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UTCLD1117A Datasheet(PDF) 1 Page - Unisonic Technologies

Part No. UTCLD1117A
Description  LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
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Maker  UTC [Unisonic Technologies]
Homepage  http://www.utc-ic.com
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UTCLD1117/A LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R102-006,H
LOW DROP FIXED AND
ADJUSTABLE POSITIVE VOLTAGE
REGULATORS
DESCRIPTION
The UTC LD1117/A is a LOW DROP Voltage Regulator
able to provide up to 0.8/1.0A of Output Current, available
even in adjustable version (Vref=1.25V). Concerning fixed
versions, are offered the following Output Voltages: 1.8V,
2.5V, 2.85V, 3.0V, 3.3V and 5.0V. The 2.85V type is ideal for
SCSI-2 lines active termination. The device is supplied in:
SOT-223, TO-252, TO-263, TO-263-3, SOP-8 and TO-220.
The SOT-223, TO-263, TO-263-3 and TO-252 surface mount
packages optimize the thermal characteristics even offering a
relevant space saving effect. High efficiency is assured by
NPN pass transistor. In fact in the case, unlike than PNP one,
the Quiescent Current flows mostly into the load. Only a very
common 10
µF minimum capacitor is needed for stability. On
chip trimming allows the regulator to reach a very tight output
voltage tolerance, within
±1% at 25°C. The ADJUSTABLE
LD1117/A is pin to pin compatible with the other standard
Adjustable
voltage
regulators
maintaining
the
better
performances in terms of Drop and Tolerance.
FEATURES
*Low dropout voltage (1V Typ.)
*2.85V device performances are suitable for SCSI-2 active
termination
*Output current up to 0.8/1.0A
*Fixed output voltage of: 1.8V,2.5V, 2,85V, 3.0V, 3.3V, 5.0V
*Adjustable version availability (Vref=1.25V)
*Internal current and thermal limit
*Available in
±1%(at 25°C) and 2% in all temperature range
*Supply voltage rejection: 75dB (TYP)
*Temperature range: 0
°C to 125°C
SOP-8
SOT-223
1
2
3
1
TO-220
TO-252
TO-263
1
1
1
TO-263-3
SOP-8
1: GND; 2,3,6,7: Vout;
4: Vin;
5,8: NC




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