STMPS2141, STMPS2151,
STMPS2161, STMPS2171
Enhanced single channel power switches
Datasheet - production data
Description
SOT23-5L
The STMPS2141, STMPS2151, STMPS2161,
STMPS2171 power distribution switches are
intended for applications where heavy capacitive
loads and short-circuits are likely to be
encountered. These devices incorporate 90 mW
N-channel MOSFET high-side power switches for
power distribution. These switches are controlled
by a logic enable input.
SO-8
MSOP8
Features
• 90 mW high-side MOSFET switch
• 500/1000 mA continuous current
• Thermal and short-circuit protection with
overcurrent logic output
• Operating range from 2.7 to 5.5 V
When the output load exceeds the current limit
threshold or a short is present, the device limits
the output current to a safe level by switching into
a constant current mode. When continuous heavy
overloads and short-circuits increase the power
dissipation in the switch, causing the junction
temperature to rise, a thermal protection circuit
shuts the switch off to prevent damage. Recovery
from a thermal shutdown is automatic once the
device has cooled sufficiently. Internal circuitry
ensures the switch remains off until a valid input
voltage is present.
• CMOS and TTL compatible enable input
• Undervoltage lockout (UVLO)
• 12 µA maximum standby supply current
• Ambient temperature range, -40 to 85 °C
• ESD protection: 8 kV HBM
• Reverse current protection
• Fault blanking
• UL recognized components (UL file number:
E354278)
Table 1. Device summary
Order codes
SO-8
Rated continuous output current
MSOP8(1)
SOT23-5L
(mA)
Enable
STMPS2141MTR
STMPS2141STR
STMPS2141TTR
500
Active low
STMPS2151MTR
STMPS2151STR
STMPS2151TTR
500
Active high
STMPS2161MTR
STMPS2161STR
STMPS2161TTR
1000
Active low
STMPS2171MTR
STMPS2171STR
STMPS2171TTR
1000
Active high
1. MSOP8 package is also known as “TSSOP8”.
February 2022
This is information on a product in full production.
DocID013793 Rev 7
1/39
www.st.com
Contents
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Contents
1
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3
2.1
Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1
Fault blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2
Overcurrent/overtemperature protection . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3
Fault conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4
Reversed current blocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.5
UVLO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4
Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.2
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7
Detail device characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.1
7.2
2/39
STMPS2141, STMPS2151 additional electrical charts . . . . . . . . . . . . . . 17
7.1.1
Turn-on/off characteristics at VOUT = 5.0 V . . . . . . . . . . . . . . . . . . . . . . 17
7.1.2
Turn-on/off characteristics at VOUT = 3.0 V . . . . . . . . . . . . . . . . . . . . . . 18
7.1.3
UVLO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.1.4
OC protection characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.1.5
Other electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
STMPS2161, STMPS2171 electrical charts . . . . . . . . . . . . . . . . . . . . . . . 23
7.2.1
Turn-on/off characteristics at VOUT = 5.0 V . . . . . . . . . . . . . . . . . . . . . . 23
7.2.2
Turn-on/off characteristics at VOUT = 3.0 V . . . . . . . . . . . . . . . . . . . . . . 24
7.2.3
UVLO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.2.4
OC protection characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.2.5
Other electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
DocID013793 Rev 7
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Contents
8
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
9
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
10
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
DocID013793 Rev 7
3/39
39
List of tables
STMPS2141, STMPS2151, STMPS2161, STMPS2171
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
Table 23.
4/39
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Fault conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SOT23-5L (191 °C/W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
MSOP8 (220 °C/W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SO-8 (160 °C/W). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SOT-23-5L electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
MSO8P/SO-8 electrical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Current limit characteristics
(VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified) . . . . . . . . . . . . 13
Supply current characteristics
(VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified) . . . . . . . . . . . . 13
Thermal characteristics
(VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified) . . . . . . . . . . . . 14
UVLO characteristics
(VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified) . . . . . . . . . . . . 14
FAULT pin characteristics
(VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified) . . . . . . . . . . . . 14
EN pin characteristics
(VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified) . . . . . . . . . . . . 14
SOT23-5L package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
SOT23-5L footprint dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
SO-8 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
MSOP8 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
DocID013793 Rev 7
STMPS2141, STMPS2151, STMPS2161, STMPS2171
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 17.
