STMICROELECTRONICS LD1086XX15

LD1086xx
1.5 A low drop positive voltage regulator adjustable and fixed
Features
■
Typical dropout 1.3 V at 1.5 A
■
Three terminal adjustable or fixed output
voltage 1.5 V, 1.8 V, 2.5 V, 3.3 V, 3.6 V, 5 V,
8 V, 12 V
■
Automotive Grade product: adjustable VOUT
only in TO-220 and DPAK packages
DPAK
TO-220
■
Guaranteed output current up to 1.5A
■
Output tolerance ± 1 % at 25 °C and ± 2% 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
D2PAK
Description
The LD1086 is a LOW DROP voltage regulator
able to provide up to 1.5 A of output current.
Dropout is guaranteed at a maximum of 1.2 V at
the maximum output current, decreasing at lower
loads. The LD1086 is pin to pin compatible with
the older 3-terminal adjustable regulators, but has
better performances in term of drop and output
tolerance.
D2PAK/A
the load, so increase efficiency. Only a 10 µF
minimum capacitor is need for stability. The
device is 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.
The LD1086 is available as Automotive Grade in
TO-220 and DPAK packages, for the option of
adjustable output voltage whose commercial Part
Numbers are shown in the Table 18 (order
codes). These devices are qualified according to
the specification AEC-Q100 of the Automotive
market, in the temperature range -40 °C to 125
°C, and the statistical tests PAT, SYL, SBL are
performed.
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 LD1086 quiescent current flows into
Table 1.
Device summary
Part number
LD1086XX
LD1086XX18
LD1086XX36
LD1086XX12
LD1086XX25
LD1086XX50
LD1086XX15
LD1086XX33
LD1086XX80
February 2008
Rev 21
1/39
www.st.com
39
Contents
LD1086xx
Contents
1
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4
Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6
Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
8
Order codes
9
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
2/39
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
LD1086xx
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Figure 30.
Figure 31.
Figure 32.
Figure 33.
Figure 34.
Figure 35.
Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Output voltage vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Output voltage vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Output voltage vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Short circuit current vs dropout voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Line regulation vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Load regulation vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Dropout voltage vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Dropout voltage vs output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Adjust pin current vs input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Adjust pin current vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Adjust pin current vs output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Quiescent current vs output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Quiescent current vs input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Supply voltage rejection vs output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Supply voltage rejection vs frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Supply voltage rejection vs temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Minimum load current vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Stability for adjustable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Stability for 2.85 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Stability for 12 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Line transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Line transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Line transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Load transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Load transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Thermal protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Drawing dimension D2PAK (type STD-ST). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Drawing dimension D2PAK (type WOOSEOK-SUBCON.) . . . . . . . . . . . . . . . . . . . . . . . . . 28
D2PAK footprint recommended data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Drawing dimension D2PAK/A (type STD-ST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Drawing dimension D2PAK/A (type WOOSEOK-Subcon.) . . . . . . . . . . . . . . . . . . . . . . . . . 32
D2PAK/A footprint recommended data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3/39
List of tables
LD1086xx
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
4/39
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical characteristics of LD1086#15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical characteristics of LD1086#18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical characteristics of LD1086#25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electrical characteristics of LD1086#33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical characteristics of LD1086#36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Electrical characteristics of LD1086#50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Electrical characteristics of LD1086#80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Electrical characteristics of LD1086#12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Electrical characteristics of LD1086# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Electrical characteristics of LD1086DTTRY and LD1086VY (Automotive Grade) . . . . . . . 18
D2PAK mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Footprint data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
D2PAK/A mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Footprint data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
LD1086xx
Diagram
1
Diagram
Figure 1.
Schematic diagram
5/39
Pin configuration
LD1086xx
2
Pin configuration
Figure 2.
Pin connections (top view)
TO-220
DPAK
Note:
6/39
D2PAK
D2PAK/A
The TAB is physically connected to the output (this is valid for the TO-220 package too).
LD1086xx
Maximum ratings
3
Maximum ratings
Table 2.
Absolute maximum ratings
Symbol
Parameter
Value
Unit
30
V
VI
DC input voltage
IO
Output current
Internally Limited
mA
PD
Power dissipation
Internally Limited
mW
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
TO-220
D2PAK
D2PAK/A
DPAK
Unit
8
°C/W
RthJC
Thermal resistance junction-case
3
3
RthJA
Thermal resistance junction-ambient
50
62.5
°C/W
7/39
Schematic application
4
Schematic application
Figure 3.
