User Manual

MAX1832–MAX1835
High-Efficiency Step-Up Converters with
Reverse Battery Protection in a SOT23-6
_______________________________________________________________________________________ 5
2ms/div
ON/OFF RESPONSE
V
OUT
1V/div
MAX1832/35 toc10
V
SHDN
= V
BATT
= 2.0V, R
LOAD
= 22Ω,
V
OUT
= 3.3V
V
BATT
1V/div
40µs/div
LOAD TRANSIENT
I
LOAD
100mA/div
MAX1832/35 toc11
R
LOAD
= 22Ω TO 200Ω,
V
OUT
= +3.3V, V
BATT
= +2.0V
V
OUT
100mV/div
0
40µs/div
LINE TRANSIENT
V
OUT
50mV/div
MAX1832/35 toc12
I
OUT
= 100mA, V
OUT
= +3.3V,
V
BATT
= +2.0V TO +2.5V
V
BATT
500mV/div
10µs/div
SWITCHING WAVEFORMS
V
LX
2V/div
MAX1832/35 toc14
I
OUT
= 40mA, V
OUT
= +3.3V, V
BATT
= +2.0V
V
LX
500mA/div
V
OUT
100mV/div
40µs/div
SHUTDOWN RESPONSE
V
OUT
1V/div
MAX1832/35 toc13
R
LOAD
= 22Ω, V
BATT
= 3.3V, V
BATT
= 2.0V
V
SHDN
1V/div
0
0
MAX1833
Typical Operating Characteristics (continued)
(V
OUT
= +3.3V, V
BATT
= +2V, unless otherwise noted.) (Figure 1)