R1223N152A RICOH [RICOH electronics devices division], R1223N152A Datasheet - Page 4

• Manufacturer Part Number: R1223N152A
• Description: PWM/VFM Step-down DC/DC Converter
• Manufacturer: RICOH [RICOH electronics devices division]

Symbol
VFMdty
DV
Maxdty
n n n n ELECTRICAL CHARACTERISTICS
Rev. 1.11
Df
V
I
V
I
V
T
lR1223N**2A(,C,E,G) Output Voltage : Vo
T
I
I
fosc
EXTH
I
EXTL
V
CEH
DD1
I
CEL
DT
DT
OSC
OUT
CEH
start
CEL
OUT
stb
prot
IN
/
/
12345
Operating Input Voltage
Step-down Output Voltage
Step-down Output Voltage
Temperature Coefficient
Oscillator Frequency
Oscillator Frequency
Temperature Coefficient
Supply Current1
Standby Current
EXT "H" Output Current
EXT "L" Output Current
CE "H" Input Current
CE "L" Input Current
CE "H" Input Voltage
CE "L" Input Voltage
Oscillator Maximum Duty Cycle
VFM Duty Cycle
Delay Time by Soft-Start function
Delay Time for protection circuit
Item
V
V
V
only for A, E version
V
V
V
V
V
V
V
V
specified at 80% for rising edge
V
V
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
-40°C £ Topt £ 85°C
-40°C £ Topt £ 85°C
=V
=V
=13.2V,V
=13.2V,V
=8V,V
=8V,V
=13.2V,V
=13.2V,V
=8V,V
=8V,V
= Vo+1.2V, V
=V
= Vo+1.2V®0V
CE
CE
CE
=Vo+1.2V,I
=Vo+1.2V,I
=Vo+1.2V
- 4 -
EXT
EXT
OUT
OUT
CE
CE
CE
CE
=7.9V,V
=0.1V,V
=0V®1.5V
=1.5V®0V
Conditions
=13.2V,V
=0V,V
=13.2V,V
=0V,V
CE
=0V®Vo+1.2V
OUT
OUT
OUT
OUT
OUT
OUT
=-10mA
=-100mA
OUT
OUT
=8V,V
=0V,V
=0V
=13.2V
=13.2V
=13.2V
CE
CE
=8V
=8V
MIN.
0.98
Vo´
240
-0.5
100
2.3
0.3
10
5
1
TYP.
±100
±0.3
300
100
-10
0.8
0.8
Vo
20
25
10
0
0
0
3
(Topt=25°C)
MAX. Unit
13.2
1.02
Vo´
360
160
0.5
0.5
1.2
16
-6
5
ppm
kHz
mA
mA
/°C
/°C
ms
ms
mA
mA
mA
mA
%
%
%
V
V
V
V