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参数资料
| 型号： | LTC3803IS6-5 |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, 230 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封装： | 1 MM HEIGHT, PLASTIC, MO-193, TSOT-23, 6 PIN |
| 文件页数： | 10/16页 |
| 文件大小： | 162K |
| 代理商： | LTC3803IS6-5 |
LTC3803-5
3
38035fd
ELECTRICAL CHARACTERISTICS The l denotes the specications which apply over the full operating
junction temperature range, otherwise specications are at TA = 25°C. VCC = 5V, unless otherwise noted. (Notes 2, 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCLAMP25mA
VCC Shunt Regulator Voltage at 25mA
ICC = 25mA, VITH/RUN = 0V
LTC3803E-5
LTC3803I-5, LTC3803H-5
LTC3803MP-5
l
6.3
6
8.1
10.3
10.7
V
ICC
Input DC Supply Current in
Normal Operation
(Note 4)
VITH/RUN = 1.3V
240
350
μA
ICC,(UV)
Input DC Supply Current in
Undervoltage
VCC = VTURNON – 100mV
LTC3803E-5
LTC3803I-5, LTC3803H-5, LTC3803MP-5
l
40
90
100
μA
VITHSHDN
Shutdown Threshold (at ITH/RUN)
VCC > VTURNON, VITH/RUN Falling
LTC3803E-5
LTC3803I-5, LTC3803H-5
LTC3803MP-5
l
0.12
0.08
0.28
0.45
0.47
V
IITHSTART
Start-Up Current Source
VITH/RUN = 0V
LTC3803E-5
LTC3803I-5, LTC3803H-5, LTC3803MP-5
l
0.07
0.34
0.8
1
μA
VFB
Regulated Feedback Voltage
(Note 5)
LTC3803E-5:
0°C ≤ TJ ≤ 85°C
–40°C ≤ TJ ≤ 85°C
LTC3803I-5:
0°C ≤ TJ ≤ 85°C
–40°C ≤ TJ ≤ 125°C
LTC3803H-5:
0°C ≤ TJ ≤ 85°C
–40°C ≤ TJ ≤ 150°C
LTC3803MP-5:
0°C ≤ TJ ≤ 85°C
–55°C ≤ TJ ≤ 150°C
l
0.788
0.780
0.788
0.780
0.788
0.780
0.788
0.780
0.800
0.812
0.816
0.812
0.820
0.812
0.820
0.812
0.820
V
gm
Error Amplier Transconductance
ITH/RUN Pin Load = ±5μA (Note 5)
200
333
500
μA/V
ΔVO(LINE)
Output Voltage Line Regulation
(Note 5)
0.1
mV/V
ΔVO(LOAD)
Output Voltage Load Regulation
ITH/RUN Sinking 5μA (Note 5)
ITH/RUN Sourcing 5μA (Note 5)
3
mV/μA
IFB
VFB Input Current
(Note 5)
10
50
nA
fOSC
Oscillator Frequency
VITH/RUN = 1.3V
170
200
230
kHz
DCON(MIN)
Minimum Switch On Duty Cycle
VITH/RUN = 1.3V, VFB = 0.8V
6.5
8.5
%
DCON(MAX)
Maximum Switch On Duty Cycle
VITH/RUN = 1.3V, VFB = 0.8V
70
80
90
%
tRISE
Gate Drive Rise Time
CLOAD = 3000pF
40
ns
tFALL
Gate Drive Fall Time
CLOAD = 3000pF (Note 7)
40
ns
VIMAX
Peak Current Sense Voltage
RSL = 0 (Note 6)
LTC3803E-5
LTC3803I-5, LTC3803H-5
LTC3803MP-5
l
90
85
100
115
120
mV
ISLMAX
Peak Slope Compensation Output
Current
(Note 7)
5
μA
tSFST
Soft-Start Time
0.7
ms
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