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参数资料
| 型号： | LT3494EDDB |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.25 A SWITCHING REGULATOR, PDSO8 |
| 封装： | 3 X 2 MM, PLASTIC, MO-229WECD-1, DFN-8 |
| 文件页数： | 7/12页 |
| 文件大小： | 261K |
| 代理商： | LT3494EDDB |
LT3494/LT3494A
4
3494fb
Output Voltage vs Temperature
Minimum Switching Frequency
Quiescent Current–Not Switching
SHDN Current vs SHDN Voltage
Peak Inductor Current (LT3494)
TEMPERATURE (
°C)
–40
OUTPUT
VOLTAGE
CHANGE
(%)
0
1.0
120
3494 G04
–1.0
–2.0
0
40
80
–20
20
60
100
2.0
–0.5
0.5
–1.5
1.5
LT3494
FIGURE 5 CIRCUIT
TEMPERATURE (
°C)
–40
SWITCHING
FREQUENCY
(kHz)
49.0
50.0
120
3494 G05
48.0
47.0
0
40
80
–20
20
60
100
51.0
48.5
49.5
47.5
50.5
VCC = 3.6V
NO LOAD
VCC (V)
3
50
I VCC
(μ
A)
55
65
70
75
100
85
5
7
8
3494 G06
60
90
95
80
4
6
9
10
SHDN PIN VOLTAGE (V)
0
SHDN
PIN
CURRENT
(μ
A)
5
10
15
20
24
6
8
3494 G07
10
12
14
16
Peak Inductor Current (LT3494A)
TEMPERATURE (
°C)
–40
100
PEAK
INDUCTOR
CURRENT
(mA)
150
200
250
300
040
80
120
3494 G08
350
400
–20
20
60
100
FIGURE 5 CIRCUIT
VCC = 3.6V
VOUT = 16V
LT3494 Switching Waveforms at
No Load
VOUT
10mV/DIV
AC
COUPLED
SW
VOLTAGE
10V/DIV
VCC = 3.6V
VOUT = 16V
INDUCTOR
CURRENT
50mA/DIV
5
μs/DIV
3494 G10
FIGURE 5 CIRCUIT
VOUT
10mV/DIV
AC
COUPLED
SW
VOLTAGE
10V/DIV
INDUCTOR
CURRENT
100mA/DIV
2
μs/DIV
3494 G11
FIGURE 5 CIRCUIT
VCC = 3.6V
VOUT = 16V
VOUT
10mV/DIV
AC
COUPLED
SW
VOLTAGE
10V/DIV
INDUCTOR
CURRENT
100mA/DIV
500ns/DIV
3494 G12
FIGURE 5 CIRCUIT
VCC = 3.6V
VOUT = 16V
LT3494 Switching Waveforms at
1mA Load
LT3494 Switching Waveforms at
25mA Load
TEMPERATURE (
°C)
–40
400
PEAK
INDUCTOR
CURRENT
(mA)
450
500
550
600
040
80
120
3494 G09
650
700
–20
20
60
100
FIGURE 6 CIRCUIT
VCC = 3.6V
VOUT = 16V
TYPICAL PERFORMANCE CHARACTERISTICS T
A = 25°C unless otherwise noted.
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相关代理商/技术参数 |
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|---|---|
| LT3494EDDB#PBF | 制造商:Linear Technology 功能描述:DC-DC CONVERTER BOOST DFN-8 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BOOST, DFN-8; Primary Input Voltage:16V; No. of Outputs:1; Output Current:180mA; No. of Pins:8; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:8-DFN; Supply Voltage Max:16V ;RoHS Compliant: Yes |
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