Figure 18.
Figure 15.
Figure 16.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Figure 30.
Figure 31.
Figure 32.
Figure 33.
Figure 34.
Figure 35.
Figure 36.
Figure 37.
Figure 38.
Figure 39.
Figure 42.
Figure 43.
Figure 40.
Figure 41.
Figure 44.
Figure 45.
Figure 46.
Figure 47.
Figure 48.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SOT23-5L, SO-8 and MSOP8 pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Voltage output turn-on delay time (STMPS2141/2151, 5 V). . . . . . . . . . . . . . . . . . . . . . . . 17
Voltage output turn-off delay time (STMPS2141/2151, 5 V). . . . . . . . . . . . . . . . . . . . . . . . 17
Current output turn-on delay time (STMPS2141/2151, 5 V) . . . . . . . . . . . . . . . . . . . . . . . . 17
Current output turn-off delay time (STMPS2141/2151, 5 V) . . . . . . . . . . . . . . . . . . . . . . . . 17
Voltage output turn-on delay time (STMPS2141/2151, 3 V). . . . . . . . . . . . . . . . . . . . . . . . 18
Voltage output turn-off delay time (STMPS2141/2151, 3 V). . . . . . . . . . . . . . . . . . . . . . . . 18
Current output turn-on delay time (STMPS2141/2151, 3 V) . . . . . . . . . . . . . . . . . . . . . . . . 18
Current output turn-off delay time (STMPS2141/2151, 3 V) . . . . . . . . . . . . . . . . . . . . . . . . 18
UVLO rising (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
UVLO falling (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
OC protection at VOUT = 3.0 V (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
OC protection at VOUT = 3.0 V (STMPS2141/2151 - details) . . . . . . . . . . . . . . . . . . . . . . . 19
ICC vs. VIN (enabled) (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
ICC vs. temperature (enabled) (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
OC protection at VOUT = 5.0 V (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
OC protection at VOUT = 5.0 V (STMPS2141/2151 - details) . . . . . . . . . . . . . . . . . . . . . . . 20
ICC vs. VIN (disabled) (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
ICC vs. temperature (disabled) (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
RON vs. VIN (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
RON vs. temperature (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
IOS vs. temperature (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Switch leakage vs. temperature (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Output rise time vs. VIN (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Output fall time vs. VIN (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
UVLO vs. temperature (STMPS2141/2151) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Voltage output turn-on delay time (STMPS2161/2171, 5 V) . . . . . . . . . . . . . . . . . . . . . . . 23
Voltage output turn-off delay time (STMPS2161/2171, 5 V). . . . . . . . . . . . . . . . . . . . . . . . 23
Current output turn-on delay time (STMPS2161/2171, 5 V) . . . . . . . . . . . . . . . . . . . . . . . 23
Current output turn-off delay time (STMPS2161/2171, 5 V) . . . . . . . . . . . . . . . . . . . . . . . 23
Voltage output turn-on delay time (STMPS2161/2171, 3 V) . . . . . . . . . . . . . . . . . . . . . . . 24
Voltage output turn-off delay time (STMPS2161/2171, 3 V) . . . . . . . . . . . . . . . . . . . . . . . 24
Current output turn-on delay time (STMPS2161/2171, 3 V) . . . . . . . . . . . . . . . . . . . . . . . 24
Current output turn-off delay time (STMPS2161/2171, 3 V) . . . . . . . . . . . . . . . . . . . . . . . 24
UVLO rising (STMPS2161/2171) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
UVLO falling (STMPS2161/2171) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
OC protection at VOUT = 3.0 V (STMPS2161/2171) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
OC protection at VOUT = 3.0 V (STMPS2161/2171- detail) . . . . . . . . . . . . . . . . . . . . . . . . 25
ICC vs. VIN (enabled) (STMPS2161/2171) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
ICC vs. temperature (enabled) (STMPS2161/2171). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
OC protection at VOUT = 5.0 V (STMPS2161/2171) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
OC protection at VOUT = 5.0 V (STMPS2161/2171- detail) . . . . . . . . . . . . . . . . . . . . . . . . 26
ICC vs. VIN (disabled) (STMPS2161/2171) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
ICC vs. temperature (disabled) (STMPS2161/2171) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
RON vs. VIN (STMPS2161/2171) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
RON vs. temperature (STMPS2161/2171) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
IOS vs. temperature (STMPS2161/2171) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
DocID013793 Rev 7
5/39
39
List of figures
Figure 49.
