MIC2025/2075
Single-Channel Power Distribution Switch
Features
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140 mΩ Maximum On-Resistance
2.7V to 5.5V Operating Range
500 mA Minimum Continuous Output Current
Short-Circuit Protection with Thermal Shutdown
Fault Status Flag with 3 ms Filter Eliminates False
Assertions
Undervoltage Lockout
Reverse Current Flow Blocking (No “Body Diode”)
Circuit Breaker Mode (MIC2075) Reduces Power
Consumption
Logic-Compatible Input
Soft-Start Circuit
Low Quiescent Current
Pin Compatible with MIC2525
UL File #E179633
USB Peripherals
General Purpose Power Switching
ACPI Power Distribution
Notebook PCs
PDAs
PC Card Hot Swap
General Description
The MIC2025 and MIC2075 are high-side MOSFET
switches optimized for general-purpose power
distribution requiring circuit protection.
The MIC2025/75 are internally current limited and have
thermal shutdown that protects the device and load.
The MIC2075 offers “smart” thermal shutdown that
reduces current consumption in fault modes. When a
thermal shutdown fault occurs, the output is latched off
until the faulty load is removed. Removing the load or
toggling the enable input will reset the device output.
Both devices employ soft-start circuitry that minimizes
inrush current in applications where highly capacitive
loads are employed. A fault status output flag is
provided that is asserted during overcurrent and
thermal shutdown conditions.
The MIC2025/75 are available in the 8-Pin MSOP and
8-Pin SOIC packages.
Applications
Package Type
MIC2025/2075
8-Pin SOIC (YM)
8-Pin MSOP(YMM)
MIC2025/75
EN
FLG
GND
NC
1
2
3
4
8
7
6
5
OUT
IN
OUT
NC
2018 Microchip Technology Inc.
DS20006030A-page 1
MIC2025/2075
Functional Block Diagram
EN
THERMAL
SHUTDOWN
1.2V
REFERENCE
OSC.
UVLO
IN
CHARGE
PUMP
GATE
CONTROL
CURRENT
LIMIT
FLAG
RESPONSE
DELAY
OUT
FLG
GND
Typical Application Circuit
V
CC
2.7V to 5.5V
10k
Logic Controller
VIN
1μF
ON/OFF
OVERCURRENT
GND
MIC2025/75
EN
FLG
GND
NC
OUT
IN
OUT
NC
0.1μF
Load
DS20006030A-page 2
2018 Microchip Technology Inc.
MIC2025/2075
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
Supply Voltage (V
IN
) .................................................................................................................................... –0.3V to +6V
Fault Flag Voltage (V
FLG
)............................................................................................................................................+6V
Fault Flag Current (I
FLG
) .........................................................................................................................................25 mA
Output Voltage (V
OUT
) ................................................................................................................................................+6V
Output Current (I
OUT
)............................................................................................................................. Internally Limited
Enable Input (I
EN
) ................................................................................................................................. –0.3V to V
IN
+ 3V
ESD Rating .......................................................................................................................................................... (Note
1)
Operating Ratings ‡
Supply Voltage (V
IN
) ................................................................................................................................. +2.7V to +5.5V
† Notice:
Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of the device at those or any other conditions above those indicated
in the operational sections of this specification is not intended. Exposure to maximum rating conditions for extended
periods may affect device reliability. Specifications are for packaged product only.
‡ Notice:
The device is not guaranteed to function outside its operating ratings.
Note 1:
Devices are ESD sensitive. Handling precautions are recommended.
TABLE 1-1:
ELECTRICAL CHARACTERISTICS
Electrical Characteristics:
V
IN
= +5V; T
A
= +25°C,
Bold
values indicate –40°C ≤ T
A
≤ +85°C; unless otherwise
specified.
Parameter
Symbol
Min.
