DATASHEET
ISL80136
FN7970
Rev.4.00
Aug 8, 2019
40V, Low Quiescent Current, High Accuracy, 50mA Linear Regulator
The ISL80136 is a high voltage, low quiescent current linear
regulator ideally suited for “always-on” and “keep alive”
applications. The ISL80136 operates from an input voltage of
+6V to +40V under normal operating conditions, consuming
only 18µA of quiescent current at no load.
Features
The ISL80136 offers adjustable output voltages from 2.5V to
12V. It features an EN pin that can be used to put the device
into a low-quiescent current shutdown mode where it draws
only 1.8µA of supply current. The device features
over-temperature shutdown and current limit protection.
• Ultra low 18µA typical quiescent current
The ISL80136 is rated across the -40°C to +125°C
temperature range and is available in an 8 lead EPSOIC with
an exposed pad package.
• Low 26µVRMS noise
Applications
• Stable operation with 10µF output capacitor
• Industrial
• Thermal shutdown and current limit protection
• Networking
Related Literature
• Wide VIN range of 6V to 40V
• Adjustable output voltage from 2.5V to 12V
• Ensured 50mA output current
• Low 1.8µA of typical shutdown current
• ±1% accurate voltage reference (over temperature, load)
• Low dropout voltage of 120mV at 50mA
• 40V tolerant logic level (TTL/CMOS) enable input
• 5kV ESD HBM rated
• Telecom
For a full list of related documents, visit our website:
• ISL80136 device page
OUT
IN
CIN
0.1µF
R1
EN
PAD
(GND)
ADJ
R2
GND
COUT
10µF
QUIESCENT CURRENT (µA)
70
60
40
30
20
FN7970 Rev.4.00
Aug 8, 2019
LOAD = 0mA
10
0
-50
FIGURE 1. TYPICAL APPLICATION
LOAD = 50mA
50
0
50
100
TEMPERATURE (°C)
150
FIGURE 2. QUIESCENT CURRENT vs LOAD CURRENT (AT UNITY
GAIN), VIN = 14V
Page 1 of 11
ISL80136
Block Diagram
VIN
EN
CONTROL
LOGIC
+
THERMAL
SENSOR
EA
FET DRIVER
WITH CURRENT
LIMIT
VOUT
REFERENCE
+
SOFT-START
ADJ
GND
Ordering Information
PART
NUMBER
(Notes 2, 3)
PART
MARKING
ISL80136IBEAJZ
ISL80136IBEAJZ-T
TEMP. RANGE
(°C)
ENABLE
PIN
OUTPUT
VOLTAGE (V)
Tape and Reel
(Units) (Note 1)
80136 IBEAJZ
-40 to +125
Yes
ADJ
-
8 Ld EPSOIC
M8.15B
80136 IBEAJZ
-40 to +125
Yes
ADJ
2.5k
8 Ld EPSOIC
M8.15B
ISL80136IBEAJZ-T7A 80136 IBEAJZ
-40 to +125
Yes
ADJ
250
8 Ld EPSOIC
M8.15B
ISL80136EVAL1Z
PACKAGE
(RoHS Compliant)
PKG.
DWG. #
Evaluation Platform
NOTES:
1. See TB347 for details about reel specifications.
2. These Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate
plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Pb-free products are
MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), see the ISL80136 device page. For more information about MSL, see TB363.
TABLE 1. KEY DIFFERENCES IN FAMILY OF 40V LDO PARTS
PART NUMBER
MINIMUM IOUT
IC PACKAGE
ISL80410
150mA
8 Ld EPSOIC
ISL80136
50mA
8 Ld EPSOIC
ISL80138
150mA
14 LD HTSSOP
FN7970 Rev.4.00
Aug 8, 2019
Page 2 of 11
ISL80136
Pin Configuration
8 LD EPSOIC
TOP VIEW
IN
1
NC
2
8
OUT
7
ADJ
6
NC
5
GND
PAD
NC
3
EN
4
(GND)
Pin Descriptions
PIN #
PIN NAME
DESCRIPTION
1
IN
Input voltage pin. A minimum 0.1µF X5R/X7R capacitor is required for proper operation. Range: 6V to 40V
2, 3, 6
NC
Pins have internal termination and can be left unconnected. Connection to ground is optional.
