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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 D2PAK and DPAK. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ±1% at 25 for "A" version and ± 2 % at 25 for standard version.
KD1084ADT33R Maximum Ratings
Symbol
Parameter
Value
Unit
VI
DC input voltage
12
V
IO
Output current
Internally limited
PD
Power dissipation
Internally limited
TSTG
Storage temperature range
-55 to +150
TOP
Operating junction temperature range
-40 to +125
Note: Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
KD1084ADT33R Features
` Typical dropout 1.3 V (at 5 A) ` Three terminal adjustable or fixed output voltage 1.8 V, 3.3 V. ` Guaranteed output current up to 5 A ` Output tolerance ±1 % at 25 and ± 2 % in full temperature range for the "A" version ` Output tolerance ± 2 % at 25 and ± 3 % in full temperature range internal power and thermal limit ` Wide operating temp. range -40 to 125 ` Package available: D2PAK and DPAK ` Pinout compatibility with standard adjustable VREG
KD1084ADT33R Connection Diagram
KD1084ADT-R Parameters
Technical/Catalog Information
KD1084ADT-R
Vendor
STMicroelectronics
Category
Integrated Circuits (ICs)
Regulator Type
Single Output
Package / Case
DPak, SC-63, TO-252 (2 leads+tab)
Packaging
Cut Tape (CT)
Regulator Topology
Positive Adjustable
Current - Output
5A
Voltage - Output
Adjustable
Operating Temperature
-40°C ~ 125°C
Voltage - Input
2.85 ~ 10 V
Number of Regulators
1
Current - Limit (Min)
-
Current Short Circuit (Isc)
5.5A
Lead Free Status
Lead Free
RoHS Status
RoHS Compliant
Other Names
KD1084ADT R KD1084ADTR 497 7755 1 ND 49777551ND 497-7755-1
KD1084ADT-R General 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 D2PAK and DPAK. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ±1% at 25 for "A" version and ± 2 % at 25 for standard version.
KD1084ADT-R Maximum Ratings
Symbol
Parameter
Value
Unit
VI
DC input voltage
12
V
IO
Output current
Internally limited
PD
Power dissipation
Internally limited
TSTG
Storage temperature range
-55 to +150
TOP
Operating junction temperature range
-40 to +125
Note: Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
KD1084ADT-R Features
` Typical dropout 1.3 V (at 5 A) ` Three terminal adjustable or fixed output voltage 1.8 V, 3.3 V. ` Guaranteed output current up to 5 A ` Output tolerance ±1 % at 25 and ± 2 % in full temperature range for the "A" version ` Output tolerance ± 2 % at 25 and ± 3 % in full temperature range internal power and thermal limit ` Wide operating temp. range -40 to 125 ` Package available: D2PAK and DPAK ` Pinout compatibility with standard adjustable VREG