MAX14720 Datasheet, PDF (10/38 Pages) Maxim Integrated Products – Extended System Battery Use Time

MAX14720/MAX14750
Power-Management Solution
Typical Operating Characteristics
(V_CC = V_BIN = V_LIN = V_HVIN = V_SWIN = 2.7V, T_A = +25°C, all registers in their default state, unless otherwise noted.)
TOTAL QUIESCENT CURRENT
10
vs. TEMPERATURE
toc01
MAX14750
8
6
HVEN = SWEN =
BEN = LEN = 1,
LDOUVLOsel = 0
4
HVEN = SWEN =
BEN = LEN = 1,
LDOUVLOsel = 1
HVEN = SWEN =
2
BEN = LEN = 0
0
-40
-15
10
35
60
85
TEMPERATURE (°C)
100
BUCK EFFICIENCY vs. LOAD toc4
80
V_CC = 2.7V
60
40
V_CC = 3.7V
20
0
0.001 0.01
0.1
1
10
I_B2OUT (mA)
100 1000
100
BUCK-BOOST EFFICIENCY vs. LOAD _toc7
80
60
40
V_CC = 2.7V
20
0
0.001
V_CC = 3.7V
I_HVOUT = 10mA
0.01 0.1
1
10
I_HVOUT (mA)
100 1000
TOTAL QUIESCENT CURRENT
10
vs. V_CC
toc02
HVEN = SWEN = BEN = LEN = 1,
V_LOUT = 1.7V
8
T_A = +25°C ^{TA = +85°C}
LDOUVLOsel = 0
6
4
2
LDOUVLOsel = 1
T_A = -40°C
0
1.8
2.8
3.8
4.8
5.8
V_CC (V)
TOTAL QUIESCENT CURRENT
4
vs. V_CC
toc03
HVEN = SWEN = BEN = LEN = 0
3
T_A = +25°C ^{TA = +85°C}
2
1
T_A = -40°C
0
1.8
2.8
3.8
4.8
5.8
V_CC (V)
1.22
V_BOUT vs. LOAD
toc5
1.21
V_CC = 2.7V
1.2
V_CC = 3.7V
1.19
1.18
0
20
40
60
80
100
I_BOUT (mA)
BUCK TRANSIENT RESPONSE_toc6
I_BOUT
V_BOUT
50mA/div
50mV/div
100µs/div
100
BUCK-BOOST EFFICIENCY vs. V_CC toc8
I_HVOUT = 10mA
90
80
70
60
50
1.8
2.8
3.8
4.8
5.8
V_CC (V)
3.325
3.3
3.275
3.25
3.225
3.2
0
V_HVOUT vs. LOAD
toc9
V_CC = 3.7V
V_CC = 2.7V
20
40
60
80
100
I_HVOUT (mA)
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