—
—
Supply Current
I
DD
—
—
Enable Input Voltage
Enable Input Hysteresis
Enable Input Current
Control Input Capacitance
Switch Resistance
Output Leakage Current
OFF Current in Latched
Thermal Shutdown
Output Turn-On Delay
Output Turn-On Rise Time
Output Turn-Off Delay
I
EN
—
R
DS(ON)
—
—
t
ON
t
R
t
OFF
—
V
EN
0.8
—
–1
—
—
—
—
—
1
0.5
—
—
—
2.1
1.9
200
0.01
1
90
100
—
50
2.5
2.3
50
160
160
2.4
—
—
1
—
140
160
10
—
6
5.9
100
µA
µA
V
V
mV
µA
pF
mΩ
mΩ
µA
µA
ms
ms
µs
Typ.
0.75
0.75
Max.
5
5
Units
µA
µA
Conditions
MIC20x5-1, V
EN
≤ 0.8V (switch off),
OUT = open
MIC20x5-2, V
EN
≥ 2.4V (switch off),
OUT = open
MIC20x5-1, V
EN
≥ 2.4V (switch on),
OUT = open
MIC20x5-2, V
EN
≤ 0.8V (switch on),
OUT = open
Low-to-High Transition
High-to-Low Transition
—
V
EN
= 0V to 5.5V
—
V
IN
= 5V, I
OUT
= 500 mA
V
IN
= 3.3V, I
OUT
= 500 mA
MIC2025/2075 (output off)
MIC2075
(during thermal shutdown state)
R
L
= 10Ω, C
L
= 1 µF, (see
Timing
Diagrams)
R
L
= 10Ω, C
L
= 1 µF, (see
Timing
Diagrams)
R
L
= 10Ω, C
L
= 1 µF, (see
Timing
Diagrams)
2018 Microchip Technology Inc.
DS20006030A-page 3
MIC2025/2075
Electrical Characteristics:
V
IN
= +5V; T
A
= +25°C,
Bold
values indicate –40°C ≤ T
A
≤ +85°C; unless otherwise
specified.
Parameter
Output Turn-Off Fall Time
Short-Circuit Output Current
Current-Limit Threshold (See
Figure 2-22)
Short-Circuit Response Time
Overcurrent Flag Response
Delay
Undervoltage Lockout
Threshold
Error Flag Output Resistance
Error Flag Off Current
Overtemperature Threshold
Symbol
t
F
I
LIMIT
—
—
Min.
—
0.5
0.60
—
1.5
t
D
1.5
2.2
2.0
—
—
—
—
—
3
2.5
2.3
8
11
—
140
120
8
2.7
2.5
25
40
10
—
—
ms
V
V
Ω
Ω
µA
°C
°C
Typ.
50
0.7
0.85
24
3
Max.
100
1.25
1.25
—
7
Units
µs
A
A
µs
ms
Conditions
R
L
= 10Ω, C
L
= 1 µF, (see
Timing
Diagrams)
V
OUT
= 0V, enabled into
short-circuit
Ramped load applied to output
V
OUT
= 0V to I
OUT
= I
LIMIT
(short applied to output)
V
IN
= 5V, apply V
OUT
= 0V until
FLG low
V
IN
= 3.3V, apply V
OUT
= 0V until
FLG low
V
IN
Rising
V
IN
Falling
I
L
= 10 mA, V
IN
= 5V
I
L
= 10 mA, V
IN
= 3.3V
V
FLAG
= 5V
T
J
increasing
T
J
decreasing
DS20006030A-page 4
2018 Microchip Technology Inc.
MIC2025/2075
TEMPERATURE SPECIFICATIONS (Note
1)
Parameters
Temperature Ranges
Storage Temperature Range
Ambient Temperature Range
Junction Temperature Range
Package Thermal Resistances
Thermal Resistance SOIC 8-LD
Thermal Resistance MSOP 8-LD
Note 1:
JA
JA
—
—
160
206
—
—
°C/W
°C/W
—
—
T
S
T
A
T
J
–65
–40
—
—
—
—
+150
+85
—
°C
°C
°C
—
—
Internally Limited
Sym.
Min.
Typ.
Max.
Units
Conditions
The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable
junction temperature and the thermal resistance from junction to air (i.e., T
A
, T
J
,
JA
).
Test Circuit
V
OUT
Device
Under OUT
Test
I
OUT
R
L
C
L
FIGURE 1-1:
MIC2025/2075 Test Circuit.
2018 Microchip Technology Inc.
DS20006030A-page 5
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