Typical operating characteristics (continued) – Rainbow Electronics MAX8625A User Manual
Page 5
Typical Operating Characteristics (continued)
(V
IN
= 3.6V, SKIP = GND, T
A
= +25°C, Figure 4, unless otherwise noted.)
MAX8625A
High-Efficiency, Seamless Transition,
Step-Up/Down DC-DC Converter
_______________________________________________________________________________________
5
0
200
100
400
300
600
500
700
900
800
1000
2.0
3.0
3.5
2.5
4.0
4.5
5.0
5.5
6.0
MAXIMUM LOAD CURRENT
vs. INPUT VOLTAGE
MAX8625A toc10
INPUT VOLTAGE (V)
MAXIMUM LOAD CURRENT (mA)
V
OUT
= 3.3V
1
μs/div
SWITCHING WAVEFORMS
V
IN
= 3V, LOAD = 500mA, V
OUT
= 3.3V
MAX8625A toc11
V
LX1
2V/div
V
OUT
50mV/div
(AC-COUPLED)
V
LX2
2V/div
I
LX
500mA/div
1
μs/div
SWITCHING WAVEFORMS
V
IN
= 3.3V, LOAD = 500mA, V
OUT
= 3.3V
MAX8625A toc12
V
LX1
2V/div
V
OUT
50mV/div
(AC-COUPLED)
V
LX2
2V/div
I
LX
500mA/div
1
μs/div
SWITCHING WAVEFORMS
V
IN
= 3.6V, LOAD = 500mA, V
OUT
= 3.3V
MAX8625A toc13
V
LX1
2V/div
V
OUT
50mV/div
(AC-COUPLED)
V
LX2
2V/div
I
LX
500mA/div
10
μs/div
SKIP MODE
V
IN
= 3V, LOAD = 20mA,
V
OUT
= 3.288V
MAX8625A toc14
CH1 = V
LX1
2V/div
V
OUT
20mV/div
(AC-COUPLED)
CH2 = V
LX2
2V/div
I
LX
500mA/div
1
μs/div
FPWM MODE
V
IN
= 3V, LOAD = 20mA,
V
OUT
= 3.308V
MAX8625A toc15
V
LX1
2V/div
OUT
20mV/div
(AC-COUPLED)
V
LX2
2V/div
I
LX
500mA/div