R1218N021A Datasheet, PDF (4/21 Pages) RICOH electronics devices division – Step-up DC/DC converter for White LED Backlight

R1218x
PIN CONFIGURATIONS
• SOT-23-6
6
5
4
(mark side)
Top View
654
• PLP1820-6
Bottom View
456
1
2
3
123
321
PIN DESCRIPTIONS
• SOT-23-6
• PLP1820-6
Pin No.
Symbol
Description
Pin No. Symbol
Description
1
CE
Chip Enable Pin
1
CE
Chip Enable Pin
2
VOUT
Output Pin
2
VFB
Feedback Pin
3
VIN
Power Supply Input Pin
3
Lx
Switching Pin
(Open Drain Output)
4
Lx
Switching Pin
(Open Drain Output)
4
GND
Ground Pin
5
GND
Ground Pin
5
VIN
Power Supply Input Pin
6
VFB
Feedback Pin
6
VOUT
Output Pin
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
∗ Tab in the parts have GND level.
(They are connected to the back side of this IC.)
Do not connect to other wires or land patterns.
Rating
(GND=0V)
Unit
VIN
VCE
VFB
VOUT
VLX
ILX
PD
VIN Pin Voltage
CE Pin Voltage
VFB Pin Voltage
VOUT Pin Voltage
R1218xxx1A
R1218xxx2A
LX Pin Voltage
R1218xxx1A
R1218xxx2A
LX Pin Current
Power Dissipation (SOT-23-6) *^Note1
Power Dissipation (PLP1820-6) *^Note1
6.5
V
−0.3 to VIN+0.3
V
−0.3 to VIN+0.3
V
−0.3 to 22
V
−0.3 to 32
−0.3 to 22
V
−0.3 to 32
800
mA
420
mW
880
Topt
Tstg
Operating Temperature Range
Storage Temperature Range
−40 to 85
°C
−55 to 125
°C
*Note1) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
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