- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄375321 > AN734 (Vishay Intertechnology,Inc.) Design Guidelines for the Low-Noise Low-Dropout Regulator Si9181 PDF資料下載
參數(shù)資料
| 型號(hào)： | AN734 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | Design Guidelines for the Low-Noise Low-Dropout Regulator Si9181 |
| 中文描述： | 為設(shè)計(jì)準(zhǔn)則低噪聲低壓差穩(wěn)壓器Si9181 |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大?。?/td> | 47K |
| 代理商： | AN734 |
AN734
Vishay Siliconix
Document Number: 71337
31-Oct-00
www.vishay.com
1
Design Guidelines for the Low-Noise
Low-Dropout Regulator—Si9181
Nitin Kalje
INTRODUCTION
This application note discusses the operation and features of
the Si9181, a 350-mA CMOS low-dropout (LDO), low-noise
voltage regulator. Providing very low ground current to extend
battery life, the Si9181 also offers superior line/load transient
response and ripple rejection. Designed to maintain regulation
while delivering currents from 0 mA to 600 mA, the Si9181
regulator also features an “out of regulation” error flag signal
and ON/OFF control input for complete shutdown.
The Si9181 was designed for applications requiring a regu-
lated voltage equal to or less than the voltage of the source or
battery, and requiring very low output noise. Such applications
include digital signal processors, baseband circuits, mixers, A-
to-D converters, or intermediate amplifiers. The Si9181’s LDO
characteristics are determined by its voltage, ground current,
power-dissipation, peak current capability, noise and ripple re-
jection specifications. The Si9181 is designed to meet the cri-
teria for high quality on each of these determinants, and is
suitable for portable and noise–sensitive appliances such as
cellular phones.
–
+
C
IN
2.2 F
V
IN
4
6
SD
8
ON
OFF
3
GND
ADJ
–
+
60 mV
5% V
REF
+
1.215 V
V
REF
–
1
C
NOISE
–
+
+
2.2 A
To V
IN
5
C
2.2 F
2
7
C
0.1 F
R
EXT
V
OUT
ERROR
FIGURE 1.
350-mA CMOS LDO Regulator (Adjustable Output)
6 M
R
2
R
1
V
ADJ
U1
U2
U3
Q1
Q2
C
NOISE
S19181
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AN7352 | Playback Pre-amplifier for Stereo Cassette Deck |
| AN7352S | Playback Pre-amplifier for Stereo Cassette Deck |
| AN7354 | WIRE, 18 GA, WHT, STRD, UL1015, 105C |
| AN7354SC | CABLE ASSEMBLY; SMA MALE TO SMA MALE RIGHT ANGLE; 50 OHM, RG401/U (.250" BARE COPPER); 6" CABLE LENGTH; ; **SEMI-RIGID CABLE, PLEASE LIMIT CUSTOM LENGTHS TO 60 INCHES OR LESS!! ** |
| AN7356NSC | Recording and playback equalizer amp. IC for Hi-Fi cassette deck |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AN7345K | 制造商:Panasonic Industrial Company 功能描述:IC |
| AN7348K | 制造商:Panasonic Industrial Company 功能描述:IC |
| AN735014 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| AN735-12 | 制造商:AN# - MILITARY 功能描述: |
| AN735-14 | 制造商:AN# - MILITARY 功能描述: |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。