Figure 50.
Figure 51.
Figure 52.
Figure 53.
Figure 54.
Figure 55.
Figure 56.
Figure 57.
Figure 58.
Figure 59.
Figure 60.
6/39
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Switch leakage vs. temperature (STMPS2161/2171) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Output rise time vs. VIN (STMPS2161/2171). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Output fall time vs. VIN (STMPS2161/2171 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
UVLO vs. temperature (STMPS2161/2171) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
SOT23-5L package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
SOT23-5L footprint recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
SOT23-5L carrier tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
SO-8 package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
SO-8 carrier tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
MSOP8 package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
MSOP8 carrier tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Reel information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
DocID013793 Rev 7
STMPS2141, STMPS2151, STMPS2161, STMPS2171
1
Block diagram
Block diagram
Figure 1. Block diagram
DocID013793 Rev 7
7/39
39
Pin settings
STMPS2141, STMPS2151, STMPS2161, STMPS2171
2
Pin settings
2.1
Pin connections
Figure 2. SOT23-5L, SO-8 and MSOP8 pin connections
OUT
1
GND
2
FAULT
3
5
IN
4
EN
SOT23-5L
GND
1
8
OUT
IN
2
7
OUT
IN
3
6
OUT
EN
4
5
FAULT
SO-8 / MSOP8
2.2
Pin description
Table 2. Pin description
Pin number
Name
8/39
Function
SO-8
MSOP8
SOT23-5L
1
1
2
GND
2
2
5
IN
2.7 - 5.5 V input
3
3
-
IN
2.7 - 5.5 V input
4
4
4
EN
Enable for power switch
5
5
3
FAULT
6
6
1
OUT
Output of power switch
7
7
-
OUT
Output of power switch
8
8
-
OUT
Output of power switch
DocID013793 Rev 7
Ground
Open drain FAULT indicator, active low
STMPS2141, STMPS2151, STMPS2161, STMPS2171
3
Functional description
3.1
Fault blanking
Functional description
The STMPS devices feature a 10 ms fault blanking. Fault blanking allows current limit faults,
including momentary short-circuit faults that occur when hot-swapping a capacitive load,
and also ensures that no fault is issued during power-up. When a load transient causes the
device to enter current limit, an internal counter starts. If the load fault persists beyond the
10 ms fault blanking timeout, the FAULT output asserts “low”. Load transient faults less than
10 ms (typ.) do not cause a FAULT output assertion. Only current limit faults are blanked.
Die overtemperature faults and input voltage drops below the UVLO threshold cause an
immediate fault output.
3.2
Overcurrent/overtemperature protection
In overcurrent or short-circuit condition, the switch limits the current at a value of about
120% of the rated current. If the temperature of the die goes above the limit value, the
switch turns off.
3.3
Fault conditions
In power switch applications, 4 types of fault conditions are common. These fault conditions
and the response of the STMPS21x1 power switches are described in Table 3.
Table 3. Fault conditions
Fault
Condition
Short-circuit
Output shorted to GND via resistance
path of < 1 Ω, causing a rapid current
surge.
Overcurrent
Output connected to a load that sinks
current above threshold.
Overheating
Temperature of junction exceeds 135 °C
due to any reason.
STMPS21x1 action
Reduces output voltage to reduce the
current. Asserts FAULT pin after
a blanking period
Reduces output voltage to reduce the
Input voltage drops below the UVLO
Undervoltage
threshold.
DocID013793 Rev 7
current. Asserts FAULT pin after
a blanking period.
Turn OFF output until temperature falls
below 125 °C. Asserts FAULT pin
immediately.
Turn OFF output until input voltage rises
above the UVLO threshold plus
hysteresis. Asserts FAULT pin
immediately.
9/39
39
Functional description
3.4
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Reversed current blocking
When the switch is OFF (disabled through the EN pin), or when the STMPS device is
unpowered (VIN = 0 V) the switch behaves as an Hi-Z at the output pin, ensuring that no
reverse current will flow into the device when VIN < VOUT.
