FPF2116 IntelliMAX™ Advanced Load Management Products
August 2008
FPF2116
IntelliMAX™ Advanced Load Management Products
Features
1.8 to 5.5V Input Voltage Range
Controlled Turn-On
200mA Current Limit
Undervoltage Lockout
Thermal Shutdown
<2µA Shutdown Current
Auto Restart
Fast Current limit Response Time
3µs to Moderate Over Currents
20ns to Hard Shorts
Fault Blanking
Reverse Current Blocking
RoHS Compliant
tm
General Description
The FPF2116 is a load switch which provides full protection to
systems and loads which may encounter large current
conditions. This device contains a 0.125Ω current-limited P-
channel MOSFET which can operate over an input voltage
range of 1.8-5.5V. Internally, current is prevented from flowing
when the MOSFET is off and the output voltage is higher than
the input voltage. Switch control is by a logic input (ON)
capable of interfacing directly with low voltage control signals.
The part contains thermal shutdown protection which shuts off
the switch to prevent damage to the part when a continuous
over-current condition causes excessive heating.
When the switch current reaches the current limit, the part
operates in a constant-current mode to prohibit excessive
currents from causing damage. If the constant current condition
still persists after 30ms, the part will shut off the switch and pull
the fault signal pin (FLAGB) low. An auto-restart feature will turn
the switch on again after 480ms if the ON pin is still active. The
minimum current limit is 200mA.
The part is available in a space-saving 5 pin SOT23 package.
Applications
PDAs
Cell Phones
GPS Devices
MP3 Players
Digital Cameras
Peripheral Ports
Hot Swap Supplies
Typical Application Circuit
TO LOAD
V
IN
V
OUT
FPF2116
OFF ON
ON
GND
FLAGB
Ordering Information
Part
FPF2116
Current Limit
[mA]
200
Current Limit
Blanking Time
[ms]
30
Auto-Restart
Time
[ms]
480
ON Pin
Activity
Active HI
Top Mark
2116
©2008 Fairchild Semiconductor Corporation
1
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FPF2116 Rev. D
FPF2116 IntelliMAX™ Advanced Load Management Products
Functional Block Diagram
V
IN
UVLO
ON
CONTROL
LOGIC
REVERSE
CURRENT
BLOCKING
CURRENT
LIMIT
THERMAL
SHUTDOWN
V
OUT
FLAGB
GND
Pin Configuration
V
IN
1
GND
ON
2
3
SOT23-5
4
FLAGB
5
V
OUT
Pin Description
Pin
1
2
3
4
5
Name
V
IN
GND
ON
FLAGB
V
OUT
Ground
ON Control Input
Function
Supply Input: Input to the power switch and the supply voltage for the IC
Fault Output: Active LO, open drain output which indicates an over current supply,
under voltage or over temperature state.
Switch Output: Output of the power switch
FPF2116 Rev. D
2
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FPF2116 IntelliMAX™ Advanced Load Management Products
Absolute Maximum Ratings
Parameter
V
IN
, V
OUT
, ON, FLAGB to GND
Power Dissipation @ T
A
= 25°C (note 1)
Operating Junction Temperature
Storage Temperature
Thermal Resistance, Junction to Ambient
Electrostatic Discharge Protection
HBM
MM
4000
400
-40
-65
Min
-0.3
Max
6
667
125
150
150
Unit
V
mW
°C
°C
°C/W
V
V
Recommended Operating Range
Parameter
V
IN
Ambient Operating Temperature, T
A
Min
1.8
-40
Max
5.5
85
Unit
V
°C
Electrical Characteristics
V
IN
= 1.8 to 5.5V, T
A
= -40 to +85°C unless otherwise noted. Typical values are at V
IN
= 3.3V and T
A
= 25°C.
