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參數資料
| 型號： | LDO518 |
| 廠商： | 意法半導體 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | IP Library: Low Noise, High PSRR 100mA Low Dropout Voltage Regulator |
| 中文描述： | IP庫：低噪聲，高PSRR 100mA的低壓差穩壓器 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 105K |
| 代理商： | LDO518 |
1/4
June 2002
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I
ULTRA LOW POWER REGULATOR
ULTRA LOW CONSUMPTION : 45μA FULL
LOAD
VERY LOW NOISE : 30μV
VERY LOW DROPOUT VOLTAGE : 50mV
HIGH PSRR : 60dB
SMALL DECOUPLING CERAMIC CAPACITOR
NO CURRENT IN POWER DOWN MODE
SHORT CIRCUIT PROTECTION
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TYPICAL APPLICATIONS
– Cellular and Cordless phones supplied by 1 cell
Lithium-ion battery / 3 cells Ni-MH or Ni-Cd
battery
– PDA (Personal Digital Assistant)
– Smart phone
– Portable equipment
– Supply for RF devices for cellular phone
APPLICATION NOTE
An external capacitor (C
OUT
= 2.2μF) with an
equivalent serial resistance (ESR) in the range of
0.02 to 0.6
is used for regulator stability.
Figure 1 :
Block Diagram
V
REF
LDO_518
OUT
IN
PWRDWN
STDBY
Figure 2 :
Typical Application Circuit
2.2
μ
F
ESR
V
OUT
C
OUT
OUT
GND
V
IN
IN
PWRDWN
Power Down Mode
ON
OFF
Stand-by Mode
Active Mode
STDBY
LDO_518
→
→
Stand-by Mode
→
→
LDO_518
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
PRODUCT PREVIEW
IP Library: Low Noise, High PSRR
100mA Low Dropout Voltage Regulator
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