Note:
In the case where the switch is ON, and a voltage higher than VIN is applied to the OUT pin,
a reverse current occurs. This operating condition is not allowed.
3.5
UVLO
When the input voltage drops below critical values, the power switch turns off to prevent
improper operation due to low voltage.
10/39
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STMPS2141, STMPS2151, STMPS2161, STMPS2171
4
Ambient temperature
Ambient temperature
In “Enable” operating mode, an amount of power is dissipated as heat in the power switch
due to the on-resistance. The power dissipation is: P = I2R.
Table 4. SOT23-5L (191 °C/W)
Part number
STMPS2141
STMPS2151
STMPS2161
STMPS2171
Max. RON
at 5 V
Power
dissipation
0.50 A
135 mΩ
1.00 A
135 mΩ
Max. current
Temperature
difference
Maximum ambient
temperature
(junction - ambient)
(at junction
temperature 125 °C)
33.8 mW
6.5
118.5
135.0 mW
25.8
99.2
Table 5. MSOP8 (220 °C/W)
Part number
STMPS2141
STMPS2151
STMPS2161
STMPS2171
Max. RON
at 5 V
Power
dissipation
0.50 A
140 mΩ
1.00 A
140 mΩ
Max. current
Temperature
difference
Maximum ambient
temperature
(junction - ambient)
(at junction
temperature 125 °C)
35.0 mW
7.7
117.3
140.0 mW
30.8
94.2
Table 6. SO-8 (160 °C/W)
Part number
STMPS2141
STMPS2151
STMPS2161
STMPS2171
Maximum ambient
temperature
Max. current
Max. RON
at 5 V
Power
dissipation
Temperature
difference
(junction - ambient)
0.50 A
140 mΩ
35.0 mW
5.6
119.4
1.00 A
140 mΩ
140.0 mW
22.4
102.6
DocID013793 Rev 7
(at junction
temperature 125 °C)
11/39
39
Maximum ratings
5
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Maximum ratings
Stressing the device above the rating listed in Table 7: Absolute maximum ratings may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in Section 5.2:
Recommended operating conditions of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
5.1
Absolute maximum ratings
Table 7. Absolute maximum ratings
Symbol
VIN
Value
Unit
–0.3 – 6.0
V
–0.3 – (VIN + 0.3)
V
-0.3 – 6.0
V
Internally limited
-
8
kV
Junction operating temperature
–40 to 125
°C
Storage temperature
–55 to 150
°C
Input voltage range
VOUT
Output voltage range
VIENX
EN Input voltage range
IOUT
Continuous output current
ESD
ESD protection level (HBM)
TJ
TSTG
5.2
Parameter
TR
Thermal resistance (MSOP8)
220
°C/W
TR
Thermal resistance (SOT23-5L)
191
°C/W
TR
Thermal resistance (SO-8)
160
°C/W
Recommended operating conditions
Table 8. Recommended operating conditions
Value
Symbol
Unit
Min.
Typ.
Max.
2.7
5.0
5.5
V
Output voltage
0
5.0
5.5
V
IOUT
(STMPS2141
STMPS2151)
Continuous output current
0
-
500
mA
IOUT
(STMPS2161
STMPS2171)
Continuous output current
0
-
1000
mA
VIN
VOUT
12/39
Parameter
Input voltage
DocID013793 Rev 7
STMPS2141, STMPS2151, STMPS2161, STMPS2171
6
Electrical specifications
Electrical specifications
Table 9. SOT-23-5L electrical characteristics
Value
Symbol
RON
RON
tr
Parameter
Static drain source
ON state resistance
SOT23-5L package
load = 500 mA
(STMPS2141/
STMPS2151)
load = 1000 mA
(STMPS2161/
STMPS2171)
Static drain source
ON state resistance
Output rise time
Test condition
Unit
Min.
Typ.
Max.
VIN = 2.7 V; TJ = 25 °C;
-
120
160
mΩ
VIN = 5.0 V; TJ = 25 °C;
-
90
110
mΩ
VIN = 2.7 V;
-40 < TJ < 125 °C
-
-
200
VIN = 5.0 V;
-40 < TJ < 125 °C
-
-
135
0.05
-
2
VIN = 5.0 V RL = 10 Ω
CL = 1 µF
mΩ
ms
Table 10. MSO8P/SO-8 electrical characteristics
Value
Symbol
RON
RON
tr
Parameter
Test condition
Typ.
