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參數資料
| 型號： | Si9181DQ-15-T1-E3 |
| 廠商： | Vishay Intertechnology,Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Micropower 350-mA CMOS LDO Regulator With Error Flag/Power-On-Reset |
| 中文描述： | 微350毫安的CMOS LDO穩壓器在錯誤旗/上電復位 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 177K |
| 代理商： | SI9181DQ-15-T1-E3 |
Available
Si9181
Vishay Siliconix
Document Number: 71119
S-50955—Rev. F, 16-May-05
www.vishay.com
1
Micropower 350-mA CMOS LDO Regulator
With Error Flag/Power-On-Reset
FEATURES
Low 150-mV Dropout at 350-mA Load
Guaranteed 350-mA Output Current
600-mA Peak Output Current Capability
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 1.5-V, 1.8-V, 2.5-V, 2.8-V, 3.0-V, 3.3-V, 5.0-V,
or Adjustable Output Voltage Options
Other Output Voltages Available by Special Order
APPLICATIONS
Cellular Phones
Laptop and Palm Computers
PDA, Digital Still Cameras
DESCRIPTION
The Si9181 is a 350-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 Si9181 offers line/load transient response and ripple
rejection superior to that of bipolar or BiCMOS LDO regulators.
The device is designed to maintain regulation while delivering
600-mA peak current. This is useful for systems that have high
surge current upon turn-on. The Si9181 is designed to drive
the lower cost ceramic, as well as tantalum, output capacitors.
The device is guaranteed stable from maximum load current
down to 0-mA load. In addition, 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 Si9181 also includes an out-of-regulation error flag. When
the output voltage is 5% below its nominal output voltage, the
error flag output goes low. 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 Si9181 is available in both standard and lead (Pb)-free
packages.
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
Si9181
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
Si9181
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
Si9181
POR
ON/OFF
0.1 F
0.1 F
1 M
SD
SD
相關PDF資料 |
PDF描述 |
|---|---|
| Si9183DB | High-Performance, Size Saving 150-mA CMOS LDO Regulator |
| Si9183DT-15-T1 | High-Performance, Size Saving 150-mA CMOS LDO Regulator |
| Si9183DT-18-T1 | High-Performance, Size Saving 150-mA CMOS LDO Regulator |
| Si9183DT-20-T1 | High-Performance, Size Saving 150-mA CMOS LDO Regulator |
| Si9183DT-25-T1 | High-Performance, Size Saving 150-mA CMOS LDO Regulator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SI9181DQ-18-T1 | 功能描述:低壓差穩壓器 - LDO 350mA 1.8V 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 負載調節:0.3 % 輸出端數量: 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 |
| SI9181DQ-18-T1-E3 | 功能描述:低壓差穩壓器 - LDO 350mA 1.8V 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 負載調節:0.3 % 輸出端數量: 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 |
| SI9181DQ-20-T1 | 功能描述:低壓差穩壓器 - LDO 350mA 2.0V 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 負載調節:0.3 % 輸出端數量: 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 |
| SI9181DQ-20-T1-E3 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Micropower 350-mA CMOS LDO Regulator With Error Flag/Power-On-Reset |
| SI9181DQ-25-T1 | 功能描述:低壓差穩壓器 - LDO 350mA 2.5V 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 負載調節:0.3 % 輸出端數量: 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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