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PDF RT9701 Data sheet ( Hoja de datos )
| Número de pieza | RT9701 | |
| Descripción | Power Distribution Switches | |
| Fabricantes | Richtek | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RT9701 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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RT9701
100mΩ Power Distribution Switches
General Description
The RT9701 is an integrated 100mΩ power switch for
self-powered and bus-powered Universal Series Bus
(USB) applications. A built-in charge pump is used to
drive the N-Channel MOSFET that is free of parasitic
body diode to eliminate any reversed current flow across
the switch when it is powered off. Its low quiescent current
(23uA) and small package (SOT-23-5) is particularly
suitable in battery-powered portable equipment.
Several protection functions include soft start to limit inrush
current during plug-in, current limiting at 1.5A to meet
USB power requirement, and thermal shutdown to protect
damage under over current conditions.
Ordering Information
RT9701
Package Type
B : SOT-23-5
BL : SOT-23-5 (L-Type)
Note :
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Features
z 100mΩ Typ. High-Side NMOSFET (SOT-23-5)
z Guaranteed 1.1A Continuous Current
z 1.5A Current Limit
z Small SOT-23-5 Package Minimizes Board Space
z Soft Start
z Thermal Protection
z Low 23uA Supply Current
z Wide Input Voltage Range : 2.2V to 6V
z UL Approved - #E219878
z RoHS Compliant and 100% Lead (Pb)-Free
Applications
z Battery-Powered Equipment
z Motherboard USB Power Switch
z USB Device Power Switch
z Hot-Plug Power Supplies
z Battery-Charger Circuits
Pin Configurations
(TOP VIEW)
VOUT
5
EN
4
23
VOUT GND VIN
SOT-23-5
VOUT
5
VIN
4
23
VOUT GND VIN
SOT-23-5 (L-Type)
Typical Application Circuit
VIN
CIN
1uF
RT9701xBL
VIN VOUT
VIN VOUT
GND
VOUT
* COUT
470uF
* 470uF, Low ESR Electrolytic
DS9701-16 April 2011
www.richtek.com
1
1 page  
RT9701
Short Circuit Current vs. Temperature
1400
1300
VIN = 5V
1200
1100
1000
900
800
700
600
500
-40 -20
0 20 40 60 80 100 120
Temperature ( °CC) )
EENNPTihnreTshhroesldhvosld. TVeomltapgeeratvusr.e
2.4
VIN = 5V
2.0
1.6
Rising
1.2
Falling
0.8
0.4
0.0
-40 -20
0 20 40 60 80 100 120
Temperature (°C) *Test Circuit 3
Turn On Rising Time vs. Temperature
720
VIN = 5V
630
540
450
360
270
180
90
0
-40 -20
RL =30Ω
CL = 1uF Ceramic
0 20 40 60 80 100 120
Temperature (°C)
*Test Circuit 3
DS9701-16 April 2011
Short Circuit Current vs. Input Voltage
1950
TA = 25°C
1700
1450
1200
950
700
450
200
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage (V)
EN EPNinTThhreresshhooldldvsV.oIlntapguet Vvosl.taIngpeut
2.4
TA = 25°C
2.0
1.6 Rising
1.2 Falling
0.8
0.4
0.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage (V)
*Test Circuit 3
Turn Off Falling Time vs. Temperature
140
VIN = 5V
120
100
80
60
40
20 RL = 30Ω
CL = 1uF Ceramic
0
-40 -20 0 20 40 60 80 100 120
Temperature (°C) *Test Circuit 3
www.richtek.com
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet RT9701.PDF ] | |
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