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34704_11 Datasheet, PDF (14/54 Pages) Freescale Semiconductor, Inc – Multiple Channel DC-DC Power Management IC
ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Table 5. Dynamic Electrical Characteristics
Characteristics noted under conditions 2.7V ≤ VIN ≤ 5.5V, -20°C ≤ TA ≤ 85°C, GND = 0V, 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
I2C COMMUNICATION
Device Physical Address (7 bit Address)
Maximum I2C Speed
-
$54
-
-
-
400
kHz
FREQ
Selectable Switching Frequency 1
Selectable Switching Frequency 2
Selectable Switching Frequency Step Size
Switching Frequency Accuracy
Retry Timeout Period(23)
CURRENT LIMIT MONITORING
Over-current Limit Timer(23)
Retry Timeout Period(23)
OUTPUT OVER-VOLTAGE/UNDER-VOLTAGE MONITORING
fSW1
750
fSW2
250
fSTEP
-
-10
tTIMEOUT
-
tLIMIT
-
tRETRY
-
-
2000
kHz
-
1000
kHz
250
-
kHz
-
10
%
10
-
ms
10
-
ms
10
-
ms
Under-voltage Threshold (Response A)
VUV-R
-
-20
-
%
Over-voltage Threshold (Response A)
VOV-R
-
20
-
%
Under-voltage Threshold (Response B)
VUV-R
-
-20
-
%
Over-voltage Threshold (Response B)
Filter Delay Timer(23)
VOV-R
-
20
-
%
tFILTER
-
20
-
μs
RST
RST Reset Delay(23)
tRST-DELAY
-
10
ms
REGULATOR 1 & VG
Operating Frequency(22), (23)
fSW1
750
-
1500
kHz
Operating Frequency Selection Step Size
Constant Time Off Value(23)
Low Side Timeout(23)
fSTEP
-
250
-
kHz
tOFF
-
1.0
-
μs
tTIMEOUT
-
15
-
μs
REGULATOR 2
Operating Frequency(23)
fSW1
750
-
2000
kHz
Operating Frequency Selection Step Size
fSTEP
-
250
-
kHz
Notes
22. When REG1 is used, the maximum fSW1 Frequency programed with external components should be 1500 kHz
23. Guaranteed by design.
34704
14
Analog Integrated Circuit Device Data
Freescale Semiconductor