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參數(shù)資料
| 型號： | XC9505B092A |
| 廠商： | TOREX SEMICONDUCTOR LTD. |
| 英文描述： | 2ch. Step-Down / Inverting DC/DC Controller ICs |
| 中文描述： | 2通道。降壓/反向DC / DC控制器芯片 |
| 文件頁數(shù)： | 13/47頁 |
| 文件大?。?/td> | 705K |
| 代理商： | XC9505B092A |
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Note on Use
1. Checking for Intermittent Oscillation
The XC9505 series is subject to intermittent oscillation in the proximity of the maximum duty if the step-down ratio is low (e.g.,
from 4.2 V to 3.3 V) or a heavy load is applied where the duty ratio becomes high. Check waveforms at EXT under your
operating conditions. A remedy for this problem is to raise the inductance of coil L or increase the load capacitance CL.
2. PWM/PFM Automatic Switching
If PWM/PFM automatic switching control is selected and the step-down ratio is high (e.g., from 10.0 V to 1.0 V), the control mode
remains in PFM setting over the whole load range, since the duty ratio under continuous-duty condition is smaller than the PFM
duty ratio of the XC9505series. The output voltage's ripple voltage becomes substantially high under heavy load conditions, with
the XC9505 series appearing to be producing an abnormal oscillation. If this operation becomes a concern, set pins PWM to
High to set the control mode to PWM setting. For use under the above-mentioned condition, measured data of PWM/PFM
automatic switching control shown on the data sheets are available up to IOUT = 100 mA.
3. Ratings
Use the XC9505 series and peripheral components within the limits of their ratings.
XC9505 Series
2ch. Step-Down / Inverting DC/DC Controller ICs
13
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XC9505B093A | 2ch. Step-Down / Inverting DC/DC Controller ICs |
| XC9505B095A | 2ch. Step-Down / Inverting DC/DC Controller ICs |
| XC9508_1 | Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator in Series Plus Voltage Detector |
| XC9509A033AL | Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator in Parallel Plus Voltage Detector |
| XC9509A033AR | Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator in Parallel Plus Voltage Detector |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XC9505B093A | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:2ch. Step-Down / Inverting DC/DC Controller ICs |
| XC9505B095A | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:2ch. Step-Down / Inverting DC/DC Controller ICs |
| XC9508 | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator plus Voltage Detector |
| XC9508_1 | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator in Series Plus Voltage Detector |
| XC9508AXXXXX | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator plus Voltage Detector |
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