R1230D001C 查看數據表（PDF） - RICOH Co.,Ltd.
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R1230D001C Datasheet PDF : 20 Pages
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n ELECTRICAL CHARACTERISTICS
lR1230D**1A/B
Symbol
Item
Conditions
MIN.
VIN Operating Input Voltage
2.4
VOUT Step-down Output Voltage VIN=VCE=VSET+1.5V, VMODE=0V,
TYP. ×
IOUT=10mA
0.980
∆VOUT/ Step-down Output Voltage -40°C ≤ Topt ≤ 85°C
∆T Temperature Coefficient
fosc Oscillator Frequency(xx1A) VIN=VCE=VSET+1.5V
425
fosc Oscillator Frequency(xx1B) VIN=VCE=VSET+1.5V
680
IDD Supply Current(xx1A)
VIN=VCE=VSET+1.5V, VOUT=VMODE=0V
IDD Supply Current(xx1B)
VIN=VCE=VSET+1.5V, VOUT=VMODE=0V
Istb Standby Current
VIN=5.5V, VCE=VOUT=0V
RONP ON Resistance of
VIN=5.0V
0.20
Pch Transistor
RONN ON Resistance of
VIN=5.0V
0.20
Nch Transistor
ILXleak Lx Leakage Current
VIN=5.5V, VCE=0V, VLX=0V/5.5V
-0.1
IVOUT VOUT Leakage Current
VIN=5.5V, VCE=0V, VLX=0V/5.5V
-0.1
ICE CE Input Current
VIN=5.5V, VMODE=0V, VCE=5.5V/0V
-0.1
VCEH CE "H" Input Voltage
VIN=5.5V, VOUT=0V
1.5
VCEL CE "L" Input Voltage
VIN=2.4V, VOUT=0V
Maxdty Oscillator Maximum Duty Cycle VMODE=0V
100
VLX Lx Limit Voltage
VMODE= VOUT=0V, VIN=VCE=3.0V
VIN-0.15
Tstart Delay Time by Soft-Start function at no load, VIN=VCE=VSET+1.5V
0.5
Tprot Delay Time for protection circuit VIN=VCE=VSET+1.5V, VMODE=0V
0.5
VUVLO1 UVLO Threshold Voltage VIN=VCE=2.5V->1.5V, VOUT=0V
1.8
VUVLO2 UVLO Released Voltage
VIN=VCE=1.5V->2.5V, VOUT=0V
1.9
IMODE MODE Pin Input Current
VIN=5.5V, VCE=0V, VMODE=5.5V/0V
-0.1
VMODEH MODE ”H” Input Voltage
VIN=VCE=5.5V, VOUT=0V
1.5
VMODEL MODE ”L” Input Voltage
VIN=VCE=2.4V, VOUT=0V
VFMdty VFM Duty Cycle
VIN=VCE= VMODE=2.4V, VOUT=0V
55
(Topt=25°C)
TYP. MAX. Unit
5.5 V
VSET TYP. × V
1.020
±150
ppm
/°C
500 575 kHz
800 920 kHz
230 300 µA
250 350 µA
0
5 µA
0.35 0.60 Ω
0.45 0.70 Ω
0.0
0.0
0.0
VIN-
0.35
1.5
1.5
2.1
2.2
65
0.1 µA
0.1 µA
0.1 µA
V
0.3 V
%
VIN- V
0.55
2.5 ms
2.5 ms
2.2 V
2.3 V
0.1 µA
V
0.3 V
85 %
Rev. 1.17
- 5-
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