参数资料
型号: LT3500IMSE#TRPBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: 3.5 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO16
封装: LEAD FREE, PLASTIC, MSOP-16
文件页数: 25/28页
文件大小: 318K
代理商: LT3500IMSE#TRPBF
LT3500
6
3500fc
Boost Current vs Switch Current
Minimum Boost Voltages
vs Temperature
Minimum Input Voltage
SWITCH CURRENT (A)
0
BOOST
CURRENT
(mA)
30
40
50
1.6
3500 G19
20
10
25
35
45
15
5
0
0.4
0.2
0.8
0.6
1.2 1.4
1.8
1.0
2.0
150°C
25°C
–50°C
TEMPERATURE (°C)
–50
1.5
BOOST
VOLTAGE
(V)
1.7
1.9
2.1
2.3
050
100
150
3500 G20
2.5
2.7
–25
25
75
125
MINIMUM BOOST FOR
SWITCH SATURATION
LOAD CURRENT (A)
0
INPUT
VOLTAGE
(V)
8
7
6
5
4
3
2
1
0
1.6
3500 G21
0.4
0.8
1.2
2.0
1.4
0.2
0.6
1.0
1.8
VOUT1 = 5V
VOUT1 = 3.3V
TA = 25°C
fSW = 1MHz
L = 3.3μH
TYPICAL PERFORMANCE CHARACTERISTICS
Peak Switch Current
vs Temperature
LDRV Short-Circuit Current
vs Temperature
External Sync Duty Cycle Range
vs External Sync Frequency
Minimum Switching Times
Frequency vs RRT/SYNC
Switch Saturation Voltage
vs Switch Current
TEMPERATURE (°C)
–50
2.5
CURRENT
(A)
2.6
2.8
2.9
3.0
3.5
3.2
0
50
75
3500 G13
2.7
3.3
3.4
3.1
–25
25
100
150
125
MSE PACKAGE
DD PACKAGE
TEMPERATURE (°C)
–50
10
CURRENT
(mA)
11
13
14
15
20
17
0
50
75
3500 G14
12
18
19
16
–25
25
100
150
125
SYNCHRONIZATION FREQUENCY (kHz)
250
0
DUTY
CYCLE
(%)
10
30
40
50
100
70
750
1250
3500 G15
20
80
90
60
1750
2250
MINIMUM DUTY CYCLE
MAXIMUM DUTY CYCLE
TA = 25°C
TEMPERATURE (°C)
–50
50
TIME
(ns)
75
125
150
175
300
225
0
50
75
3500 G16
100
250
275
200
–25
25
100 125
150
MINIMUM ON TIME
MINIMUM OFF TIME
RRT/SYNC (kΩ)
0
FREQUENCY
(kHz) 1500
2000
2500
160
3500 G17
1000
500
1250
1750
2250
750
250
0
40
20
80
60
120 140
180
100
200
TA = 25°C
SWITCH CURRENT (A)
0
SWITCH
SATURATION
VOLTAGE
(mV)
200
400
600
100
300
500
0.4
0.8
1.2
1.6
3500 G18
2.0
0.2
0
0.6
1.0
1.4
1.8
–50°C
150°C
25°C
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