MAX17651 Datasheet by Analog Devices Inc./Maxim Integrated

MAX17651 4V to 60V, 100mA, Ultra-Low Quiescent Current, maxim Integrated ,,
General Description
The MAX17651 ultra-low quiescent current, high-voltage
linear regulator is ideal for use in industrial and battery-
operated systems. The device operates from a 4V to 60V
input voltage, delivers up to 100mA of load current, and
consumes only 8μA of quiescent current at no load. The
device consumes only 0.9μA current when in shutdown.
Output voltage is adjustable in the 0.6V to 58V voltage
range. Feedback voltage accuracy is ±2% over temperature.
An open-drain, active-low PGOOD pin provides a power-
good signal to the system upon achieving successful
regulation of the output voltage. The device also incorporates
an enable pin (EN) that allows the user to turn the part
on or off. The device has a thermal shutdown feature that
shuts down the part when the die temperature exceeds
165°C. The MAX17651 operates over the -40°C to
+125°C industrial temperature range and is available in a
6 lead, compact TSOT package.
Applications
Low-Current Industrial Power Supplies
Battery-Powered Equipment
Post Regulator for Switching Power Supplies
Utility Meters
Remote Sensors
Benefits and Features
Extremely Easy to Use
Only 4 External Components Required
Stable with Tiny 4.7μF, 0805 Output Capacitor
All Ceramic Capacitors, Compact Layout
Reduces Number of Linear Regulators to Stock
Wide 4V to 60V Input Voltage Range
Adjustable 0.6V to 58V Output
Up to 100mA Load Current Capability
Operates Reliably in Adverse Industrial Environments
Built-In Output Voltage Monitoring with PGOOD Pin
High-Voltage ENABLE Input
Low 8μA Quiescent Current
Low Dropout Voltage of 560mV at 100mA
Overload Protection
Overtemperature Protection
High Industrial -40°C to +125°C Ambient Operating
Temperature Range / -40°C to +150°C Junction
Temperature Range
Ordering Information appears at end of data sheet.
19-7454; Rev 3; 9/17
Application Circuit for 5V Output
V
OUT
R1
432kΩ
5V
R2
59kΩ
C
OUT
4.7µF
PGOOD
OUT
FB
CIN
0.1µF
EN
IN
GND
VOUT
5.5V TO 60V
MAX17651
MAX17651 4V to 60V, 100mA, Ultra-Low Quiescent Current,
Linear Regulator
Click here for production status of specific part numbers.
IN to GND .............................................................. -0.3V to +70V
EN, OUT to GND ............................................-0.3V to IN + 0.3V
FB, PGOOD to GND ...............................................-0.3V to +6V
Output Short-Circuit Duration .................................... Continuous
Operating Temperature Range (Note 1) ........... -40°C to +125°C
Junction Temperature ...................................................... +150°C
Storage Temperature Range ............................ -65°C to +160°C
Continuous Power Dissipation (TA = +70°C) (multilayer board)
TSOT (derate 9.1mW/°C above +70°C) ......................727mW
Lead Temperature (soldering 10s) ..................................+300°C
PACKAGE TYPE: 6 TSOT
Package Code Z6+1
Outline Number 21-0114
Land Pattern Number 90-0242
THERMAL RESISTANCE, FOUR-LAYER BOARD
Junction to Ambient (θJA) 110°C/W
Junction to Case (θJC) 50°C/W
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.
Note 1: Junction temperature greater than +125°C degrades operating lifetimes.
Absolute Maximum Ratings
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only; 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
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.
MAX17651 4V to 60V, 100mA, Ultra-Low Quiescent Current,
Linear Regulator
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(VIN = VEN = 12V, VFB = VOUT, PGOOD = OPEN, VGND = 0V,, COUT = 4.7µF TA = -40°C to +125°C, unless otherwise noted. Typical
values are at TA = +25°C. All voltages are referenced to GND, unless otherwise noted.) (Note 2)
Note 2: All electrical specifications are 100% production tested at TA = +25°C. Specifications over the operating temperature range
are guaranteed by design and characterization.
