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參數(shù)資料
| 型號(hào)： | SI91872DMP-12-E3 |
| 廠商： | Vishay Intertechnology,Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 300-mA Low-Noise LDO Regulator With Error Flag and Discharge Option |
| 中文描述： | 300 - mA的低噪音LDO調(diào)節(jié)器錯(cuò)誤國(guó)旗和放電期權(quán) |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大小： | 115K |
| 代理商： | SI91872DMP-12-E3 |
Available
Si91872
Vishay Siliconix
Document Number: 72013
S-51147—Rev. F, 20-Jun-05
www.vishay.com
1
300-mA Low-Noise LDO Regulator
With Error Flag and Discharge Option
FEATURES
Ultra Low Dropout—300 mV at 300-mA Load
Low Noise—75 V
RMS
(10-Hz to 100-kHz)
Out-of-Regulation Error Flag (power good)
Shutdown Control
130- A Ground Current at 300-mA Load
Fast Start-Up (50 S)
1.5% Guaranteed Output Voltage Accuracy
400-mA Peak Output Current Capability
Uses Low ESR Ceramic Capacitors
Fast Line and Load Transient Response (
1- A Maximum Shutdown Current
Output Current Limit
Reverse Battery Protection
Built-in Short Circuit and Thermal Protection
30 s)
Output—Auto-Discharge In Shutdown Mode
Fixed 1.2, 1.8, 2.5, 2.6, 2.8, 3.0, 3.3, 5.0-V Output
Voltage Options
MLP33-5 PowerPAK Package
APPLICATIONS
Cellular Phones, Wireless Handsets
Noise-Sensitive Electronic Systems, Laptop and
Palmtop Computers
PDAs
Pagers
Digital Cameras
MP3 Player
Wireless Modem
DESCRIPTION
The Si91872 is a 300-mA CMOS LDO (low dropout) voltage
regulator. It is the perfect choice for low voltage, low power
applications. An ultra low ground current and ultra fast turn-on
make this part attractive for battery operated power systems.
The Si91872 also offers ultra low dropout voltage to prolong
battery life in portable electronics. Systems requiring a quiet
voltage source will benefit from the Si91872’s low output noise.
The Si91872 is designed to maintain regulation while
delivering 400-mA peak current, making it ideal for systems
that have a high surge current upon turn-on.
For better transient response and regulation, an active
pull-down circuit is built into the Si91872 to clamp the output
voltage when it rises beyond normal regulation. The Si91872
automatically discharges the output voltage by connecting the
output to ground through a 100- n-channel MOSFET when
the device is put in shutdown mode.
The Si91872 features reverse battery protection to limit
reverse current flow to approximately 1- A in the event
reversed battery is applied at the input, thus preventing
damage to the IC.
The Si91872 is available in both the standard and
lead (Pb)-free 5-pin MLP33 PowerPAK packages and is
specified to operate over the industrial temperature range of
40 C to 85 .
TYPICAL APPLICATION CIRCUIT
Si91872
V
IN
GND
SD
V
OUT
ERROR
V
IN
SD
V
OUT
2.2 F
51 k
ERROR
MLP33-5
2.2 F
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI91872DMP-12-T1 | 功能描述:低壓差穩(wěn)壓器 - LDO 300mA LDO 1.2V w/Error Flag 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 |
| SI91872DMP-15-T1 | 制造商:Vishay Siliconix 功能描述:REG LDO LIN FIX POS 1.5V 0.3A 5MLP33 - Tape and Reel |
| SI91872DMP-18-E3 | 功能描述:低壓差穩(wěn)壓器 - LDO 300mA LDO 1.8V w/Error Flag 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 |
| SI91872DMP-18-T1 | 功能描述:低壓差穩(wěn)壓器 - LDO 300mA LDO 1.8V w/Error Flag 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 |
| SI91872DMP-20-T1 | 制造商:Vishay Siliconix 功能描述:REG LDO LIN FIX POS 2V 0.3A 5MLP33 - Tape and Reel |
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