参数资料
型号: LT3412AEFE
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: 3 A SWITCHING REGULATOR, 4 kHz SWITCHING FREQ-MAX, PDSO16
封装: 4.4 MM, PLASTIC, TSSOP-16
文件页数: 16/20页
文件大小: 267K
代理商: LT3412AEFE
LTC3412A
5
3412afb
INPUT VOLTAGE (V)
2.5
ON-RESISTANCE
(m
Ω
)
100
95
90
85
80
75
70
65
60
55
50
4.5
3412A G13
3.0
3.5
4.0
5.0
2.5
4.5
3.0
3.5
4.0
5.5
5.0
3412A G10
3412A G11
TEMPERATURE (
°C)
ON-RESISTANCE
(m
Ω
)
3412A G14
120
100
80
60
40
20
0
–40
0
40
60
–20
20
80
100
120
INPUT VOLTAGE (V)
2.5
SWITCH
LEAKAGE
CURRENT
(nA)
3.0
3.5
4.0
4.5
3412A G15
5.0
50
45
40
35
30
25
20
15
10
5
0
5.5
ROSC (kΩ)
40
FREQUENCY
(kHz)
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
0
240
440 540
940
3412A G16
140
340
640 740 840
INPUT VOLTAGE (V)
FREQUENCY
(kHz)
1060
1050
1040
1030
1020
1010
1000
990
3412A G17
TEMPERATURE (
°C)
–40
FREQUENCY
(kHz)
1020
1015
1010
1005
1000
995
990
985
980
975
970
0
40
60
3412A G18
–20
20
80
100
120
TEMPERATURE (
°C)
–45
V
REF
(V)
75
0.7975
0.7970
0.7965
0.7960
0.7955
0.7950
0.7945
0.7940
0.7935
0.7930
3412A G12
–25
–5
15
35
55
95
115
40
μs/DIV
1ms/DIV
VOUT
100mV/DIV
VOUT
2V/DIV
RUN/SS
2V/DIV
INDUCTOR
CURRENT
2A/DIV
INDUCTOR
CURRENT
2A/DIV
VIN = 3.3V
VOUT =2.5V
F = 1MHz
LOAD STEP = 0A TO 3A
FIGURE 4 CIRCUIT
VIN = 3.3V
VOUT =2.5V
LOAD STEP = 2A
FIGURE 4 CIRCUIT
PFET
NFET
VIN = 3.3V
ROSC = 294k
VIN = 3.3V
ROSC = 294k
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Start-Up Transient
Switch On-Resistance vs
Temperature
Switch Leakage Current vs
Input Voltage
Switch On-Resistance vs
Input Voltage
Frequency vs ROSC
Frequency vs Input Voltage
Frequency vs Temperature
VREF vs Temperature
Load Step Transient Forced
Continuous
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