Rainbow Electronics MAX5097 - Manual (Page 5)

MAX5096/MAX5097
40V, 600mA Buck Converters with Low-
Quiescent-Current Linear Regulator Mode
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ELECTRICAL CHARACTERISTICS (continued)
(V IN = +14V, I OUT = 1mA, C IN = 100µF, C OUT = 22µF, L = 22µH, C BP = 1µF, V EN = +2.4V (Figure 2), SGND = PGND = 0V, T A = T J =
-40°C to +125°C, unless otherwise noted. Typical values are at T A = T J = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
EN Low-Voltage Threshold V ENL Regulator off 0.4 V
EN Input Pulldown V EN = 2V, LDO/BUCK = 4V 0.5 µA
RESET Voltage Threshold High V RESET_H V OUT rising 90 92 94 % V OUT
RESET Voltage Threshold Low V RESET_L V OUT falling 87 90 92 % V OUT
RESET Output-Low Voltage V
RL
I
SINK
= 1mA 0.2 V
RESET Output-High Leakage
Current
I
RH
V
RESET
= 5V, V
ADJ
= 1.5V 1 µA
RESET Output Minimum Timeout
Period
C CT = 0 25 µs
V OUT to RESET Delay V OUT falling 10mV/µs, C CT = 0 6 µs
Delay Comparator Threshold V CT_TH V CT rising 1.18 1.2374 1.29 V
Delay Comparator Threshold
Hysteresis
100 mV
CT Charge Current I CH 0.74 1 1.20 µA
CT Discharge Current I DISCH V CT = 1V 13.8 mA
THERMAL SHUTDOWN
Thermal Shutdown Temperature T J(SHDN) Temperature rising +165 °C
Thermal Shutdown Hysteresis ∆T
J(SHDN) 20 °C
Note 1: Limits to -40°C are guaranteed by design.
Note 2: The continuous maximum output current from LDO is limited by package power dissipation.