RT9278 Просмотр технического описания (PDF) - Richtek Technology
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RT9278 Datasheet PDF : 13 Pages
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Preliminary
RT9278
Normal Operation
VOUT
VIN
(10mV/Div)
(1V/Div)
VLX
(5V/Div)
II N
(500mA/Div)
VIN = 4.2V, VOUT = 5V, ILOAD = 300mA
Time (1µs/Div)
Load Transient Regulation
VIN = 4.2V, VOUT = 5V, ILOAD = 100mA to 400mA
400
200
0
100
0
-100
Time (1ms/Div)
Flash LED
VIN = 3.77V, Power LED = 200mA to 700mA
VIN
GPIO
ILED
II N
(2V/Div)
(100mV/Div)
(500mA
/Div)
(500mA/Div)
Mode Transition
Time (10ms/Div)
DS9278-04 August 2007
Load Transient Regulation
VIN = 1.5V, VOUT = 5V, ILOAD = 100mA to 300mA
400
200
0
50
0
-50
Time (1ms/Div)
Flash LED
VIN = 3.0V, Power LED = 200mA to 700mA
VIN
(100mV/Div)
(2V/Div)
GPIO
ILED
(500mA
/Div)
II N (500mA/Div)
Time (10ms/Div)
Flash LED
VIN = 4.3V, Power LED = 200mA to 700mA
VIN
(100mV/Div)
GPIO
(2V/Div)
(500mA/Div)
ILED
II N (500mA/Div)
Time (10ms/Div)
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