1/20January 2004
■TYPICAL DROPOUT 1.3V (AT 5A)
■THREE TERMINAL ADJUSTABLE OR FIXED
OUTPUT VOLTAGE 1.5V, 1.8V, 2.5V, 2.85V,
3.3V, 3.6V, 5V.
■GUARANTEED OUTPUT CURRENT UP TO
5A
■OUPUT TOLERANCE ±1% AT 25°C AND
±2% IN FULL TEMPERATURE RANGE FOR
THE "A" VERSION
■OUPUT TOLERANCE ±2% AT 25°C AND
±3% IN FULL TEMPERATURE RANGE
INTERNAL POWER AND THERMAL LIMIT
■WIDE OPERATING TEMPERATURE RANGE
-40°C TO 125°C
■PACKAGE AVAILABLE: TO-220, D2PAK,
D2PAK/A, DPAK
■PINOUT COMPATIBILITY WITH STANDARD
ADJUSTABLE VREG
DESCRIPTION
The KD1084 is a LOW DROP Voltage Regulator
able to provide up to 5A of Output Current.
Dropout is guaranteed at a maximum of 1.5V at
the maximum output current, decreasing at lower
loads. The KD1084 is pin to pin compatible with
the older 3-terminal adjustable regulators, but has
better performances in term of drop and output
tolerance.
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 KD1084 quiescent current flows into
the load, so increase efficiency. Only a 10µF
minimum capacitor is need for stability.
The devices are supplied in TO-220, D2PAK,
D2PAK/A 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.
KD1084
SERIES
5A LOW DROP POSITIVE VOLTAGE
REGULATOR ADJUSTABLE AND FIXED
SCHEMATIC DIAGRAM
TO-220 D2PAK
D2PAK/ADPAK
KD1084 SERIES
2/20
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
THERMAL DATA
APPLICATION CIRCUITS
CONNECTION DIAGRAM (top view)
Symbol Parameter Value Unit
VIDC Input Voltage 12 V
IOOutput Current Internally Limited mA
PDPower Dissipation Internally Limited mW
Tstg Storage Temperature Range -55 to +150 °C
Top Operating Junction Temperature Range -40 to +125 °C
Symbol Parameter TO-220 D2PAK
D2PAK/A DPAK Unit
Rthj-case Thermal Resistance Junction-case 333°C/W
Rthj-amb Thermal Resistance Junction-ambient 50 62.5 50 °C/W
R2
VO=V
REF (1 + )
R1
TO-220
D2PAK D2PAK/A
DPAK
KD1084 SERIES
3/20
ORDERING CODES
(*) Available on request
(**) Available in Tape & Reel with the suffix "R" for fixed versions and "-R" for adjustable version
ELECTRICAL CHARACTERISTICS OF KD1084A#15 (VI=4.5V, CI=C
O=10µF (Tant.), TA=-40to
125°C, unless otherwise specified.)
TO-220 D2PAK (**) D2PAK/A (**) DPAK (**) OUTPUT
VOLTAGE TOLERANCE
KD1084V15 (*) KD1084D2T15 KD1084D2M15 KD1084DT15 1.5 V 2%
KD1084AV15 (*) KD1084AD2T15 KD1084AD2M15 KD1084ADT15 1.5 V 1%
KD1084V18 KD1084D2T18 KD1084D2M18 KD1084DT18 1.8 V 2%
KD1084AV18 KD1084AD2T18 KD1084AD2M18 KD1084ADT18 1.8 V 1%
KD1084V25 KD1084D2T25 KD1084D2M25 KD1084DT25 2.5 V 2%
KD1084AV25 KD1084AD2T25 KD1084AD2M25 KD1084ADT25 2.5 V 1%
KD1084V28 (*) KD1084D2T28 (*) KD1084D2M28 (*) KD1084DT28 (*) 2.85 V 2%
KD1084AV28 (*) KD1084AD2T28 (*) KD1084AD2M28 (*) KD1084ADT28 (*) 2.85 V 1%
KD1084V33 KD1084D2T33 KD1084D2M33 KD1084DT33 3.3 V 2%
KD1084AV33 KD1084AD2T33 KD1084AD2M33 KD1084ADT33 3.3 V 1%
KD1084V36 KD1084D2T36 KD1084D2M36 KD1084DT36 3.6 V 2%
KD1084AV36 KD1084AD2T36 KD1084AD2M36 KD1084ADT36 3.6 V 1%
KD1084V50 KD1084D2T50 KD1084D2M50 KD1084DT50 5.0 V 2%
KD1084AV50 KD1084AD2T50 KD1084AD2M50 KD1084ADT50 5.0 V 1%
