STMICROELECTRONICS KD1084AXX18

KD1084AXX
KD1084AXX18
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, 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: D²PAK and DPAK
■
Pinout compatibility with standard adjustable
VREG
Description
The KD1084 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 KD1084 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.
D²PAK
DPAK
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 KD1084 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 °C
for "A" version and ± 2 % at 25 °C for standard
version.
Device summary
Order codes
D²PAK
DPAK
KD1084AD2T18R
KD1084ADT-R
July 2009
Doc ID 8761 Rev 10
Output voltage
Tolerance
1.8 V
1%
ADJ
1%
1/17
www.st.com
17
Contents
KD1084AXX, KD1084AXX18
Contents
1
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4
Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6
Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
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Doc ID 8761 Rev 10
KD1084AXX, KD1084AXX18
1
Diagram
Figure 1.
Schematic diagram
Diagram
Doc ID 8761 Rev 10
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Pin configuration
KD1084AXX, KD1084AXX18
2
Pin configuration
Figure 2.
Pin connections (top view)
D²PAK
4/17
DPAK
Doc ID 8761 Rev 10
KD1084AXX, KD1084AXX18
Maximum ratings
3
Maximum ratings
Table 2.
Absolute maximum ratings
Symbol
Parameter
Value
Unit
12
V
VI
DC input voltage
IO
Output current
Internally limited
PD
Power dissipation
Internally limited
TSTG
Storage temperature range
-55 to +150
°C
TOP
Operating junction temperature range
-40 to +125
°C
Note:
Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied.
Table 3.
Thermal data
Symbol
Parameter
RthJC
Thermal resistance junction-case
RthJA
Thermal resistance junction-ambient
Doc ID 8761 Rev 10
DPAK
D²PAK
Unit
8
3
°C/W
100
62.5
°C/W
5/17
Schematic application
KD1084AXX, KD1084AXX18
4
Schematic application
Figure 3.
Application circuit
R
V O = V REF ⋅ ⎛ 1 + ------2-⎞
⎝
R ⎠
1
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KD1084AXX, KD1084AXX18
5
Electrical characteristics
Electrical characteristics
VI = 4.8 V, CI = CO = 10 µF (tant.), TA = -40 to 125 °C, unless otherwise specified.
Table 4.
Symbol
Electrical characteristics of KD1084AXX18
Parameter
Test conditions
Min.
Typ.
Max.
Unit
IO = 0 mA, TJ = 25°C
1.782
1.8
1.818
V
IO = 0 to 5A, VI = 3.4 to 10V
1.764
1.8
1.836
V
0.5
6
mV
IO = 0 mA, VI = 3.4 to 10V
1
6
mV
IO = 0 to 5A, TJ = 25°C
3
15
mV
IO = 0 to 5A
7
20
V
VO
Output voltage
ΔVO
Line regulation
ΔVO
Load regulation
Vd
Dropout voltage
IO = 5 A
1.3
1.5
V
Iq
Quiescent current
VI ≤ 10V
5
10
mA
Isc
Short circuit current
VI - VO = 5V
Thermal regulation
TA = 25°C, 30ms pulse
Supply voltage rejection
f = 120 Hz, CO = 25µF, IO = 5A
VI = 5.3 ± 1.5V
SVR
eN
IO = 0 mA, VI = 3.4 to 10V
TJ = 25°C
RMS Output noise voltage
TA = 25°C, f = 10Hz to 10kHz
(% of VO)
S
Temperature stability
S
Long term stability
TA = 125°C, 1000Hrs
Doc ID 8761 Rev 10
5.5
7
0.003
60
A
0.015
%/W
75
dB
0.003
%
0.5
%
0.5
%
7/17
Electrical characteristics
KD1084AXX, KD1084AXX18
VI = 4.25 V, CI = CO = 10 µF (tant.), TA = -40 to 125°C, unless otherwise specified.
Table 5.
Symbol
Electrical characteristics of KD1084AXX
Parameter
Test conditions
Min.
Typ.
Max.