Max.
-
130
170
mΩ
-
110
125
mΩ
VIN = 2.7 V
-40 < TJ < 125 °C
-
-
200
VIN = 5.0 V
-40 < TJ < 125 °C
-
-
140
0.05
-
2
Static drain source
VIN = 2.7 V; TJ = 25 °C
ON state resistance
SO-8 and MSO8 package
load = 500 mA
(STMPS2141/
VIN = 5.0 V; TJ = 25 °C
STMPS2151)
load = 1000 mA
(STMPS2161/
STMPS2171)
Static drain source
ON state resistance
Output rise time
Unit
Min.
VIN = 5.0 V RL = 10 Ω
CL = 1 µF
DocID013793 Rev 7
mΩ
ms
13/39
39
Electrical specifications
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Table 11. Current limit characteristics
(VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified)
Value
Symbol
Parameter
Test condition
IOS
Overcurrent limiting
(STMPS2141
threshold
STMPS2151)
IOS
Overcurrent limiting
(STMPS2161
threshold
STMPS2171)
IOS
Short-circuit output
(2141, 2151) current
IOS
Short-circuit output
(2161, 2171) current
Unit
Min.
Typ.
Max.
0.60
0.80
1.00
A
1.10
1.50
1.90
A
-
-
0.9
A
-
-
1.8
A
VIN = 5.5 V
VOUT = 5.0 V
VIN = 5.5 V, OUT
connected to GND,
device enabled into
short-circuit
Table 12. Supply current characteristics
(VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified)
Value
Symbol
IOFF
ION
Ileakage
Ireverse
Parameter
Switch turned off
Switch turned on
Output leakage
current(1)
Reversed leakage
current
Test condition
Unit
Min.
Typ.
Max.
No load
-
6.0
12
No load;
-40 < TJ < 125 °C
-
-
15
No load
-
40
60
No load;
-40 < TJ < 125 °C
-
-
70
Output grounded, switch
is OFF
-
-
2
Output grounded, switch
is OFF;
-40 < TJ < 125 °C
-
-
5
Switch is off, VIN < VOUT,
output connected to
5.5 V, 25 °C
-
0.5
2
Switch is off, VIN < VOUT,
output connected to
5.5 V, 125 °C
-
µA
µA
µA
µA
0.5
3
1. Ileakage = IOFF-ground - IOFF, where IOFF-ground = current into VIN when switch is off and output is grounded.
14/39
DocID013793 Rev 7
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Electrical specifications
Table 13. Thermal characteristics
(VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified)
Value
Symbol
Parameter
T1
Thermal shutdown
threshold
T2
Recovery from thermal
shutdown
Hysteresis
Test condition
-
Unit
Min.
Typ.
Max.
-
-
145
°C
120
-
-
°C
-
14
-
°C
Table 14. UVLO characteristics
(VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified)
Value
Symbol
VUVLO
Parameter
Test condition
Undervoltage lockout
threshold
Hysteresis
-
Unit
Min.
Typ.
Max.
2.0
-
2.5
V
40
75
110
mV
Table 15. FAULT pin characteristics
(VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified)
Value
Symbol
OC blanking
Parameter
Test condition
FAULT assertion and deassertion
Unit
Min.
Typ.
Max.
4
8
15
ms
VOUT
Output low voltage
IOUT = 5 mA
-
-
0.4
V
IOFF
Off current
VFAULT = 2.7 V, 5.5 V
(no OC condition)
-
-
1.0
µA
Table 16. EN pin characteristics
(VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified)
Value
Symbol
Parameter
VIH
High level input voltage
VIL
Low level input voltage
IIN
Input current
Test condition
Unit
Min.
Typ.
Max.
VIN = 2.7 to 5.5 V
2.0
-
-
V
VIN = 4.5 to 5.5 V
-
-
0.8
V
VIN = 2.7 to 4.5 V
-
-
0.4
V
VIEN = 0 V or VIN
-0.5
-
0.5
µA
DocID013793 Rev 7
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39
Electrical specifications
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Table 16. EN pin characteristics
(VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified)
tON
Turn-ON time(1)
RL = 10 Ω
CL = 100 µF
-
-
5
ms
tOFF
Turn-OFF time(1)
RL = 10 Ω
CL = 100 µF
-
-
10
ms
1. Not tested in production, specified by design.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171
Detail device characteristics
7
Detail device characteristics
7.1
STMPS2141, STMPS2151 additional electrical charts
The waveforms displayed in Section 7.1 are captured with the STMPS2141 device. The
STMPS2151 device is expected to have the same characteristics with EN in the opposite
polarity.
