RT9702 Просмотр технического описания (PDF) - Richtek Technology
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RT9702 Datasheet PDF : 16 Pages
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RT9702/A
Pin Configurations
(TOP VIEW)
VOUT
VIN
5
4
123
EN GND FLG
SOT-23-5/TSOT-23-5
Functional Pin Description
Pin Name Pin Function
VIN
Power Input Voltage
VOUT
Output Voltage
GND
Ground
EN
Chip Enable (Active High)
FLG
Open-Drain Fault Flag Output
Typical Application Circuit
Pull-Up Resistor (10K to 100K) (Optional)
Flag Transient Filtering) USB Controller
Supply Voltage 5V
1uF
VIN
FLG
RT9702/A
10K
0.1uF
Over -Current
Chip Enable
VOUT
EN
GND
10uF
150uF
VBUS
D+
D-
GND
Ferrite
Beades
Data
Note: A low-ESR 150μF aluminum electrolytic or tantalum between VOUT and GND is strongly recommended to meet the
330mV maximum droop requirement in the hub VBUS. (see Application Information Section for further details)
Function Block Diagram
EN
Bias
UVLO
Oscillator
Charge
Pump
Thermal
Protection
Current
Limiting
Gate
Control
Output Voltage
Detection
Delay
VIN
VOUT
FLG
GND
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2
DS9702/A-11 June 2007
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