SI9169_07 Datasheet, PDF (4/10 Pages) Vishay Siliconix – High Frequency 1-A Synchronous Buck/Boost Converter

Si9169
Vishay Siliconix
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
1.310
1.32
1.305
1.31
1.300
1.30
1.295
1.29
1.290
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
V_DD - (V)
V_REF vs. V_DD
2.00
1.95
1.90
R_OSC = 25 kΩ
1.85
1.80
1.75
1.70
- 100
- 50
0
50
100
150
Temperature (° C)
Frequency vs. Temperature
100
95
PSM- 3 V
90 _{PSM- 3.6 V}
85 _{PSM- 4.2 V}
80
75
70
PWM- 3 V
PWM- 3.6 V
PWM- 4.2 V
65
60
1
10
100
1000
Load Current (mA)
Buck Mode Efficiency, V_O = 2.7 V
www.vishay.com
4
1.28
- 50
10000
0
50
100
150
Temperature (° C)
V_REF vs. Temperature
1000
100
10
100
R_OSC (kΩ)
Frequency vs. R_OSC
1000
95
PWM- 3.3 V
90
PSM- 3.3 V
85
80
PSM- 2.7 V
PWM- 2.7 V
75
70
65
60
1
10
100
1000
Load Current (mA)
Boost Mode Efficiency, V_O = 3.6 V
Document Number: 70945
S-72058-Rev. E, 08-Oct-07