7.1.1
Turn-on/off characteristics at VOUT = 5.0 V
Figure 3. Voltage output turn-on delay time
(STMPS2141/2151, 5 V)
Figure 4. Voltage output turn-off delay time
(STMPS2141/2151, 5 V)
Figure 5. Current output turn-on delay time
(STMPS2141/2151, 5 V)
Figure 6. Current output turn-off delay time
(STMPS2141/2151, 5 V)
DocID013793 Rev 7
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39
Detail device characteristics
7.1.2
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Turn-on/off characteristics at VOUT = 3.0 V
Figure 7. Voltage output turn-on delay time
(STMPS2141/2151, 3 V)
Figure 8. Voltage output turn-off delay time
(STMPS2141/2151, 3 V)
Figure 9. Current output turn-on delay time
(STMPS2141/2151, 3 V)
Figure 10. Current output turn-off delay time
(STMPS2141/2151, 3 V)
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DocID013793 Rev 7
STMPS2141, STMPS2151, STMPS2161, STMPS2171
7.1.3
UVLO
Figure 11. UVLO rising (STMPS2141/2151)
7.1.4
Detail device characteristics
Figure 12. UVLO falling (STMPS2141/2151)
OC protection characteristics
Figure 13. OC protection at VOUT = 3.0 V
(STMPS2141/2151)
Figure 14. OC protection at VOUT = 3.0 V
(STMPS2141/2151 - details)
DocID013793 Rev 7
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39
Detail device characteristics
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Figure 15. OC protection at VOUT = 5.0 V
(STMPS2141/2151)
7.1.5
20/39
Figure 16. OC protection at VOUT = 5.0 V
(STMPS2141/2151 - details)
Other electrical characteristics
Figure 17. ICC vs. VIN (enabled)
(STMPS2141/2151)
Figure 18. ICC vs. temperature (enabled)
(STMPS2141/2151)
Figure 19. ICC vs. VIN (disabled)
(STMPS2141/2151)
Figure 20. ICC vs. temperature (disabled)
(STMPS2141/2151)
DocID013793 Rev 7
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Detail device characteristics
Figure 21. RON vs. VIN (STMPS2141/2151)
Figure 22. RON vs. temperature
(STMPS2141/2151)
Figure 23. IOS vs. temperature
(STMPS2141/2151)
Figure 24. Switch leakage vs. temperature
(STMPS2141/2151)
Figure 25. Output rise time vs. VIN
(STMPS2141/2151)
Figure 26. Output fall time vs. VIN
(STMPS2141/2151)
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39
Detail device characteristics
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Figure 27. UVLO vs. temperature (STMPS2141/2151)
22/39
DocID013793 Rev 7
STMPS2141, STMPS2151, STMPS2161, STMPS2171
7.2
Detail device characteristics
STMPS2161, STMPS2171 electrical charts
The waveforms displayed in Section 7.2 are captured with the STMPS2161 device. The
STMPS2171 device is expected to have the same characteristics with EN in the opposite
polarity.
