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参数资料
| 型号： | LT8415IDDB#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.03 A SWITCHING REGULATOR, PDSO12 |
| 封装： | 3 X 2 MM, LEAD FREE, PLASTIC, DFN-12 |
| 文件页数： | 10/12页 |
| 文件大小： | 182K |
| 代理商： | LT8415IDDB#PBF |
LT8415
7
8415f
TIMING DIAGRAM
2V
0V
4V
RISE
DELAY
34V
30V
FALL
TIME
RISE
TIME
IN1,IN2
VOLTAGE
OUT1,OUT2
VOLTAGE
FALL
DELAY
8415 TD
OPERATION
Switching Regulator
The LT8415 utilizes a variable peak current, variable off-
time control scheme to provide high efciency over a wide
output current range.
The operation of the part can be better understood by
referring to the Block Diagram. The part senses the
output voltage by monitoring the internal FB node, and
servoing the FB node voltage to be equal to the FBP
pin voltage. The chip integrates an accurate high value
resistor divider (12.4MEG/0.4MEG) from the VOUT pin.
The output voltage is set by the FBP pin voltage, which
in turn is set by an external resistor divider from the VREF
pin. The FBP pin voltage can also be directly biased with
an external reference, allowing full control of the output
voltage during operation.
The Switch Control block senses the output of the ampli-
er and adjusts the switching frequency as well as other
parameters to achieve regulation. During the start-up of
the circuit, special precautions are taken to ensure that
the inductor current remains under control.
The LT8415 also has a PMOS output disconnect switch.
The PMOS switch is turned on when the part is enabled
via the SHDN pin. When the part is in shutdown, the
PMOS switch turns off, allowing the VOUT node to go to
ground. This type of disconnect function is often required
in power supplies.
Half-Bridge
The N-channel and P-channel MOSFETs in each half-bridge
are synchronously controlled by a single input pin, and
will never turn on at the same time in typical applications,
protecting against shoot-through current. The OUT1 and
OUT2 pins are the same polarity as the IN1 and IN2 pins
respectively. When the part is disabled, both N-channel
and P-channel MOSFETs turn off, and the OUT1 and OUT2
pins will become high impedance with a 20MΩ pull down
resistor connected to ground.
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相关代理商/技术参数 |
参数描述 |
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| LT8500EUHH#PBF | 功能描述:IC PWM GENERATOR 56-QFN RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:- 标准包装:1 系列:- 类型:时钟/频率发生器，多路复用器 PLL:是 主要目的:存储器，RDRAM 输入:晶体 输出:LVCMOS 电路数:1 比率 - 输入:输出:1:2 差分 - 输入:输出:无/是 频率 - 最大:400MHz 电源电压:3 V ~ 3.6 V 工作温度:0°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:Digi-Reel® 其它名称:296-6719-6 |
| LT8500EUHH#TRPBF | 功能描述:IC PWM GENERATOR 56-QFN RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:- 标准包装:28 系列:- 类型:时钟/频率发生器 PLL:是 主要目的:Intel CPU 服务器 输入:时钟 输出:LVCMOS 电路数:1 比率 - 输入:输出:3:22 差分 - 输入:输出:无/是 频率 - 最大:400MHz 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 85°C 安装类型:表面贴装 封装/外壳:64-TFSOP （0.240"，6.10mm 宽） 供应商设备封装:64-TSSOP 包装:管件 |
| LT8500IUHH#PBF | 功能描述:IC PWM GENERATOR 56-QFN RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:- 标准包装:28 系列:- 类型:时钟/频率发生器 PLL:是 主要目的:Intel CPU 服务器 输入:时钟 输出:LVCMOS 电路数:1 比率 - 输入:输出:3:22 差分 - 输入:输出:无/是 频率 - 最大:400MHz 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 85°C 安装类型:表面贴装 封装/外壳:64-TFSOP （0.240"，6.10mm 宽） 供应商设备封装:64-TSSOP 包装:管件 |
| LT8500IUHH#TRPBF | 功能描述:IC PWM GENERATOR 56-QFN RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:- 标准包装:28 系列:- 类型:时钟/频率发生器 PLL:是 主要目的:Intel CPU 服务器 输入:时钟 输出:LVCMOS 电路数:1 比率 - 输入:输出:3:22 差分 - 输入:输出:无/是 频率 - 最大:400MHz 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 85°C 安装类型:表面贴装 封装/外壳:64-TFSOP （0.240"，6.10mm 宽） 供应商设备封装:64-TSSOP 包装:管件 |
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