Rainbow Electronics MAX1587A - Manual (Page 13)

MAX1586A/MAX1586B/MAX1587A
High-Efficiency, Low-I
Q
PMICs with
Dynamic Core for PDAs and Smart Phones
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Typical Operating Characteristics (continued)
(Circuit of Figure 5, V IN = 3.6V, T A = +25°C, unless otherwise noted.)
REG3 LOAD-TRANSIENT RESPONSE
MAX1586A/86B/87A toc22
200µs/div
0A
V3
100mV/div
AC-COUPLED
I LOAD3
200mA/div
REG3 OUTPUT VOLTAGE CHANGING FROM
1.3V TO 1.0V WITH DIFFERENT VALUES OF C RAMP
MAX1586A/86B/87A toc23
200µs/div
C
RAMP
= 2200pF
C RAMP = 1500pF
C RAMP = 1000pF
C RAMP = 330pF
REG6 USIM TRANSITIONS
MAX1586A/86B/87A toc24
10µs/div
0
500mV/div
V6
2.5V TO 3.0V
V6
1.8V TO 2.5V
V6
0 TO 1.8V