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參數(shù)資料
| 型號： | L6716 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, 225 kHz SWITCHING FREQ-MAX, QCC48 |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, ROHS COMPLIANT, VFQFP-48 |
| 文件頁數(shù)： | 50/57頁 |
| 文件大?。?/td> | 829K |
| 代理商： | L6716 |
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Embedding L6716 - based VR
L6716
54/57
Doc ID 14521 Rev 3
25
Embedding L6716 - based VR
When embedding the VRD into the application, additional care must be taken since the
whole VRD is a switching DC/DC regulator and the most common system in which it has to
work is a digital system such as MB or similar. In fact, latest MB has become faster and
powerful: high speed data bus are more and more common and switching-induced noise
produced by the VRD can affect data integrity if not following additional layout guidelines.
Few easy points must be considered mainly when routing traces in which high switching
currents flow (high switching currents cause voltage spikes across the stray inductance of
the trace causing noise that can affect the near traces):
Keep safe guarding distance between high current switching VRD traces and data buses,
especially if high-speed data bus to minimize noise coupling.
Keep safe guard distance or filter properly when routing bias traces for I/O sub-systems that
must walk near the VRD.
Possible causes of noise can be located in the PHASE connections, MOSFET gate drive
and Input voltage path (from input bulk capacitors and HS drain). Also PGND connections
must be considered if not insisting on a power ground plane. These connections must be
carefully kept far away from noise-sensitive data bus.
Since the generated noise is mainly due to the switching activity of the VRM, noise
emissions depend on how fast the current switches. To reduce noise emission levels, it is
also possible, in addition to the previous guidelines, to reduce the current slope by properly
tuning the HS gate resistor and the PHASE snubber network.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| L6716TR | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 2/3/4 phase CNTRL Embedded Drivers RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6717 | 制造商:STMicroelectronics 功能描述:High-Efficiency Hybrid AM2r2 Controller 48-Pin VFQFPN Tray 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Trays 制造商:STMicroelectronics 功能描述:High EFF Hybrid CTRL I2C Embedded Driver |
| L6717A | 制造商:STMicroelectronics 功能描述:CPU Power Supply Controller Tray 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Trays 制造商:STMicroelectronics 功能描述:High EFF Hybrid CTRL I2C Embedded Driver |
| L6717ATR | 制造商:STMicroelectronics 功能描述:CPU Power Supply Controller T/R 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Tape and Reel 制造商:STMicroelectronics 功能描述:High EFF Hybrid CTRL I2C Embedded Driver |
| L6717TR | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 High-Efficienc AM2r2 Hybrid Controller RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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