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LD2981ABM36TR Datasheet

  • LD2981ABM36TR

  • VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT

  • 17頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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LD2981
SERIES
ULTRA LOW DROP VOLTAGE REGULATORS WITH INHIBIT
LOW ESR OUTPUT CAPACITORS COMPATIBLE
s
s
s
s
s
s
s
s
s
s
s
s
STABLE WITH LOW ESR CERAMIC
CAPACITORS
ULTRA LOW DROPOUT VOLTAGE (0.17V
TYP. AT 100mA LOAD, 7mV TYP. AT 1mA
LOAD)
VERY LOW QUIESCENT CURRENT (80碌A
TYP. AT NO LOAD IN ON MODE; MAX 1碌A
IN OFF MODE)
GUARANTEED OUTPUT CURRENT UP TO
100mA
LOGIC-CONTROLLED ELECTRONIC
SHUTDOWN
OUTPUT VOLTAGE OF 1.5; 1.8; 2.5; 2.85;
3.0; 3.2; 3.3; 3.6; 3.8; 4.0; 4.7; 4.85; 5.0V
INTERNAL CURRENT AND THERMAL LIMIT
鹵 0.75% TOLERANCE OUTPUT VOLTAGE
AVAILABLE (A VERSION)
OUTPUT LOW NOISE VOLTAGE 160碌VRMS
TEMPERATURE RANGE: -40 TO 125擄C
SMALLEST PACKAGE SOT23-5L AND
SOT-89
FAST DYNAMIC RESPONSE TO LINE AND
LOAD CHANGES
SOT23-5L
SOT-89
DESCRIPTION
The LD2981 series are 100mA fixed-output
voltage regulator. The low drop-voltage and the
SCHEMATIC DIAGRAM
ultra low quiescent current make them suitable for
low noise, low power applications and in battery
powered systems.
The quiescent current in sleep mode is less than
1碌A when INHIBIT pin is pulled low. Shutdown
Logic Control function is available on pin n.3 (TTL
compatible). This means that 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. The LD2981 is designed to
work with low ESR ceramic capacitor. Typical
applications are in cellular phone, palmtop/laptop
computer, personal digital assistant (PDA),
personal stereo, camcorder and camera.
September 2003
1/17

LD2981ABM36TR 產品屬性

  • STMicroelectronics

  • 低壓降 (LDO) 調節(jié)器

  • 16 V

  • 3.6 V

  • 0.003 V at 0 A

  • 0.1 A

  • 1

  • Fixed

  • + 125 C

  • SMD/SMT

  • SOT-23

  • 0.08 mA

  • 2.5 V

  • 0.014 % / V

  • - 40 C

  • Reel

  • 3000

  • 0.75 %

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