Datasheet
Analog Integrated Circuit Device Data
Freescale Semiconductor 52
34709
Functional Block Description
SW3 BUCK REGULATOR (CONTINUED)
f
SW3
Switching Frequency
• PLLX = 0
• PLLX = 1
-
-
2.0
4.0
-
-
MHz
I
SW3Q
Quiescent Current Consumption
• APS Mode, IL=0 mA; device not switching
• PFM Mode, IL = 0 mA; device not switching
-
-
160
15
-
-
µA
SW3
Efficiency
•PFM, 1.2 V, 1.0 mA
•PWM, 1.2 V, 120 mA
•PWM, 1.2 V, 250 mA
•PWM, 1.2 V, 500 mA
-
-
-
-
71
79
82
81
-
-
-
-
%
(48)
Notes:
47. Transient loading for load steps of ILMAX/2 at 100 mA/s.
48. Efficiency numbers at V
SW3IN
=3.6 V, Excludes the quiescent current,
Table 40. SW3 Electrical Specification
Characteristics noted under conditions BP = V
SW3IN
= 3.6 V, - 40 C T
A
85 C, unless otherwise noted. Typical values at
BP = V
SW3IN
= 3.6 V and T
A
= 25 °C under nominal conditions, unless otherwise noted.
Symbol Characteristic Min Typ Max Unit Notes