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参数资料
| 型号： | LTC3459ES6#TR |
| 厂商： | Linear Technology |
| 文件页数： | 4/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST SYNC ADJ SOT23-6 |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.5 V ~ 10 V |
| 输入电压： | 1.5 V ~ 5.5 V |
| PWM 型： | Burst Mode? |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | TSOT-23-6 |
LTC3459
TYPICAL PERFORMANCE CHARACTERISTICS
(T A = 25°C, unless otherwise noted).
Minimum R OUT vs V IN
Maximum P OUT vs V IN
V IN and V OUT Quiescent Current
vs Temperature
4000
3500
3000
V OUT = 10V
V OUT = 7.5V
V OUT = 5V
V OUT = 3.3V
L = 22μH
400
350
300
V OUT = 10V
V OUT = 7.5V
V OUT = 5V
V OUT = 3.3V
L = 22μH
16
V IN = 3.3V
14 V OUT = 5V
12
I IN
2500
2000
1500
1000
250
200
150
100
10
8
6
4
500
50
2
I OUT
0
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
–40
–20
0 20 40
60
80
V IN (V)
Switching Frequency
vs V IN at Various V OUTs
3459 G01
V IN (V)
3459 G02
V OUT Regulation vs V IN and C OUT
TEMPERATURE (°C)
3459 G03
N-Channel and P-Channel
MOSFET R DS(ON) vs Temperature
3.0
V OUT = 10V
2.0
4.7μF
6
V OUT = 5V
2.5
2.0
V OUT = 7.5V
V OUT = 5V
V OUT = 3.3V
L = 22μH
1.5
1.0
0.5
10μF
22μF
47μF
V OUT = 5V
L = 22μH
5
4
PCH
NCH
0
3
1.5
1.0
–0.5
–1.0
–1.5
2
1
0.5
1.5
2
2.5
3
3.5
4
4.5
5
5.5
–2.0
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
–40
–20
0
20
40
60
80
1.2
V IN (V)
Shutdown Threshold Voltage
vs Temperature
3459 G04
Burst Cycle
V IN (V)
3459 G05
TEMPERATURE (°C)
Switch Pin Waveform
3459 G06
1.0
0.8
SHDN RISING
SW
CURRENT
50mA/DIV
SW
CURRENT
50mA/DIV
SHDN FALLING
0.6
0.4
INDUCTOR
CURRENT
50mA/DIV
INDUCTOR
CURRENT
50mA/DIV
0.2
V IN = 3.3V
1μs/DIV
3459 G08
V IN = 3.3V
100ns/DIV
3459 G09
V OUT = 5V
V OUT = 5V
0
L = 22μH
L = 22μH
–40
–20
0
20
40
60
80
TEMPERATURE (°C)
3459 G07
3459fc
4
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