KD1084V KD1084D2T KD1084D2M KD1084DT ADJ 2%
KD1084AV KD1084AD2T KD1084AD2M KD1084ADT ADJ 1%
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO=0mA T
J= 25°C 1.485 1.5 1.515 V
IO=0to5A V
I= 3.1 to 10V 1.47 1.5 1.53 V
∆VOLine Regulation IO=0mA V
I= 3.1 to 10V TJ= 25°C 0.5 6 mV
IO=0mA V
I= 3.1 to 10V 1 6 mV
∆VOLoad Regulation IO=0to5A T
J=25°C 3 15 mV
IO=0to5A 7 20 V
VdDropout Voltage IO=5 A 1.3 1.5 V
IqQuiescent Current VI≤10V 5 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, IO=5A
VI=5± 1.5V 60 75 dB
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
KD1084 SERIES
4/20
ELECTRICAL CHARACTERISTICS OF KD1084A#18 (VI=4.8V, CI=C
O=10µF (Tant.), TA=-40to
125°C, unless otherwise specified.)
ELECTRICAL CHARACTERISTICS OF KD1084A#25 (VI=5.5V, CI=C
O=10µF (Tant.), TA=-40to
125°C, unless otherwise specified.)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO=0mA T
J= 25°C 1.782 1.8 1.818 V
IO=0to5A V
I= 3.4 to 10V 1.764 1.8 1.836 V
∆VOLine Regulation IO=0mA V
I= 3.4 to 10V TJ= 25°C 0.5 6 mV
IO=0mA V
I= 3.4 to 10V 1 6 mV
∆VOLoad Regulation IO=0to5A T
J=25°C 3 15 mV
IO=0to5A 7 20 V
VdDropout Voltage IO=5 A 1.3 1.5 V
IqQuiescent Current VI≤10V 5 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, IO=5A
VI=5.3± 1.5V 60 75 dB
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO=0mA T
J= 25°C 2.475 2.5 2.525 V
IO=0to5A V
I= 4.1 to 10V 2.45 2.5 2.55 V
∆VOLine Regulation IO=0mA V
I= 4.1 to 10V TJ= 25°C 0.5 6 mV
IO=0mA V
I= 4.1 to 10V 1 6 mV
∆VOLoad Regulation IO=0to5A T
J=25°C 3 15 mV
IO=0to5A 7 20 V
VdDropout Voltage IO=5 A 1.3 1.5 V
IqQuiescent Current VI≤10V 5 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, IO=5A
VI=6± 1.5V 60 72 dB
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
KD1084 SERIES
5/20
ELECTRICAL CHARACTERISTICS OF KD1084A#285 (VI=5.85V, CI=C
O=10µF(Tant.),T
A=-40to
125°C, unless otherwise specified.)
ELECTRICAL CHARACTERISTICS OF KD1084A#33 (VI=6.3V, CI=C
O=10µF (Tant.), TA=-40to
125°C, unless otherwise specified.)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO=0mA T
J= 25°C 2.821 2.85 2.879 V
IO=0to5A V
I= 4.5 to 10V 2.793 2.85 2.907 V
∆VOLine Regulation IO=0mA V
I= 4.5 to 10V TJ= 25°C 0.5 6 mV
IO=0mA V
I= 4.5 to 10V 1 6 mV
∆VOLoad Regulation IO=0to5A T
J=25°C 3 15 mV
IO=0to5A 7 20 V
VdDropout Voltage IO=5 A 1.3 1.5 V
IqQuiescent Current VI≤10V 5 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, IO=5A
VI=6.35± 1.5V 60 72 dB
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO=0mA T
J= 25°C 3.267 3.3 3.333 V
IO=0to5A V
I= 4.9 to 10V 3.234 3.35 3.366 V
∆VOLine Regulation IO=0mA V
I= 4.9 to 10V TJ= 25°C 0.5 6 mV
IO=0mA V
I= 4.9 to 10V 1 6 mV
∆VOLoad Regulation IO=0to5A T
J=25°C 3 15 mV
IO=0to5A 7 20 V
VdDropout Voltage IO=5 A 1.3 1.5 V
IqQuiescent Current VI≤10V 5 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, IO=5A
VI=6.8± 1.5V 60 72 dB
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
KD1084 SERIES
6/20
ELECTRICAL CHARACTERISTICS OF KD1084A#36 (VI=6.6V, CI=C
O=10µF (Tant.), TA=-40to
125°C, unless otherwise specified.)