Parameter
Basic Operation
Operating Voltage
Quiescent Current
V
IN
Shutdown Current
V
OUT
Shutdown Current
On-Resistance
Symbol
V
IN
I
Q
I
OUT
= 0mA
Conditions
Min
1.8
Typ Max Units
5.5
95
110
200
2
2
125
150
160
200
200
V
0.5
1.0
1
1
0.1
0.15
0.2
0.3
1
V
µA
µA
V
µA
mA
°C
1.7
V
mV
mΩ
V
µA
µA
µA
V
IN
= 1.8 to 3.3V
V
IN
= 3.3 to 5.5V
V
ON
= 0V, V
IN
= 5.5V, V
OUT
short to GND
V
ON
= 0V, V
OUT
= 5.5V, V
IN
short to GND
V
IN
= 3.3V, I
OUT
= 50mA, T
A
= 25°C
R
ON
V
IN
= 3.3V, I
OUT
= 50mA, T
A
= 85°C
V
IN
= 3.3V, I
OUT
= 50mA, T
A
= -40°C to +85°C
65
0.75
1.30
V
IN
= 1.8V
V
IN
= 5.5V
V
IN
= 1.8V
V
IN
= 5.5V
V
ON
= V
IN
or GND
I
SWOFF
V
ON
= 0V, V
OUT
= 0V
V
IN
= 5V, I
SINK
= 10mA
V
IN
= 1.8V, I
SINK
= 10mA
V
IN
= 5V, Switch on
I
LIM
V
IN
= 3.3V, V
OUT
= 3.0V
Shutdown Threshold
Return from Shutdown
Hysteresis
UVLO
V
IN
Increasing
1.5
200
300
140
130
10
1.6
50
ON Input Logic High Voltage (ON)
ON Input Logic Low Voltage
ON Input Leakage
Off Switch Leakage
FLAGB Output Logic Low Voltage
FLAGB Output High Leakage Current
Protections
Current Limit
Thermal Shutdown
Under Voltage Shutdown
Under Voltage Shutdown Hysteresis
V
IH
V
IL
400
FPF2116 Rev. D
3
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FPF2116 IntelliMAX™ Advanced Load Management Products
Electrical Characteristics Cont.
V
IN
= 1.8 to 5.5V, T
A
= -40 to +85°C unless otherwise noted. Typical values are at V
IN
= 3.3V and T
A
= 25°C
.
Parameter
Dynamic
Turn On Time
Turn Off Time
V
OUT
Rise Time
V
OUT
Fall Time
Over Current Blanking Time
Auto-Restart Time
Short Circuit Response Time
Symbol
t
ON
t
OFF
t
RISE
t
FALL
t
BLANK
t
RESTART
Conditions
R
L
= 500Ω, C
L
= 0.1µF
R
L
= 500Ω, C
L
= 0.1µF
R
L
= 500Ω, C
L
= 0.1µF
R
L
= 500Ω, C
L
= 0.1µF
Min
Typ Max Units
25
50
12
120
µs
µs
µs
µs
60
960
ms
ms
µs
ns
15
240
V
IN
= V
ON
= 3.3V. Moderate
Over-Current Condition.
V
IN
= V
ON
= 3.3V. Hard Short.
30
480
3
20
Note 1:
Package power dissipation on 1square inch pad, 2 oz copper board.
FPF2116 Rev. D
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FPF2116 IntelliMAX™ Advanced Load Management Products
Typical Characteristics
120
V
ON
= V
IN
110
SUPPLY CURRENT (uA)
130
SUPPLY CURRENT (uA)
110
V
IN
= 5.5V
V
IN
= 3.3V
100
90
80
70
60
1.5
90
70
V
IN
= 1.8V
2
2.5
3
3.5
4
4.5
5
5.5
6
50
-40
-15
10
35
o
60
85
SUPPLY VOLTAGE (V)
T
J
, JUNCTION TEMPERATURE ( C)
Figure 1. Quiescent Current vs. Input Voltage
Figure 2. Quiescent Current vs. Temperature
2500
500
SUPPLY CURRENT (nA)
V
IN
= 5.5V
SUPPLY CURRENT (nA)
2000
400
1500
300
V
IN
= 5.5V
1000
V
IN
= 3.3V
200
V
IN
= 3.3V
500
100
0
-40
-15
10
35
o
60
85
0
-40
-15
10
35
o
60
85
T
J
, JUNCTION TEMPERATURE ( C)
T
J
, JUNCTION TEMPERATURE ( C)
Figure 3. I
SHUTDOWN
Current vs. Temperature
Figure 4. I
SWITCH-OFF
Current vs. Temperature
0.20
0.18
SUPPLY CURRENT (uA)
SUPPLY CURRENT (uA)
1.4
1.2
1
0.8
0.6
0.4
V
IN
= 3.3V
V
IN
= 5.5V
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
SUPPLY VOLTAGE (V)
0.2
0
-40
-15
10
35
o
60
85
T
J
, JUNCTION TEMPERATURE ( C)
Figure 5. Reverse Current vs. Output Voltage
Figure 6. Reverse Current vs. Temperature
FPF2116 Rev. D
5
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