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LDO514 Datasheet(PDF) 1 Page - STMicroelectronics

Part No. LDO514
Description  IP Library: High PSRR, Very Low power, 200mA Low Dropout Voltage Regulator
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LDO514 Datasheet(HTML) 1 Page - STMicroelectronics

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June 2002
s RF REGULATOR
s VERY LOW DROPOUT VOLTAGE : 50mV
s VERY LOW CONSUMPTION : 320µA FULL
LOAD
s VERY GOOD TRANSIENT BEHAVIOUR : 1mV
s OUTPUT CURRENT : 200mA
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_514
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_514
→
→
Stand-by Mode
→
→
LDO_514
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: High PSRR, Very Low power,
200mA Low Dropout Voltage Regulator


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