MAX15022_11 Datasheet, PDF (6/28 Pages) Maxim Integrated Products – Dual, 4A/2A, 4MHz, Step-Down DC-DC Regulator with Dual LDO Controllers

Dual, 4A/2A, 4MHz, Step-Down DC-DC
Regulator with Dual LDO Controllers
Typical Operating Characteristics (continued)
(V_AVIN = V_DVDD1 = V_DVDD2 = V_PVIN1 = V_PVIN2 = 5V, V_OUT1 = 3.3V, V_OUT2 = 1.5V, V_{PGND_} = 0V, R_T = 16.5kΩ. T_A = +25°C, unless
otherwise noted.)
QUIESCENT CURRENT
vs. TEMPERATURE
5.00
4.75
4.50
4.25
4.00
3.75
3.50
3.25
3.00
2.75
NO SWITCHING
2.50
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
SWITCHING CURRENT
vs. TEMPERATURE
27
26
25
24
REGULATOR 1 ENABLED
23
VOUT1 = 3.3V
22
21
20
19
18
17
16
REGULATOR 2 ENABLED
15
VOUT2 = 1.5V
14
13
12
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
NORMALIZED UNDERVOLTAGE LOCKOUT
THRESHOLD vs. TEMPERATURE
1.030
1.025
1.020
1.015
1.010
1.005
1.000
0.995
0.990
0.985
0.980
0.975
VUVLO (NOM) = 2.2V
0.970
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
EN_ THRESHOLD
vs. TEMPERATURE
1.260
1.255
1.250
1.245
1.240
1.235
1.230
1.225
1.220
1.215
1.210
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
COINCIDENT TRACKING SOFT-START
MAX15022 toc13
VAVIN
5V/div
0V
VOUT1
1V/div
VOUT2
1V/div
0V
COINCIDENT TRACKING SOFT-STOP
MAX15022 toc14
VAVIN
5V/div
0V
VOUT1
EN1
VOUT2
1V/div
0V
1ms/div
400µs/div
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