ACT5880
Rev 2, 03-Sep-13
BACK-UP BATTERY CHARGER ELECTRICAL CHARACTERISTICS
(VVBAT = 3.6V, TA = 25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
MIN
TYP MAX UNIT
2.5V or
VVBBAT+1.2
Charge Valid Voltage Range VBBCIN
5.5
V
Regulation Voltage Range
Output Voltage Accuracy
Programmable by setting VSETBB[3:0]
0.4
3.7
ILOAD=10μA.
2.552
2.795
200
V
Load Regulation Drop Per
Decade Change of Current
ILOAD=1mA
150
mV
ILOAD=1mA, 100mV more drop from the output
voltage at the input voltage is 1.2V above the output.
Dropout Voltage
1.18
5
V
Maximum Charge Current
No Load Operation Current
Stable COUT
mA
µA
µF
10
For ILOAD~5mA
1
Current flows out off the BBCIN pin at VVBBAT=3.6V,
Reverse Blocking Leakage
Output Short Circuit Current
Note:
10
nA
VBBCIN=0V to 2V.
100
mA
See the TYPICAL PERFORMANCE CHARACTERISTICS for:
The Backup Battery Charge Current to Input Voltage.
ALWAYS-ON LOW POWER LDO ELECTRICAL CHARACTERISTICS
(VVBAT = 3.6V, TA = 25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
MIN
TYP MAX UNIT
1.8V or
VVALIVE+0.5
Operation Voltage Range
V
BBCIN or VVBBAT
5.5
V
Regulation Voltage Range Programmable by setting VSETRTC[3:0].
0.6
3.9
Output Voltage Accuracy
Dropout Voltage
Include load regulation and line input regulation.
OUT=5mA, VOUT=3.1V, 100mV more drop from the output
-3.5
2.5
%
I
150
25
mV
voltage at the input voltage is 1V above the output.
Maximum Output Current
7
50
7
mA
µA
No Load Operation Current RTCEN[ ]=0
For ILOAD~5mA
Stable COUT
1
2.2
4
µF
µA
For ILOAD~20mA
Reverse Blocking Leakage VVBBAT=3.6V, VBBCIN=0V to 2V.
Output Short Circuit Current
100 mA
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