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參數(shù)資料
| 型號(hào)： | R1218K042A-TR |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, DSO6 |
| 封裝： | 1.80 X 2 MM, PLP-6 |
| 文件頁數(shù)： | 19/22頁 |
| 文件大?。?/td> | 669K |
| 代理商： | R1218K042A-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
A
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
tshtdn
CE Shutdown Delay Time
VIN
=3.6V
10
ms
VFB
VFB Voltage
VIN
=3.6V
0.19
0.20
0.21
V
VFB/
Topt
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
A
RON
Switch On Resistance
VIN
=3.6V, ISW=100mA
1.5
R1218xxx1A
VLX
=20V
0
3.0
A
ILXleak
Switch Leakage Current
R1218xxx2A
VLX
=29V
0
3.0
A
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
A
fosc
Oscillator Frequency
VIN
=3.6V, VOUT=VFB=0V
1.0
1.2
1.4
MHz
Maxduty
Maximum Duty Cycle
VIN
=3.6V, VOUT=VFB=0V
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
VOVP1
OVP Detector Threshold
VIN
=3.6V,
VOUT rising
R1218x062A
26.0
27.5
29.0
V
R1218x021A
VOVP1
0.5
R1218x031A
VOVP1
0.75
R1218x041A
VOVP1
1.0
R1218x052A
VOVP1
1.25
VOVP2
OVP Released Voltage
VIN
=3.6V,
VOUT falling
R1218x062A
VOVP1
1.5
V
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| R1218K052A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Step-up DC/DC converter for White LED Backlight |
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| R1218N031A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Step-up DC/DC converter for White LED Backlight |
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