Rainbow-electronics MAX1976 Bedienungsanleitung PDF herunterladen (Seite 3)

MAX1963/MAX1976

Low-Input-Voltage, 300mA LDO Regulators

with

RESET

in SOT and TDFN

_______________________________________________________________________________________ 3

Note 1: Limits are 100% production tested at T

= +25°C. Limits over the operating temperature range are guaranteed by design.

Note 2: The dropout voltage is defined as V

- V

OUT

, when V

OUT

is 4% lower than the value of V

OUT

when V

= V

OUT

+ 0.5V.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

RESET OUTPUT

Reset Threshold Accuracy V

OUT

falling, (1.7% typical hysteresis) 80 82.5 85 %V

OUT

RESET

= 100µA 1 100

RESET Output Low Voltage V

= +1.0V, I

RESET

= 100µA 30 400

= +25°C 0.001 1

RESET Output High Leakage I

RESET

= 3.6V,

RESET not asserted

= +85°C 0.01

µA

MAX1963 2.2 3.2 5.5

Reset Delay t

From V

OUT

high to RESET

rising

MAX1976 70 100 160

THERMAL PROTECTION

Thermal-Shutdown Temperature T

SHDN

+165 °C

Thermal-Shutdown Hysteresis ∆T

SHDN

15 °C

Typical Operating Characteristics

= (V

OUT

+ 0.5V) or 1.8V, whichever is greater; SHDN = IN, C

= 1µF, C

OUT

= 4.7µF, T

= +25°C, unless otherwise noted.)

OUTPUT VOLTAGE ACCURACY

vs. LOAD CURRENT

MAX1963/76 toc01

LOAD CURRENT (mA)

OUTPUT VOLTAGE ACCURACY (%)

25020015010050

-0.1

0.1

0.2

-0.2

0 300

OUT

= +3.0V

OUT

= +1.5V

OUT

= +0.75V

OUTPUT VOLTAGE ACCURACY

vs. INPUT VOLTAGE

MAX1963/76 toc02

INPUT VOLTAGE (V)

OUTPUT VOLTAGE ACCURACY (%)

3.02.62.21.8

-0.25

0.25

0.50

-0.50

1.4 3.4

OUT

= 300mA

OUT

= 100mA

OUT

= 0mA

OUT

= 1.5V

OUTPUT VOLTAGE ACCURACY

vs. TEMPERATURE

MAX1963/76 toc03

TEMPERATURE (°C)

OUTPUT VOLTAGE ACCURACY (%)

603510-15

-1.0

-0.5

0.5

1.0

1.5

-1.5

-40 85

OUT

= +1.5V

OUT

= 0mA, 100mA, 300mA

ELECTRICAL CHARACTERISTICS (continued)

= (V

OUT

+ 0.5V) or 1.8V, whichever is greater; SHDN = IN, C

= 1µF, C

OUT

= 4.7µF, T

= -40°C to +85°C, unless otherwise

noted. Typical values are at T

= +25°C.) (Note 1)

1 2 3 4 5 6 7 8 ... 11 12

MAX1963/MAX1976 1
SEMICONDUCTOR 12

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