参数资料
型号: LTC3528EDDB#TRM
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: SWITCHING REGULATOR, 1300 kHz SWITCHING FREQ-MAX, PDSO8
封装: 3 X 2 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WECD-1, DFN-8
文件页数: 12/16页
文件大小: 316K
代理商: LTC3528EDDB#TRM
LTC3528/LTC3528B
5
3528f
TEMPERATURE (
°C)
–50
–30
600
START-UP
VOLTAGE
(mV)
700
850
–10
30
50
3528 G17
650
800
750
10
70
90
VOUT (V)
1
10.5
CURRENT
A)
11.5
12.5
13.5
23
3528 G18
45
VIN = 1.2V
Oscillator Frequency Change
vs VOUT
RDS(ON) vs VOUT
Oscillator Frequency Change
vs Temperature
RDS(ON) Change vs Temperature
VFB vs Temperature
Start-Up Voltage vs Temperature
Fixed Frequency VOUT Ripple and
Inductor Current Waveforms
Burst Mode Quiescent Current vs
VOUT (LTC3528)
VIN (V)
1
0
I OUT
(mA)
20
40
RISING
FALLING
60
23
3528 G11
4
VOUT = 5V
VOUT (V)
1.5
FREQUENCY
CHANGE
(%)
–1.50
0
0.25
0.50
2.5
3.5
4
3528 G12
–2.00
–0.50
–1.00
–1.75
–0.25
–2.25
–0.75
–1.25
2
3
4.5
5
NORMALIZED TO VOUT = 3V
VOUT (V)
1.5
300
350
450
34
3528 G13
250
200
2
2.5
3.5
4.5
5
150
100
400
R
DS(ON)
(m
Ω
)
PMOS
NMOS
TEMPERATURE (
°C)
–50
–5
FREQUENCY
CHANGE
(%)
–4
–2
–1
0
5
2
–10
30
50
3528 G14
–3
3
4
1
–30
10
70
90
NORMALIZED TO 25
°C
TEMPERATURE (
°C)
–50
–30
–20
CHANGE
(%)
0
30
–10
30
50
3528 G15
–10
20
10
70
90
TEMPERATURE (
°C)
–50
1.180
V
FB
(V)
1.185
1.190
1.195
1.200
–30
–10
10
30
3528 G16
50
70
90
VOUT
20mV/DIV
2
μs/DIV
3528 G19
VIN = 1.2V
VOUT = 3.3V
COUT = 22μF
CFF = 33pF
IOUT = 100mA
IL
200mA/DIV
TYPICAL PERFORMANCE CHARACTERISTICS (T
A = 25°C unless otherwise noted)
Burst Mode Threshold Current
vs VIN
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