- 您现在的位置：买卖IC网 > PDF目录44986 > LT3663HMS8E-5#PBF (LINEAR TECHNOLOGY CORP) 2.5 A SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, PDSO8 PDF资料下载
参数资料
| 型号： | LT3663HMS8E-5#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 2.5 A SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | LEAD FREE, PLASTIC, MSOP-8 |
| 文件页数： | 2/16页 |
| 文件大小： | 188K |
| 代理商： | LT3663HMS8E-5#PBF |
LT3663
10
3663fb
APPLICATIONS INFORMATION
BOOST and BIAS Pin Considerations
Capacitor C3 and the internal boost diode (see the Block
Diagram) are used to generate a boost voltage that is higher
than the input voltage. In most cases a 0.1μF capacitor
works well. Figure 4 shows three ways to arrange the boost
circuit. The BOOST pin must be more than 2.3V above the
SW pin for best efciency. For outputs of 3V and above, the
standard circuit (Figure 4a) is best. For outputs between
2.8V and 3V, use a 1μF boost capacitor. A 2.5V output
presents a special case because it is marginally adequate
to support the boosted drive stage while using the internal
boost diode. For reliable BOOST pin operation with 2.5V
outputs use a good external Schottky diode (such as the
ON Semi, MBR0540) and a 1μF boost capacitor (see Figure
4b). For lower output voltages connect an external Schottky
diode to the input (Figure 4c), or to another supply greater
than 2.8V. Using VIN reduces the maximum input voltage
to 25V. The circuit in Figure 4a is more efcient because
the BOOST pin current comes from a lower voltage source.
Take care to ensure that the maximum voltage ratings of
the BOOST pin is not exceeded.
Figure 4. Three Circuits to Generate BOOST Pin Voltage
LT3663
(4c) For VOUT < 2.5V; VIN(MAX) = 25V
VIN
3663 F04
BOOST
SW
D3
C3
ISENSE
VOUT
LT3663
(4b) For 2.5V < VOUT < 2.8V
VIN
BOOST
SW
D3
C3
ISENSE
VOUT
LT3663
(4a) For VOUT > 2.8V
VIN
BOOST
SW
C3
ISENSE
VOUT
相关PDF资料 |
PDF描述 |
|---|---|
| LT3663IMS8E-3.3#TRPBF | 2.5 A SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, PDSO8 |
| LT3663IDCB-3.3#TRPBF | 2.5 A SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, PDSO8 |
| LT3663HMS8E#PBF | 2.5 A SWITCHING REGULATOR, 1650 kHz SWITCHING FREQ-MAX, PDSO8 |
| LT3681EDE#TR | 4.4 A SWITCHING REGULATOR, 3100 kHz SWITCHING FREQ-MAX, PDSO14 |
| LT3681EDE | 4.4 A SWITCHING REGULATOR, 3100 kHz SWITCHING FREQ-MAX, PDSO14 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3663IDCB#TRMPBF | 功能描述:IC REG BUCK ADJ 1.2A 8DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°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 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT3663IDCB#TRPBF | 功能描述:IC REG BUCK ADJ 1.2A 8DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°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 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT3663IDCB-5#TRMPBF | 制造商:Linear Technology 功能描述: |
| LT3663IDCB-5#TRPBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 7.5V to 36V 8-Pin DFN EP T/R |
| LT3663IMS8E#PBF | 功能描述:IC REG BUCK ADJ 1.2A 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 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:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
发布紧急采购，3分钟左右您将得到回复。