Typical operating characteristics (continued) – Rainbow Electronics MAX8620 User Manual
Page 5
MAX8620Y
µPMIC for Microprocessors or DSPs
in Portable Equipment
_______________________________________________________________________________________
5
Typical Operating Characteristics (continued)
(V
IN1
= V
IN2
= 3.7V, PWR_ON = IN1, L = 2.2µH (LQH31CN2R2M53), C
FF
= 150pF, V
OUT1
= V
OUT2
= 2.6V, V
OUT3
= 1.867V (R1 =
150k
Ω, R2 = 75kΩ), C
IN
= 10µF, C
BP
= 0.01µF, C
OUT1
= C
OUT2
= 4.7µF, C
OUT3
= 2.2µF, RESET pulled up with 100k
Ω to OUT1,
T
A
= +25°C, unless otherwise noted.)
LOAD TRANSIENT (50mA TO 300mA)
MAX8620Y toc07
2
µs/div
I
L
I
LOAD
V
OUT3
AC-COUPLED
50mV/div
200mA/div
300mA
50mA
200mA/div
POWER-UP WAVEFORMS
MAX8620Y toc08
40
µs/div
V
OUT3
V
OUT1
V
OUT2
V
IN
2V/div
1V/div
1V/div
1V/div
PWR_ON STARTUP/SHUTDOWN WAVEFORMS
MAX8620Y toc09
100
µs/div
V
OUT3
V
OUT1
V
OUT2
V
PWR_ON
2V/div
1V/div
1V/div
1V/div
RESET WAVEFORMS
MAX8620Y toc10
10ms/div
V
OUT1
V
PWR_ON
2V/div
1V/div
1V/div
V
RESET
OUT2 SHUTDOWN WAVEFORMS
MAX8620Y toc11
200
µs/div
V
OUT2
V
EN2
1V/div
1V/div
HF_PWR STARTUP WAVEFORMS
MAX8620Y toc12
10ms/div
V
OUT1
V
HF_PWR
1V/div
2V/div
1V/div
V
RESET