Analog Integrated Circuit Device Data
14
Freescale Semiconductor
13892
ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Because of an order from the United States International Trade Commission, BGA-packaged product lines and part numbers indicated here currently are not
available from Freescale for import or sale in the United States prior to September 2010: MC13892VK and MC13892VL in 139, 186 MAPBGA packages.
BUCK CONVERTERS
Operating Input Voltage
PWM operation, 0 < IL < IMAX
PFM operation, 0 < IL < IMAX
Extended PWM or PFM operation
(7)VSWIN
3.0
2.8
UVDET
-
4.65
V
Output Voltage Range
Switcher 1
Switchers 2, 3, and 4
VSW1
0.6
-
1.375
1.850
V
Output Accuracy
PWM mode including ripple, load regulation, and transients
(8)PFM Mode, including ripple, load regulation, and transients
VSWLOPP
VSWLIPPI
Nom-50
Nom
Nom+50
mV
SW1-SW2 Output Delta Voltage
SW1 and SW2 both programmed for 1.250 V, PWM mode, IL = 0.5*ILMAX
ΔVSW
-
25
mV
Maximum Continuous Load Current, IMAX, VINMIN<BP<4.65 V(11) SW1 in PWM mode
with SWILIMB=0
SW2 in PWM mode
SW3 in PWM mode
SW4 in PWM mode
SW1, SW2, SW3, SW4 in PFM mode
ISW1
ISW2
ISW3
ISW4
ISW1, 2, 3, 4
900
1050
800
-
50
-
mA
Current Limiter Peak Current Detection, VIN = 3.6 V, Current through inductor(9) SW1
SW2-4
ISWPK
920
850
-
1700
mA
Start-up Overshoot, IL = 0
-
25
mV
Effective Quiescent Current Consumption
(11)PWM Mode, IL=0 mA; device not switching
PFM Mode, IL=0 mA; device not switching
ISWQS
-
50
15
100
30
A
Automatic Mode Change Threshold, Switchover between PFM and PWM modes
AMCTH
-
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
-
%
Notes
7.
In the extended operating range the performance may be degraded
8.
Transient loading for load steps of ILmax/2
9.
No current limiter interaction for SW1 up to 920 mA and for SW2-4 up to 850 mA .
10.
In this mode, current limit protection is disabled. Therefore, the load on SW1 should not exceed 1.05 A
11.
Guaranteed by design.
Table 5. Static Electrical Characteristics (Continued)
Currents valid over entire operating temperature range, except at 25°C only. Current in RTC Mode is from LICELL = 2.5 V, in
all other modes from BP = 3.6 V. External loads are not included.
Characteristic
Symbol
Min
Typ
Max
Unit