MAX8967 Datasheet, PDF (29/59 Pages) Maxim Integrated Products – Dual 2A Step-Down Converters with 6 LDOs for Baseband and Applications Processor

MAX8967
Dual 2A Step-Down Converters with 6 LDOs
for Baseband and Applications Processor
Typical Operating Characteristics (continued)
(VIN_ = VAV = 3.6V, VIO = 1.8V, Typical Application Circuit, TA = +25NC, unless otherwise noted.)
STEP-DOWN EFFICIENCY
vs. LOAD CURRENT
100
95
90
85
80
75
VBATT = 4.2V
VBATT = 3.6V
70
VBATT = 3.0V
65
VBATT = 2.6V
60
55
VOUT = 1.8V, PFM, REMOTE SENSE DISABLED,
L = 1µH (TOKO DFE252010R-1R0N)
50
0.001
0.01
0.1
1
10
LOAD CURRENT (A)
STEP-DOWN EFFICIENCY
vs. LOAD CURRENT
100
95
90
85
80
75
VBATT = 4.2V
70
VBATT = 3.6V
65
VBATT = 3.0V
VBATT = 2.6V
60
55
VOUT = 0.6V, PFM, REMOTE SENSE DISABLED,
L = 1µH (TOKO DFE252010R-1R0N)
50
0.001
0.01
0.1
1
10
LOAD CURRENT (A)
STEP-DOWN EFFICIENCY
vs. LOAD CURRENT
100
95
90
85
80
VBATT = 4.2V
75
VBATT = 3.6V
70
VBATT = 3.2V
65
60 ^{VOUT = 2.8V, PFM, REMOTE SENSE DISABLED,}
L = 1µH (TOKO DFE252010R-1R0N)
55
0.001
0.01
0.1
1
10
LOAD CURRENT (A)
STEP-DOWN LOAD REGULATION
1.220
1.215
1.210
1.205
1.200
1.195
VBATT = 5.5V
VBATT = 4.2V
1.190
VBATT = 3.6V
VBATT = 3.0V
1.185
FPWM, REMOTE SENSE ENABLED
1.180
0
0.5
1.0
1.5
2.0
LOAD CURRENT (mA)
VID TRANSTION
(12.5mV/µs SLEW)
MAX8967 toc14
3.38V
VOUT1
VID TRANSTION
(12.5mV/µs SLEW)
MAX8967 toc15
3.38V
VOUT1
Maxim Integrated
40µs/div
0.6V
VIN = 4.2V
VIN = 4.2V
40µs/div
0.6V
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