Application circuit
LD1086xx
R
V O = V REF ⋅ ⎛ 1 + ------2-⎞
⎝
R ⎠
1
8/39
LD1086xx
Electrical characteristics
5
Electrical characteristics
Table 4.
Electrical characteristics of LD1086#15
(VI = 4.5 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified).
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
IO = 0 mA, TJ = 25°C
1.485
1.5
1.515
V
IO = 0 to 1.5A, VI = 3.4 to 30V
1.47
1.5
1.53
V
IO = 0 mA, VI = 3.1 to 18V, TJ = 25°C
0.2
4
mV
IO = 0 mA, VI = 3.1 to 15V
0.4
4
mV
IO = 0 to 1.5A, TJ = 25°C
0.5
8
mV
1
16
mV
1.3
1.5
V
5
10
mA
VO
Output voltage (1)
ΔVO
Line regulation
ΔVO
Load regulation
Vd
Dropout voltage
IO = 1.5A
Iq
Quiescent current
VI ≤30V
Isc
Short circuit current
SVR
eN
IO = 0 to 1.5A
VI - VO = 5V
1.5
2
A
VI - VO = 25V
0.05
0.02
A
Thermal regulation
TA = 25°C, 30ms pulse
Supply voltage rejection
f = 120 Hz, CO = 25 µF, IO = 1.5A
VI = 6.5 ± 3V
RMS Output noise voltage (% of
TA = 25°C, f =10Hz to 10kHz
VO)
S
Temperature stability
S
Long term stability
TA = 125°C, 1000Hrs
0.01
60
0.04
%/W
82
dB
0.003
%
0.5
%
0.5
%
1. See short-circuit current curve for available output current at fixed dropout.
9/39
Electrical characteristics
Table 5.
Symbol
LD1086xx
Electrical characteristics of LD1086#18
(VI = 4.8 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified).
Parameter
Test condition
Min.
Typ.
Max.
Unit
IO = 0 mA, TJ = 25°C
1.782
1.8
1.818
V
IO = 0 to 1.5A, VI = 3.4 to 30V
1.764
1.8
1.836
V
IO = 0 mA, VI = 3.4 to 18V, TJ = 25°C
0.2
4
mV
IO = 0 mA, VI = 3.4 to 15V
0.4
4
mV
IO = 0 to 1.5A, TJ = 25°C
0.5
8
mV
1
16
mV
1.3
1.5
V
5
10
mA
VO
Output voltage (1)
ΔVO
Line regulation
ΔVO
Load regulation
Vd
Dropout voltage
IO = 1.5A
Iq
Quiescent current
VI ≤30V
Isc
Short circuit current
SVR
eN
IO = 0 to 1.5A
VI - VO = 5V
1.5
2
A
VI - VO = 25V
0.05
0.02
A
Thermal regulation
TA = 25°C, 30ms pulse
Supply voltage rejection
f = 120 Hz, CO = 25 µF, IO = 1.5A
VI = 6.8 ± 3V
RMS Output noise voltage (% of
TA = 25°C, f =10Hz to 10kHz
VO)
S
Temperature stability
S
Long term stability
TA = 125°C, 1000Hrs
1. See short-circuit current curve for available output current at fixed dropout.
10/39
0.01
60
0.04
%/W
82
dB
0.003
%
0.5
%
0.5
%
LD1086xx
Table 6.
Symbol
Electrical characteristics
Electrical characteristics of LD1086#25
(VI = 5.5 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified).
Parameter
Test condition
Min.
Typ.
Max.
