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參數(shù)資料
| 型號(hào)： | Si91860 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | 400-mA Smart Regulator for Network Interface Card(用于網(wǎng)絡(luò)接口卡的400mA智能穩(wěn)壓器) |
| 中文描述： | 400毫安智能調(diào)節(jié)器的網(wǎng)絡(luò)接口卡（用于網(wǎng)絡(luò)接口卡的400mA的智能穩(wěn)壓器） |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 80K |
| 代理商： | SI91860 |
Si91860
Vishay Siliconix
New Product
Document Number: 71340
S-02482—Rev. A, 06-Nov-00
www.vishay.com
1
400-mA Smart Regulator for Network Interface Card
Single Fixed 3.3-V Output
Linear Regulator for Dual Power Inputs
Auxilliary Input Can Be Bypassed
Automatically Switches Between Linear Regulator
and Bypass Mode
Linear Regulator: 3.3-V
Current
Linear Regulator: 600-mA Peak Output Current
Low Bypass Switch Drop: <55-mV Drop at 150 mA
Built-in Short Circuit and Thermal Shutdown
Protection
3% Output at 400-mA
Low Supply Current
SOIC-8 Package
Network Interface Cards (NIC)
PCMCIA Cards
Cardbus
Desktop Computers/Workstations
The Si91860 provides a constant 3.3-V output with multiple
inputs. This function is required in many power interface
applications, such as the Network Interface Card (NIC). The
Si91860 is offered in small SOIC-8 package with up to 2-W
Power handling capability. The complete application circuit
uses only four external components.
The PCI Card has a 3.3-V Chipset while the PCI bus has two
independent 5-V sources. When needed, the two 5-V sources
are available from the PCI bus or directly from the
motherboard—normally 5 V
IN
and standby 5 V
SB
. The
internal regulator steps down from either of the 5-V supplies
to 3.3 V. A 200-m
power switch is integrated to connect the
3.3-V
AUX
input to the output. The power drawn priority is 5 V
IN
> 5 V
SB
> 3.3 V
AUX
, where the selection is done internally and
automatically by the Si91860. The power handling capability
is as such as to carry at least 400-mA continuous load current
for any power input condition.
In order to satisfy the stringent ambient temperature
requirements in many applications, the Si91860 is rated for the
industrial temperature range of –40 C to 85 C.
Regulator
and
Control
3.3 V
OUT
5 V
SB
5 V
IN
3.3 V
AUX
GND
Si91860
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| SI91860DB | 功能描述:低壓差穩(wěn)壓器 - LDO SI91860 Demo Board RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| SI91860DY | 功能描述:低壓差穩(wěn)壓器 - LDO 400mA 3.3V RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| SI91860DY-E3 | 功能描述:低壓差穩(wěn)壓器 - LDO 400mA 3.3V Smart LDO w/Bypass RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| SI91860DY-T1 | 功能描述:低壓差穩(wěn)壓器 - LDO 400mA 3.3V Smart LDO w/Bypass RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| SI91860DY-T1-E3 | 功能描述:低壓差穩(wěn)壓器 - LDO 400mA 3.3V Smart LDO w/Bypass RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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