MAX14720 Datasheet, PDF (6/38 Pages) Maxim Integrated Products – Extended System Battery Use Time

MAX14720/MAX14750
Power-Management Solution
Electrical Characteristics (continued)
(V_CC = V_BIN = V_LIN = V_HVIN = V_SWIN = 2.7V, T_A = -40°C to +85°C, all registers in their default state, unless otherwise noted. Typical
values are at T_A = +25°C.) (Note 2)
PARAMETER
Startup Output Current
Short-Circuit Peak
Current Limit
SYMBOL
I_{STUP_BK}
I_{SHRT_BUCK}
CONDITIONS
BuckFst = 1
V_BOUT = GND.
MIN
TYP
MAX
UNITS
42
mA
0.54
0.8
2.19
A
Thermal-Shutdown
Threshold
T_{SHDN_BUCK}
TJ rising
150
°C
Thermal-Shutdown
Hysteresis
T_{SHDN_HYST_BUCK}
21
°C
LDO (C_LOUT = 1µF, unless otherwise noted. Typical values are with I_LOUT = 10mA, V_LOUT = 2V)
LDO mode
1.71
Input Voltage Range
V_LIN
Switch mode
1.2
I_LOUT = 0A
0.9
Quiescent Supply
Current
I_{Q_LDO}
I_LOUT = 0A, LIN UVLO enabled
1.1
I_LOUT = 0A, switch mode
0.3
Quiescent Supply
Current in dropout
I_{Q_LDO_DRP}
I_LOUT = 0A, V_SET = 2.8V
2.1
Maximum Output
Current
Output Voltage
Output Accuracy
I_{LOUT_MAX}
V_LIN > 1.8V
V_LIN = 1.8V or lower
100
50
V_LOUT
100mV step
0.9
ACC_LDO
V_LIN = (V_LOUT + 0.5V) or higher,
I_LOUT = 1mA
-3.1
Dropout Voltage
Line Regulation Error
Load Regulation Error
Line Transient
Load Transient
V_{DROP_LDO}
V_{LINEREG_LDO}
V_{LOADREG_LDO}
V_{LINETRAN_LDO}
V_{LOADTRAN_LDO}
V_LIN = V_SET = 2.7V,
I_LOUT = 100mA
V_LIN = (V_LOUT + 0.5 V) to 5.5V
V_LIN = 1.8V or higher,
I_LOUT = 100μA to 100mA
V_LIN = 4V to 5V, 200ns rise time
V_LIN = 4V to 5V,1µs rise time
I_LOUT = 0mA to 10mA,
200ns rise time
I_LOUT = 0mA to 100mA,
200ns rise time
-0.5
0.001
±35
±25
100
200
5.5
5.5
1.9
2.2
0.5
4.6
4
+3.1
100
+0.5
0.005
V
µA
µA
mA
mA
V
%
mV
%/V
%/mA
mV
mV
mV
mV
Passive Discharge
Pulldown Resistance
R_{PDL_LDO}
4
10
18
kΩ
Active Discharge
Current
I_{ACTDL_LDO}
5
20
40
mA
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