Unit
IO = 0 mA, TJ = 25°C
2.475
2.5
2.525
V
IO = 0 to 1.5A, VI = 4.1 to 30V
2.45
2.5
2.55
V
IO = 0 mA, VI = 4.1 to 18V, TJ = 25°C
0.2
4
mV
IO = 0 mA, VI = 4.1 to 18V
0.4
4
mV
IO = 0 to 1.5A, TJ = 25°C
0.5
8
mV
1
16
mV
1.3
1.5
V
5
10
mA
VO
Output voltage (1)
ΔVO
Line regulation
ΔVO
Load regulation
Vd
Dropout voltage
IO = 1.5A
Iq
Quiescent current
VI ≤30V
Isc
Short circuit current
SVR
eN
IO = 0 to 1.5A
VI - VO = 5V
1.5
2
A
VI - VO = 25V
0.05
0.2
A
Thermal regulation
TA = 25°C, 30ms pulse
Supply voltage rejection
f = 120 Hz, CO = 25 µF, IO = 1.5A
VI = 7.5 ± 3V
RMS Output noise voltage (% of
TA = 25°C, f =10Hz to 10kHz
VO)
S
Temperature stability
S
Long term stability
TA = 125°C, 1000Hrs
0.008
60
0.04
%/W
81
dB
0.003
%
0.5
%
0.5
%
1. See short-circuit current curve for available output current at fixed dropout.
11/39
Electrical characteristics
Table 7.
Symbol
LD1086xx
Electrical characteristics of LD1086#33
(VI = 6.3 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified).
Parameter
Test condition
Min.
Typ.
Max.
Unit
IO = 0 mA, TJ = 25°C
3.267
3.3
3.333
V
IO = 0 to 1.5A, VI = 4.9 to 30V
3.234
3.3
3.366
V
0.5
6
mV
IO = 0 mA, VI = 4.9 to 18V
1
6
mV
IO = 0 to 1.5A, TJ = 25°C
1
10
mV
IO = 0 to 1.5A
7
25
mV
1.3
1.5
V
5
10
mA
VO
Output voltage (1)
ΔVO
Line regulation
ΔVO
Load regulation
Vd
Dropout voltage
IO = 1.5A
Iq
Quiescent current
VI ≤30V
Isc
Short circuit current
SVR
eN
IO = 0 mA, VI = 4.9 to 18V, TJ = 25°C
VI - VO = 5V
1.5
2
A
VI - VO = 25V
0.05
0.2
A
Thermal regulation
TA = 25°C, 30ms pulse
Supply voltage rejection
f = 120 Hz, CO = 25 µF, IO = 1.5A
VI = 8.3 ± 3V
RMS Output noise voltage (% of
TA = 25°C, f =10Hz to 10kHz
VO)
S
Temperature stability
S
Long term stability
TA = 125°C, 1000Hrs
1. See short-circuit current curve for available output current at fixed dropout.
12/39
0.008
60
0.04
%/W
79
dB
0.003
%
0.5
%
0.5
%
LD1086xx
Table 8.
Symbol
Electrical characteristics
Electrical characteristics of LD1086#36
(VI = 6.6 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified).
Parameter
Test condition
Min.
Typ.
Max.
Unit
IO = 0 mA, TJ = 25°C
3.564
3.6
3.636
V
IO = 0 to 1.5A, VI = 5.2 to 30V
3.528
3.6
3.672
V
0.5
10
mV
IO = 0 mA, VI = 5.2 to 18V
1
10
mV
IO = 0 to 1.5A, TJ = 25°C
3
15
mV
IO = 0 to 1.5A
7
25
mV
1.3
1.5
V
5
10
mA
VO
Output voltage (1)
ΔVO
Line regulation
ΔVO
Load regulation
Vd
Dropout voltage
IO = 1.5A
Iq
Quiescent current
VI ≤30V
Isc
Short circuit current
SVR
eN
IO = 0 mA, VI = 5.2 to 18V, TJ = 25°C
VI - VO = 5V
1.5
2
A
VI - VO = 25V
0.05
0.2
A
Thermal regulation
TA = 25°C, 30ms pulse
Supply voltage rejection
f = 120 Hz, CO = 25 µF, IO = 1.5A
VI = 8.6 ± 3V
RMS Output noise voltage (% of
TA = 25°C, f =10Hz to 10kHz
VO)
S
Temperature stability
S
Long term stability
TA = 125°C, 1000Hrs
0.01
60
0.04
%/W
78
dB
0.003
%
0.5
%
0.5
%
1. See short-circuit current curve for available output current at fixed dropout.
13/39
Electrical characteristics
Table 9.
Symbol
LD1086xx
Electrical characteristics of LD1086#50
(VI = 8 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified).
Parameter
Test condition
Min.
Typ.
Max.
