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参数资料
| 型号： | LSP3103C12D |
| 厂商： | LITE-ON SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.8 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封装： | SOT-23, 5 PIN |
| 文件页数： | 3/6页 |
| 文件大小： | 334K |
| 代理商： | LSP3103C12D |
Liteon Semiconductor Corporation
LSP3103
500mA Synchronous Step-Down Converter
Rev1.2
3/9
(VIN=VRUN=3.6V, TA=25℃, Unless otherwise noted)
Parameter
Condition
Min.
Typ.
Max.
Unit
Input Voltage Range
2.5
6.5
V
Input DC Supply Current
Active Mode
Shutdown Mode
VFB=0.5V
VFB=0V, VIN=4.2V
300
0.1
500
1.0
A
TA=+25℃
0.5880
0.6000
0.6120
V
TA=0℃≤TA≤85℃
0.5865
0.6000
0.6135
V
Regulated Feedback Voltage
TA=-40℃≤TA≤85℃
0.5820
0.6000
0.6180
V
VFB Input Bias Current
VFB=0.65V
±30
nA
Reference Voltage Line Regulation
VIN=2.5V to 5.5V, VOUT=VFB (R2=0)
0.04
0.40
%/V
LSP3103C12AD: -40℃≤TA≤85℃
1.164
1.200
1.236
V
Regulated Output Voltage
LSP3103C18AD: -40℃≤TA≤85℃
1.746
1.800
1.854
V
Output Voltage Line Regulation
VIN=2.5V to 5.5V, IOUT=10mA
0.04
0.40
%/V
Output Voltage Load Regulation
IOUT from 0 to 500mA
0.5
%
Maximum Output Current
VIN=3.0V
500
mA
Oscillator Frequency
VFB=0.6V or VOUT=100%
1.2
1.5
1.8
MHz
RDS(ON) of P-CH MOSFET
ISW=300mA
0.50
0.60
RDS(ON) of N-CH MOSFET
ISW=-300mA
0.45
0.55
Peak Inductor Current
VIN=3V, VFB=0.5V or VOUT=90%,
Duty Cycle＜35%
0.55
0.60
0.80
A
SW Leakage
VRUN=0V, VSW=0V or 5V, VIN=5V
±0.01
±1
A
RUN Threshold
-40℃≤TA≤85℃
0.55
1.30
V
RUN Leakage Current
±0.01
±1
A
Note 4: 100% production test at +25℃. Specifications over the temperature range are guaranteed by design and
characterization.
TYPICAL PERFORMANCE CHARACTERISTICS
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