ELECTRICAL CHARACTERISTICS OF KD1084A#5 (VI=8V, CI=C
O=10µF(Tant.),T
A= -40 to 125°C,
unless otherwise specified.)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO=0mA T
J= 25°C 3.564 3.6 3.636 V
IO=0to5A V
I= 5.2 to 10V 3.528 3.6 3.672 V
∆VOLine Regulation IO=0mA V
I= 5.2 to 10V TJ= 25°C 0.5 10 mV
IO=0mA V
I= 5.2 to 10V 1 10 mV
∆VOLoad Regulation IO=0to5A T
J=25°C 3 15 mV
IO=0to5A 7 20 V
VdDropout Voltage IO=5 A 1.3 1.5 V
IqQuiescent Current VI≤10V 5 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, IO=5A
VI=7.1± 1.5V 60 72 dB
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO=0mA T
J=25°C 4.95 5 5.05 V
IO=0to5A V
I= 6.6 to 10V 4.9 5 5.1 V
∆VOLine Regulation IO=0mA V
I= 6.6 to 10V TJ= 25°C 0.5 10 mV
IO=0mA V
I= 6.6 to 10V 1 10 mV
∆VOLoad Regulation IO=0to5A T
J=25°C 5 20 mV
IO= 0 to 5A 10 35 V
VdDropout Voltage IO=5 A 1.3 1.5 V
IqQuiescent Current VI≤10V 5 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, IO=5A
VI=8.5± 1.5V 60 72 dB
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
KD1084 SERIES
7/20
ELECTRICAL CHARACTERISTICS OF KD1084A (VI=4.25V,CI=CO=10µF (Tant.), TA= -40 to 125°C,
unless otherwise specified.)
ELECTRICAL CHARACTERISTICS OF KD1084#15 (VI=4.5V,CI=C
O=10µF (Tant.), TA= -40 to 125°C,
unless otherwise specified.)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO= 10mA TJ= 25°C 1.237 1.25 1.263 V
IO= 10mA to 5A VI= 2.85 to 10V 1.225 1.25 1.275 V
∆VOLine Regulation IO= 10mA VI=2.85to10V T
J= 25°C 0.015 0.2 %
IO= 10mA VI= 2.85 to 10V 0.035 0.2 %
∆VOLoad Regulation IO= 10mA to 5A TJ= 25°C 0.1 0.3 %
IO= 10mA to 5A 0.2 0.4 %
VdDropout Voltage IO=5A 1.3 1.5 V
IO(min) Minimum Load Current VI=10V 3 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, CADJ =25µF,
IO=5A V
I=4.75± 1.5V 60 72 dB
IADJ Adjust Pin Current VI=4.25V IO=10mA 55 120 µA
∆IADJ Adjust Pin Current Change IO= 10mA to 5A VI= 2.85 to 10V 0.2 5 µA
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO=0mA T
J= 25°C 1.47 1.5 1.536 V
IO=0to5A V
I= 3.1 to 10V 1.455 1.5 1.545 V
∆VOLine Regulation IO=0mA V
I= 3.1 to 10V TJ= 25°C 0.5 6 mV
IO=0mA V
I= 3.1 to 10V 1 6 mV
∆VOLoad Regulation IO=0to5A T
J=25°C 3 15 mV
IO=0to5A 7 20 V
VdDropout Voltage IO=5 A 1.3 1.5 V
IqQuiescent Current VI≤10V 5 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, IO=5A
VI=5± 1.5V 60 75 dB
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
KD1084 SERIES
8/20
ELECTRICAL CHARACTERISTICS OF KD1084#18 (VI=4.8V,CI=C
O=10µF (Tant.), TA= -40 to 125°C,
unless otherwise specified.)