Unit
IO = 0 mA, TJ = 25°C
4.95
5
5.05
V
IO = 0 to 1.5A, VI = 6.6 to 30V
4.9
5
5.1
V
0.5
10
mV
IO = 0 mA, VI = 6.6 to 20V
1
10
mV
IO = 0 to 1.5A, TJ = 25°C
5
20
mV
IO = 0 to 1.5A
10
35
mV
1.3
1.5
V
5
10
mA
VO
Output voltage (1)
ΔVO
Line regulation
ΔVO
Load regulation
Vd
Dropout voltage
IO = 1.5A
Iq
Quiescent current
VI ≤30V
Isc
Short circuit current
SVR
eN
IO = 0 mA, VI = 6.6 to 20V, TJ = 25°C
VI - VO = 5V
1.5
2
A
VI - VO = 25V
0.05
0.2
A
Thermal regulation
TA = 25°C, 30ms pulse
Supply voltage rejection
f = 120 Hz, CO = 25 µF, IO = 1.5A
VI = 10 ± 3V
RMS Output noise voltage (% of
TA = 25°C, f =10Hz to 10kHz
VO)
S
Temperature stability
S
Long term stability
TA = 125°C, 1000Hrs
1. See short-circuit current curve for available output current at fixed dropout.
14/39
0.01
60
0.04
%/W
75
dB
0.003
%
0.5
%
0.5
%
LD1086xx
Table 10.
Symbol
Electrical characteristics
Electrical characteristics of LD1086#80
(VI = 11 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified).
Parameter
Test condition
Min.
Typ.
Max.
Unit
IO = 0 mA, TJ = 25°C
7.92
8
8.08
V
IO = 0 to 1.5A, VI = 9.8 to 30V
7.84
8
8.16
V
IO = 0 mA, VI = 9.8 to 20V, TJ = 25°C
1
18
mV
IO = 0 mA, VI = 9.8 to 20V
2
18
mV
IO = 0 to 1.5A, TJ = 25°C
8
30
mV
IO = 0 to 1.5A
12
60
mV
VO
Output voltage (1)
ΔVO
Line regulation
ΔVO
Load regulation
Vd
Dropout voltage
IO =1.5A
1.3
1.5
V
Iq
Quiescent current
VI ≤30V
5
10
mA
Isc
Short circuit current
SVR
eN
VI - VO = 5V
1.5
2
A
VI - VO = 25V
0.04
0.2
A
Thermal regulation
TA = 25°C, 30ms pulse
Supply voltage rejection
f = 120 Hz, CO = 25 µF, IO = 1.5A
VI = 13 ± 3V
RMS Output noise voltage (% of
TA = 25°C, f =10Hz to 10kHz
VO)
S
Temperature stability
S
Long term stability
TA = 125°C, 1000Hrs
0.01
54
0.04
%/W
71
dB
0.003
%
0.5
%
0.5
%
1. See short-circuit current curve for available output current at fixed dropout.
15/39
Electrical characteristics
Table 11.
Symbol
VO
ΔVO
LD1086xx
Electrical characteristics of LD1086#12
(VI = 15 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified).
Parameter
Output voltage (1)
Line regulation
Test condition
Min.
Typ.
Max.
Unit
IO = 0 mA, TJ = 25°C
11.88
12
12.12
V
IO = 0 to 1.5A, VI = 13.8 to 30V
11.76
12
12.24
V
IO = 0 mA, VI = 13.8 to 25V,
TJ = 25°C
1
25
mV
IO = 0 mA, VI = 13.8 to 25V
2
25
mV
IO = 0 to 1.5A, TJ = 25°C
12
36
mV
IO = 0 to 1.5A
24
72
mV
1.3
1.5
V
5
10
mA
ΔVO
Load regulation
Vd
Dropout voltage
IO = 1.5A
Iq
Quiescent current
VI ≤30V
Isc
Short circuit current
SVR
eN
VI - VO = 5V
1.5
2
A
VI - VO = 25V
0.05
0.2
A
Thermal regulation
TA = 25°C, 30ms pulse
Supply voltage rejection
f = 120 Hz, CO = 25 µF, IO = 1.5A
VI = 17 ± 3V
RMS Output noise voltage (% of
TA = 25°C, f =10Hz to 10kHz
VO)
S
Temperature stability
S
Long term stability
TA = 125°C, 1000Hrs
1. See short-circuit current curve for available output current at fixed dropout.
16/39
0.01
54
0.04
%/W
66
dB
0.003
%
0.5
%
0.5
%
LD1086xx
Table 12.
