Rainbow Electronics MAX1802 - Manual (Page 11)

MAX1802
Digital Camera Step-Down
Power Supply
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Typical Operating Characteristics (continued)
(Circuit of Figure 1, V VDDM = 6V, V VDDC = 3.3V, V ONM = 3V, V ONC = V ON1 = V DCON2 = V DCON3 = 0, T A = +25°C, unless otherwise
noted.)
1ms/div
STARTUP SEQUENCE
MAX1802 toc15
0V
0V
0A
V ONM
5V/div
V MAIN
2V/div
V CORE
2V/div
400 µs/div
MAIN OUTPUT
LOAD-TRANSIENT RESPONSE
MAX1802 toc16
V OUT
AC-COUPLED
100mV/div
I LOAD
200mA/div
0A
C OUT = 100 µF
500 µs/div
CORE OUTPUT
LOAD-TRANSIENT RESPONSE
MAX1802 toc17
V OUT
AC-COUPLED
200mV/div
I LOAD
100mA/div
0A
V OUT = 2.5V
400 µs/div
AUXILIARY OUTPUT
LOAD-TRANSIENT RESPONSE
MAX1802 toc18
V OUT
AC-COUPLED
100mV/div
I LOAD
200mA/div
0A
2.5ms/div
MAIN TRANSIENT RESPONSE
SUBJECT TO CORE TRANSIENT
MAX1802 toc19
V OUT (MAIN)
AC-COUPLED
20mV/div
I LOAD (CORE)
100mA/div
0A
V OUT = 2.5V