MP62260-1/MP62261-1
The Future of Analog IC Technology
3.3V/5V, Single-Channel 2A
Current-Limited Power Distribution Switch
with Output Discharge
DESCRIPTION
The MP62260-1/MP62261-1 Power Distribution
Switch features internal current limiting to
prevent damage to host devices due to faulty
load conditions. The MP62260-1/MP62261-1
operates from 2.7V to 5.5V nominal input
voltage and includes a 45m
Ω
Power MOSFET
to handle up to 2A continuous load with a 3A
typical current limit. The MP62260-1/MP62261-
1 has built-in protection for both over current
and increased thermal stress. For over-current
protection (OCP), the device will limit the
current by going into a constant current mode.
When continuous output overload condition
exceeds power dissipation of the package, the
thermal protection will shut the part off. The
device will recover once the device temperature
reduces to approx 120°C.
The MP62260-1/MP62261-1 involves output
discharge function that provides a resistive
discharge path for the external output capacitor
when the part is disabled.
The MP62260-1/MP62261-1 is available in
SOIC8 package.
FEATURES
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•
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2A Continuous Current
3A Accurate Current Limit
Output Discharge Function
2.7V to 5.5V Supply Range
90uA Quiescent Current
45mΩ 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 Package
Smartphone and PDA
Portable GPS Device
Notebook PC
Set-top-box
Telecom and Network Systems
PC Card Hot Swap
USB Power Distribution
APPLICATIONS
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
MP62260-1/
MP62261-1
*
(*is active high for MP62261-1)
MP62260-1/MP62261-1 Rev. 0.9
www.MonolithicPower.com
1/12/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
1
MP62260-1/MP62261-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH WITH OUTPUT DISCHARGE
ORDERING INFORMATION
Part Number
Enable
Maximum
Switch Continuous
Load Current
2A
2A
Typical Short-
Circuit Current Package
@ T
A
=25°C
3A
3A
SOIC8
SOIC8
Top
Free Air
Marking Temperature (T
A
)
62260DS1
62261DS1
-40°C to +85°C
-40°C to +85°C
MP62260DS-1* Active Low Single
MP62261DS-1 Active High Single
*
For Tape & Reel, add suffix
–
Z (eg. MP62260DS-1
–
Z).
For RoHS Compliant Packaging, add suffix
–
LF (eg. MP62260DS-1
–
LF
–
Z)
PACKAGE REFERENCE
TOP VIEW
GND
IN
IN
EN*
1
2
3
4
8
7
6
5
OUT
OUT
OUT
FLAG
SOIC8
MP62260-1/MP62261-1
Single-Channel
(*is active high for MP62261-1)
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
Junction Temperature ...............................150°C
Lead Temperature ....................................260°C
Storage Temperature............... -65°C to +150°C
Operating Junct. Temp (T
J
)...... -40°C to +125°C
Thermal Resistance
(3)
SOIC8..................................... 90 ...... 42...
°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
MP62260-1/MP62261-1 Rev. 0.9
www.MonolithicPower.com
1/12/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
2
MP62260-1/MP62261-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH WITH OUTPUT DISCHARGE
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)
Discharge Resistance
FLAG Deglitch Time
EN Input Leakage
Reverse Leakage Current
V
OUT
=5.5V, V
IN
=GND
4
-1
0.2
V
IN
=5.5V, C
L
=1uF, R
L
=5Ω
V
IN
=2.7V, C
L
=1uF, R
L
=5Ω
V
IN
=5.5V, C
L
=1uF, R
L
=5Ω
V
IN
=2.7V, C
L
=1uF, R
L
=5Ω
C
L
=100µF, R
L
=5Ω
C
L
=100µF, R
L
=5Ω
100
8
15
I
SINK
=5mA
V
IN
=V
FLAG
=5.5V
140
20
0.9
1.7
0.5
0.5
3
10
I
OUT
=100mA and -40°C≤T
A
≤85°C
2
0.8
0.4
1
Current Ramp (slew rate≤100A/s) on
Output
Rising Edge
Device Enabled, I
OUT
=0
Device Disabled, V
OUT
=float, V
IN
=5.5V
Device Disabled, V
IN
=5.5V
2.2
Condition
Min
2.7
90
1
1
3
3.3
1.95
2.30
250
45
70
3.8
4.3
2.65
Typ
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
NOTE:
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.