Symbol
VO
ΔVO
Electrical characteristics
Electrical characteristics of LD1086#
(VI = 4.25 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified).
Parameter
Test condition
Output voltage (1)
Line Regulation
Min.
Typ.
Max.
Unit
IO = 10mA TJ = 25°C
1.237
1.25
1.263
V
IO = 10mA to 1.5A, VI = 2.85 to 30V
1.225
1.25
1.275
V
IO = 10mA, VI = 2.8 to 16.5V,
TJ = 25°C
0.015
0.2
%
IO = 10mA, VI = 2.8 to 16.5V
0.035
0.2
%
IO = 10mA to 1.5A, TJ = 25°C
0.1
0.3
%
IO = 0 to 1.5A
0.2
0.4
%
ΔVO
Load Regulation
Vd
Dropout Voltage
IO = 1.5A
1.3
1.5
V
Minimum Load Current
VI = 30V
3
10
mA
IO(min)
Isc
Short Circuit Current
VI - VO = 5V
1.5
2.3
A
VI - VO = 25V
0.05
0.2
A
Thermal Regulation
TA = 25°C, 30ms pulse
SVR
Supply Voltage Rejection
f = 120 Hz, CO = 25 µF,CADJ = 25 µF,
IO = 1.5A, VI = 6.25 ± 3V
IADJ
Adjust Pin Current
ΔIADJ
eN
Adjust Pin Current Change
(1)
RMS Output Noise Voltage (%
of VO)
S
Temperature Stability
S
Long Term Stability
0.01
60
0.04
88
%/W
dB
VI = 4.25V, IO = 10 mA
40
120
µA
IO = 10mA to 1.5A, VI = 2.8 to 16.5V
0.2
5
µA
TA = 25°C, f =10Hz to 10kHz
TA = 125°C, 1000Hrs
0.003
%
0.5
%
0.5
%
1. See short-circuit current curve for available output current at fixed dropout.
17/39
Electrical characteristics
Table 13.
Symbol
LD1086xx
Electrical characteristics of LD1086DTTRY and LD1086VY (Automotive Grade)
(VI = 4.25 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified).
Parameter
Test condition
Min.
Typ.
Max.
Unit
IO = 10 mA TA = 25°C
1.237
1.25
1.263
V
IO = 10 mA to 1.5 A, VI = 2.85 to 30 V
1.225
1.25
1.275
V
0.035
0.2
%
VO
Output voltage (1)
ΔVO
Line regulation
IO = 10 mA, VI = 2.8 to 16.5 V
ΔVO
Load regulation
IO = 0 to 1.5 A
0.2
0.4
%
Vd
Dropout voltage
IO = 1.5 A
1.3
1.5
V
Minimum load current
VI = 30 V
3
10
mA
IO(min)
Isc
Short circuit current
VI - VO = 5 V, TA = 25°C
1.5
2.3
A
VI - VO = 25 V, TA = 25°C
0.05
0.2
A
Thermal regulation
TA = 25°C, 30ms pulse
SVR
Supply voltage rejection
f = 120 Hz, CO = 25 µF,CADJ = 25 µF,
IO = 1.5 A, VI = 6.25 ± 3 V, TA = 25°C
IADJ
Adjust pin current
VI = 4.25 V, IO = 10 mA
40
120
μA
ΔIADJ
Adjust pin current change (1)
IO = 10 mA to 1.5 A, VI = 2.8 to 16.5 V
0.2
5
μA
eN
RMS output noise voltage (%
of VO)
TA = 25°C, f =10 Hz to 10 KHz
S
Temperature stability
S
Long term stability
TA = 125°C, 1000 Hrs
1. See short-circuit current curve for available output current at fixed dropout.
18/39
0.01
60
0.04
88
%/W
dB
0.003
%
0.5
%
0.5
%
LD1086xx
Typical application
6
Typical application
Figure 4.
(Unless otherwise specified TJ = 25 °C, CI = CO = 10 µF)
Output voltage vs temperature
Figure 5.
Output voltage vs temperature
Figure 6.
Output voltage vs temperature
Figure 7.
Short circuit current vs dropout
voltage
Figure 8.
Line regulation vs temperature
Figure 9.
