Rainbow-electronics MAX5097 Manual do Utilizador descarregar pdf (Página 5)

MAX5096/MAX5097

40V, 600mA Buck Converters with Low-

Quiescent-Current Linear Regulator Mode

_______________________________________________________________________________________ 5

ELECTRICAL CHARACTERISTICS (continued)

= +14V, I

OUT

= 1mA, C

= 100µF, C

OUT

= 22µF, L = 22µH, C

= 1µF, V

= +2.4V (Figure 2), SGND = PGND = 0V, T

= T

-40°C to +125°C, unless otherwise noted. Typical values are at T

= T

= +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

= 2V, LDO/BUCK = 4V 0.5 µA

RESET Voltage Threshold High

RESET_H

OUT

rising 90 92 94

% V

OUT

RESET Voltage Threshold Low

RESET_L

OUT

falling 87 90 92

% V

OUT

RESET Output-Low Voltage V

SINK

= 1mA 0.2 V

RESET Output-High Leakage

Current

RESET

= 5V, V

ADJ

= 1.5V 1 µA

RESET Output Minimum Timeout

Period

= 0 25 µs

OUT

to RESET Delay V

OUT

falling 10mV/µs, C

= 0 6 µs

Delay Comparator Threshold V

CT_TH

rising

1.18 1.2374 1.29

Delay Comparator Threshold

Hysteresis

100

CT Charge Current I

0.74

1.20

µA

CT Discharge Current I

DISCH

= 1V

13.8

THERMAL SHUTDOWN

Thermal Shutdown Temperature

(

SHDN

)

Temperature rising

+165

°C

Thermal Shutdown Hysteresis

∆T

(

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.

1 2 3 4 5 6 7 8 9 10 ... 19 20

MAX5096/MAX5097 1

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