参数资料
型号: LT3502EDC
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: 1.1 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO10
封装: 2 X 2 MM, PLASTIC, DFN-10
文件页数: 15/20页
文件大小: 457K
代理商: LT3502EDC
LT3502/LT3502A
4
3502f
LT3502 Maximum Load Current
VOUT = 5V, L = 22μH
Switch Voltage Drop
Switching Frequency
Soft-Start (
SHDN)
LT3502 Maximum Load Current
VOUT = 3.3V, L = 15μH
SWITCH CURRENT (A)
0
500
25
°C
125
°C
600
700
0.8
3502 G09
400
300
0.2
0.4
0.6
1.0
200
100
0
V
CE
(mV)
–40
°C
UVLO
TEMPERATURE (
°C)
–50
2.0
2.5
3.5
100
3502 G10
1.5
1.0
0
50
150
0.5
0
3.0
V
IN
(V)
TEMPERATURE (
°C)
–50
FREQUENCY
(MHz)
1.0
1.5
150
3502 G11
0.5
0
50
100
2.5
2.0
LT3502A
LT3502
SHDN PIN VOLTAGE (mV)
0
–0.1
SWITCH
CURRENT
LIMIT
(A)
0
0.2
0.3
0.4
0.9
0.6
400
800 1000
3502 G12
0.1
0.7
0.8
0.5
200
600
1200 1400 1600
SHDN Pin Current
SHDN PIN VOLTAGE (V)
0
SHDN
PIN
CURRENT
A)
50
150
200
250
10
20
25
45
3502 G13
100
515
30
35
40
300
TEMPERATURE (
°C)
–50
0
CURRENT
LIMIT
(A)
0.1
0.3
0.4
0.5
1.0
0.7
0
50
3502 G14
0.2
0.8
0.9
0.6
100
150
DA VALLEY CURRENT LIMIT
SW PEAK CURRENT LIMIT
Switch Current Limit
VIN (V)
0
LOAD
CURRENT
(A)
0.5
0.6
0.7
40
3502 G07
0.4
0.3
0
0.1
10
20
30
0.2
0.9
0.8
MINIMUM
TYPICAL
VIN (V)
0
LOAD
CURRENT
(A)
0.5
0.6
0.7
40
3502 G08
0.4
0.3
0
0.1
10
20
30
0.2
0.9
0.8
MINIMUM
TYPICAL
Switch Current Limit
DUTY CYCLE (%)
0
CURRENT
LIMIT
(A)
0.2
0.4
0.6
0.8
1.0
1.2
50
100
3502 G18
LT3502A
LT3502
TYPICAL PERFORMANCE CHARACTERISTICS (T
A = 25°C unless otherwise noted)
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