34701_07 Datasheet, PDF (14/38 Pages) Freescale Semiconductor, Inc – 1.5 A Switch-Mode Power Supply with Linear Regulator

ELECTRICAL CHARACTERISTICS
TIMING DIAGRAM
TIMING DIAGRAM
t_HD-STA
t_HD-STA
t_HD-DAT
t_SU-DAT
t_SU-STA
Figure 4. Definition of Time on the I²C Bus
ELECTRICAL PERFORMANCE CURVES
t_SU-STO
300
300
295
295
290
290
285
285
280
280 _-50
0
50
100
-50
T⁰emperature (°⁵C⁰)
100
TeTmepmepraetruarteur(eC°(°)C)
Figure 5. f_OSC vs. Temperature
450
400
350
300
250
200
150
100
7
12
17
22
RRff(k(kΩO)hm )
Figure 6. f_OSC vs. Rf
34701
14
100
90
80
70
60
50
40
30
20
10
0
0
Vin=3.3V, Vout=1.2V
Vin=3.3V, Vout=1.8V
Vin=5.0V, Vout=1.2V
Vin=5.0V, Vout=1.8V
0,5
1
1,5
Load Current [A]
Figure 7. Switcher Efficiency vs. Load Current
3.00
2.80
2.60
2.40
2.20
2.00
-50
0
50
100
Temperature (°C)
Figure 8. Switcher I_Lim vs. Temperature
Analog Integrated Circuit Device Data
Freescale Semiconductor