Load regulation vs temperature
19/39
Typical application
Figure 10. Dropout voltage vs temperature
LD1086xx
Figure 11. Dropout voltage vs output current
Figure 12. Adjust pin current vs input voltage Figure 13. Adjust pin current vs temperature
Figure 14. Adjust pin current vs output
current
20/39
Figure 15. Quiescent current vs output current
LD1086xx
Typical application
Figure 16. Quiescent current vs input voltage Figure 17. Supply voltage rejection vs output
current
Figure 18. Supply voltage rejection vs
frequency
Figure 19. Supply voltage rejection vs
temperature
Figure 20. Minimum load current vs
temperature
Figure 21. Stability for adjustable
21/39
Typical application
LD1086xx
Figure 22. Stability for 2.85V
Figure 23. Stability for 12V
Figure 24. Line transient
Figure 25. Line transient
VI=12 to 13V, IO=200mA, CI = 1µF(tant), CO=10µF(tant), No
CADJ
VI=12 to 13V, IO=200mA, CI = 1µF(tant), CO=10µF(tant), No
CADJ
Figure 26. Line transient
Figure 27. Load transient
VI=12 to 13V, IO=200mA, CI = 1µF(tant), CO=10µF(tant),
CADJ = 1µF
VI=13V, IO=0.1 to 1.5A, CI = 1µF(tant), CO=10µF(tant)
CADJ =1µF
22/39
LD1086xx
Typical application
Figure 28. Load transient
Figure 29. Thermal protection
VI=13V, IO=0.1 to 1.5A, CI=1µF(tant), CO=10µF(tant),
CADJ =1µF
VO=2.85V
23/39
Package mechanical data
7
LD1086xx
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a lead-free second level interconnect. The category of
second Level Interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
24/39
LD1086xx
Package mechanical data
TO-220 mechanical data
Dim.
mm.
Min.
Typ.
inch.
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
0.70
0.019
0.027
D1
E
1.27
0.49
0.050
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
P011C
25/39
Package mechanical data
LD1086xx
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
26/39
LD1086xx
Package mechanical data
Figure 30. Drawing dimension D2PAK (type STD-ST)
0079457/L
27/39
Package mechanical data
LD1086xx
Figure 31. Drawing dimension D2PAK (type WOOSEOK-SUBCON.)
0079457/L
28/39
LD1086xx
Table 14.
Package mechanical data
D2PAK mechanical data
Dim.
Min.
Type WOOSEOK-SUBCON.
mm.
mm.
Typ.
Max.
Min.
Typ.
Max.
A
4.40
4.60
4.30
4.70
A1
0.03
0.23
0
0.20
b
0.70
0.93
0.70
0.90
b2
1.14
1.70
1.17
1.37
c
0.45
0.60
0.45
0.50
0.60
c2
1.23
1.36
1.25
1.30
1.40
D
8.95
9.35
9
9.20
9.40
D1
7.50
E
10
E1
8.50
e
7.50
10.40
9.80
10.20
7.50
2.54
2.54
e1
4.88
5.28
H
15
15.85
15
J1
2.49
2.69
2.20
2.60
L
2.29
2.79
1.79
2.79
L1
1.27
1.40
1
1.40
L2
1.30
1.75
1.20
1.60
R
V2
Note:
Type STD-ST
5.08
0.4
0°
15.30
15.60
0.30
8°
0°
3°
The D2PAK package coming from the subcontractor Wooseok is fully compatible with the
ST's package suggested footprint.
29/39
Package mechanical data
LD1086xx
Figure 32. D2PAK footprint recommended data
Table 15.
Footprint data
Values
30/39
mm.
inch.
A
12.20
0.480
B
9.75
0.384
C
16.90
0.665
D
3.50
0.138
E
1.60
0.063
F
2.54
0.100
G
5.08
0.200
LD1086xx
Package mechanical data
Figure 33. Drawing dimension D2PAK/A (type STD-ST)
7106164/E
31/39
Package mechanical data
LD1086xx
Figure 34. Drawing dimension D2PAK/A (type WOOSEOK-Subcon.)
7106164/E
32/39
LD1086xx
Table 16.
Package mechanical data
D2PAK/A mechanical data
Dim.
Min.
Type WOOSEOK-Subcon.
mm.
mm.
Typ.
Max.
Min.
Typ.
