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LDO59 Datasheet(PDF) 1 Page - STMicroelectronics |
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LDO59 Datasheet(HTML) 1 Page - STMicroelectronics |
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1/4 June 2002 IP Library: Ultra Low Noise, High PSRR, Low Power, 20mA Low Dropout Voltage Regulator s RF REGULATOR s VERY LOW DROPOUT VOLTAGE : 60mV s ULTRA LOW OUTPUT VOLTAGE NOISE s HIGH PSRR : 70dB s LOW QUIESCENT CURRENT : 70 µA FULL LOAD s NO CURRENT IN POWER DOWN MODE s SHORT CIRCUIT PROTECTION s SMALL DECOUPLING CERAMIC CAPACITOR s MOS INPUT STAGE 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 typical) with an equivalent serial resistance (ESR) in the range 0.02 to 0.6 Ω is used to ensure stability. Figure 1 : Block Diagram ? VREF ? ? LDO_59 OUT IN PWRDWN Figure 2 : Typical Application Circuit 1 µF ESR VOUT COUT ? ? OUT GND ? ? VIN 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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