KD1084AD2T18R

Number of Outputs : 1
Maximum Operating Temperature : + 125 C
Mounting Style : SMD/SMT
Output Type : Fixed
Input Voltage MAX : 12 V
Load Regulation : 15 mV
Output Voltage : 1.8 V
Output Current : 5 A
Package / Case : D2PAK
Dropout Voltage (Max) : 1.5 V at 5 A


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: D<sup>2</sup>PAK and DPAK
` Pinout compatibility with standard adjustable VREG



Pinout




Specifications

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.


Description

The KD1084AD2T18R 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 KD1084AD2T18R  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.

Parameters:

Technical/Catalog Information	KD1084AD2T18R
Vendor	STMicroelectronics
Category	Integrated Circuits (ICs)
Regulator Type	Single Output
Package / Case	D²Pak, SMD-220, TO-263 (2 leads + tab)
Packaging	Cut Tape (CT)
Regulator Topology	Positive Fixed
Current - Output	5A
Voltage - Output	1.8V
Operating Temperature	-40°C ~ 125°C
Voltage - Input	3.4 ~ 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	KD1084AD2T18R KD1084AD2T18R 497 7754 1 ND 49777541ND 497-7754-1