Max.
A
4.40
4.60
4.30
4.70
A1
0.03
0.23
0
0.20
b
0.70
0.93
0.70
0.90
b1
0.80
1.30
b2
1.14
1.70
1.17
1.37
c
0.45
0.60
0.45
0.50
0.60
c2
1.23
1.36
1.25
1.30
1.40
D
8.95
9.35
9
9.20
9.40
D1
7.50
E
10
E1
8.50
e
7.50
10.40
9.80
10.20
7.50
2.54
2.54
e1
4.88
5.28
H
15
15.85
15
J1
2.49
2.69
2.20
2.60
L
2.29
2.79
1.79
2.79
L1
1.27
1.40
1
1.40
R
V2
Note:
Type STD-ST
5.08
0.4
0°
15.30
15.60
0.30
8°
0°
3°
The D2PAK/A package coming from the subcontractor Wooseok is fully compatible with the
ST's package suggested footprint.
33/39
Package mechanical data
LD1086xx
Figure 35. D2PAK/A footprint recommended data
Table 17.
Footprint data
Values
34/39
mm.
inch.
A
12.20
0.480
B
9.75
0.384
C
16.90
0.665
D
3.50
0.138
E
1.60
0.063
F
2.54
0.100
G
5.08
0.200
LD1086xx
Package mechanical data
Tape & reel DPAK-PPAK mechanical data
mm.
inch.
Dim.
Min.
Typ.
A
Max.
Min.
Typ.
330
13.0
12.992
C
12.8
D
20.2
0.795
N
60
2.362
T
13.2
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
35/39
Package mechanical data
LD1086xx
Tape & reel D2PAK-P2PAK-D2PAK/A-P2PAK/A mechanical data
mm.
inch.
Dim.
Min.
Typ.
A
Min.
Typ.
180
13.0
13.2
Max.
7.086
C
12.8
D
20.2
0.795
N
60
2.362
T
36/39
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
LD1086xx
Order codes
8
Order codes
Table 18.
Order codes
Packages
D2PAK
TO-220
D2PAK/A
DPAK
Output voltage
LD1086D2T15R
LD1086DT15R
1.5 V
LD1086V18
LD1086D2T18TR
LD1086DT18TR
1.8 V
LD1086V25
LD1086D2T25TR
LD1086DT25TR
2.5 V
LD1086V33
LD1086D2T33TR
LD1086DT33TR
3.3 V
LD1086D2M33TR
LD1086V36
3.6 V
LD1086D2T50TR
LD1086DT50TR
5.0 V
LD1086V80
LD1086D2T80TR
LD1086DT80TR
8.0 V
LD1086V12
LD1086D2T12TR
LD1086V
LD1086D2TTR
LD1086VY (1)
12.0 V
LD1086D2MTR
LD1086DTTR
ADJ
LD1086DTTRY (1)
ADJ
1. Automotive Grade products.
37/39
Revision history
LD1086xx
9
Revision history
Table 19.
Document revision history
Date
Revision
25-Aug-2004
11
Mistake VO (typ.), table 9 - pag. 6.
07-Oct-2004
12
Mistake order codes - Table 1.
08-Feb-2005
13
Mistake U.M. Load regulation - V ==> mV.
16-May-2006
14
Order codes updated and new template.
19-Jan-2007
15
D2PAK mechanical data updated and add footprint data.
05-Apr-2007
16
Order codes updated.
07-Jun-2007
17
Order codes updated.
19-Jul-2007
18
Add note on Figure 2.
03-Dec-2007
19
Modified: Table 18.
31-Jan-2008
20
Added new order codes for Automotive grade products.
18-Feb-2008
21
Modified: Table 18 on page 37.
38/39
Changes
LD1086xx
Please Read Carefully:
Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the
right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any
time, without notice.
All ST products are sold pursuant to ST’s terms and conditions of sale.
Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no
liability whatsoever relating to the choice, selection or use of the ST products and services described herein.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this
document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products
or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such
third party products or services or any intellectual property contained therein.
UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED
WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS
OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.
UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT
RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING
APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY,
DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE
GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK.
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void
any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any
liability of ST.
ST and the ST logo are trademarks or registered trademarks of ST in various countries.
Information in this document supersedes and replaces all information previously supplied.
The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.
© 2008 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 of America
www.st.com
39/39