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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： | 14/20页 |
| 文件大小： | 457K |
| 代理商： | LT3502EDC |
LT3502/LT3502A
3
3502f
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2. The LT3502EDC and LT3502AEDC are guaranteed to meet
performance specications from 0°C to 125°C junction temperature
range. Specications over the –40°C to 125°C operating junction
temperature range are assured by design, characterization and correlation
ELECTRICAL CHARACTERISTICS The ● denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 10V, VSHDN = 5V, VBOOST = 15V.
with statistical process controls. The LT3502IDC and LT3502AIDC are
guaranteed over the – 40°C to 125°C operating junction temperature
range.
Note 3: Current limit guaranteed by design and/or correlation to static test.
Slope compensation reduces current limit at higher duty cycle.
Note 4: Current ows into pin.
Note 5: Current ows out of pin.
TYPICAL PERFORMANCE CHARACTERISTICS
LT3502A 3.3VOUT Efciency
LT3502A 5VOUT Efciency
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
SHDN Bias Current
VSHDN = 5V
VSHDN = 0V
55
80
1
μA
SHDN Input Voltage High
2V
SHDN Input Voltage Low
0.3
V
LT3502 3.3VOUT Efciency
LT3502 5VOUT Efciency
LT3502A Maximum Load Current
VOUT = 3.3V, L = 6.8μH
LOAD CURRENT (A)
0
EFFICIENCY
(%)
10
30
40
50
0.2
0.4
0.5
90
3502 G01
20
0.1
0.3
60
70
80
24VIN
12VIN
LOAD CURRENT (A)
0
EFFICIENCY
(%)
10
30
40
50
0.2
0.4
0.5
90
3502 G02
20
0.1
0.3
60
70
80
24VIN
12VIN
LOAD CURRENT (A)
0
EFFICIENCY
(%)
60
80
100
0.4
3502 G03
40
20
50
70
90
30
10
0
0.1
0.2
0.3
0.5
5VIN
24VIN
12VIN
LT3502A Maximum Load Current
VOUT = 5V, L = 10μH
LOAD CURRENT (A)
0
EFFICIENCY
(%)
60
80
100
0.4
3502 G04
40
20
50
70
90
30
10
0
0.1
0.2
0.3
0.5
24VIN
12VIN
VIN (V)
0
LOAD
CURRENT
(A)
0.1
0.3
0.4
0.5
1.0
0.7
10
20
TYPICAL
3502 G05
0.2
0.8
0.9
0.6
30
40
MINIMUM
VIN (V)
0
LOAD
CURRENT
(A)
0.1
0.3
0.4
0.5
1.0
0.7
10
20
3502 G06
0.2
0.8
0.9
0.6
30
40
MINIMUM
TYPICAL
(TA = 25°C unless otherwise noted)
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