Datasheet

AD5755-1 Data Sheet
Rev. E | Page 24 of 52
DC-TO-DC BLOCK
90
85
80
75
70
65
60
55
50
0 2420161284
V
BOOST_x
EFFICIENCY (%)
CURRENT (mA)
09226-016
0mA TO 24mA RANGE
1kΩ LOAD
EXTERNAL R
SET
f
SW
= 410kHz
INDUCTOR = 10µH (XAL4040-103)
T
A
= 25°C
AV
CC
= 4.5V
AV
CC
= 5V
AV
CC
= 5.5V
Figure 55. Efficiency at V
BOOST_x
vs. Output Current (See Figure 80)
90
85
80
75
70
65
60
55
50
–40 10040 60 80200–20
V
BOOST_x
EFFICIENCY (%)
TEMPERATURE (°C)
09226-01709226-017
0mA TO 24mA RANGE
1kΩ LOAD
EXTERNAL R
SET
AV
CC
= 5V
f
SW
= 410kHz
INDUCTOR = 10µH (XAL4040-103)
20mA
Figure 56. Efficiency at V
BOOST_x
vs. Temperature (See Figure 80)
80
70
60
50
40
30
20
0 2420161284
I
OUT_x
EFFICIENCY (%)
CURRENT (mA)
09226-018
0mA TO 24mA RANGE
1kΩ LOAD
EXTERNAL R
SET
f
SW
= 410kHz
INDUCTOR = 10µH (XAL4040-103)
T
A
= 25°C
AV
CC
= 4.5V
AV
CC
= 5V
AV
CC
= 5.5V
Figure 57. Output Efficiency vs. Output Current (See Figure 80)
80
70
60
50
40
30
20
–40 10040 60 80200–20
I
OUT_x
EFFICIENCY (%)
TEMPERATURE (°C)
09226-019
0mA TO 24mA RANGE
1kΩ LOAD
EXTERNAL R
SET
AV
CC
= 5V
f
SW
= 410 kHz
INDUCTOR = 10µH (XAL4040-103)
20mA
Figure 58. Output Efficiency vs. Temperature (See Figure 80)
0
0.1
0.2
0.3
0.4
0.5
0.6
–40 –20 0 20 40 60 80 100
SWITCH RESISTANCE (Ω)
TEMPERATURE (°C)
09226-123
Figure 59. Switch Resistance vs. Temperature