RT9278 데이터 시트보기 (PDF) - Richtek Technology
부품명
상세내역
일치하는 목록
RT9278 Datasheet PDF : 13 Pages
| |||
RT9278
Preliminary
Output Voltage vs. Output Current
3.310
3.305
3.300
3.295
3.290
3.285
3.280
3.275
3.270
3.265
3.260
3.255 VOUT = 3.3V
3.250
1
10
VIN = 3.0V
VIN = 2.5V
VIN = 2.0V
VIN = 1.5V
100
1000
Output Current (mA)
Power LED Efficiency vs. Input Voltage
100
90
80
70
60
50
40
30
20
10
Vf = 3.5V, ILED = 200mA, L = 4.7µH
0
3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4 4.1 4.2 4.3
Input Voltage (V)
Normal Operation
VOUT
(10mV/Div)
(5V/Div)
VLX
(1V/Div)
VIN
(1A/Div)
II N
VIN = 1.5V, VOUT = 5V, ILOAD = 300mA
Time (1µs/Div)
Output Voltage vs. Output Current
4.98
4.97
4.96
4.95
4.94
4.93
4.92
4.91
4.90
4.89
4.88
4.87
4.86
4.85
VOUT = 5.0V
VIN = 4.2V
VIN = 4.0V
VIN = 3.5V
VIN = 3.0V
VIN = 2.5V
VIN = 2.0V
VIN = 1.5V
1
10
100
1000
Output Current (mA)
Normal Operation
VOUT
(10mV/Div)
(5V/Div)
VLX
(1V/Div)
VIN
(500mA/Div)
II N
VIN = 1.5V, VOUT = 5V, ILOAD = 100mA
Time (1µs/Div)
Normal Operation
VOUT
(10mV/Div)
VIN
(1V/Div)
VLX
(5V/Div)
II N (500mA/Div)
VIN = 4.2V, VOUT = 5V, ILOAD = 100mA
Time (1µs/Div)
www.richtek.com
10
DS9278-04 August 2007
Share Link: 