Electrical Characteristics
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT
INPUT SUPPLY (VIN)
Input Voltage Range VIN 4 60 V
Input Supply Current IIN-SH VEN = 0V, shutdown mode 0.9 1.8 µA
IIN-Q VEN = VIN, ILOAD = 0mA 8 15 µA
ENABLE (EN)
EN Threshold VENR VEN rising 2 V
VENF VEN falling 0.6 V
EN Leakage Current IEN TA = +25°C -100 +100 nA
FEEDBACK (FB)
FB Regulation Voltage VFB-REG 0.588 0.6 0.612 V
FB Input Leakage Current IFB VFB = 0.6V, TA = 25°C -25 +25 nA
CURRENT LIMIT
Current Limit Threshold ILIMIT V
IN
= 5.5V, V
OUT
= 4.5V 101 140 165 mA
PGOOD
PGOOD Rising Threshold VPGOOD-RISE VFB rising 89.5 92 94.5 %
PGOOD Falling Threshold VPGOOD-FALL VFB falling 87 89.5 92 %
PGOOD Output Level Low IPGOOD = 1mA 0.2 V
PGOOD Output leakage Current VPGOOD = 5.5V, TA = +25°C 1 µA
OUTPUT VOLTAGE
Dropout Voltage VDO VIN = 4.5V, ILOAD = 100mA 280 550 mV
Line Regulation VIN = 4V to 60V, VOUT = FB,
ILOAD = 1mA 0.1 %
Load Regulation 0.1mA < ILOAD < 100mA, VOUT = FB 0.5 1.2 %
THERMAL SHUTDOWN
Thermal-Shutdown Threshold Temperature rising 165 °C
Thermal-Shutdown Hysteresis 15 °C
MAX17651 4V to 60V, 100mA, Ultra-Low Quiescent Current,
Linear Regulator
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LOAD supp“ cum; sHumowu CHRRENTvs vs SUPPLY VDLYAGE SUPPLV voLuGE FIGURE 3 CIRCUI'I LOAD YRANS‘ENY RESPONSE OUTPUT VDLIAGE Vt.TEMPERATURE LOAD cuRRENr SYEPFED FIGUREscIRcUIT FROM1mAw5flmAFIGUREICIRCUW OUTPUTVOLTAGE vs. INPUTVOLTAGE 07+.»
(VIN = VEN = 6V, VOUT = 5V, COUT = 4.7µF TA= +25°C, unless otherwise noted.)
Typical Operating Characteristics
7.5
8
8.5
9
9.5
10
10.5
11
510 15 20 25 30 35 40 45 50 55 60
NO LOAD SUPPLY CURRENT(µA
)
INPUT VOLTAGE (V)
NO LOAD SUPPLY CURRENT
vs SUPPLY VOLTAGE
toc1
0
0.5
1
1.5
2
2.5
515 25 35 45 55
ISHDN (µA)
INPUT VOLTAGE (V)
SHUTDOWN CURRENT vs
SUPPLY VOLTAGE
toc2
+85°C
+25°C
-40°C
0
0.5
1
1.5
2
2.5
-50 -25 025 50 75 100 125 150
ISHDN (μA)
TEMPERATURE (°C)
SHUTDOWN SUPPLY CURRENT
VS. TEMPERATURE toc3
VIN = 24V VIN = 48V
VIN = 60V
VIN = 12V
VIN = 6V
+25°C
4.93
4.94
4.95
4.96
4.97
4.98
4.99
5
5.01
5.02
5.03
-40 -15 10 35 60 85 110
OUTPUT VOLTAGE (V)
TEMPERATURE(°)
toc7
I
LOAD
= 1mAI
LOAD
= 5mA
V
OUT
(AC)
LOAD TRANSIENT RESPONSE,
FROM 1mA to 50mA, FIGURE 3 CIRCUIT
85
87
89
91
93
95
-40 0 40 80 120
PGOOD THRESHOLD(%)
TEMPERATURE (ºC)
PGOOD THRESHOLD
TEMPERATURE toc4
FALLING
vs.
