LD1585C_05 Datasheet, PDF (1/25 Pages) STMicroelectronics – 5A Low dropout fast response positive voltage regulator adjustable and fixed

LD1585C series
5A Low dropout fast response positive voltage regulator
adjustable and fixed
Features
■ 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
■ Guaranteed output current up to 5A
■ Output tolerance ±1% at 25°C and ±2% in full
temperature range
■ Internal power and thermal limit
■ Wide operating temperature range 0°C to
125°C
■ Package available: TO-220, D²PAK/A
■ Pinout compatibility with standard adjustable
VREG
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.
Order codes
TO-220
D²PAK/A
The most important feature of the device consist
in lower dropout voltage and very fast transient
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
10µF minimum capacitor is need for stability.
The device is supplied in TO-220, D²PAK and
D²PAK/A. On chip trimming allows the regulator to
reach a very tight output voltage tolerance, within
±1% at 25°C.
TO-220
LD1585CV50
LD1585CV
June 2007
Part number
D²PAK/A (T&R)
LD1585CD2M15R
LD1585CD2M18R
LD1585CD2M25R
LD1585CD2M28R
LD1585CD2M33R
LD1585CD2M50R
LD1585CD2M80R
LD1585CD2M90R
LD1585CD2M-R
Rev. 5
Output voltage
1.5 V
1.8 V
2.5 V
2.85 V
3.3 V
5.0 V
8.0 V
9.0 V
ADJ
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