MAX8625A Maxim Integrated Products, MAX8625A Datasheet - Page 7

• Manufacturer Part Number: MAX8625A
• Description: Step-Up/Down DC-DC Converter
• Manufacturer: Maxim Integrated Products

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(V
IN
= 3.6V, SKIP = GND, T
1.28
1.27
1.26
1.25
1.24
1.23
1.22
2.48
2.46
2.44
2.42
2.40
2.38
2.36
2.34
2.32
2.30
2.28
-40
-50
REFERENCE vs. TEMPERATURE
-20
MINIMUM STARTUP VOLTAGE
-25
_______________________________________________________________________________________
WITH 300mA LOAD
vs. TEMPERATURE
0
TEMPERATURE (°C)
TEMPERATURE (°C)
0
A
20
= +25°C, Figure 4, unless otherwise noted.)
High-Efficiency, Seamless Transition,
25
V
OUT
40
= 3.3V, NO LOAD
50
60
V
OUT
V
IN
75
= 3.0V,
80
= 3.3V
3.6V,
4.2V,
5.0V
Step-Up/Down DC-DC Converter
100
100
Typical Operating Characteristics (continued)
FPWM MODE V
BOOST-TO-BUCK TRANSITION
IN
2μs/div
= 3.6V, V
OUT
1.28
1.27
1.26
1.25
1.24
1.23
1.22
= 3.288V
MAX8625A toc26
-40
REFERENCE vs. TEMPERATURE
SHUTDOWN DUE TO OVERLOAD
-20
V
100mV/div
AC-COUPLED
V
1V/div
DC OFFSET = 3V
I
200mA/div
V
LX
OUT
IN
IN
= 3.6V, V
0
TEMPERATURE (°C)
NO LOAD
100μs/div
20
OUT
40
= 3.288V
60
V
V
OUT
IN
MAX8625A toc25
= 3.0V,
80
= 3.3V
3.6V,
4.2V,
5.0V
100
V
2V/div
V
500mV/div
I
500mA/div
V
2V/div
LX
LX2
LX2
OUT
7