4
EN
5
GND
High on this pin enables the device. Range: 0V to VIN
Ground pin.
7
ADJ
This pin is connected to the external feedback resistor divider, which sets the LDO output voltage.
8
OUT
Regulated output voltage. A 10µF X5R/X7R output capacitor is required for stability. Range: 0V to 12V
-
PAD
It is recommended to solder the PAD to the ground plane.
FN7970 Rev.4.00
Aug 8, 2019
Page 3 of 11
ISL80136
Absolute Maximum Ratings
Thermal Information
IN Pin to GND Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +45V
OUT Pin to GND Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 16V
EN Pin to GND Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GND - 0.3V to IN
ADJ Pin to GND Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to3V
Output Short-circuit Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indefinite
ESD Rating
Human Body Model (Tested per JESD22-A114E) . . . . . . . . . . . . . . . . 5kV
Machine Model (Tested per JESD-A115-A) . . . . . . . . . . . . . . . . . . . 200V
Charge Device Model (Tested per JESD22-C101C). . . . . . . . . . . . . 2.2kV
Latch-Up (Tested per JESD78B; Class II, Level A) . . . . . . . . . . . . . . . 100mA
Thermal Resistance (Typical)
JA (°C/W) JC (°C/W)
8 Ld EPSOIC Package (Notes 4, 5). . . . . . . .
50
9
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +175°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB493
Recommended Operating Conditions
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . -40°C to +125°C
IN Pin to GND Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6V to +40V
OUT Pin to GND Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +2.5V to +12V
EN Pin to GND Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V to +40V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions can adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4. JA is measured in free air with the component mounted on a high-effective thermal conductivity test board with “direct attach” features. See TB379.
5. For JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
Recommended operating conditions, unless otherwise noted. VIN = 14V, IOUT = 1mA, TA = TJ = -40°C to
+125°C, unless otherwise noted. Typical specifications are at TA = +25°C. Boldface limits apply across the operating temperature range, -40°C to
+125°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
(Note 8)
TYP
6
Input Voltage Range
VIN
Guaranteed Output Current
IOUT
VIN = VOUT + VDO
ADJ Reference Voltage
VREF
EN = High, VIN = 14V, IOUT = 0.1mA to
50mA
MAX
(Note 8)
50
1.211
UNIT
40
V
mA
1.223
1.235
V
Line Regulation
(VOUT low line - VOUT high
line)/VOUT low line
6V < VIN < 40V, IOUT = 1mA
0.04
0.115
%
Load Regulation
(VOUT no load - VOUT high
load)/VOUT no load
VIN = 14V, IOUT = 100µA to 50mA
0.25
0.5
%
mV
Dropout Voltage (Note 6)
VDO
Shutdown Current
ISHDN
Quiescent Current
IQ
Power Supply Rejection Ratio
PSRR
Output Voltage Noise
IOUT = 1mA, VOUT = 2.5V
10
38
IOUT = 50mA, VOUT = 2.5V
130
340
mV
IOUT = 1mA, VOUT = 5V
10
48
mV
IOUT = 50mA, VOUT = 5V
120
350
mV
EN = LOW
1.8
3.64
µA
EN = HIGH, IOUT = 0mA
18
24
µA
EN = HIGH, IOUT = 1mA
22
42
µA
EN = HIGH, IOUT = 10mA
34
60
µA
EN = HIGH, IOUT = 50mA
56
82
µA
f = 100Hz; VIN_RIPPLE = 500mVP-P;
Load = 50mA
58
dB
VIN = 14V, VOUT = 3.3V, COUT = 10µF,
IOUT = 10mA, BW = 100Hz to 100kHz
26
µVRMS
EN FUNCTION
EN Threshold Voltage
VEN_H
VOUT = Off to On
VEN_L
VOUT = On to Off
EN Pin Current
IEN
EN to Regulation Time (Note 7)
tEN
FN7970 Rev.4.00
Aug 8, 2019
VOUT = 0V
1.485
V
0.935
V
0.026
1.65
µA
1.93
ms
Page 4 of 11
ISL80136
Electrical Specifications
Recommended operating conditions, unless otherwise noted. VIN = 14V, IOUT = 1mA, TA = TJ = -40°C to
+125°C, unless otherwise noted. Typical specifications are at TA = +25°C. Boldface limits apply across the operating temperature range, -40°C to
+125°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
(Note 8)
TYP
MAX
(Note 8)
UNIT
PROTECTION FEATURES
Output Current Limit
ILIMIT
VOUT = 0V
Thermal Shutdown
TSHDN
Junction Temperature Rising
Thermal Shutdown Hysteresis
THYST
60
118
mA
+165
°C
+20
°C
NOTES:
