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KD1084XX Datasheet(PDF) 1 Page - STMicroelectronics

Part No. KD1084XX
Description  5 A low drop positive voltage regulator adjustable and fixed
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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KD1084XX Datasheet(HTML) 1 Page - STMicroelectronics

 
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December 2007
Rev 7
1/22
22
KD1084xx
KD1084Axx
5 A low drop positive voltage regulator adjustable and fixed
Features
Typical dropout 1.3 V (at 5 A)
Three terminal adjustable or fixed output
voltage 1.8 V, 2.5 V, 3.3 V.
Guaranteed output current up to 5 A
Output tolerance ±1% at 25 °C and ±2% in full
temperature range for the "A" version
Output tolerance ±2% at 25 °C and ±3% In full
temperature range internal power and thermal
limit
Wide operating temp. range -40 °C to 125 °C
Package available: TO-220, D2PAK, DPAK
Pinout compatibility with standard adjustable
VREG
Description
The KD1084xx is a LOW DROP voltage regulator
able to provide up to 5 A of output current.
Dropout is guaranteed at a maximum of 1.5 V at
the maximum output current, decreasing at lower
loads. The KD1084xx is pin to pin compatible with
he older 3-terminal adjustable regulators but has
better performances in term of drop and output
tolerance.
A 2.85 V 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 KD1084xx quiescent current flows
into the load, so increase efficiency. Only a 10 µF
minimum capacitor is need for stability.
The devices are supplied in TO-220, D2PAK and
DPAK. On chip trimming allows the regulator to
reach a very tight output voltage tolerance, within
±1% at 25 °C for "A" version and ±2% at 25 °C for
standard version.
DPAK
TO-220
D2PAK
Table 1.
Device summary
Part numbers
Order codes
TO-220
D2PAK
DPAK
Output voltage
Tolerance
KD1084AXX18
KD1084AD2T18R
1.8 V
1%
KD1084XX25
KD1084D2T25R
KD1084DT25R
2.5 V
2%
KD1084AXX25
KD1084ADT25R
2.5 V
1%
KD1084XX33
KD1084V33
KD1084DT33R
3.3 V
2%
KD1084AXX33
KD1084AV33
KD1084ADT33R
3.3 V
1%
KD1084XX
KD1084DT-R
ADJ
2%
KD1084AXX
KD1084ADT-R
ADJ
1%
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