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参数资料
| 型号： | R1218K072A-TR |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封装： | 1.80 X 2 MM, HALOGEN FREE AND ROHS COMPLIANT, DFN-6 |
| 文件页数： | 16/19页 |
| 文件大小： | 276K |
| 代理商： | R1218K072A-TR |
R1218x
6
ELECTRICAL CHARACTERISTICS
R1218xxxxA
Topt
=25°C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit
VIN
Input Voltage
1.8
5.5
V
IDD
Supply Current
VIN
=5.5V, VFB=0V, Lx at no load
0.5
1.0
mA
Istandby
Standby Current
VIN
=5.5V, VCE=0V
0
3.0
μA
VUVLO1
UVLO Detector Threshold
VIN falling
1.5
1.6
1.7
V
VUVLO2
UVLO Released Voltage
VIN rising
VUVLO1
+0.1
1.8
V
VCEH
CE Input Voltage "H"
VIN
=5.5V
1.5
V
VCEL
CE Input Voltage "L"
VIN
=1.8V
0.5
V
RCE
CE Pull Down Resistance
VIN
=3.6V
600
1200
2200
k
Ω
tshtdn
CE Shutdown Delay Time
VIN
=3.6V
10
ms
VFB
VFB Voltage
VIN
=3.6V
0.19
0.20
0.21
V
ΔVFB/
ΔTopt
VFB Voltage Temperature
Coefficient
VIN
=3.6V, 40°C ≤ Topt ≤ 85°C
±150
ppm
/°C
IFB
VFB Input Current
VIN
=5.5V, VFB=0V or 5.5V
0.1
μA
RON
Switch On Resistance
VIN
=3.6V, ISW=100mA
1.5
Ω
R1218xxx1A
VLX
=20V
0
3.0
μA
ILXleak
Switch Leakage Current
R1218xxx2A
VLX
=29V
0
3.0
μA
ILXlim
Switch Current Limit
VIN
=3.6V
400
700
1000
mA
Vf
Diode Forward Voltage
R1218xxx1A
IDIODE
=100mA
0.8
V
IDIODEleak
Diode Leakage Current
R1218xxx1A
VOUT
=20V, VLX=0V
10
μA
fosc
Oscillator Frequency
VIN
=3.6V, VOUT=VFB=0V
1.0
1.2
1.4
MHz
R1218x072A
86
92
Maxduty Maximum Duty Cycle
VIN
=3.6V,
VOUT
=VFB=0V
Others
86
91
%
R1218x021A
8.5
9.5
10.5
R1218x031A
13.0
14.0
15.0
R1218x041A
17.0
18.5
20.0
R1218x052A
21.5
23.0
24.5
R1218x062A
26.0
27.5
29.0
VOVP1
OVP Detector Threshold
VIN
=3.6V,
VOUT rising
R1218x072A
30.0
31.5
33.0
V
R1218x021A
VOVP1
0.5
R1218x031A
VOVP1
0.75
R1218x041A
VOVP1
1.0
R1218x052A
VOVP1
1.25
R1218x062A
VOVP1
1.5
VOVP2
OVP Released Voltage
VIN
=3.6V,
VOUT falling
R1218x072A
VOVP1
1.75
V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| R1218N021A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:Step-up DC/DC converter for White LED Backlight |
| R1218N022A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:Step-up DC/DC converter for White LED Backlight |
| R1218N031A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:Step-up DC/DC converter for White LED Backlight |
| R1218N032A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:Step-up DC/DC converter for White LED Backlight |
| R1218N041A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:Step-up DC/DC converter for White LED Backlight |
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