ELECTRICAL CHARACTERISTICS OF KD1084#25 (VI=5.5V,CI=C
O=10µF (Tant.), TA= -40 to 125°C,
unless otherwise specified.)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO=0mA T
J= 25°C 1.764 1.8 1.836 V
IO=0to5A V
I= 3.4 to 10V 1.746 1.8 1.854 V
∆VOLine Regulation IO=0mA V
I= 3.4 to 10V TJ= 25°C 0.5 6 mV
IO=0mA V
I= 3.4 to 10V 1 6 mV
∆VOLoad Regulation IO=0to5A T
J=25°C 3 15 mV
IO=0to5A 7 20 V
VdDropout Voltage IO=5 A 1.3 1.5 V
IqQuiescent Current VI≤10V 5 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, IO=5A
VI=5.3± 1.5V 60 75 dB
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO=0mA T
J= 25°C 2.45 2.5 2.55 V
IO=0to5A V
I= 4.1 to 10V 2.425 2.5 2.575 V
∆VOLine Regulation IO=0mA V
I= 4.1 to 10V TJ= 25°C 0.5 6 mV
IO=0mA V
I= 4.1 to 10V 1 6 mV
∆VOLoad Regulation IO=0to5A T
J=25°C 3 15 mV
IO=0to5A 7 20 V
VdDropout Voltage IO=5 A 1.3 1.5 V
IqQuiescent Current VI≤10V 5 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, IO=5A
VI=6± 1.5V 60 72 dB
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
KD1084 SERIES
9/20
ELECTRICAL CHARACTERISTICS OF KD1084#285 (VI=5.85V, CI=C
O=10µF (Tant.), TA=-40to
125°C, unless otherwise specified.)
ELECTRICAL CHARACTERISTICS OF KD1084#33 (VI=6.3V,CI=C
O=10µF (Tant.), TA= -40 to 125°C,
unless otherwise specified.)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO=0mA T
J= 25°C 2.793 2.85 2.907 V
IO=0to5A V
I= 4.5 to 10V 2.765 2.85 2.935 V
∆VOLine Regulation IO=0mA V
I= 4.5 to 10V TJ= 25°C 0.5 6 mV
IO=0mA V
I= 4.5 to 10V 1 6 mV
∆VOLoad Regulation IO=0to5A T
J=25°C 3 15 mV
IO=0to5A 7 20 V
VdDropout Voltage IO=5 A 1.3 1.5 V
IqQuiescent Current VI≤10V 5 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, IO=5A
VI=6.35± 1.5V 60 72 dB
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO=0mA T
J= 25°C 3.234 3.3 3.366 V
IO=0to5A V
I= 4.9 to 10V 3.2 3.3 3.4 V
∆VOLine Regulation IO=0mA V
I= 4.9 to 10V TJ= 25°C 0.5 6 mV
IO=0mA V
I= 4.9 to 10V 1 6 mV
∆VOLoad Regulation IO=0to5A T
J=25°C 3 15 mV
IO=0to5A 7 20 V
VdDropout Voltage IO=5 A 1.3 1.5 V
IqQuiescent Current VI≤10V 5 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, IO=5A
VI=6.8± 1.5V 60 72 dB
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
KD1084 SERIES
10/20
ELECTRICAL CHARACTERISTICS OF KD1084#36 (VI=6.6V,CI=C
O=10µF (Tant.), TA= -40 to 125°C,
unless otherwise specified.)
