MAX1586A Datasheet, PDF (11/32 Pages) Maxim Integrated Products – High-Efficiency, Low-IQ PMICs with Dynamic Core for PDAs and Smart Phones

High-Efficiency, Low-I_Q PMICs with
Dynamic Core for PDAs and Smart Phones
Typical Operating Characteristics (continued)
(Circuit of Figure 5, V_IN = 3.6V, T_A = +25°C, unless otherwise noted.)
SWITCHING FREQUENCY
vs. SUPPLY VOLTAGE
1040
T_A = +85°C
1000
960
T_A = +25°C
T_A = -40°C
920
880
2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
REFERENCE VOLTAGE
vs. TEMPERATURE
1.265
1.260
1.255
1.250
1.245
1.240
1.235
1.230
1.225
-40 -15 10
35
60
85
TEMPERATURE (^°C)
REG1 SWITCHING WAVEFORMS
WITH 800mA LOAD
MAX1586A/86B/87A toc12
V1
10mv/div
AC-COUPLED
V_LX1
2V/div
0
I_L1
500mA/div
0
400ns/div
REG3 SWITCHING WAVEFORMS
WITH 250mA LOAD
MAX1586A/86B/87A toc14
V3
10mv/div
AC-COUPLED
REG1 SWITCHING WAVEFORMS
WITH 10mA LOAD
MAX1586A/86B/87A toc13
50mv/div
V1
AC-COUPLED
V_LX1
2V/div
0
500mA/div
I_L1
0
20µs/div
REG3 PULSE-SKIP SWITCHING
WAVEFORMS WITH 10mA LOAD
MAX1586A/86B/87A toc15
V3
10mv/div
AC-COUPLED
V_LX3
I_L3
400ns/div
2V/div
0
500mA/div
0
2V/div
V_LX3
0
500mA/div
I_L3
0
10µs/div
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