MAX16922_12 Datasheet, PDF (4/17 Pages) Maxim Integrated Products – 2.2MHz, Dual, Step-Down DC-DC Converters, Dual LDOs, and RESET

2.2MHz, Dual, Step-Down DC-DC
Converters, Dual LDOs, and RESET
ELECTRICAL CHARACTERISTICS (continued)
(V_PV1 = 13.5V, V_PV2 = V_PV3 = V_OUT1, V_PV4 = V_OUT2; T_A = T_J = -40°C to +125°C, unless otherwise noted. Typical values are at
T_A = +25°C under normal conditions, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Power-Supply Rejection Ratio
Shutdown Output Resistance
THERMAL OVERLOAD
I_OUT4 = 30mA, f = 1kHz
EN = low
57
dB
1
k
Thermal-Shutdown Temperature
(Note 4)
150 175
°C
Thermal-Shutdown Hysteresis
RESET
15
°C
OUT1 OV Threshold
110
%
OUT1 Reset Threshold
Reset option 1 (see the Selector Guide)
Reset option 2 (see the Selector Guide)
85
90
95
%
75
80
85
OUT2 Reset Threshold
Percentage of nominal output
85
90
95
%
Reset Timeout Period
Reset timeout option 1 (see the Selector
Guide)
14.9
ms
Reset timeout option 2 (see the Selector
Guide)
1.9
Output-High Leakage Current
1
μA
Output Low Level
Sinking -3mA
0.4
V
UV Propagation Time
28
μs
EN LOGIC INPUT
EN Threshold Voltage
EN rising
1.4
1.8
2.2
V
EN Threshold Hysteresis
0.4
V
Input Current
PWM LOGIC INPUT
V_EN = 5V
0.5
μA
Input High Level
PWM rising
1.8
V
Input Low Level
PWM falling
0.4
V
Logic-Input Current
0
V_PWM
5.5V
1
μA
Note 2: All units are 100% production tested at T_A = +25°C. All temperature limits are guaranteed by design.
Note 3: Once PVI exceeds undervoltage-lockout rising threshold 4.0V and the device is in regulation.
Note 4: Guaranteed by design; not product tested.
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