Datasheet

LTC3529
4
3529fb
R
DS(ON)
(mΩ)
3529 G12
160
140
120
100
80
60
20
40
0
TEMPERATURE (°C)
–50 1251007550250–25
PMOS
NMOS
NORMALIZED TO 25°C (%)
3529 G10
10
0
2
4
6
8
–10
–8
–6
–4
–2
TEMPERATURE (°C)
–50 1109070503010–30 –10
TEMPERATURE (°C)
–50
CHANGE FROM 25°C (%)
150100050
3529 G07
1.0
0.8
0.6
0.4
0.2
–0.8
–0.6
–0.4
–0.2
0
–1.0
TEMPERATURE (°C)
–45 –25
CURRENT LIMIT (A)
1159575–5 35 5515
3529 G06
1.90
1.40
1.45
1.50
1.55
1.80
1.65
1.60
1.75
1.70
1.85
TYPICAL PERFORMANCE CHARACTERISTICS
Current Limit vs Temperature
Switching Frequency Variation
vs Temperature
No-Load Input Current vs V
IN
R
DS(ON)
vs Temperature
Output Voltage Change
vs Temperature
1μs/DIV
3529 G09
SW
2V/DIV
I
L
25mA/DIV
V
IN
= 3.6V
C
OUT
= 10μF
L = 4.7μH
SW Pin Anti-Ringing
QUIESCENT CURRENT (mA)
3529 G11
18
16
14
12
10
8
6
2
4
0
V
IN
(V)
1.5 5.54.53.52.5
I
OUT
(mA)
3529 G08
1600
1400
1200
1000
800
600
400
200
0
V
IN
(V)
1.5 5.04.54.03.53.02.0 2.5
L = 4.7μH
Maximum Output Current vs V
IN
I
LOAD
(mA)
0
V
OUT
CHANGE (%)
500400300100 200
3529 G13
0.5
0.4
0.3
0.2
0.1
–0.4
–0.3
–0.2
–0.1
0
–0.5
V
IN
= 3.3V
L = 4.7μH
Load Regulation