MAX16922_10 Datasheet, PDF (6/17 Pages) Maxim Integrated Products – 2.2MHz, Dual, Step-Down DC-DC Converters, Dual LDOs, and RESET

2.2MHz, Dual, Step-Down DC-DC
Converters, Dual LDOs, and RESET
Typical Operating Characteristics (continued)
(V_PV1 = 13.5V, V_PV2 = V_PV3 = V_OUT1, V_PV4 = V_OUT2; T_A = +25°C, unless otherwise specified.)
SWITCHING FREQUENCY
vs. LOAD CURRENT
2.0
1.6
1.2
0.8
0.4
0
0 200 400 600 800 1000 1200
LOAD CURRENT (mA)
DROPOUT VOLTAGE
vs. LOAD CURRENT
1.2
1.1
1.0
0.9
OUT1
0.8
0.7
0.6
0.5
0.4
OUT2
0.3
OUT3
0.2
0.1
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2
LOAD CURRENT (A)
OUT1 DROPOUT VOLTAGE
vs. TEMPERATURE
1.4
I_OUT1 = 1.2A
1.3
1.2
1.1
1.0
0.9
0.8
0.7
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
OUT2 DROPOUT VOLTAGE
vs. TEMPERATURE
0.7
I_OUT2 = 600mA
0.6
0.5
0.4
0.3
0.2
0.1
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
OUT1 LOAD TRANSITION
MAX16922 toc13
I_OUT1
500mA/div
V_OUT1
AC-COUPLED
50mV/div
20ms/div
OUT2 LOAD TRANSIENT
MAX16922 toc14
OUT1 LINE TRANSIENT
MAX16922 toc15
I_OUT2
200mA/div
V_OUT2
AC-COUPLED
20mV/div
PV1
5V/div
OUT1
AC-COUPLED
20mV/div
20ms/div
4ms/div
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