MAX8940EXKXY-T Ver la hoja de datos (PDF) - Maxim Integrated
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MAX8940EXKXY-T Datasheet PDF : 9 Pages
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Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulator
Typical Operating Characteristics (continued)
(VIN = VOUT + 0.5V, CIN = 1µF, COUT = 1µF, CBP = 10nF, TA = +25°C, unless otherwise noted.)
OUTPUT NOISE vs. BP CAPACITANCE
25
LOAD TRANSIENT RESPONSE
MAX8940 toc12
LOAD TRANSIENT
RESPONSE NEAR DROPOUT
MAX8940 toc13
20
VIN = 3.5V
VIN = 3.1V
ILOAD = 0 TO 50mA
ILOAD = 0 TO 50mA
VOUT = 3V
15
10
VOUT
VOUT
10mV/div
10mV/div
5
0
1
10
100
BP CAPACITANCE (nF)
1ms/div
1ms/div
LINE TRANSIENT RESPONSE
MAX8940 toc14
VIN = 3.5V TO 4V
EXITING SHUTDOWN WAVEFORM
MAX8940 toc15
SHUTDOWN VOLTAGE
VOUT = 2.8V
RLOAD = 47Ω
ENTERING SHUTDOWN DELAY
MAX8940 toc16
CBP = 0.01µF
VOUT = 2.8V
SHUTDOWN
VOLTAGE
200µs/div
VOUT
2mV/div
OUTPUT VOLTAGE
2V/div
20µs/div
OUTPUT VOLTAGE
2V/div
40µs/div
SHUTDOWN EXIT DELAY
MAX8940 toc17
VOUT = 3V
CBP = 100nF
VOUT
1V/div
REGION OF STABLE COUT ESR
vs. LOAD CURRENT
100
10
SHUTDOWN
VOLTAGE
20µs/div
1
0.1
STABLE REGION
0.01
0
20 40 60 80 100 120
LOAD CURRENT (mA)
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