2ch. Step-down DC/DC Controller ICs
XC9503 Series
(2) Efficiency vs. Output Current (continued)
FOSC=300kHz, VOUT1, 2=3.3V
FOSC=300kHz, VOUT1, 2=5.0V
L=22µH(CDRH5D28), CL=94µF(Tantalum)
L=22µH(CDRH5D28), CL=94µF(Tantalum)
SD:CMS02, Tr:XP162A12A6P
SD:CMS02, Tr:XP162A12A6P
100
100
PWM/PFM Switching Control
PWM/PFM Switching Control
PWM Control
PWM Control
80
80
10.0V
60
60
10.0V
8.0V
40
40
8.0V
6.0V
5.0V
20
0
20
0
VIN=6.0V
VIN=4.2V
10
0.1
1
100
1000
0.1
1
10
100
1000
Output Current1, 2 IOUT1, 2 (mA)
Output Current1, 2 IOUT1, 2 (mA)
FOSC=180kHz, VOUT1, 2=1.0V
FOSC=180kHz, VOUT1, 2=1.0V
L=47µH(CDRH6D28), CL=94µF(Tantalum)
L=47µH(CDRH6D28), CL=94µF(Tantalum)
SD:CMS02, Tr:XP162A12A6P
SD:CMS02, Tr:XP162A12A6P
100
80
60
40
20
0
100
80
60
40
20
0
PWM/PFM Switching Control
PWM Control
VIN=5.0V
8.0V
6.0V
10V
4.2V
3.3V
VIN=2.7V
PWM/PFM Switching Control
PWM Control
0.1
1
10
100
1000
0.1
1
10
100
1000
Output Current1, 2 IOUT1, 2 (mA)
Output Current1, 2 IOUT1, 2 (mA)
FOSC=180kHz, VOUT1, 2=3.3V
FOSC=180kHz, VOUT1, 2=5.0V
L=47µH(CDRH6D28), CL=94µF(Tantalum)
L=47µH(CDRH6D28), CL=94µF(Tantalum)
SD:CMS02, Tr:XP162A12A6P
SD:CMS02, Tr:XP162A12A6P
100
80
60
40
20
0
100
80
60
40
20
0
5.0V
VIN=4.2V
10V
10V
8.0V
8.0V
VIN=6.0V
6.0V
PWM/PFM Switching Control
PWM Control
PWM/PFM Switching Control
PWM Control
0.1
1
10
100
1000
0.1
1
10
100
1000
Output Current1, 2 IOUT1, 2 (mA)
Output Current1, 2 IOUT1, 2 (mA)
* When setting VOUT1, 2 =1.0V, VIN=8.0V, 10.0V,
CL should be 94µF (Tantalum) + 100µF (OS-COM)
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