RISING
0
100
200
300
400
500
600
700
020 40 60 80 100
VDROPOUT (mV)
OUTPUT CURRENT(mA)
DROPOUT VOLTAGE
vs. LOAD CURRENT
toc5
+25°C
-40°C
85°C
VIN = 4.5V
4.96
4.97
4.98
4.99
5
5.01
5 15 25 35 45 55
OUTPUT VOLTAGE (V)
INPUT VOLTAGE (V)
toc6
IOUT = 0mA
IOUT = 1mA
MAX17651 4V to 60V, 100mA, Ultra-Low Quiescent Current,
Linear Regulator
Maxim Integrated
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was)? OAD YRANSIENT RESPDNS >VOLTM§ESTEPRESP LUADCURRENY SYEPPED 1DDmALOAD CURR ARTUF RESPONSEWI’IN LOAD FRUMSIImAhWDmA FIGURESCIRCUIT FIGURE3CIRCUIT FIGURESCIRCUIT n g g a sv ' ___.___'____F“‘ anusmw V FRESPONSEWI’IN 1n YARYUPRESPONSEWITH ENAE Fleunssclkcun [Na LDm),r|5uRE:c|Rcun W STARTUP RESPONSE WITH Emmi AND WamALOAD, FIGURE : cchuIr 6 : / .____....__.J Zmys/dw POWERSUPPLV REJEcnoN RAND, FIGURES cchurr 1n— -
(VIN = VEN = 6V, VOUT = 5V, COUT = 4.7µF TA= +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
5V/div
50mA/div
toc14
200µs/div
EN
IOUT
STARTUP RESPONSE WITH ENABLE
AND 100mA LOAD, FIGURE 3 CIRCUIT
VOUT
PGOOD
2V/div
5V/div
5V/div
50mA/div
toc12
200µs/div
VIN
IOUT
STARTUP RESPONSE WITH 100mA LOAD
FIGURE 3 CIRCUIT
VOUT
PGOOD
2V/div
5V/div
POWER SUPPLY REJECTION RATIO,
FIGURE 3 CIRCUIT
FREQUENCY (HZ
)
PSRR
(dB)
V
= 7V
V
I
OUT
= 100mA
5V/div
toc13
200µs/div
EN
STARTUP RESPONSE WITH ENABLE
(NO LOAD), FIGURE 3 CIRCUIT
VOUT
PGOOD
2V/div
5V/div
V
OUT
(AC)
LOAD TRANSIENT RESPONSE,
FROM 50mA to 100mA, FIGURE 3 CIRCUIT
5V/div
100mV/div
toc10
40µs/div
V
IN
V
OUT
(AC)
INPUT-VOLTAGE STEP RESPONSE
WITH 100mA LOAD CURRENT,
FIGURE 3 CIRCUIT
14V
6V
5V/div
toc11
200µs/div
V
IN
STARTUP RESPONSE WITH NO LOAD,
FIGURE 3 CIRCUIT
V
OUT
PGOOD
2V/div
5V/div
MAX17651 4V to 60V, 100mA, Ultra-Low Quiescent Current,
Linear Regulator
Maxim Integrated
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m?
Figure 1. Block Diagram
TSOT
TOP VIEW
MAX17651
IN
1
2
GND
EN
3OUT
6
5
FB
PGOOD
4
+
EN
FET DRIVER WITH
CURRENT LIMIT
REF = 0.6V PGOOD
FB
OUT
GND
CONTROL
LOGIC
THERMAL
PROTECTION
BANDGAP
IN
MAX17651
Pin Configuration
Functional Diagram
Pin Description
PIN NAME FUNCTION
1 EN Active-High, Enable Input. Force EN high (or connect to IN) to turn the regulator on. Pull EN to GND
to place the device in a low-power shutdown mode.
2 GND Ground. Connect GND to the ground plane.
3 IN Power-Supply Input. Decouple to GND with a 0.1µF capacitor; place the capacitor close to the IN
and GND pins.
4 OUT Regulator Output. Connect at least 4.7µF, 0805 capacitor from OUT to GND.
5 PGOOD
Open-Drain PGOOD Output. Pull up PGOOD to an external power supply. PGOOD pulls low if FB
drops below 89% of its set value. PGOOD goes high after FB rises above 92% of its set value. The
PGOOD pin can be left floating if not used.
6 FB Output Feedback Connection. Connect FB to a resistor divider between VOUT and GND to adjust
the output voltage from 0.6V to 59V.
MAX17651 4V to 60V, 100mA, Ultra-Low Quiescent Current,
Linear Regulator
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Detailed Description
The MAX17651 ultra-low quiescent current, high-voltage
linear regulator is ideal for use in industrial and battery-
operated systems. The device operates from a 4V to 60V
input voltage, delivers up to 100mA of load current and
consumes only 8μA of quiescent current at no load. The
device consumes only 0.9μA current when in shutdown.
Output voltage is adjustable from 0.6V to 58V voltage range.
Feedback voltage accuracy is ±2% over temperature.
