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LDO514 Datasheet(PDF) 1 Page - STMicroelectronics |
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LDO514 Datasheet(HTML) 1 Page - STMicroelectronics |
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1/4 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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