ELECTRICAL CHARACTERISTICS OF KD1084#5 (VI=8V, CI=C
O=10µF (Tant.), TA= -40 to 125°C,
unless otherwise specified.)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO=0mA T
J= 25°C 3.528 3.6 3.672 V
IO=0to5A V
I= 5.2 to 10V 3.492 3.6 3.708 V
∆VOLine Regulation IO=0mA V
I= 5.2 to 10V TJ= 25°C 0.5 10 mV
IO=0mA V
I= 5.2 to 10V 1 10 mV
∆VOLoad Regulation IO=0to5A T
J=25°C 3 15 mV
IO=0to5A 7 20 V
VdDropout Voltage IO=5 A 1.3 1.5 V
IqQuiescent Current VI≤10V 5 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, IO=5A
VI=7.1± 1.5V 60 72 dB
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO=0mA T
J= 25°C 4.9 5 5.1 V
IO=0to5A V
I= 6.6 to 10V 4.85 5 5.15 V
∆VOLine Regulation IO=0mA V
I= 6.6 to 10V TJ= 25°C 0.5 10 mV
IO=0mA V
I= 6.6 to 10V 1 10 mV
∆VOLoad Regulation IO=0to5A T
J=25°C 5 20 mV
IO= 0 to 5A 10 35 V
VdDropout Voltage IO=5 A 1.3 1.5 V
IqQuiescent Current VI≤10V 5 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, IO=5A
VI=8.5± 1.5V 60 72 dB
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
KD1084 SERIES
11/20
ELECTRICAL CHARACTERISTICS OF KD1084 (VI=4.25V, CI=C
O=10µF (Tant.), TA= -40 to 125°C,
unless otherwise specified.)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOOutput Voltage IO= 10mA TJ= 25°C 1.225 1.25 1.275 V
IO= 10mA to 5A VI= 2.85 to 10V 1.213 1.25 1.287 V
∆VOLine Regulation IO= 10mA VI=2.85to10V T
J= 25°C 0.015 0.2 %
IO= 10mA VI= 2.85 to 10V 0.035 0.2 %
∆VOLoad Regulation IO= 10mA to 5A TJ= 25°C 1 0.3 %
IO= 10mA to 5A 0.2 0.4 %
VdDropout Voltage IO=5A 1.3 1.5 V
IO(min) Minimum Load Current VI=10V 3 10 mA
Isc Short Circuit Current VI-V
O=5V 5.5 7 A
Thermal Regulation TA= 25°C, 30ms pulse 0.003 0.015 %/W
SVR Supply Voltage Rejection f = 120 Hz, CO=25µF, CADJ =25µF,
IO=5A V
I=4.75± 1.5V 60 72 dB
IADJ Adjust Pin Current VI=4.25V IO=10mA 55 120 µA
∆IADJ Adjust Pin Current Change IO= 10mA to 5A VI= 2.85 to 10V 0.2 5 µA
eN RMS Output Noise Voltage
(% of VO)TA= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 %
S Long Term Stability TA= 125°C 1000Hrs 0.5 %
KD1084 SERIES
12/20
TYPICAL CHARACTERISTICS
(unless otherwise specified T
j
= 25°C, C
I
=10
µ
F (tant.), C
O
=10
µ
F (tant.)
Figure 1 : Dropout Voltage vs Output Current
Figure 2 : Dropout Voltage vs Temperature
Figure 3 : Short Circuit Current vs Dropout
Voltage
Figure 4 : Line Regulation vs Temperature
Figure 5 : Output Voltage vs Temperature
Figure 6 : Load Regulation vs Temperature
KD1084 SERIES
13/20
Figure 7 : Supply Voltage Rejection vs
Frequency
Figure 8 : Adjust Pin Current vs Output Current
Figure 9 : Line Transient
Figure 10 : Load Transient
VI=4 to 6V, IO=200mA,CI=1µF(tant), CO=10µF(tant), ts=tf=5µs
VI=7 V, IO=0.1to5A,C
I=1µF(tant), CO=10µF(tant) ts=tf=3.5µs
KD1084 SERIES
14/20
DIM. mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
A 4.40 4.60 0.173 0.181
C 1.23 1.32 0.048 0.051
D 2.40 2.72 0.094 0.107
D1 1.27 0.050
E 0.49 0.70 0.019 0.027
F 0.61 0.88 0.024 0.034
