XC9235 TOREX SEMICONDUCTOR LTD., XC9235 Datasheet - Page 18

• Manufacturer Part Number: XC9235
• Description: Xc9235 600ma Synchronous Step-down Dc/dc Converters
• Manufacturer: TOREX SEMICONDUCTOR LTD.

(1) Efficiency vs. Output Current
(2) Output Voltage vs. Output Current
(3) Ripple Voltage vs. Output Current
18/28
■TYPICAL PERFORMANCE CHARACTERISTICS
XC9235/XC9236/XC9237
100
2.1
2.0
1.9
1.8
1.7
1.6
1.5
100
90
80
70
60
50
40
30
20
10
80
60
40
20
0
0
0.1
0.1
0.1
PWM/PFM Automatic Sw itching Control
2.4V
L=4.7μH (NR4018), CIN=4.7μF, CL=10μF
L=4.7μH (NR4018), CIN=4.7μF, CL=10μF
L=4.7μH (NR4018), CIN=4.7μF, CL=10μF
PWM Control
VIN ＝ 4.2V,3.6V,2.4V
3.6V
VIN= 4.2V
PWM/PFM Automatic Sw itching Control
1
1
1
Output Current: IOUT (mA)
Output Current: IOUT (mA)
Output Current:IOUT(mA)
Output Current: IOUT (mA)
Output Current:IOUT(mA)
Output Current:IOUT(mA)
XC9237A18C
XC9237A18C
XC9237A18C
PWM Control
10
10
10
VIN ＝ 4.2V,3.6V,2.4V
PWM/PFM Automatic
Sw itching Control
VIN ＝ 4.2V
2.4V
3.6V
3.6V
PWM Control
VIN= 4.2V
100
100
100
2.4V
1000
1000
1000
Series
2.1
2.0
1.9
1.8
1.7
1.6
1.5
100
100
80
60
40
20
90
80
70
60
50
40
30
20
10
0
0
0.1
0.1
0.1
PWM/PFM Automatic Sw itching Control
L=1.5μH (NR3015), CIN=4.7μF, CL=10μF
L=1.5μH (NR3015), CIN=4.7μF, CL=10μF
2.4V
L=1.5μH (NR3015), CIN=4.7μF, CL=10μF
PWM Control
VIN ＝ 4.2V,3.6V,2.4V
PWM/PFM Automatic Sw itching Control
3.6V
VIN= 4.2V
1
1
1
Output Current: IOUT (mA)
Output Current: IOUT (mA)
Output Current: IOUT (mA)
Output Current:IOUT(mA)
Output Current:IOUT(mA)
Output Current:IOUT(mA)
PWM Control
XC9237A18D
XC9237A18D
XC9237A18D
10
10
10
VIN ＝ 4.2V,3.6V,2.4V
PWM/PFM Automatic
Sw itching Control
VIN ＝ 4.2V
2.4V
3.6V
3.6V
PWM Control
VIN= 4.2V
2.4V
100
100
100
1000
1000
1000