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LD1985L-15-AF5-R Datasheet

  • LD1985L-15-AF5-R

  • VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR LOW ESR CAP. C...

  • 10頁

  • UTC-IC

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UNISONIC TECHNOLOGIES CO., LTD
LD1985
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 1碌A(chǔ) 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, C
BYP
=10nF, connected between bypass pin and GND
could reduce the noise to 30碌Vrms.
LINEAR INTEGRATED CIRCUIT
3
2
1
4
5
SOT-25
*Pb-free plating product number: LD1985L
FEATURES
*Very low dropout voltage (280mV at 150mA and 7mV at 1mA load)
*Very low quiescent current (2mA typ. at 150mA load and 80碌A(chǔ) 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
*鹵 1% tolerance version is available.(at 25鈩?
*Low output noise voltage 30碌Vrms
ORDERING INFORMATION
Order Number
Package
Normal
Lead Free Plating
LD1985-xx-AF5-R
LD1985L-xx-AF5-R
SOT-25
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
Packing
Tape Reel
www.unisonic.com.tw
Copyright 漏 2005 Unisonic Technologies Co., Ltd
1 of 10
QW-R102-021,C

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