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LD1585CXX28 Datasheet

  • LD1585CXX28

  • 5A LOW DROPOUT FAST RESPONSE POSITIVE VOLTAGE REGULATOR ADJU...

  • 463.08KB

  • STMicroelectronics   STMicroelectronics

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LD1585C
SERIES
5A LOW DROPOUT FAST RESPONSE
POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED
s
s
s
s
s
s
s
s
s
TYPICAL DROPOUT 1.2V
FAST TRANSIENT RESPONSE
THREE TERMINAL ADJUSTABLE OR FIXED
OUTPUT VOLTAGE 1.5V 1.8V, 2.5V, 2.85V,
3.3V, 5V, 8V, 9V, 12V.
GUARANTEED OUTPUT CURRENT UP TO
5A
OUPUT TOLERANCE
卤1%
AT 25掳C AND
卤2%
IN FULL TEMPERATURE RANGE
INTERNAL POWER AND THERMAL LIMIT
WIDE OPERATING TEMPERATURE RANGE
0掳C TO 125掳C
PACKAGE AVAILABLE : TO-220, D
2
PAK,
D
2
PAK/A
PINOUT COMPATIBILITY WITH STANDARD
ADJUSTABLE VREG
TO-220
D
2
PAK
D
2
PAK/A
DESCRIPTION
The LD1585C is a LOW DROP Voltage Regulator
able to provide up to 5A of Output Current.
Dropout is guaranteed at a maximum of 1.4V at
the maximum output current, decreasing at lower
loads. The device has been improved to be
utilized in low voltage applications where transient
response and minimum input voltage are critical.
The most important feature of the device consist in
lower dropout voltage and very fast transient
SCHEMATIC DIAGRAM
response. A 2.85V output version is suitable for
SCSI-2 active termination. Unlike PNP regulators,
where a part of the output current is wasted as
quiescent current, the LD1585C quiescent current
flows into the load, so increase efficiency. Only a
10碌F minimum capacitor is need for stability.
The device is supplied in TO-220, D
2
PAK and
D
2
PAK/A. On chip trimming allows the regulator to
reach a very tight output voltage tolerance, within
卤1% at 25掳C.
September 2003
1/17

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