7.2.1
Turn-on/off characteristics at VOUT = 5.0 V
Figure 28. Voltage output turn-on delay time
(STMPS2161/2171, 5 V)
Figure 29. Voltage output turn-off delay time
(STMPS2161/2171, 5 V)
Figure 30. Current output turn-on delay time
(STMPS2161/2171, 5 V)
Figure 31. Current output turn-off delay time
(STMPS2161/2171, 5 V)
DocID013793 Rev 7
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39
Detail device characteristics
7.2.2
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Turn-on/off characteristics at VOUT = 3.0 V
Figure 32. Voltage output turn-on delay time
(STMPS2161/2171, 3 V)
Figure 33. Voltage output turn-off delay time
(STMPS2161/2171, 3 V)
Figure 34. Current output turn-on delay time
(STMPS2161/2171, 3 V)
Figure 35. Current output turn-off delay time
(STMPS2161/2171, 3 V)
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STMPS2141, STMPS2151, STMPS2161, STMPS2171
7.2.3
UVLO
Figure 36. UVLO rising (STMPS2161/2171)
7.2.4
Detail device characteristics
Figure 37. UVLO falling (STMPS2161/2171)
OC protection characteristics
Figure 38. OC protection at VOUT = 3.0 V
(STMPS2161/2171)
Figure 39. OC protection at VOUT = 3.0 V
(STMPS2161/2171- detail)
DocID013793 Rev 7
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39
Detail device characteristics
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Figure 40. OC protection at VOUT = 5.0 V
(STMPS2161/2171)
7.2.5
26/39
Figure 41. OC protection at VOUT = 5.0 V
(STMPS2161/2171- detail)
Other electrical characteristics
Figure 42. ICC vs. VIN (enabled)
(STMPS2161/2171)
Figure 43. ICC vs. temperature (enabled)
(STMPS2161/2171)
Figure 44. ICC vs. VIN (disabled)
(STMPS2161/2171)
Figure 45. ICC vs. temperature (disabled)
(STMPS2161/2171)
DocID013793 Rev 7
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Detail device characteristics
Figure 46. RON vs. VIN (STMPS2161/2171)
Figure 47. RON vs. temperature
(STMPS2161/2171)
Figure 48. IOS vs. temperature
(STMPS2161/2171)
Figure 49. Switch leakage vs. temperature
(STMPS2161/2171)
Figure 50. Output rise time vs. VIN
(STMPS2161/2171)
Figure 51. Output fall time vs. VIN
(STMPS2161/2171
DocID013793 Rev 7
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39
Detail device characteristics
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Figure 52. UVLO vs. temperature (STMPS2161/2171)
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STMPS2141, STMPS2151, STMPS2161, STMPS2171
8
Package mechanical data
Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK is an ST trademark.
Figure 53. SOT23-5L package outline
Table 17. SOT23-5L package mechanical data
Dimensions
Symbol
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
0.90
-
1.45
35.4
-
57.1
A1
0.00
-
0.10
0.0
-
3.9
A2
0.90
-
1.30
35.4
-
51.2
b
0.35
-
0.50
13.7
-
19.7
C
0.09
-
0.20
3.5
-
7.8
D
2.80
-
3.00
110.2
-
118.1
E
1.50
-
1.75
59.0
-
68.8
e
-
0.95
-
-
37.4
-
H
2.60
-
3.00
102.3
-
118.1
L
0.10
-
0.60
3.9
-
23.6
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39
Package mechanical data
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Figure 54. SOT23-5L footprint recommendations
Table 18. SOT23-5L footprint dimensions
Footprint data
Dimensions
Symbol
30/39
Millimeters
Inches
A
3.50
0.138
B
1.10
0.043
C
0.60
0.024
D
0.95
0.037
E
1.20
0.047
F
2.30
0.090
DocID013793 Rev 7
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Package mechanical data
Figure 55. SOT23-5L carrier tape
DocID013793 Rev 7
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39
Package mechanical data
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Figure 56. SO-8 package outline
0016023 C
1. Drawing is not to scale.
Table 19. SO-8 mechanical data
Dimensions
Symbol
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
1.35
-
1.75
0.053
-
0.069
A1
0.10
-
0.25
0.004
-
0.010
A2
1.10
-
1.65
0.043
-
0.065
B
0.33
-
0.51
0.013
-
0.020
C
0.19
-
0.25
0.007
-
0.010
D(1)
4.80
-
5.00
0.189
-
0.197
E
3.80
-
4.00
0.15
-
0.157
e
-
1.27
-
-
0.050
-
H
5.80
-
6.20
0.228
-
0.244
h
0.25
-
0.50
0.010
-
0.020
L
0.40
-
1.27
0.016
-
0.050
-
0.004
k
ddd
0° (min.), 8° (max.)
-
-
0.10
-
1. Dimension D does not include mold flash, protrusions or gate burrs. Mold flash, potrusions or gate burrs
shall not exceed 0.15 mm (0.006 inch) in total (both sides).
