Typical operating characteristics (continued) – Rainbow Electronics MAX8842 User Manual
Page 5
MAX8840/MAX8841/MAX8842
Ultra-Low-Noise, High PSRR, Low-Dropout,
150mA Linear Regulators in µDFN
_______________________________________________________________________________________
5
Typical Operating Characteristics (continued)
(V
IN
= V
OUT
+ 0.5V, C
IN
= 1µF, C
OUT
= 1µF, C
BP
= 10nF, T
A
= +25°C, unless otherwise noted.)
MAX8840
OUTPUT NOISE vs. BP CAPACITANCE
MAX8840 toc13
BP CAPACITANCE (nF)
OUTPUT NOISE (
μ
V)
10
5
10
15
20
25
0
1
100
MAX8840
LOAD-TRANSIENT RESPONSE
MAX8840 toc14
1ms/div
V
IN
= 3.5V
I
LOAD
= 0 TO 50mA
V
OUT
10mV/div
MAX8840
LOAD-TRANSIENT RESPONSE NEAR DROPOUT
MAX8840 toc15
1ms/div
V
IN
= 3.1V
I
LOAD
= 0 TO 50mA
V
OUT
10mV/div
MAX8840
LINE-TRANSIENT RESPONSE
MAX8840 toc16
200
μs/div
V
IN
= 3.5V TO 4V
V
OUT
2mV/div
MAX8840
EXITING SHUTDOWN WAVEFORM
MAX8840 toc17
20
μs/div
V
OUT
= 2.85V
R
LOAD
= 47
Ω
OUTPUT
VOLTAGE
2V/div
SHUTDOWN
VOLTAGE
MAX8840
ENTERING SHUTDOWN DELAY
MAX8840 toc18
40
μs/div
C
BP
= 0.01
μF
OUTPUT
VOLTAGE
2V/div
SHUTDOWN
VOLTAGE
MAX8840
SHUTDOWN EXIT DELAY
MAX8840 toc19
20
μs/div
SHUTDOWN
VOLTAGE
V
OUT
1V/div
V
OUT
= 3V
C
BP
= 100nF
MAX8840
REGION OF STABLE C
OUT
ESR
vs. LOAD CURRENT
MAX8840 toc20
LOAD CURRENT (mA)
C
OUT
ESR (
Ω
)
100
75
50
25
0.1
1
10
100
0.01
0
150
125