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LDO58 数据表(PDF) 1 Page - STMicroelectronics

部件名 LDO58
功能描述  IP Library: Ultra Low Noise, Low power, 100mA Low Dropout Voltage Regulator
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LDO58 数据表(HTML) 1 Page - STMicroelectronics

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June 2002
IP Library: Ultra Low Noise, Low power,
100mA Low Dropout Voltage Regulator
s RF REGULATOR
s VERY LOW DROPOUT VOLTAGE : 50mV
s ULTRA LOW OUTPUT NOISE
s HIGH OUTPUT CURRENT : 100mA
s LOW QUIESCENT CURRENT : 110
µA
s HIGH PSRR : 65dB
s NO CURRENT IN POWER DOWN MODE
s SHORT CIRCUIT PROTECTION
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 (COUT = 1µF) with an
equivalent serial resistance (ESR) in the range
0.02 to 0.6
Ω is used for regulator stability.
Figure 1 : Block Diagram
?
VREF
?
?
?
LDO_58
OUT
IN
PWRDWN
STDBY
Figure 2 : Typical Application Circuit
1
µF
ESR
VOUT
COUT
?
?
OUT
GND
?
?
?
VIN
IN
PWRDWN
Power Down Mode
OFF
ON
Stand-by Mode
STDBY
Active Mode
LDO_58
Stand-by Mode
LDO_58
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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