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LR8501 Datasheet(PDF) 3 Page - Leshan Radio Company

Part No. LR8501
Description  1.5MHz 600mA Synchronous Step-Down Converter with Low Quiescent Current
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Maker  LRC [Leshan Radio Company]
Homepage  http://www.lrc.cn/
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LR8501 Datasheet(HTML) 3 Page - Leshan Radio Company

 
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ELECTRICAL CHARACTERISTICS
LR8501 Series
(VIN=CE=3.6V, Ta=25℃, Test Circuit Figure1, unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Output Voltage
VOUT(F)
(1)
IOUT =100mA
VOUT×0.97
VOUT
VOUT×1.03
V
Feedback Voltage
VFB
TA=25℃
0.5880
0.600
0.6120
V
0℃≤TA≤85℃
0.5865
0.600
0.6135
-40℃≤TA≤85℃
0.5850
0.600
0.6150
Input Voltage
VIN
1.8
5.5
V
Supply Current1
Active MODE)
ISS1
VFB=0.50V
270
400
μA
Supply Current2
Power Saving Mode)
ISS2
VFB=0.63V
40
50
μA
Shutdown Current
ISHDN
VCE=VSS
0.1
1.0
μA
Feedback Current
IFB
VFB=0.65V
±30
nA
Maximum Output Current
IOUT
600
mA
VFB Line Regulation
∆VFB
VIN= 1.8V~5.5V
0.40
%/V
Output Voltage Line
Regulation
∆VOUT
VIN= 1.8V~5.5V
IOUT=10mA
0.40
%/V
Output Voltage
Load Regulation
∆VLOAD
IOUT =1mA
~600mA
0.02
%/mA
Oscillator Frequency
fosc
VFB=0.6V or
VOUT=100%
1.2
1.5
1.8
MHz
Peak Inductor Current
IPK
VIN=3V,VFB=0.5V
or VOUT=90%
1.0
A
RDS(ON) OF P-CH FET
RPFET
ISW = 100mA
0.45
0.60
RDS(ON) OF N-CH FET
RNFET
ISW = -100mA
0.35
0.50
SW Leakage
ILSW
CE=0,VSW=0
or 5V, VIN=5V
±0.01
±1
μA
CE "High" Voltage(2)
VCE“H”
1.5
VIN
V
CE "Low" Voltage(3)
VCE“L”
0.3
V
CE Leakage Current
ICE
±0.1
±1
μA
NOTE :
1. VOUT(F):The fixed voltage version effective output voltage.
2. High Voltage:Forcing CE above 1.5V enables the part.
3. Low Voltage:Forcing CE below 0.3V shuts down the device.
LESHAN RADIO COMPANY, LTD.
3/11


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