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LD1985L-32-AF5-R Datasheet(PDF) 1 Page - Unisonic Technologies |
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LD1985L-32-AF5-R Datasheet(HTML) 1 Page - Unisonic Technologies |
1 / 10 page UNISONIC TECHNOLOGIES CO., LTD LD1985 LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 10 Copyright © 2005 Unisonic Technologies Co., Ltd QW-R102-021,C VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR LOW ESR CAP. COMPATIBLE, WITH INHIBIT FUNCTION DESCRIPTION The UTC LD1985 is a 150mA fixed output voltage regulator with ultra low drop voltage and the low quiescent current. It is specially designed for low noise, low power applications and in battery powered systems, such as Cell phones, palmtop laptop computer, PDAs, DSC. The quiescent current in sleep mode is less than 1µA when INHIBIT pin is pulled low. Due to Shutdown Logic Control Function is available on pin 3 (TTL compatible), when the device is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption Besides, an external capacitor, CBYP=10nF, connected between bypass pin and GND could reduce the noise to 30µVrms. FEATURES *Very low dropout voltage (280mV at 150mA and 7mV at 1mA load) *Very low quiescent current (2mA typ. at 150mA load and 80µA at no load) *Output current up to 150mA *Logic controlled electronic shutdown *Output voltage of 1.5, 1.8, 2.5, 2.8, 2.85, 3, 3.1, 3.2, 3.3, 3.5, 3.6, 3.8, 4, 4.7, 5.0V *Internal current and thermal limit *± 1% tolerance version is available.(at 25℃) *Low output noise voltage 30µVrms SOT-25 4 5 3 2 1 *Pb-free plating product number: LD1985L ORDERING INFORMATION Order Number Normal Lead Free Plating Package Packing LD1985-xx-AF5-R LD1985L-xx-AF5-R SOT-25 Tape Reel Note: xx: Output Voltage, refer to Marking Information. LD1985L-xx-AF5-R (1)Packing Type (2)Package Type (3)Output Voltage Code (4)Lead Plating (1) R: Tape Reel (2) AF5: SOT-25 (3) xx: refer to Marking Information (4) L: Lead Free Plating, Blank: Pb/Sn |
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