LD1985_11 Datasheet, PDF (1/10 Pages) Unisonic Technologies – VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR

UNISONIC TECHNOLOGIES CO., LTD
LD1985
LINEAR INTEGRATED CIRCUIT
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. The
ultra low drop voltage and the low quiescent current make them
particularly suitable for low noise, low power applications, and in battery
powered systems. In sleep mode quiescent current is less than 1μA
when INHIBIT pin is pulled low. Shutdown Logic Control Function is
available on pin 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.
An external capacitor, C_BYP=10nF, connected between bypass pin
and GND reduce the noise to 30μVrms.
Typical application is in cellular phone, palmtop laptop computer,
personal digital assistant (PDA), personal stereo, camcorder and
camera.
„ 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, 5V
* Internal Current and Thermal Limit
* Low Output Noise Voltage 30μVrms
„ ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
LD1985L-xx-AF5-R
LD1985G-xx-AF5-R
Note: xx: Output Voltage, refer to Marking Information.
Package
SOT-25
LD1985L-xx-AF5-R
(1)Packing Type
(2)Package Type
(3)Output Voltage Code
(4)Lead Free
(1) R: Tape Reel
(2) AF5: SOT-25
(3) xx: Refer to Marking Information
(4) G: Halogen Free, L: Lead Free
Packing
Tape Reel
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