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PDF FPF2172 Data sheet ( Hoja de datos )
| Número de pieza | FPF2172 | |
| Descripción | Advanced Load Management Products | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de FPF2172 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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APRIL 2006
FPF2172
IntelliMAX™ Advanced Load Management Products
tm
Features
1.8 to 5.5V Input Voltage Range
Controlled Turn-On
200mA Current Limit Option
Undervoltage Lockout
Thermal Shutdown
<1µA Shutdown Current
Fast Current limit Response Time
3µs to Moderate Over Currents
20ns to Hard Shorts
Integrated very low VF Schottky Diode for
Reverse Current Blocking
Applications
PDAs
Cell Phones
GPS Devices
MP3 Players
Digital Cameras
Peripheral Ports
Hot Swap Supplies
General Description
The FPF2172 is a load switch which combines the functionality
of the IntelliMAXTM series load switch with a very low forward
voltage drop Schottky barrier rectifier. The integrated solution
provides full protection to systems and loads which may
encounter large current conditions in a very compact MLP 3x3
package. This device contain a 0.125Ω current-limited
P-channel MOSFET which can operate over an input voltage
range of 1.8-5.5V. The Schottky diode acts as a barrier so that
no reverse current can flow 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. Each 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 10ms, these parts will shut off the switch and
pull the fault signal pin (FLAGB) low. The switch will remain off
until the ON pin is cycled. The minimum current limit is 200mA.
These parts are available in a space-saving 6L MLP 3x3
package.
Typical Application Circuit
OFF ON
VIN VOUT
FPF2172
ON FLAGB
GND
TO LOAD
©2006 Fairchild Semiconductor Corporation
FPF2172 Rev. E
1
www.fairchildsemi.com
1 page  
Typical Characteristics
100
VON = VIN
95
90
85
80
1
2345
SUPPLY VOLTAGE (V)
6
Figure 1. Quiescent Current vs. Input Voltage
120
110
100
90
80
70
VIN = 5.5V
VIN = 3.3V
VIN = 1.8V
60
-40
-15 10 35 60
TJ, JUNCTION TEMPERATURE (oC)
Figure 2. Quiescent Current vs. Temperature
85
2
1.6
1.2
0.8
VIN = 5.5V
0.4
VIN = 3.3V
0
-40 -15 10 35 60
TJ, JUNCTION TEMPERATURE (oC)
Figure 3. ISHUTDOWN Current vs. Temperature
85
0.6
0.4
0.2
0
-40
VIN = 5.5V
VIN = 3.3V
-15 10 35 60
TJ, JUNCTION TEMPERATURE (oC)
Figure 4. ISWITCH-OFF Current vs. Temperature
85
60
VIN = 3.3V
55
50
45
40
-40
-15 10 35 60
TJ, JUNCTION TEMPERATURE (oC)
Figure 5. Latchoff current vs. Temperature
85
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.5
2 2.5 3 3.5 4 4.5 5 5.5
VIN, INPUT VOLTAGE (V)
Figure 6. Input Voltage vs. On Threshold Voltage
6
FPF2172 Rev.E
5 www.fairchildsemi.com
5 Page 
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not
intended to be an exhaustive list of all such trademarks.
ACEx™
FAST®
ISOPLANAR™
PowerEdge™
SuperFET™
ActiveArray™
Bottomless™
Build it Now™
FASTr™
FPS™
FRFET™
LittleFET™
PowerSaver™
MICROCOUPLER™ PowerTrench®
MicroFET™
QFET®
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
CoolFET™
GlobalOptoisolator™ MicroPak™
QS™
SyncFET™
CROSSVOLT™
DOME™
EcoSPARK™
E2CMOS™
GTO™
HiSeC™
I2C™
i-Lo™
MICROWIRE™
MSX™
MSXPro™
OCX™
QT Optoelectronics™ TCM™
Quiet Series™
TinyLogic®
RapidConfigure™ TINYOPTO™
RapidConnect™
TruTranslation™
EnSigna™
FACT™
ImpliedDisconnect™ OCXPro™
IntelliMAX™
OPTOLOGIC®
FACT Quiet Series™
OPTOPLANAR™
µSerDes™
UHC™
ScalarPump™
UltraFET®
SILENT SWITCHER® UniFET™
Across the board. Around the world.™
The Power Franchise®
Programmable Active Droop™
PACMAN™
POP™
Power247™
SMART START™
SPM™
Stealth™
VCX™
Wire™
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN;
NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE
SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS,
SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR
CORPORATION.
As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body, or
(b) support or sustain life, or (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in significant injury to the user.
2. A critical component is any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Advance Information
Formative or In
Design
Preliminary
First Production
No Identification Needed
Full Production
Definition
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
FPF2172 Rev.E
Rev. I19
11 www.fairchildsemi.com
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet FPF2172.PDF ] | |
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