An open-drain, active-low PGOOD pin provides a power-
good signal to the system upon achieving successful
regulation of the output voltage. The device also incorporates
an enable pin (EN) that allows the user to turn the part
on or off. The device has a thermal shutdown feature that
shuts down the part when the die temperature exceeds
165°C. The MAX17651 operates over the -40°C to
+125°C industrial temperature range and is available in a
compact, 6-lead TSOT package.
EN Input
EN is an active-high, logic-level enable input that turns
the device on or off. Drive EN high to turn the device on.
While in shutdown, the device consumes only 0.9μA (typ).
EN withstands voltages up to VIN + 0.3V, allowing it to be
driven by high input-level voltages, or be connected to IN
for always-on operation.
Thermal Protection
When the junction temperature exceeds +165°C, an
internal thermal sensor turns the pass transistor off,
allowing the device to cool. The thermal sensor turns the
pass transistor on again after the junction temperature
cools by 15°C. This results in a cycled output during
continuous thermal-overload conditions. Thermal
protection protects the MAX17651 in the event of fault
conditions.
Output Short-Circuit Current Limit
The MAX17651 features a 140mA (typ) current limit. The
output can be shorted to GND for an indefinite period
without damage to the device. During a short-circuit
event, the power dissipated across the internal pass
transistor can quickly heat the device. When the die
temperature reaches +165°C, the MAX17651 shuts down
and automatically restarts once the die temperature cools
by 15°C.
Applications Information
Output Voltage Setting
The output voltage can be programmed from 0.6V to 58V.
Set the output voltage by connecting a resistor divider
from output to FB to GND. Choose R2 = 59kΩ, then
calculate R1 with the following equation:
R1 = 98.3 x (VOUT - 0.6)kΩ
Output Capacitor Selection
If the output voltage is less than 1.8V, use a low-ESR
10µF(min) 0805 ceramic output capacitor for good load
transient response. If the output voltage is greater than or
equal to 1.8V, use a low-ESR 4.7µF(min) 0805 ceramic
output capacitor.
Figure 2. Setting the Output Voltage
V
OUT
FB
R1
R2
GND
MAX17651 4V to 60V, 100mA, Ultra-Low Quiescent Current,
Linear Regulator
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(125 T ) IN OUT
Available Output Current Calculation
At a particular operating condition, the power loss that
leads to the temperature rise of the part is estimated as
follows:
PLOSS = (VIN - VOUT) x ILOAD
where VIN is the input voltage, VOUT is the output voltage,
and ILOAD is the load current.
For a multilayer board, the thermal performance metrics
for the package are given below:
θJA = 110°C/W
The junction temperature of the MAX17651 can be
estimated at any given maximum ambient temperature
(TA_MAX) from the equation below:
TJ = TA_MAX + JA x PLOSS)
Junction temperature greater than +125°C degrades
operating lifetimes. Calculate the maximum allowable
output current, using the following formula:
(MAX)
A_MAX
LOAD
IN OUT
(125 T )
I110 (V V )
=
×−
Example: TA_MAX = +70°C, VIN = 24V, VOUT = 5V
(MAX)
LOAD
(125 70)
I 26mA
110 (24 5)
= ≅
×
Figure 3. Application Circuit for 5V output
Chip Information
PROCESS: BiCMOS
Ordering Information
V
OUT
R1
432kΩ
5V
R2
59kΩ
C
OUT
4.7µF
PGOOD
OUT
FB
CIN
0.1µF
EN
IN
GND
VOUT
5.5V TO 60V
MAX17651
Typical Application Circuit
PART TEMP RANGE PIN-PACKAGE
MAX17651AZT+ -40°C to +125°C 6 pin TSOT
MAX17651 4V to 60V, 100mA, Ultra-Low Quiescent Current,
Linear Regulator
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Revision History
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
0 11/14 Initial release
1 3/16 Updated Electrical Characteristics table and Typical Operating Characteristics
section 1–4, 6, 7
2 3/17 Updated maximum input voltage range 1–6
3 9/17
Updated title, Electrical Characteristics table, and the Benefits and Features and
Available Output Current Calculation sections. Replaced Note 1 for the Absolute
Maximum Ratings section
1–9
3.1 Closed the parentheses for the Typical Operating Characteristics global
characteristics 4–5
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.
MAX17651 4V to 60V, 100mA, Ultra-Low Quiescent Current,
Linear Regulator
© 2017 Maxim Integrated Products, Inc.
9
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