ELM94xxB CMOS PFM step-up DC/DC converter
L=330μH, D=MA721, C=22μF, Vss=0V, Top=25°C
Condition Min. Typ. Max. Unit
Vout=3.3V (ELM9433B)
Parameter
Input voltage
Symbol
Vin
Vst RL=33kΩ
Vhold Iout=1mA
10
0.98
0.7
V
V
V
Starting voltage
Holding voltage
Current consumption
Output voltage
Output current of LX pin
Leakage current of LX pin
Oscillating frequency
Maximum duty ratio
Iss Iout=100μA, Vin=1.5V
Vout Iout=1mA, Vin=1.5V
Ilx Vout=3.2V, Vlx=0.4V
Ilxl Vout=Vlx=10V
Fosc Vout=3.2V
Duty Vout=3.2V, Switch"ON"
4.5
9.0
μA
V
mA
μA
kHz
%
3.21 3.30 3.39
100
1.0
55
65
22
45
35
55
L=330μH, D=MA721, C=22μF, Vss=0V, Top=25°C
Condition Min. Typ. Max. Unit
Vout=5.0V (ELM9450B)
Parameter
Input voltage
Starting voltage
Holding voltage
Symbol
Vin
Vst RL=50kΩ
10
0.98
0.9
V
V
Vhold Iout=1mA
V
Current consumption
Output voltage
Output current of LX pin
Leakage current of LX pin
Oscillating frequency
Maximum duty ratio
Iss Iout=100μA, Vin=3V
Vout Iout=1mA, Vin=3V
Ilx Vout=4.8V, Vlx=0.4V
Ilxl Vout=Vlx=10V
Fosc Vout=4.8V
Duty Vout=4.8V, Switch"ON"
7.0
14.0
μA
V
mA
μA
kHz
%
4.87 5.00 5.13
130
1.0
58
70
22
50
35
60
■Marking
a : the integer digit of the output voltage
SOT-89
Mark
2
3
Vout
2. V
3. V
*
Mark
4
5
Vout
4. V
*
*
Ꭸ
Ꭺ
Ꭹ
Ꭻ
5. V
*
b : the decimal digit of the output voltage
Mark
Vout
Mark
Vout
0
1
2
3
4
.0V
.1V
.2V
.3V
.4V
5
6
7
8
9
.5V
.6V
.7V
.8V
.9V
*
*
*
*
*
*
*
*
*
*
c : Assembly lot No.
0 to 9
d : Assembly lot No.
A to Z (excepted I, O, X)
6 - 3
ELM-TECH [ ELM Technology Corporation ]
