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參數資料
| 型號： | Si91821DH-30-T1-E3 |
| 廠商： | Vishay Intertechnology,Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Micropower 300-mA CMOS LDO Regulator With Error Flag |
| 中文描述： | 微300毫安的CMOS LDO穩(wěn)壓器國旗錯誤 |
| 文件頁數： | 4/10頁 |
| 文件大小： | 136K |
| 代理商： | SI91821DH-30-T1-E3 |
Si91821
Vishay Siliconix
www.vishay.com
4
Document Number: 71614
S-51147–Rev. E, 20-Jun-05
TIMING WAVEFORMS
SD
V
OUT
ERROR
Figure 4.
Timing Diagram for Power-Up
t
ON
t
DELAY
V
NOM =
0.95 V
NOM
t
DELAY
V
IH
V
IL
PIN CONFIGURATION
v
OUT
ERROR
GND
C
NOISE
V
OUT
SET
MSOP-8
Top View
v
IN
SD
1
2
3
4
8
7
6
5
PIN DESCRIPTION
Pin Number
Name
Function
1, 4
V
OUT
V
IN
Output voltage. Connect C
OUT
between this pin and ground.
Input supply pin. Bypass this pin with a 2.2- F ceramic or tantalum capacitor to ground.
2
3
GND
Ground pin. Local ground for C
NOISE
and C
OUT
.
5
SET
For fixed output voltage versions, this pin could be connected to GND. For adjustable output voltage version, this
voltage feedback pin sets the output voltage via an external resistor divider.
6
C
NOISE
Noise bypass pin. For low noise applications, a 0.01- F or larger ceramic capacitor should be connected from this pin
to ground.
7
SD
By applying less than 0.4 V to this pin, the device will be turned off. Connect this pin to V
IN
if unused.
8
ERROR
This open drain output is an error flag output which goes low when V
OUT
drops 5% below its nominal voltage.
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| SI91821DH-33-T1 | 功能描述:低壓差穩(wěn)壓器 - LDO 300mA 3.3V CMOS LDO 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):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 |
| SI91821DH-33-T1-E3 | 功能描述:低壓差穩(wěn)壓器 - LDO 300mA 3.3V CMOS LDO 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):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 |
| SI91821DH-50-T1 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Micropower 300-mA CMOS LDO Regulator With Error Flag |
| SI91821DH-50-T1-E3 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Micropower 300-mA CMOS LDO Regulator With Error Flag |
| SI91821DH-AD-T1 | 功能描述:低壓差穩(wěn)壓器 - LDO 300mA Adj CMOS LDO 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):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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