MP62170-1/MP62171-1
The Future of Analog IC Technology
3.3V/5V, Single-Channel 1.5A
Current-Limited Power Distribution Switch
with Output Discharge
FEATURES
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1.5A Continuous Current
Accurate Current Limit
Output Discharge Function
2.7V to 5.5V Supply Range
90uA Quiescent Current
75mΩ MOSFET
Thermal-Shutdown Protection
Under-Voltage Lockout
8ms FLAG Deglitch Time
No FLAG Glitch During Power Up
Reverse Current Blocking
Active High & Active Low Options
SOIC8 & MSOP8 Packages
Smartphone and PDA
Portable GPS Device
Notebook PC
Set-top-box
Telecom and Network Systems
PC Card Hot Swap
USB Power Distribution
DESCRIPTION
The MP62170-1/MP62171-1 Power Distribution
Switch features internal current limiting to
prevent damage to host devices due to faulty
load conditions. The MP62170-1/MP62171-1
analog switch has 75mΩ on-resistance and
operates from 2.7V to 5.5V input. It is available
with guaranteed current limits, making it ideal
for load switching applications. The MP62170-
1/MP62171-1 has built-in protection for both
over current and increased thermal stress. For
over current, the device will limit the current by
changing to a constant current mode.
As the temperature increases as a result of
short circuit, then the device will shut off. The
device will recover once the device temperature
reduces to approx 120°C.
MP62170-1/MP62171-1 involves discharge
function that provides a resistive discharge path
for the external output capacitor when the part
is disabled.
MP62170-1/MP62171-1 is available in 8-pin
MSOP and SOIC package without exposed pad.
APPLICATIONS
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
3.3V / 5V Input
1 GND
MP62170-1/
MP62171-1
2, 3 IN
OUT
6, 7, 8
To V
BUS
USB Ports
4
EN*
FLAG 5
* EN is active high for MP62171-1
SINGLE-CHANNEL
MP62170-1/MP62171-1 Rev.1.0
www.MonolithicPower.com
10/26/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
1
MP62170-1/MP62171-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
ORDERING INFORMATION
Part Number
MP62170ES-1*
MP62170EK-1
MP62171ES-1
MP62171EK-1
Maximum
Typical Short-
Enable Switch Continuous Circuit Current Package Top Marking
Load Current
@ T
A
=25C
Active
Low
Active
High
Single
1.5A
2.3A
SOIC8
MSOP
SOIC8
MSOP
62170ES-1
62170EK-1
62171ES-1
62171EK-1
Free Air
Temperature
(T
A
)
-20°C to +85°C
* For Tape & Reel, add suffix –Z (e.g. MP62170ES-1–Z).
For RoHS compliant packaging, add suffix –LF(e.g. MP62170ES-1–LF–Z)
PACKAGE REFERENCE
TOP VIEW
GND
IN
IN
EN*
1
2
3
4
8
7
6
5
OUT
OUT
OUT
FLAG
GND
IN
IN
EN*
1
2
3
4
8
7
6
5
OUT
OUT
OUT
FLAG
SOIC8
MP62170-1
Single-Channel
(* EN is active high for MP62171-1)
MSOP8
ABSOLUTE MAXIMUM RATINGS
(1)
IN .................................................-0.3V to +6.0V
EN, FLAG, OUT to GND ..............-0.3V to +6.0V
Continuous Power Dissipation (T
A
= +25°C)
(2)
SOIC8..................................................... 1.4W
MSOP8...................................................... 0.8W
Junction Temperature ...............................150°C
Lead Temperature ....................................260°C
Storage Temperature...............
-
65°C to +150°C
Operating Junct. Temp (T
J
).......
-2
0°C to +125°C
Thermal Resistance
(3)
SOIC8..................................... 90 ...... 42...
°C/W
MSOP8…. ............................. 150 ..... 65...
°C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature T
J
(MAX), the junction-to-
ambient thermal resistance
θ
JA
, and the ambient temperature
T
A
. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by P
D
(MAX) = (T
J
(MAX)-T
A
)/θ
JA
. Exceeding the maximum allowable power
dissipation will cause excessive die temperature, and the
regulator will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
3) Measured on JESD51-7， 4-layer PCB.
θ
JA
θ
JC
MP62170-1/MP62171-1 Rev.1.0
www.MonolithicPower.com
10/26/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
2
MP62170-1/MP62171-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
ELECTRICAL CHARACTERISTICS
(4)
V
IN
=5V, T
A
=+25°C, unless otherwise noted.
