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參數(shù)資料
| 型號(hào)： | EL7551C |
| 英文描述： | Monolithic 1 Amp DC:DC Step-down Regulator |
| 中文描述： | 單片1安培直流：DC降壓穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 5/11頁(yè) |
| 文件大?。?/td> | 260K |
| 代理商： | EL7551C |
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EL7551C - Preliminary
Monolithic 1 Amp DC:DC Step-down Regulator
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Pin Descriptions
Pin Number
Pin Name
Pin Function
1
SGND
Control circuit negative supply.
2
COSC
Oscillator timing capacitor. FOSC can be approximated by: FOSC (kHz) = 0.1843/COSC, COSC in F.
3
VDD
Control circuit positive supply.
4
PGND
Ground return of the regulator. Connected to the source of the low-side synchronous NMOS power FET.
5
PGND
Ground return of the regulator. Connected to the source of the low-side synchronous NMOS power FET.
6
VIN
Power supply input of the regulator. Connected to the drain of the high-side NMOS power FET.
7
VIN
Power supply input of the regulator. Connected to the drain of the high-side NMOS power FET.
8
EN
Chip Enable, active high. A 2A internal pull-up current enables the device if the pin is left open.
9
PGND
Ground return of the regulator.
10
VHI
Positive supply of the high-side driver.
11
LX
Inductor drive pin. High current digital output whose average voltage equals the regulator output voltage.
12
LX
Inductor drive pin. High current digital output whose average voltage equals the regulator output voltage.
13
VDRV
Positive supply of the low-side driver and input voltage for the high-side boot strap.
14
FB
Voltage feedback input. Connected to an external resistor divider between VOUT and GND. A 125nA pull-up current
forces VOUT to VS in the event that FB is floating.
15
VREF
Bandgap reference bypass capacitor. Typically 0.1F to GND.
16
PGND
Ground return of the regulator.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EL7551CU | 制造商:Intersil Corporation 功能描述:Monolithic 1Amp DC:DC Step-down Regulator |
| EL7551CU-T13 | 制造商:Intersil 功能描述:1A INTEGRTD DC:DC CN VRTR |
| EL7551CU-T7 | 制造商:Intersil 功能描述:1A INTEGRTD DC:DC CN VRTR |
| EL7551CUZ | 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 EL7551CUZ 1A INTEGR DC:DC CNVRTR RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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 |
| EL7551CUZ-T13 | 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 EL7551CUZ 1A INTEGR DC:DC CNVRTR RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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 |
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