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KD1084 Schematic ( PDF Datasheet ) - STMicroelectronics

Teilenummer KD1084
Beschreibung 5A LOW DROP POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED
Hersteller STMicroelectronics
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Gesamt 18 Seiten
KD1084 Datasheet, Funktion
KD1084
SERIES
5A LOW DROP POSITIVE VOLTAGE
REGULATOR ADJUSTABLE AND FIXED
s TYPICAL DROPOUT 1.3V (AT 5A)
s THREE TERMINAL ADJUSTABLE OR FIXED
OUTPUT VOLTAGE 1.5V, 1.8V, 2.5V, 2.85V,
3.3V, 3.6V, 5V.
s GUARANTEED OUTPUT CURRENT UP TO
5A
s OUPUT TOLERANCE ±1% AT 25°C AND
±2% IN FULL TEMPERATURE RANGE FOR
THE "A" VERSION
s OUPUT TOLERANCE ±2% AT 25°C AND
±3% IN FULL TEMPERATURE RANGE
INTERNAL POWER AND THERMAL LIMIT
s WIDE OPERATING TEMPERATURE RANGE
-40°C TO 125°C
s PACKAGE AVAILABLE : TO-220, D2PAK,
D2PAK/A, DPAK
s 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 .
SCHEMATIC DIAGRAM
TO-220
D2PAK
DPAK
D2PAK/A
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.
May 2002
1/18






KD1084 Datasheet, Funktion
KD1084 SERIES
ELECTRICAL CHARACTERISTICS OF KD1084A#33 (VI=6.3V, CI = CO =10µF (Tant.), TA = -40 to
125°C, unless otherwise specified.)
Symbol
Parameter
Test Conditions
VO
VO
VO
Vd
Iq
Isc
SVR
eN
S
S
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
Quiescent Current
Short Circuit Current
Termal Regulation
Supply Voltage Rejection
RMS Output Noise Voltage
(% of VO)
Temperature Stability
Long Term Stability
IO = 0 mA TJ = 25°C
IO = 0 to 5A VI = 4.9 to 10V
IO = 0 mA VI = 4.9 to 10V TJ = 25°C
IO = 0 mA VI = 4.9 to 10V
IO = 0 to 5A TJ = 25°C
IO = 0 to 5A
IO =5 A
VI 10V
VI - VO = 5V
TA = 25°C, 30ms pulse
f = 120 Hz, CO = 25 µF, IO = 5A
VI = 6.8 ± 1.5V
TA = 25°C f =10Hz to 10KHz
TA = 125°C 1000Hrs
Min.
3.267
3.234
5.5
60
Typ.
3.3
3.35
0.5
1
3
7
1.3
5
7
0.003
72
Max.
3.333
3.366
6
6
15
20
1.5
10
0.015
0.003
0.5
0.5
Unit
V
V
mV
mV
mV
V
V
mA
A
%/W
dB
%
%
%
ELECTRICAL CHARACTERISTICS OF KD1084A#36 (VI=6.6V, CI = CO =10µF (Tant.), TA = -40 to
125°C, unless otherwise specified.)
Symbol
Parameter
Test Conditions
VO
VO
VO
Vd
Iq
Isc
SVR
eN
S
S
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
Quiescent Current
Short Circuit Current
Termal Regulation
Supply Voltage Rejection
RMS Output Noise Voltage
(% of VO)
Temperature Stability
Long Term Stability
IO = 0 mA TJ = 25°C
IO = 0 to 5A VI = 5.2 to 10V
IO = 0 mA VI = 5.2 to 10V TJ = 25°C
IO = 0 mA VI = 5.2 to 10V
IO = 0 to 5A TJ = 25°C
IO = 0 to 5A
IO =5 A
VI 10V
VI - VO = 5V
TA = 25°C, 30ms pulse
f = 120 Hz, CO = 25 µF, IO = 5A
VI = 7.1 ± 1.5V
TA = 25°C f =10Hz to 10KHz
TA = 125°C 1000Hrs
Min.
3.564
3.528
5.5
60
Typ.
3.6
3.6
0.5
1
3
7
1.3
5
7
0.003
72
Max.
3.636
3.672
10
10
15
20
1.5
10
0.015
0.003
0.5
0.5
Unit
V
V
mV
mV
mV
V
V
mA
A
%/W
dB
%
%
%
6/18

6 Page









KD1084 pdf, datenblatt
KD1084 SERIES
TYPICAL CHARACTERISTICS (unless otherwise specified Tj = 25°C, CI=10µF (tant.), CO=10µF (tant.)
Figure 1 : Dropout Voltage vs Output Current
Figure 4 : Line Regulation vs Temperature
Figure 2 : Dropout Voltage vs Temperature
Figure 5 : Output Voltage vs Temperature
Figure 3 : Short Circuit Current vs Dropout
Voltage
Figure 6 : Load Regulation vs Temperature
12/18

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