LTC3528-2 데이터 시트보기 (PDF) - Linear Technology
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LTC3528-2 Datasheet PDF : 18 Pages
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LTC3528-2
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted)
Burst Mode Threshold Current
vs VIN
80
VOUT = 5V
60
EXIT BURST
40
ENTER BURST
20
0
1 1.5 2 2.5 3 3.5 4
VIN (V)
35242 G11
Oscillator Frequency Change
vs Temperature
2
1
0
–1
–2
–3
–4
–50 –25
0 25 50 75
TEMPERATURE (˚C)
100 125
35282 G14
Output Voltage vs Load Current
for VOUT = 5V
0.20
VIN = 3.6V
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
0
200
400
LOAD CURRENT (mA)
600
3528-2 G27
Oscillator Frequency Change
vs VOUT
0.50
0.25
0
–0.25
–0.50
–0.75
–1.00
–1.25
–1.50
–1.75
–2.00
–2.25
1.5 2
2.5 3 3.5
VOUT (V)
4 4.5 5
35282 G12
RDS(ON) Change vs Temperature
40
30
20
10
0
–10
–20
–50 –25
0 25 50 75
TEMPERATURE (˚C)
100 125
35282 G15
Output Voltage vs Load Current
for VOUT = 3.3V
0.20
VIN = 1.2V
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
0
50
100
150
LOAD CURRENT (mA)
200
35282 G28
RDS(ON) vs VOUT
450
400
350
300
PMOS
250
200
NMOS
150
100
1.5 2 2.5 3 3.5 4 4.5 5
VOUT (V)
35282 G13
VFB vs Temperature
1.200
1.199
1.198
1.197
1.196
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
35282 G16
Start-Up Voltage vs Temperature
850
800
750
700
650
600
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
35282 G17
35282fb
5
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