Datasheet

ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Analog Integrated Circuit Device Data
16 Freescale Semiconductor
MC13892
BUCK REGULATORS (CONTINUED)
Automatic Mode Change Threshold, Switchover between PFM and PWM
modes
AMC
TH
– 50 –
mA
Efficiency
PFM, 0.9 V, 1.0 mA
PFM, 01.8 V, 1.0 mA
PWM Pulse Skipping, 1.25 V, 50 mA
PWM Pulse Skipping, 1.8 V, 50 mA
PWM, 1.25 V, 500 mA
PWM, 1.8 V, 500 mA
–
–
–
–
–
–
75
85
78
82
78
82
–
–
–
–
–
–
η
External Components, Used as a condition for all other parameters
Inductor for SW2, SW3, SW4
(28)
Inductor for SW1
(28)
Inductor Resistance
Bypass Capacitor for SW2, SW3, SW4
(29)
Bypass Capacitor for SW1
(30)
Bypass Capacitor ESR
Input Capacitor
(31)
L
SW234
L
SW1
R
WSW
C
OSW234
C
OSW1
ESR
SW
-20%
-30%
–
-35%
-35%
5.0
1.0
2.2
1.5
–
10
2x22
–
4.7
+20%
+30%
0.16
+35%
+35%
50
–
µH
µH
Ω
µF
µF
mΩ
µF
SWBST
Average Output Voltage
(32)
3.0 V < V
IN
< 4.65 (1), 0 < IL < IL
MAX
(33)
V
BST
Nom-5% 5.0 Nom+5%
V
Output Ripple
3.0 V < V
IN
< 4.65, 0 < IL < IL
MAX
, Excluding reverse recovery of
Schottky diode
V
BSTPP
– – 120
mVpp
Average Load Regulation
V
IN
= 3.6 V, 0 < IL < IL
MAX
V
BSTLOR
– – 0.5
mV/mA
Average Line Regulation
3.0 V < V
IN
< 4.65 V, IL = IL
MAX
V
BSTLIR
– – 50
mV
Notes
28. Preferred device TDK VLS252012 series at 2.5x2.0 mm footprint and 1.2 mm max height
29. Preferably 0603 style 6.3 V rated X5R/X7R type at 35% total make tolerance, temperature spread and DC bias derating such as TDK
C1608X5R0J106M
30. Preferably 0805 style 6.3 V rated X5R/X7R type at 35% total make tolerance, temperature spread and DC bias derating such as TDK
C2012X5R0J226M
31. Preferably 0603 style 6.3 V rated X5R/X7R type at 35% total make tolerance, temperature spread and DC bias derating such as TDK
C1608X5R0J475
32. Output voltage when configured to supply VBUS in OTG mode can be as high as 5.75 V
33. Vin is the low side of the inductor that is connected to BP.
Table 5. Static Electrical Characteristics (continued)
Characteristics noted under conditions - 40 °C ≤ T
A
≤ 85 °C, GND = 0 V unless otherwise noted. Typical values noted reflect
the approximate parameter means at T
A =
25 °C under nominal conditions, unless otherwise noted.
Characteristic Symbol Min Typ Max Unit