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參數(shù)資料
| 型號(hào)： | EN5335QI |
| 廠商： | ENPIRION INC |
| 元件分類： | 穩(wěn)壓器 |
| 中文描述： | SWITCHING REGULATOR, 5000 kHz SWITCHING FREQ-MAX, QCC44 |
| 封裝： | ROHS COMPLIANT, QFN-44 |
| 文件頁(yè)數(shù)： | 2/13頁(yè) |
| 文件大?。?/td> | 266K |
| 代理商： | EN5335QI |
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00846
06/01/2010
Rev: F
EN5335QI
Enpirion 2010 all rights reserved, E&OE
www.enpirion.com
10
point by about 50% by connecting a 7.5k
resistor between ROCP (pin 27) and GND. The
typical voltage at the ROCP pin is 0.75V.
In some cases, such as the start-up of FPGA
devices, it is desirable to blank the over-current
protection feature. In order to disable over-
current protection, the ROCP pin should be tied
to any voltage between 2.5V and PVIN.
Over-Voltage Protection
When the output voltage exceeds 120% of the
programmed output voltage, the PWM operation
stops, the lower N-MOSFET is turned on and the
POK signal goes low. When the output voltage
drops below 95% of the programmed output
voltage, normal PWM operation resumes and
POK returns to its high state.
Thermal Overload Protection
Thermal shutdown will disable operation once
the Junction temperature exceeds approximately
150C. Once the junction temperature drops by
approx 25C, the converter will re-start with a
normal soft-start.
Input Under-voltage Lock-out
Circuitry is provided to ensure that when the
input voltage is below the specified voltage
range, the converter will not start-up. Circuits for
hysteresis, input de-glitch and output leading
edge blanking are included to ensure high noise
immunity and prevent false tripping.
Compensation
The
EN5335QI
is
internally
compensated
through the use of a type 3 compensation
network and is optimized for use with about 50F
of output capacitance and will provide excellent
loop bandwidth and transient performance for
most applications. (See the section on Capacitor
Selection for details on recommended capacitor
types.) Voltage mode operation provides high
noise immunity at light load.
In some cases modifications to the compensation
may be required. For more information, contact
Enpirion Applications Engineering support.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EN5335QI-E | 功能描述:電源管理IC開發(fā)工具 3AMP MOD INT IND VID EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| EN5336QI | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 3AMP BUCK CONVERTER 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(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| EN5336QI-E | 功能描述:電源管理IC開發(fā)工具 3AMP MOD INT INDUC EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| EN5337QI | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 3AMP BUCK CONVERTER DC-DC Conv, Int Ind RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| EN5337QI-E | 功能描述:電源管理IC開發(fā)工具 Eval Board EN5337QI 3A Sync. Buck Convtr RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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