Parameter
IN Voltage Range
Supply Current
Shutdown Current
Off Switch Leakage
Current Limit
Trip Current
Under-voltage Lockout
Under-voltage Hysteresis
FET On Resistance
EN Input Logic High Voltage
EN Input Logic Low Voltage
FLAG Output Logic Low Voltage
FLAG Output High Leakage
Current
Thermal Shutdown
Thermal Shutdown Hysteresis
V
OUT
Rising Time, Tr
(5)
V
OUT
Falling Time, Tf
(6)
Turn On Time, Ton
(7)
Turn Off Time, Toff
(8)
Condition
EN Enabled, I
OUT
=0
Device Disable, V
OUT
=float, V
IN
=5.5V
Device Disable, V
IN
=5.5V
Min
2.7
Typ
90
1
1
Max
5.5
120
Units
V
µA
µA
µA
A
A
V
mV
mΩ
V
V
V
µA
°C
°C
ms
ms
ms
ms
ms
ms
Ω
ms
µA
µA
1.6
Current Ramp (slew rate≤100A/s) on
Output
Rising Edge
I
OUT
=100mA (-20°C≤T
A
≤+85°C)
2
I
SINK
=5mA
V
IN
=V
FLAG
=5.5V
2.3
2.5
3
3.3
2.65
1.95
250
75
130
0.8
0.4
1
V
IN
=5.5V, C
L
=1uF, R
L
=5.5Ω
V
IN
=2.7V, C
L
=1uF, R
L
=5.5Ω
V
IN
=5.5V, C
L
=1uF, R
L
=5.5Ω
V
IN
=2.7V, C
L
=1uF, R
L
=5.5Ω
C
L
=100µF, R
L
=5.5Ω
C
L
=100µF, R
L
=5.5Ω
140
20
0.9
1.7
0.5
0.5
3
10
500
4
8
1
0.2
15
Discharge Resistance
FLAG Deglitch Time
EN Input Leakage
Reverse Leakage Current
V
OUT
=5.5V, V
IN
=GND
Notes:
4) Production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization.
5) Measured from 10% to 90% output signal.
6) Measured from 90% to 10% output signal.
7) Measured from 50% EN signal to 90% output signal.
8) Measured from 50% EN signal to 10% output signal.
MP62170-1/MP62171-1 Rev.1.0
www.MonolithicPower.com
10/26/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
3
MP62170-1/MP62171-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
PIN FUNCTIONS
SOIC8
MSOP8
1
2, 3
4
5
6, 7, 8
Name
GND
IN
———
Description
Ground.
Input Voltage. Accepts 2.7V to 5.5V input.
Active High: (MP62171-1), Active Low: (MP62170-1).
IN-to-OUT Over-current, active-low output flag. Open-Drain.
IN-to-OUT Power-Distribution Output (for all 3 output pins)
EN
FLAG
OUT
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= +25ºC, unless otherwise noted.
OUTx
tr
R
L
C
L
Vo (OUTx)
90%
10%
90%
10%
tf
TEST CIRCUIT
ENx
ton
50%
50%
ENx
toff
ton
50%
50%
toff
90%
10%
Vo (OUTx)
90%
10%
Vo (OUTx)
VOLTAGE WAVEFORMS
Figure 1—Test Circuit and Voltage Waveforms
MP62170-1/MP62171-1 Rev.1.0
www.MonolithicPower.com
10/26/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
4
MP62170-1/MP62171-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
TYPICAL PERFORMANCE CHARACTERISTICS
(CONTINUED)
V
IN
= 5V, V
EN
= 0V, V
CC
= 5V, C
L
= 2.2uF, T
A
= +25°C, unless otherwise noted.
4
TURN ON DELAY (ms)
1.2
TURN OFF DELAY (ms)
2
1.8
3.5
3
2.5
2
1.5
1
2.5
3
3.5
4
4.5
5
5.5
6
1.1
RISE TIME(ms)
1.6
1.4
1.2
1
1
0.9
0.8
2.5
3
3.5
4
4.5
5
5.5
6
0.8
2.5 3
3.5
4
4.5
5
5.5
6
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Supply Current, Output Enabled Static Drain-Source On-State
Resistance Variation vs.
vs.Input Voltage
Ambient Temperature
70
65
FALL TIME (us)
SUPPLY CURRENT (uA)
120
110
100
90
80
70
2.5 3
60
55
50
45
2.5
3
3.5
4
4.5
5
5.5
6
3.5 4
4.5
5
5.5
6
I
O
=0.1A
30
25
20
15
10
5
0
-5
-10
-15
-20
-25
-30-20-10 0 10 20 30 40 50 60 70 80 90
AMBIENT TEMPERATURE (
o
C)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
STATIC DRAIN-SOURCE ON-STATE
RESISTANCE VARIATION (%)
Static Drain-Source On-State
Resistance vs.
Input Voltage
I
O
=1.5A
STATIC DRAIN-SOURCE ON-STATE
INPUT TO OUTPUT VOLTAGE (mV)
Input to Output Voltage vs.
Load Current
200
180
140
120
100
80
60
40
20
0
1.8
0
0.3
0.6
0.9
1.2
OUTPUT CURRENT (A)
1.5
CURRENT LIMIT (A)
Current Limit vs.
Input Voltage
2.3
2.2
2.1
2
1.9
140
130
120
110
100
90
80
70
2.5
3 3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
6
160
2.5
3 3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
6
MP62170-1/MP62171-1 Rev.1.0
www.MonolithicPower.com
10/26/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
5
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