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參數資料
| 型號： | LDO59 |
| 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: Ultra Low Noise, High PSRR, Low Power, 20mA Low Dropout Voltage Regulator |
| 中文描述： | IP庫：超低噪聲，高PSRR，低功耗，20mA的低壓差穩壓器 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 95K |
| 代理商： | LDO59 |
1/4
June 2002
IP Library: Ultra Low Noise, High PSRR, Low Power,
20mA Low Dropout Voltage Regulator
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RF REGULATOR
VERY LOW DROPOUT VOLTAGE : 60mV
ULTRA LOW OUTPUT VOLTAGE NOISE
HIGH PSRR : 70dB
LOW QUIESCENT CURRENT : 70
μ
A FULL
LOAD
NO CURRENT IN POWER DOWN MODE
SHORT CIRCUIT PROTECTION
SMALL DECOUPLING CERAMIC CAPACITOR
MOS INPUT STAGE
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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
= 1
μ
F typical) with an
equivalent serial resistance (ESR) in the range
0.02 to 0.6
is used to ensure stability.
Figure 1 :
Block Diagram
V
REF
LDO_59
OUT
IN
PWRDWN
Figure 2 :
Typical Application Circuit
1
μ
F
ESR
V
OUT
C
OUT
OUT
GND
V
IN
IN
Power Down Mode
OFF
ON
LDO_59
PWRDWN
LDO_59
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
PRODUCT PREVIEW
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