6. Dropout voltage is defined as (VIN - VOUT) when VOUT is 2% below the value of VOUT.
7. Enable to Regulation Time is the time the output takes to reach 95% of its final value with VIN = 14V and EN is taken from VIL to VIH in 5ns. The output
voltage is set at 5V.
8. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
FN7970 Rev.4.00
Aug 8, 2019
Page 5 of 11
ISL80136
Typical Performance Curves
VIN = 14V, IOUT = 1mA, VOUT = 5V, TJ = +25 °C unless otherwise specified.
80
30
+125°C
QUIESCENT CURRENT (µA)
QUIESCENT CURRENT (µA)
70
60
50
40
+25°C
30
-40°C
20
10
0
0
10
20
30
40
20
+25°C
10
5
0
10
20
30
40
INPUT VOLTAGE (V)
LOAD CURRENT (mA)
FIGURE 4. QUIESCENT CURRENT vs INPUT VOLTAGE (NO LOAD)
FIGURE 3. QUIESCENT CURRENT vs LOAD CURRENT
0.010
% OUTPUT VOLTAGE VARIATION
3.0
SHUTDOWN CURRENT (µA)
-40°C
15
0
50
+125°C
25
2.5
VIN = 40V
2.0
1.5
VIN = 14V
1.0
0.5
0
-50
0
50
100
150
TEMPERATURE (°C)
0.005
VOUT = 5V
0
-0.005
-0.010
-50
VOUT = 3.3V
0
50
100
FIGURE 6. OUTPUT VOLTAGE vs TEMPERATURE (LOAD = 50mA)
FIGURE 5. SHUTDOWN CURRENT vs TEMPERATURE (EN = 0)
5.100
OUTPUT VOLTAGE (V)
5.075
5.050
+125°C
EN AT 500mV/DIV
+25°C
5.025
5.000
-40°C
4.975
4.950
4.925
4.900
VOUT AT 1V/DIV
0
10
20
30
40
50
TIME AT 500µs/DIV
LOAD CURRENT (mA)
FIGURE 7. OUTPUT VOLTAGE vs LOAD CURRENT
FN7970 Rev.4.00
Aug 8, 2019
150
TEMPERATURE (°C)
FIGURE 8. START-UP WAVEFORM
Page 6 of 11
ISL80136
Typical Performance Curves
VIN = 14V, IOUT = 1mA, VOUT = 5V, TJ = +25 °C unless otherwise specified. (Continued)
80
VOUT = 3.3V
70
IOUT = 0A
60
PSRR (dB)
VOUT AT 100mV/DIV
IOUT = 25mA
50
40
30
IOUT = 50mA
20
50mA
IOUT
10
0mA
0
TIME AT 5ms/DIV
100k
1M
10
VOUT = 5V
70
NOISE (µV/√Hz)
IOUT = 0A
60
PSRR (dB)
10k
FIGURE 10. PSRR vs FREQUENCY FOR VARIOUS LOAD CURRENT,
VOUT = 3.3V
90
IOUT = 25mA
50
40
30
IOUT = 50mA
1
0.1
20
100
VIN = 14V
VOUT= 3.3V
COUT = 10µF
IOUT = 10mA
10
0
1k
FREQUENCY (Hz)
FIGURE 9. LOAD TRANSIENT RESPONSE
80
100
1k
10k
100k
0.01
10
1M
100
1k
10k
100k
FREQUENCY (Hz)
BW = 100