Datasheet

Data Sheet AD5735
Rev. C | Page 23 of 48
DC-TO-DC CONVERTER
90
85
80
75
70
65
60
55
50
0 242016
12
84
V
BOOST_x
EFFICIENCY (%)
OUTPUT CURRENT (mA)
0m
A
TO 24mA RANGE
1kΩ LOAD
EXTERNA
L
R
SET
f
SW
= 410kHz
INDUCTOR = 10µH (XAL4040-103)
T
A
= 25°C
AV
CC
= 4.5V
AV
CC
= 5V
A
V
CC
= 5.5V
09961-016
Figure 53. Efficiency at V
BOOST_x
vs. Output Current (See Figure 77)
90
85
80
75
70
65
60
55
50
–40 10040 60 80200–20
V
BOOST_x
EFFICIENCY (%)
TEMPERATURE (°C)
0mA
TO 24mA RANGE
1kΩ LOAD
EXTERNA
L R
SET
AV
CC
= 5V
f
SW
= 410kHz
INDUCT
OR = 10µH (XAL4040-103)
T
A
= 25°C
20mA OUTPUT
09961-017
Figure 54. Efficiency at V
BOOST_x
vs. Temperature (See Figure 77)
80
70
60
50
40
30
20
0 2420
161284
I
OUT_x
EFFICIENCY (%)
OUTPUT CURRENT (mA)
0mA TO 24mA RANGE
1kΩ LOAD
EXTERNAL R
SET
f
SW
= 410kHz
INDUCTOR = 10µH (XAL4040-103)
T
A
= 25°C
A
V
CC
= 4.5V
AV
CC
= 5V
AV
CC
= 5.5V
09961-018
Figure 55. Output Efficiency vs. Output Current (See Figure 77)
80
70
60
50
40
30
20
–40
100
40
60
80
20
0–20
I
OUT_x
EFFICIENCY (%)
TEMPERATURE (°C)
0mA
TO 24m
A
RANGE
1kΩ LOAD
EXTERNA
L
R
SET
AV
CC
= 5V
f
SW
= 410kHz
INDUCTOR = 10µH (XAL4040-103)
20m
A
OUTPUT
09961-019
Figure 56. Output Efficiency vs. Temperature (See Figure 77)
0
0.1
0.2
0.3
0.4
0.5
0.6
–40
–20
0
20
40 60
80 100
SWITCH RESISTANCE (Ω)
TEMPERA
TURE (°C)
09961-123
Figure 57. Switch Resistance vs. Temperature