AD5755-1
DC-TO-DC BLOCK
90
AVCC = 4.5V
85
AVCC = 5V
AVCC = 5.5V
80
75
70
65
0mA TO 24mA RANGE
60
1kΩ LOAD
EXTERNAL RSET
fSW = 410kHz
55
INDUCTOR = 10µH (XAL4040-103)
TA = 25°C
50
0
4
8
12
16
20
24
CURRENT (mA)
Figure 55. Efficiency at VBOOST_x vs. Output Current (See Figure 80)
90
20mA
85
80
75
70
65
0mA TO 24mA RANGE
1kΩ LOAD
60
EXTERNAL RSET
AVCC = 5V
55
fSW = 410kHz
INDUCTOR = 10µH (XAL4040-103)
50
–40 –20
0
20
40
60
TEMPERATURE (°C)
80
100
Figure 56. Efficiency at VBOOST_x vs. Temperature (See Figure 80)
80
AVCC = 4.5V
AVCC = 5V
70
AVCC = 5.5V
60
50
40
0mA TO 24mA RANGE
1kΩ LOAD
EXTERNAL RSET
30
fSW = 410kHz
INDUCTOR = 10µH (XAL4040-103)
TA = 25°C
20
0
4
8
12
16
20
24
CURRENT (mA)
Figure 57. Output Efficiency vs. Output Current (See Figure 80)
Data Sheet
80
20mA
70
60
50
40
30
20
–40
0mA TO 24mA RANGE
1kΩ LOAD
EXTERNAL RSET
AVCC = 5V
fSW = 410 kHz
INDUCTOR = 10µH (XAL4040-103)
–20
0
20
40
60
TEMPERATURE (°C)
80
100
Figure 58. Output Efficiency vs. Temperature (See Figure 80)
0.6
0.5
0.4
0.3
0.2
0.1
0
–40 –20
0
20
40
60
80
100
TEMPERATURE (°C)
Figure 59. Switch Resistance vs. Temperature
Rev. E | Page 24 of 52