MAX8940EXKXY-T 데이터 시트보기 (PDF) - Maxim Integrated

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MAX8940EXKXY-T

Low-Noise, High PSRR, Low-Dropout, 120mA Linear Regulator

Maxim Integrated 

Low-Noise, High PSRR,

Low-Dropout, 120mA Linear Regulator

ELECTRICAL CHARACTERISTICS (continued)

(VIN = VOUT + 0.5V, TA = -40°C to +85°C, unless otherwise noted. CIN = 1µF, COUT = 1µF, CBP = 10nF. Typical values are at +25°C;

the MAX8940 is tested with 2.45V output, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Output Noise Voltage

(RMS)

Shutdown Exit Delay

SHDN Logic Low Level

SHDN Logic High Level

SHDN Input Bias Current

Thermal Shutdown

f = 100Hz to 100kHz, ILOAD = 10mA

f = 100Hz to 100kHz, ILOAD = 80mA

RLOAD = 50Ω (Note 3)

VIN = 2.8V to 6V

VIN = 2.8V to 6V

VIN = 6V, SHDN = 0V or

6V

TA = +25°C

TA = +85°C

25

µV

13

300 µs

0.4

V

1.5

V

µA

0.01

160

°C

Thermal-Shutdown

Hysteresis

10

°C

Note 1: Limits are 100% tested at +25°C. Limits over operating temperature range are guaranteed by design.

Note 2: Dropout is defined as VIN - VOUT when VOUT is 100mV below the value of VOUT for VIN = VOUT + 0.5V.

Note 3: Time needed for VOUT to reach 90% of final value.

Typical Operating Characteristics

(VIN = VOUT + 0.5V, CIN = 1µF, COUT = 1µF, CBP = 10nF, TA = +25°C, unless otherwise noted.)

OUTPUT VOLTAGE vs. INPUT VOLTAGE

3.0

2.5

IOUT = 0mA

2.0

1.5

1.0

IOUT = 120mA

0.5

0.0

0123456

INPUT VOLTAGE (V)

OUTPUT VOLTAGE ACCURACY

vs. LOAD CURRENT

0.6

0.4

0.2

0

-0.2

-0.4

-0.6

0

20 40 60 80 100 120

LOAD CURRENT (mA)

OUTPUT VOLTAGE ACCURACY

vs. TEMPERATURE

1.0

IOUT = 1mA

0.8

0.6

0.4

0.2

0

-0.2

-0.4

-0.6

-0.8

-1.0

-40 -15

10

35

60

85

TEMPERATURE (°C)

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