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電子部品 FPF2148 Datasheet 詳細情報 ( 特性, スペック, ピン接続図 )

部品番号 FPF2148
部品説明 Full Function Load Switch
メーカ Fairchild Semiconductor
ロゴ Fairchild Semiconductor ロゴ 
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FPF2148 Datasheet, FPF2148 PDF,ピン配置, 機能
FPF2148
Full Function Load Switch
Features
„ 1.8 to 5.5V Input Voltage Range
„ Controlled Turn-On
„ 200mA Current Limit Options
„ Undervoltage Lockout
„ Thermal Shutdown
„ <2µA Shutdown Current
„ Fast Current limit Response Time
„ 5µs to Moderate Over Currents
„ 30ns to Hard Shorts
„ Fault Blanking
„ Power Good Function
„ RoHS Compliant
Applications
„ PDAs
„ Cell Phones
„ GPS Devices
„ MP3 Players
„ Digital Cameras
„ Peripheral Ports
„ Hot Swap Supplies
November 2008
tm
General Description
The FPF2148 is a load switch which provides full protection to
systems and loads which may encounter large current
conditions. These devices contain a 0.12current-limited
P-channel MOSFET which can operate over an input voltage
range of 1.8-5.5V. Switch control is by a logic input (ONB)
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. For the FPF2148, a current limit
condition will immediately pull the fault signal pin low and the
part will remain in the constant-current mode until the switch
current falls below the current limit. The minimum current limit is
200mA.
The part is available in a space-saving 6 pin 2X2 MLP package.
BOTTOM
Pin 1
TOP
Ordering Information
Part
FPF2148
Current Limit
[mA]
200/300/400
Current Limit
Blanking Time
[ms]
0
Auto-Restart
Time
[ms]
NA
ONB Pin
Activity
Active LO
©2008 Fairchild Semiconductor Corporation
FPF2148 Rev. H
1
www.fairchildsemi.com

--------------------------------------------
FPF2148 pdf, 電子部品, 半導体, ピン配列
Pin Configuration
ONB 6
1 PGOOD
GND 5 7 2 VIN
FLAGB 4
3 VOUT
2X2 MicroFET-6
Pin Description
Pin Name
1 PGOOD
2 VIN
3 VOUT
4 FLAGB
5, 7 GND
6 ONB
Function
Power Good output: Open drain output which indicate that output voltage has reached
90% of input voltage
Supply Input: Input to the power switch and the supply voltage For the IC
Switch Output: Output of the power switch
Fault Output: Active LO, open drain output which indicates an over current supply under
voltage or over temperature state.
Ground
ON Control Input
Absolute Maximum Ratings
Parameter
VIN, VOUT, ONB, FLAGB, PGOOD to GND
Power Dissipation
Operating and Storage Junction Temperature
Thermal Resistance, Junction to Ambient
Jedec A114A
Jedec C101C
Electrostatic Discharge Protection
Jedec A115
IEC 61000-4-2
HBM
CDM
MM
Air Discharge
Contact Discharge
Min
-0.3
-65
4000
2000
400
15000
8000
Max
6
1.2
150
86
Unit
V
W
°C
°C/W
V
V
V
V
V
Recommended Operating Range
Parameter
VIN
Ambient Operating Temperature, TA
Min
Max
Unit
1.8 5.5
V
-40 85 °C
Electrical Characteristics
VIN = 1.8 to 5.5V, TA = -40 to +85°C unless otherwise noted. Typical values are at VIN = 3.3V and TA = 25°C.
Parameter
Symbol
Conditions
Min
Basic Operation
Operating Voltage
Quiescent Current
VIN
IQ IOUT = 0mA
VIN = 1.8V
VIN = 3.3V
VIN = 5.5V
1.8
40
Typ
70
75
85
Max Units
5.5 V
100
µA
120
FPF2148 Rev. H
3 www.fairchildsemi.com





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