F1 1.14 1.70 0.044 0.067
F2 1.14 1.70 0.044 0.067
G 4.95 5.15 0.194 0.203
G1 2.4 2.7 0.094 0.106
H2 10.0 10.40 0.393 0.409
L2 16.4 0.645
L4 13.0 14.0 0.511 0.551
L5 2.65 2.95 0.104 0.116
L6 15.25 15.75 0.600 0.620
L7 6.2 6.6 0.244 0.260
L9 3.5 3.93 0.137 0.154
DIA. 3.75 3.85 0.147 0.151
TO-220 MECHANICAL DATA
P011C
KD1084 SERIES
15/20
DIM. mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
A 4.4 4.6 0.173 0.181
A1 2.49 2.69 0.098 0.106
A2 0.03 0.23 0.001 0.009
B 0.7 0.93 0.027 0.036
B2 1.14 1.7 0.044 0.067
C 0.45 0.6 0.017 0.023
C2 1.23 1.36 0.048 0.053
D 8.95 9.35 0.352 0.368
D1 8 0.315
E 10 10.4 0.393 0.409
E1 8.5 0.335
G 4.88 5.28 0.192 0.208
L 15 15.85 0.590 0.624
L2 1.27 1.4 0.050 0.055
L3 1.4 1.75 0.055 0.068
M 2.4 3.2 0.094 0.126
R 0.4 0.016
V2 0˚ 8˚ 0˚ 8˚
D2PAK MECHANICAL DATA
P011P6G
KD1084 SERIES
16/20
DIM. mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
A 4.40 4.60 0.173 0.181
A1 2.49 2.69 0.098 0.106
B 0.7 0.93 0.027 0.036
B2 1.14 1.7 0.044 0.067
C 0.45 0.60 0.017 0.023
C2 1.21 1.36 0.047 0.053
D 8.95 9.35 0.352 0.368
E 10 10.4 0.393 0.409
G 4.88 5.28 0.192 0.208
L 15 15.85 0.590 0.106
L2 1.27 1.4 0.050 0.055
D2PAK/A MECHANICAL DATA
KD1084 SERIES
17/20
DIM. mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
A 2.2 2.4 0.086 0.094
A1 0.9 1.1 0.035 0.043
A2 0.03 0.23 0.001 0.009
B 0.64 0.9 0.025 0.035
B2 5.2 5.4 0.204 0.212
C 0.45 0.6 0.017 0.023
C2 0.48 0.6 0.019 0.023
D 6 6.2 0.236 0.244
D1 5.1 0.200
E 6.4 6.6 0.252 0.260
E1 4.7 0.185
e 2.28 0.090
e1 4.4 4.6 0.173 0.181
H 9.35 10.1 0.368 0.397
L 1 0.039
(L1) 2.8 0.110
L2 0.8 0.031
L4 0.6 1 0.023 0.039
DPAK MECHANICAL DATA
0068772-F
KD1084 SERIES
18/20
DIM. mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
A 180 7.086
C 12.8 13.0 13.2 0.504 0.512 0.519
D 20.2 0.795
N 60 2.362
T 14.4 0.567
Ao 10.50 10.6 10.70 0.413 0.417 0.421
Bo 15.70 15.80 15.90 0.618 0.622 0.626
Ko 4.80 4.90 5.00 0.189 0.193 0.197
Po 3.9 4.0 4.1 0.153 0.157 0.161
P 11.9 12.0 12.1 0.468 0.472 0.476
Tape & Reel D2PAK-P2PAK-D2PAK/A-P2PAK/A MECHANICAL DATA
KD1084 SERIES
19/20
DIM. mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
A 330 12.992
C 12.8 13.0 13.2 0.504 0.512 0.519
D 20.2 0.795
N 60 2.362
T 22.4 0.882
Ao 6.80 6.90 7.00 0.268 0.272 0.2.76
Bo 10.40 10.50 10.60 0.409 0.413 0.417
Ko 2.55 2.65 2.75 0.100 0.104 0.105
Po 3.9 4.0 4.1 0.153 0.157 0.161
P 7.9 8.0 8.1 0.311 0.315 0.319
Tape & Reel DPAK-PPAK MECHANICAL DATA
KD1084 SERIES
20/20
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
conseq uences of use o f suc h info rmat ion n or for any in fringeme nt of paten ts or oth er righ ts of third part ies whic h may resul t from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
All other names are the property of their respective owners
© 2004 STMicroelectronics - All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -
Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States.
http://www.st.com
