参数资料
| 型号： | LT1947EMSE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 5/12页 |
| 文件大小： | 0K |
| 描述： | IC REG TFT-LCD ADJ 10-MSOP |
| 标准包装： | 2,500 |
| 应用： | 转换器，TFT，LCD |
| 输入电压： | 2.7 V ~ 8 V |
| 输出数： | 3 |
| 输出电压： | 最高可调至 30V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 供应商设备封装： | 10-MSOP 裸露焊盘 |
| 包装： | 带卷 (TR) |
LT1947
PI FU CTIO S
FB1 (Pin 1): Feedback Pin for First Switcher. Connect
resistor divider tap here. Set AV DD according to:
AV DD = 1.26V(1 + R1/R2).
FB2 (Pin 2): Feedback Pin for Second Switcher. Connect
resistor divider 2 here and set V ON using:
V ON = 1.26V (1 + R3/R4) – 160mV.
C T (Pin 3): Timing Capacitor Pin. Connect a 10nF capacitor
from C T to ground to program a 2.3ms delay from FB1
reaching 1.26V to V ON turning on.
SW1 (Pin 4): AV DD Switch Node. Connect L1 and D1 here
(see Figure 1). Minimize trace area at this pin to keep EMI
down.
GND (Pin 5): Ground. Connect directly to local ground
plane.
V IN (Pin 6): Input Supply Pin. Must be bypassed with a
ceramic capacitor close to the pin.
SW2 (Pin 7): V O2 Switch Node. Connect L2 and D2 here.
Minimize trace area at this pin to keep EMI down.
SHDN (Pin 8): Pull this pin low for shutdown mode. For
normal operation, tie to a voltage between 2.4V and 8V.
V O2 (Pin 9): SW2 Output. This node is also internally
connected to the emitter of Q3 (see Block Diagram), the
high side switch between V O2 and V ON .
V ON (Pin 10): This is the delayed output for second
Switcher. V ON reaches its programmed voltage after the
internal timer times out.
Exposed Pad (Pin 11): Ground (MSE package only). The
exposed pad must be soldered to the PCB and electrically
connected to ground.
1947fa
5
相关PDF资料 |
PDF描述 |
|---|---|
| LT1949IS8#TRPBF | IC REG BOOST ADJ 1A 8SOIC |
| LT1950IGN#TRPBF | IC REG CTRLR PWM CM 16-SSOP |
| LT1952IGN-1#PBF | IC REG CTRLR ISO PWM CM 16-SSOP |
| LT1956IFE-5#TRPBF | IC REG BUCK 5V 1.5A 16TSSOP |
| LT1959IR#TR | IC REG BUCK ADJ 4.5A D2PAK |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1948 | 制造商:LINEAR 制造商全称:LINEAR 功能描述:DC/DC Converter for TFT-LCD Panels |
| LT1948EMS8 | 制造商:LINER 制造商全称:Linear Technology 功能描述:DC/DC Converter for TFT-LCD Panels |
| LT1949 | 制造商:LINER 制造商全称:Linear Technology 功能描述:1.4A, 1.5MHz Synchronous Step-Up DC/DC Converter with Output Disconnect |
| LT1949-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:1.4A, 1.5MHz Synchronous Step-Up DC/DC Converter with Output Disconnect |
| LT1949-1EMS8 | 功能描述:IC REG BOOST ADJ 1A 8MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:20 系列:SIMPLE SWITCHER® 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:12V 输入电压:4 V ~ 60 V PWM 型:电压模式 频率 - 开关:52kHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 包装:管件 供应商设备封装:16-DIP 其它名称:*LM2575HVN-12LM2575HVN-12 |
发布紧急采购，3分钟左右您将得到回复。