R1218XXX1A RICOH [RICOH electronics devices division], R1218XXX1A Datasheet - Page 4

• Manufacturer Part Number: R1218XXX1A
• Description: Step-up DC/DC converter for Whilte LED Backlight
• Manufacturer: RICOH [RICOH electronics devices division]

4
ABSOLUTE MAXIMUM RATINGS
(*Note 1) Mounted on board. Conditions: Board material: FR4 Board Dimensions: 40*40*1.6(mm), Double layer,
Wiring Ratio=50%(Both sides), Thermal via: 0.54mm*30pcs, Wind velocity: 0m/s
ELECTRICAL CHARACTERISTICS
R1218X
Symbol
V
V
Tshudn
PLP1820-6
Common
Symbol
V
V
UVLO1
UVLO2
I
R
V
V
STB
Topt
I
CEH
Tstg
CEL
V
V
V
V
IN
CE
I
P
IN
OUT
LX
CE
FB
LX
IN
Pin No
D
1
2
3
4
5
6
UVLO Detector Threshold
Operating Input Voltage
Supply Current
Standby Current
UVLO Released Voltage
CE “H” Input Voltage
CE “L” Input Voltage
CE Pull Down Resistance
CE Shutdown Delay
V
CE Pin Voltage
V
V
Lx Pin Voltage
Lx Pin Current
Power Dissipation
Operating Temperature Range
Storage Temperature Range
IN
FB
OUT
Pin Voltage
Pin Voltage
Pin Voltage
Item
Symbol
Item
V
GND
V
V
CE
Lx
OUT
FB
IN
V
V
V
V
V
V
V
V
IN
IN
IN
IN
IN
IN
IN
IN
=5.5V, V
Chip Enable Pin
Feedback Pin
Switching Pin (Open Drain Output)
Ground Pin
Power Supply Input Pin
Output Voltage
=5.5V, V
=5.5V
=1.8V
=3.6V
=3.6V
falling
rising
Conditions
FB
CE
R1218NXXXA suspended in air
=0V, Lx at no load
=0V
R1218XXX1A
R1218XXX2A
R1218XXX1A
R1218XXX2A
R1218KXXXA*Note1
-0.3 to V
-0.3 to V
-40 to +85
-55 to 125
Pin Description
Rating
1000
6.5
IN
IN
1.5
MIN.
600
1.8
1.5
+0.3
+0.3
V
-0.3 to 22.0
UVLO1
-0.3 to 32.0
-0.3 to 22.0
-0.3 to 32.0
TYP.
1200
0.5
0.0
1.6
10
+0.1
250
880
MAX.
1600
5.5
1.0
3.0
1.7
1.8
0.5
(Topt=25 C)
Unit
mW
mA
V
V
V
V
V
C
C
Unit
mA
k
ms
V
V
V
V
V
A