MP62260-1/MP62261-1 Rev. 0.9
www.MonolithicPower.com
1/12/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
3
MP62260-1/MP62261-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH WITH OUTPUT DISCHARGE
PIN FUNCTIONS
Pin #
SOIC8
1
2, 3
4
5
6, 7, 8
Name
GND
IN
———
Description
Ground.
Input Voltage. Accepts 2.7V to 5.5V input.
Active Low: (MP62260-1), Active High: (MP62261-1).
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.
OUT
X
RL
CL
V
O
(OUT
X
)
t
r
90%
10%
90%
10%
t
f
TEST CIRCUIT
50%
V
I
(EN
X
)
50%
VI(ENX)
50%
50%
t
on
V
O
(OUT
X
)
90%
10%
t
off
VO(OUTX)
ton
90%
10%
toff
VOLTAGE WAVEFORMS
Figure 1—Test Circuit and Voltage Waveforms
MP62260-1/MP62261-1 Rev. 0.9
www.MonolithicPower.com
1/12/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
4
MP62260-1/MP62261-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH WITH OUTPUT DISCHARGE
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
=5V, V
EN
=0V for MP62260-1, V
CC
=5V, C
L
=2.2uF, T
A
=25℃ unless otherwise noted.
Turn on Delay vs.
Input Votage
3.5
I
O
=2A, C
L
=100uF
1
Turn off Delay vs.
Input Votage
I
O
=2A, C
L
=100uF
1.4
1.3
Rise Time vs.
Input Votage
I
O
=2A, C
L
=1uF
TURN ON DELAY (ms)
3
2.5
2
1.5
1
2.5
TURN OFF DELAY (ms)
0.8
RISE TIME(ms)
0.6
0.4
0.2
0
2.5
1.2
1.1
1
0.9
0.8
2.5
3
3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
6
3 3.5
4 4.5
5 5.5
INPUT VOLTAGE (V)
6
3
3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
6
Fall Time vs.
Input Votage
150
130
I
O
=2A, C
L
=1uF
Supply Current, Output
Enabled vs. Input Voltage
STATIC DRAIN-SOURCE ON-STATE
RESISTANCE VARIATION (%)
110
Static Drain-Source On-State
Resistance Variation vs.
Ambient Temperature
I
O
=0.1A
25
20
15
10
5
0
-5
-10
-15
-20
-25
-30
-40 -20
0
SUPPLY CURRENT (uA)
100
90
80
70
60
2.5
FALL TIME (us)
110
90
70
50
2.5
3
3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
6
3
3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
6
20
40
60
80
Static Drain-Source
On-State Resistance
vs. Input Voltage
INPUT TO OUTPUT VOLTAGE (mV)
80
I
O
=2A
160
140
120
100
80
60
40
20
0
Input to Output Voltage
vs. Load Current
3.5
V
IN
=2.7V
V
IN
=3.3V
V
IN
=4V
V
IN
=5V
V
IN
=5.5V
Current Limit vs.
Input Voltage
70
CURRENT LIMIT (A)
3.3
3.1
2.9
2.7
2.5
2.5
60
50
40
2.5
3 3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
6
0
0.4
0.8
1.2
1.6
OUTPUT CURRENT (A)
2
3
3.5
4
4.5
5
5.5
6
INPUT VOLTAGE (V)
MP62260-1/MP62261-1 Rev. 0.9
www.MonolithicPower.com
1/12/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
5
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