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LD2985 Datasheet Preview

LD2985 Datasheet

VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR LOW ESR CAP. COMPATIBLE

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UNISONIC TECHNOLOGIES CO., LTD
LD2985
LINEAR INTEGRATED CIRCUIT
VERY LOW DROP AND LOW
NOISE VOLTAGE REGULATOR
LOW ESR CAP. COMPATIBLE,
WITH INHIBIT FUNCTION
DESCRIPTION
The UTC LD2985 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, CBYP=10nF, connected between bypass
pin and GND reduce the noise to 30μVrms.
Typical applications are 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
* 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
LD2985G-xx-AF5-R
Note: xx: Output Voltage, refer to Marking Information.
Package
SOT-25
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2016 Unisonic Technologies Co., Ltd
1 of 15
QW-R102-024.L




UTC

LD2985 Datasheet Preview

LD2985 Datasheet

VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR LOW ESR CAP. COMPATIBLE

No Preview Available !

LD2985
MARKING INFORMATION
PACKAGE
SOT-25
VOLTAGE
1.5V
1.8V
2.5V
2.8V
2.85V
3.0V
3.1V
3.2V
3.3V
3.5V
3.6V
3.8V
4.0V
4.7V
5.0V
VOLTAGE CODE
A5
A8
B5
B8
BJ
C0
C1
C2
C3
C5
C6
C8
D0
D7
E0
PIN CONFIGURATION
LINEAR INTEGRATED CIRCUIT
MARKING
PIN DESCRIPTION
PIN NO.
1
2
3
4
5
PIN NAME
DESCRIPTION
IN Input port
GND Ground pin
INHIBIT
Control switches ON/OFF. Inhibit is not internally pulled-up; it cannot be left floating.
Disable the device when connected to GND or to a positive voltage less than 0.18V
Bypass
Bypass pin: Capacitor to be connected to GND in order to improve the thermal noise
performances.
OUT Output port
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 15
QW-R102-024.L


Part Number LD2985
Description VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR LOW ESR CAP. COMPATIBLE
Maker UTC
Total Page 15 Pages
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