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參數(shù)資料
| 型號： | SI9185DMP-AD-T1 |
| 廠商： | Vishay Intertechnology,Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Micropower 500-mA CMOS LDO Regulator |
| 中文描述： | 微500毫安的CMOS LDO穩(wěn)壓器 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 138K |
| 代理商： | SI9185DMP-AD-T1 |
Si9185
Vishay Siliconix
Document Number: 71765
S-20641—Rev. B, 06-May-02
www.vishay.com
1
Micropower 500-mA CMOS LDO Regulator
With Error Flag/Power-On-Reset
FEATURES
Input Voltage 2 V to 6 V
Low 150-mV Dropout at 500-mA Load
Guaranteed 500-mA Output Current
Uses Low ESR Ceramic Output Capacitor
Fast Load and Line Transient Response
Only 100- V(rms) Noise With Noise Bypass Capacitor
1- A Maximum Shutdown Current
Built-in Short Circuit and Thermal Protection
Out-Of-Regulation Error Flag (Power Good or POR)
Fixed 1.215-V, 1.5-V, 1.8-V, 2.0-V, 2.5-V, 2.8-V, 2.9-V,
3.0-V, 3.3-V, 5.0-V, or Adjustable Output Voltage
Options
Other Output Voltages Available by Special Order
1.1-W Power Dissipation
Thin, Thermally Enhanced MLP33 PowerPAK
Package
APPLICATIONS
Laptop and Palm Computers
Desktop Computers
Cellular Phones
PDA, Digital Still Cameras
DESCRIPTION
The Si9185 is a 500-mA CMOS LDO (low dropout) voltage
regulator. The device features ultra low ground current and
dropout voltage to prolong battery life in portable electronics.
The Si9185 offers line/load transient response and ripple
rejection superior to that of bipolar or BiCMOS LDO regulators,
and is designed to drive lower cost ceramic, as well as
tantalum, output capacitors. An external noise bypass
capacitor connected to the device’s C
NOISE
pin will lower the
LDO’s output noise for low noise applications. The Si9185 also
includes an out-of-regulation error flag. If a capacitor is
connected to the device’s delay pin, the error flag output pin will
generate a delayed power-on-reset signal. The device is
guaranteed stable from maximum load current down to 0-mA
load.
The Si9185 is available in a MLP33 PowerPAK package. This
allows enhanced heat transfer to the PC board. The Si9185 is
specified to operate over the industrial temperature range of
–40 C to +85 C.
TYPICAL APPLICATIONS CIRCUITS
FIGURE 1.
Fixed Output
FIGURE 2.
Adjustable Output
FIGURE 3.
Low Noise, Full Features Application
C
NOISE
SD
1
8
DELAY
ERROR
2
7
GND
SENSE/ADJ
3
6
V
IN
V
OUT
4
5
GND
V
IN
2.2 F
2.2 F
V
OUT
Si9185
C
NOISE
1
8
DELAY
ERROR
2
7
GND
SENSE/ADJ
3
6
V
IN
V
OUT
4
5
GND
V
IN
2.2 F
2.2 F
V
OUT
Si9185
C
NOISE
1
8
DELAY
ERROR
2
7
GND
SENSE/ADJ
3
6
V
IN
V
OUT
4
5
GND
V
IN
2.2 F
2.2 F
V
OUT
Si9185
POR
ON/OFF
0.1 F
0.1 F
1 M
SD
SD
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SI9185DMP-AD-T1-E3 | 功能描述:低壓差穩(wěn)壓器 - LDO Reg LDO Lin Adj Pos 1.215 to 5V 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| SI91860 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:400-mA Smart Regulator for Network Interface Card |
| 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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