KD1084AD2T18R| Datasheet

KD1084AD2T18R, KD1084ADT-R, KD1084ADT25R, KD1084ADT33R, KD1084AV33, KD1084AXX, KD1084AXX18, KD1084AXX25, KD1084AXX33, KD1084D2T25R, KD1084DT-R, KD1084DT25R, KD1084DT33R, KD1084XX, KD1084XX25, KD1084XX33

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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 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 uF 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.
D2PAK TO-220 DPAK

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. Table 1. Device summary

Order codes Part numbers TO-220 KD1084AXX18 KD1084XX25 KD1084AXX25 KD1084XX33 KD1084AXX33 KD1084XX KD1084AXX KD1084AV33 D2PAK KD1084AD2T18R KD1084D2T25R KD1084DT25R KD1084ADT25R KD1084DT33R KD1084ADT33R KD1084DT-R KD1084ADT-R DPAK Output voltage 1.8 V 2.5 V 2.5 V 3.3 V 3.3 V ADJ ADJ Tolerance 1% 2% 1% 2% 1% 2% 1%

February 2008

Rev 8

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