Unit
IO = 10 mA, TJ = 25°C
1.237
1.25
1.263
V
IO = 10 mA to 5A, VI = 2.85 to 10V
1.225
1.25
1.275
V
0.015
0.2
mV
IO = 10 mA, VI = 2.85 to 10V
0.035
0.2
mV
IO = 10 mA to 5A, TJ = 25°C
0.1
0.3
mV
IO = 10 mA to 5A
0.2
0.4
V
VO
Output voltage
ΔVO
Line regulation
ΔVO
Load regulation
Vd
Dropout voltage
IO = 5 A
1.3
1.5
V
Quiescent current
VI ≤ 10V
3
10
mA
Short circuit current
VI - VO = 5V
Thermal regulation
TA = 25°C, 30ms pulse
SVR
Supply voltage rejection
f = 120 Hz, CO = 25µF, CADJ = 25µF,
IO = 5A, VI = 4.75 ± 1.5V
IADJ
Adjust pin current
VI = 4.25V, IO = 10 mA
55
120
µA
Adjust pin current change
VI = 2.85 to 10V, IO = 10 mA to 5A
0.2
5
µA
IO(min)
Isc
ΔIADJ
eN
RMS Output noise voltage
TA = 25°C, f = 10Hz to 10kHz
(% of VO)
S
Temperature stability
S
Long term stability
8/17
IO = 10 mA, VI = 2.85 to 10V
TA = 125°C, 1000Hrs
Doc ID 8761 Rev 10
TJ = 25°C
5.5
7
0.003
60
A
0.015
72
%/W
dB
0.003
%
0.5
%
0.5
%
KD1084AXX, KD1084AXX18
Typical application
6
Typical application
Figure 4.
Unless otherwise specified TJ = 25 °C, CI = CO = 10 µF (tant.)
Dropout voltage vs. output current Figure 5.
Dropout voltage vs. temperature
Figure 6.
Short circuit current vs. dropout
voltage
Figure 7.
Line regulation vs. temperature
Figure 8.
Output voltage vs. temperature
Figure 9.
Load regulation vs. temperature
Doc ID 8761 Rev 10
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Typical application
KD1084AXX, KD1084AXX18
Figure 10. Supply voltage rejection vs.
frequency
Figure 11. Adjust pin current vs. output
current
Figure 12. Line transient
Figure 13. Load transient
VI = 4 to 6 V, IO = 200 mA, CI = 1 µF(tant), CO = 10 µF(tant),
ts = tf = 5 µs
VI = 7 V, IO = 0.1 to 5 A, CI = 1 µF(tant), CO = 10 µF(tant),
ts = tf = 3.5 µs
10/17
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KD1084AXX, KD1084AXX18
7
Package mechanical data
Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Doc ID 8761 Rev 10
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Package mechanical data
KD1084AXX, KD1084AXX18
DPAK mechanical data
mm.
inch.
Dim.
Min.
A
A1
A2
B
b4
C
C2
D
D1
E
E1
e
e1
H
L
(L1)
L2
L4
R
V2
Typ.
2.2
0.9
0.03
0.64
5.2
0.45
0.48
6
Max.
Min.
2.4
1.1
0.23
0.9
5.4
0.6
0.6
6.2
0.086
0.035
0.001
0.025
0.204
0.017
0.019
0.236
6.6
0.252
5.1
6.4
0.260
0.173
0.368
0.039
2.8
0.8
0.181
0.397
0.110
0.031
1
0.023
0.2
0°
0.094
0.043
0.009
0.035
0.212
0.023
0.023
0.244
0.185
0.090
4.6
10.1
0.6
Max.
0.200
4.7
2.28
4.4
9.35
1
Typ.
0.039
0.008
8°
0°
8°
0068772-F
12/17
Doc ID 8761 Rev 10
KD1084AXX, KD1084AXX18
Package mechanical data
D2PAK mechanical data
mm.
inch.
Dim.
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
10.4
0.393
D1
E
8
10
E1
0.315
8.5
0.409
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
R
V2
0.4
0°
0.126
0.016
8°
0°
8°
P011P6G
Doc ID 8761 Rev 10
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Package mechanical data
KD1084AXX, KD1084AXX18
Tape & reel DPAK-PPAK mechanical data
mm.
inch.
Dim.
Min.
Typ.
A
Min.
Typ.
330
13.0
13.2
Max.
12.992
C
12.8
D
20.2
0.795
N
60
2.362
T
14/17
Max.
0.504
0.512
22.4
0.519
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
Doc ID 8761 Rev 10
KD1084AXX, KD1084AXX18
Package mechanical data
Tape & reel D2PAK-P2PAK-D2PAK/A-P2PAK/A mechanical data
mm.
inch.
Dim.
Min.
Typ.
A
Max.
Min.
Typ.
180
13.0
7.086
C
12.8
D
20.2
0.795
N
60
2.362
T
13.2
Max.
0.504
0.512
14.4
0.519
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
Doc ID 8761 Rev 10
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Revision history
KD1084AXX, KD1084AXX18
8
Revision history
Table 6.
Document revision history
Date
Revision
06-Sep-2005
4
Order codes updated.
02-Apr-2007
5
Order codes updated.
30-May-2007
6
Order codes updated.
18-Dec-2007
7
Added Table 1.
21-Feb-2008
8
Modified: Table 1 on page 1.
16-Jul-2008
9
Modified: Table 1 on page 1.
28-Jul-2009
10
Modified: Table 1 on page 1.
16/17
Changes
Doc ID 8761 Rev 10
KD1084AXX, KD1084AXX18
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