ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 4. Static Electrical Characteristics (continued)
Characteristics noted under conditions 2.7 V ≤ VIN ≤ 5.5 V, -20°C ≤ TA ≤ 85°C, GND = 0 V, unless otherwise noted. Typical
values noted reflect the approximate parameter means at TA = 25°C under nominal conditions, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
REGULATOR 8
Output Voltage Range
Output Accuracy
VOUT
-
5.0(19)
15
15
V
%
-4.0
-
4.0
Feedback Reference Voltage
V
-
0.600(20)
0.230(21)
-
-
V
FB
Feedback Reference Voltage on current regulation mode
Dynamic Voltage Scaling Range
V
-
V
FB
VDYN
VDYN_STEP
REGLN/LD
IOUT
-10
-
2.5
-
10
-
%
Dynamic Voltage Scaling Step Size
Line/Load Regulation(18)
Continuous Output Current(18)
-
%
-1.0
1.0
30
-
%
-
15
1.0
1.5
-
mA
A
Over-current Limit (Detected in low side FET)
Short-circuit Current Limit (Detected in the Blocking FET)
Over-current Limit Accuracy
ILIM_ION
ISHORT_ION
-
-
-
-
A
-20
20
-
%
N-CH Switch Power MOSFET RDS(ON)
N-CH Synch. Power MOSFET RDS(ON)
N-CH Shutdown Power MOSFET RDS(ON)
Discharge MOSFET RDS(ON)
Thermal Shutdown Threshold(18)
Thermal Shutdown Hysteresis(18)
RDS(ON) SW
RDS(ON) SY
RDS(ON) SH
RDS(ON) DIS
-
-
-
-
-
-
-
-
450
1000
450
70
170
25
-
mΩ
mΩ
mΩ
Ω
-
-
-
-
-
-
TSD
-
°C
°C
μA
TSD-HYS
ISW8_LKG
-
SW8 Leakage Current (Off State) @25°C
1.0
Notes
18. Guaranteed by Design
19. When Battery voltage is higher than 5.0V and VOUT8 is 5.0V, a polarization diode is necessary to achieve accurate output voltage. See
Component Calculation on page 39 for further details.
20.
V
is 0.6V when the part ist powered up and no DVS is changed. DVS is achieved by modifying V reference.
FB FB
21. When in Current regulation mode, the Voltage reference is set to 0.230mV to set the maximum current, and it is internally decreased to
achieve a factor of the maximum current passing through the LED string
34704
Analog Integrated Circuit Device Data
Freescale Semiconductor
13
FREESCALE [ Freescale ]
