exceeds TJ = 175°C an
internal thermal sensor signals the shutdown logic,
which turns off the pass transistor, allowing the IC to
cool. The thermal sensor turns the pass transistor on
again after the IC’s junction temperature cools by 25°C,
resulting in a cycled output during continuous thermaloverload conditions. Thermal protection protects the
MAX5086 in the event of fault conditions. During continuous operation, do not exceed the absolute maximum
junction temperature rating of TJ = +150°C.
Output Short-Circuit Current Limit
The MAX5086 features a current limit. The output can
be shorted to GND for an indefinite period of time (for
VIN < 16V) without damage to the device.
Adjustable Reset Timeout Period (CT)
The MAX5086 features a user-adjustable reset timeout.
Connect a capacitor from CT to GND to set the reset
8
_______________________________________________________________________________________
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
MAX5086
Applications Information
4.0
3.809W
(56-PIN TQFN)
3.5
DERATE
47.6mW/°C
3.0
PD (W)
2.5
MAX5087 fig03
Output Voltage Selection
The MAX5086 features dual-mode operation, in either a
preset voltage mode or an adjustable mode. In preset
voltage mode, internal feedback resistors set the
MAX5086’s output voltage to +3.3V or +5V. Select preset voltage mode by connecting SET to ground. In
adjustable mode, select an output between +2.5V and
+11V using two external resistors connected as a voltage-divider to SET (Figure 2). Set the output voltage
using the following equation:
2.666W
(16-PIN TQFN)
2.0
1.5
DERATE
33.3mW/°C
1.0
R1
VOUT = VSET x 1 +
R2
0.5
0
0
20
where VSET = 1.23V and R2 is chosen to be approximately 100kΩ.
Available Output Current Calculation
The MAX5086 high-voltage regulator provides up to
250mA of output current. The input voltage extends to
+65V. Package power dissipation limits the amount of
output current available for a given input/output voltage
and ambient temperature. Figure 3 depicts the maximum power dissipation curve for these devices. The
graph assumes that the exposed pad of the MAX5086
package is set up per JEDEC specifications.
Use Figure 3 to determine the allowable package dissipation (P D ) for a given ambient temperature.
Alternately, use the following formulas to calculate the
allowable package dissipation:
For the 56-pin TQFN package:
3.809W for TA ≤ + 70°C
W
PD = 3.809W − 0.0476
x (TA − 70°C)
°
C
For + 70°C < TA ≤ + 125°C
For the 16-pin TQFN package:
2.666W for TA ≤ + 70°C
W
PD = 2.666W − 0.0333
x (TA − 70°C)
°
C
For + 70°C < TA ≤ + 125°C
40
60
80
100 120 140
TEMPERATURE (°C)
Figure 3. Calculated Maximum Power Dissipation vs.
Temperature
After determining the allowable package dissipation
calculate the maximum output current using the following formula:
IOUT(MAX) ≅
PD
≤ 250mA
VIN − VOUT
The above equations do not include the negligible
power dissipation from self-heating due to the IC
ground current.
Example 1: MAX5086BATN
TA = +105°C
VIN = +14V
VOUT = +5V
Find the maximum allowable output current. First calculate package dissipation at the given temperature as
follows:
PD = 3.809W − 0.0476
W
(105°C − 70°C) = 2.143W
°C
Then determine the maximum output current:
IOUT(MAX) =
(2.143W)
= 238mA
(14V) − (5V)
_______________________________________________________________________________________
9
Example 2: MAX5086AATN
TA = +125°C
VIN = +14V
VOUT = +3.3V
0.30
0.25
W
(125°C − 70°C) = 1.191W
°C
IOUT(MAX) (A)
Calculate package dissipation at the given temperature
as follows:
PD = 3.809W − 0.0476
VOUT = 5V
(56-PIN TQFN)
MAX5086 fig04A
MAXIMUM OUTPUT CURRENT
vs. INPUT VOLTAGE
TA = +70°C
TA = +85°C
TA = +125°C
0.20
0.15
0.10
And establish the maximum current:
0.05
(1.191W)
IOUT(MAX) =
= 111.3mA
(14V) − (3.3V)
0 5 10 15 20 25 30 35 40 45 50 55 60 65
VIN (V)
Figure 4a. Maximum Output Current vs. Input Voltage (56-Pin
TQFN)
Calculate package dissipation at the given temperature
as follows:
PD = 3.809W
And find the maximum output current:
(3.809W)
IOUT(MAX) =
= 423.2mA ⇒ IOUT(MAX) = 250mA
(14V) − (5V)
In Example 3, the maximum output current is calculated
as 423mA, however, the maximum output current cannot exceed 250mA.
Use Figures 4a and 4b to quickly determine maximum
allowable output current for selected ambient temperatures.
MAXIMUM OUTPUT CURRENT
vs. INPUT VOLTAGE
0.30
VOUT = 5V
(16-PIN TQFN)
0.25
MAX5086 fig04B
Example 3: MAX5086BATN
TA = +50°C
VIN = +14V
VOUT = +5V
0
IOUT(MAX) (A)
MAX5086
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
TA = +70°C
TA = +85°C
TA = +125°C
0.20
0.15
0.10
0.05
0
0 5 10 15 20 25 30 35 40 45 50 55 60 65
VIN (V)
Output Capacitor Selection and
Regulator Stability
For stable operation over the full temperature range
and with load currents up to 250mA, use a 15µF (min)
output capacitor with an ESR < 0.25Ω. To reduce noise
and improve load-transient response, stability, and
power-supply rejection, use larger output capacitor values such as 22µF.
Some ceramic capacitor dielectrics exhibit large
capacitance and ESR variation with temperature. For
capacitor dielectrics such as Y5V, use 22µF or more
to ensure stability at temperatures below -10°C. With
X7R or X5R dielectrics, 15µF should be sufficient at all
10
Figure 4b. Maximum Output Current vs. Input Voltage (16-Pin
TQFN)
operating temperatures. To improve power supply
rejection and transient response, use a minimum 10µF
capacitor from IN to GND.
______________________________________________________________________________________
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
PART
PIN-PACKAGE
OUTPUT
VOLTAGE
(V)
PKG
CODE
5.0
T1655-2
MAX5086BATE+
16 TQFN-EP*
MAX5086BATE
16 TQFN-EP*
5.0
T1655-2
MAX5086BATN+
56 TQFN-EP*
5.0
T5688-3
MAX5086BATN
56 TQFN-EP*
5.0
T5688-3
MAX5086
Ordering Information (continued)
Note: All devices specified over the -40°C to +125°C operating
temperature range.
+Denotes lead-free package.
*EP = Exposed paddle.
Chip Information
TRANSISTOR COUNT: 1386
PROCESS: BiCMOS
______________________________________________________________________________________
11
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.)
QFN THIN.EPS
MAX5086
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
12
______________________________________________________________________________________
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
______________________________________________________________________________________
13
MAX5086
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.)
MAX5086
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
PACKAGE OUTLINE
56L THIN QFN, 8x8x0.8mm
21-0135
14
______________________________________________________________________________________
E
1
2
65V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
PACKAGE OUTLINE
56L THIN QFN, 8x8x0.8mm
21-0135
E
2
2
Revision History
Pages changed at Rev 1: 2, 15
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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15
© 2006 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products, Inc.
MAX5086
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.)
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