Rainbow Electronics MAX1835 - Manual (Page 5)

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 = 22 Ω,
V OUT = 3.3V
V
BATT
1V/div
40 µs/div
LOAD TRANSIENT
I LOAD
100mA/div
MAX1832/35 toc11
R LOAD = 22 Ω TO 200Ω,
V OUT = +3.3V, V BATT = +2.0V
V OUT
100mV/div
0
40 µs/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
10 µs/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
40 µs/div
SHUTDOWN RESPONSE
V OUT
1V/div
MAX1832/35 toc13
R LOAD = 22 Ω, 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)