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参数资料
| 型号： | LT3467IS6#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 9/18页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 1.1A SOT23-6 |
| 标准包装： | 500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.26 V ~ 40 V |
| 输入电压： | 2.4 V ~ 16 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.3MHz |
| 电流 - 输出： | 1.1A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°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 |
LT3467/LT3467A
APPLICATIONS INFORMATION
LOAD CURRENT
100mA/DIV
AC COUPLED
V OUT
200mV/DIV
AC COUPLED
Layout Hints
The high speed operation of the LT3467/LT3467A demands
careful attention to board layout. You will not get adver-
tised performance with careless layout. Figure 5a shows
the recommended component placement for the ThinSOT
package. Figure 5b shows the recommended component
I L1
5A/DIV
AC COUPLED
20μs/DIV
3467 F03
placement for the DFN package. Note the vias under the
Exposed Pad. These should connect to a local ground
plane for better thermal performance.
Figure 3. Transient Response of Figure 8’s Step-Up
Converter without Phase Lead Capacitor
V OUT
D1
L1
C1
V IN
LOAD CURRENT
100mA/DIV
AC COUPLED
V OUT
200mV/DIV
C2
GND
1
2
3
FB
6
5
4
SS
C SS
SHDN
AC COUPLED
R2
R1
I L1
5A/DIV
AC COUPLED
C3
V OUT
3467 F05a
20μs/DIV
3467 F04
Figure 5a. Suggested Layout—ThinSOT
Figure 4. Transient Response of Figure 8’s Step-Up
Converter with a 22pF Phase Lead Capacitor
Setting Output Voltage
To set the output voltage, select the values of R1 and R2
C3
R1
R2
V OUT
(see Figure 2) according to the following equation.
GND
FB 1
8
SHDN
R1 = R2 ?
– 1 ?
? V OUT ?
? 1.255V ?
A good value for R2 is 13.3k which sets the current in the
resistor divider chain to 1.255V/13.3k = 94μA.
V OUT
C2
D1
L1
2
3
4
7
6
5
C1
C SS
V IN
3467 F05b
Figure 5b. Suggested Layout—DFN
3467afe
9
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相关代理商/技术参数 |
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|---|---|
| LT3468 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Photoflash Capacitor Chargers in ThinSOT |
| LT3468-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Photoflash Capacitor Chargers in ThinSOT |
| LT3468-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Photoflash Capacitor Chargers in ThinSOT |
| LT3468ES5 | 制造商:Linear Technology 功能描述:Photo Flash Charger 5-Pin TSOT-23 制造商:Linear Technology 功能描述:SPECIALTY ANALOG CIRCUIT, PDSO5 |
| LT3468ES5#PBF | 制造商:Linear Technology 功能描述:Photo Flash Charger 5-Pin TSOT-23 |
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