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Package mechanical data
Figure 57. SO-8 carrier tape
DocID013793 Rev 7
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39
Package mechanical data
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Figure 58. MSOP8 package outline
D
8
5
c
E1
1
E
4
k
A1
A
L
L2
A2
L1
ccc
b
e
POA 7113595
1. Drawing not to scale.
Table 20. MSOP8 package mechanical data
Dimensions
Symbol
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
-
-
1.10
-
-
0.043
A1
0.05
-
0.15
0.002
0.004
0.006
A2
0.75
0.85
0.95
0.031
0.034
0.037
b
0.25
-
0.40
0.010
0.013
0.016
c
0.13
-
0.23
0.005
0.007
0.009
D
2.90
3.00
3.10
0.114
0.118
0.122
E
4.65
4.90
5.15
0.187
0.193
0.199
E1
2.90
3.00
3.10
0.114
0.118
0.122
e
-
0.65
-
-
0.026
-
L
0.40
0.55
0.70
0.016
0.022
0.028
L1
-
0.95
-
-
0.037
K
0°
-
6°
0°
-
ccc
0.10
Figure 59. MSOP8 carrier tape
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DocID013793 Rev 7
6°
0.004
STMPS2141, STMPS2151, STMPS2161, STMPS2171
DocID013793 Rev 7
Package mechanical data
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39
Package mechanical data
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Figure 60. Reel information
Table 21. Reel mechanical data
Dimensions (mm)
Symbol
Min.
Typ.
Max.
−
−
180
330
C
12.8
13.0
13.2
D
20.2
−
−
N
60
−
−
T
−
−
22.4
A
SOT23-5L
S0-8, MSOP8
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9
Ordering information
Ordering information
Table 22. Order codes
Part number
Package
STMPS2141MTR
STMPS2151MTR
STMPS2161MTR
Marking
2141E
SO-8
2151E
2161E
STMPS2171MTR
2171E
STMPS2141STR
2141
STMPS2151STR
STMPS2161STR
SOT23-5L
2151
2161
STMPS2171STR
2171
STMPS2141TTR
2141
STMPS2151TTR
STMPS2161TTR
MSOP8
STMPS2171TTR
2151
2161
2171
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39
Revision history
10
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Revision history
Table 23. Document revision history
38/39
Date
Revision
Changes
01-Aug-2007
1
Initial release.
18-Dec-2007
2
Minor text changes, updated Figure 53 on page 28, added Section 7:
Detail device characteristics on page 16.
24-Jan-2008
3
Footnote added in Table 1 on page 1, replaced Figure 58 on page 32
and Table 20 on page 32, TSSOP8 package name replaced with
MSOP8.
17-Jul-2009
4
Updated Chapter 3, test conditions modified for Ireverse in Table 12
on page 14 and Chapter 7.
Added: Figure 55, Figure 56, Figure 59, Figure 59 and Figure 60.
21-Nov-2012
5
Updated Table 1 (replaced “Current limit” by “Rated continuous
output current”).
Updated values and units in Table 4 to Table 6.
Corrected Figure 1 and Figure 2 (replaced EN_N by EN).
Replaced II by IIN, ILIMIT by IOS, IO by IOUT, mS by ms, OC by FAULT,
Rds(on) by RON, VI and VCC by VIN, VO by VOUT, in the whole
document.
Updated Section 5 (added cross-references).
Updated Table 9 and Table 10 (replaced Tr by tr), Table 11 (updated
test conditions).
Updated Table 15 (replaced Fault, OCx, and VOC by FAULT).
Updated Table 16 (replaced VIENX by VIEN, mF by µF).
Updated titles of Figure 3 to Figure 52 (added conditions).
Updated Figure 3 to Figure 16, Figure 25, Figure 26, Figure 28 to
Figure 41, Figure 50 and Figure 51 (replaced RL by IL, mS by ms,
and uF by µF).
Updated Figure 55, Figure 59, and Figure 59 (removed superfluous
references to notes).
Reformatted Section 8 (moved Figure 57 on page 31).
Removed Figure 56.
Updated Table 21 (added SOT23-5L, SO-8, and MSOP package and
max. value for SOT23-5L package).
Added Section 9.
Minor corrections throughout document.
25-Jan-2013
6
Updated Features (added UL recognized components).
14-Feb-2022
7
Updated Features on the cover page, Figure 21, Figure 22,
Figure 46 and Figure 47.
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