LD29150
1.5 A, very low drop voltage regulators
Datasheet - production data
Description
The LD29150 is a high current, high accuracy,
low-dropout voltage regulator series. These
regulators feature 400 mV dropout voltage and
very low ground current. Designed for high
current loads, these devices are also used in
lower current, extremely low dropout-critical
systems, where their tiny dropout voltage and
ground current values are important attributes.
Typical applications are in power supply switching
post regulation, series power supply for monitors,
series power supply for VCRs and TVs, computer
systems and battery powered systems.
Features
Very low dropout voltage (typ. 0.4 at 1.5 A)
Guaranteed output current up to 1.5 A
Fixed and adjustable output voltage (± 1% at
25 °C)
Internal current and thermal limit
Logic controlled electronic shutdown available
in PPAK
Table 1. Device summary
Order codes
Output voltages
DPAK
PPAK
LD29150DT18R
1.8 V
LD29150DT25R
2.5 V
LD29150DT33R
3.3 V
LD29150DT50R
August 2017
This is information on a product in full production.
LD29150PT50R
5.0 V
LD29150PTR
ADJ
DocID9614 Rev 20
1/23
www.st.com
Contents
LD29150
Contents
1
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6
Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8
7.1
DPAK package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.2
PPAK package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Packaging information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8.1
9
2/23
PPAK and DPAK packaging information . . . . . . . . . . . . . . . . . . . . . . . . . 20
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
DocID9614 Rev 20
LD29150
1
Diagram
Diagram
Figure 1. Schematic diagram for adjustable version
Figure 2. Schematic diagram for fixed version
* Only for version with inhibit function.
DocID9614 Rev 20
3/23
23
Pin configuration
2
LD29150
Pin configuration
Figure 3. Pin connections (top view)
PPAK
DPAK
* Not connected for fixed version.
4/23
DocID9614 Rev 20
LD29150
3
Typical application
Typical application
Figure 4. Application circuit
V O = V REF (1 + R 1/R 2 )
* Only for version with inhibit function.
DocID9614 Rev 20
5/23
23
Maximum ratings
4
LD29150
Maximum ratings
Table 2. Absolute maximum ratings
Symbol
Parameter
Value
Unit
(1)
VI
DC input voltage
VO
DC output voltage
-0.3 to 20
V
Inhibit input voltage
-0.3 to 20
V
VINH
30
V
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
1. Above 14 V the device is automatically in shut-down.
Note:
Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these conditions is not implied.
Table 3. Thermal data
Symbol
6/23
Parameter
RthJA
Thermal resistance junction-ambient
RthJC
Thermal resistance junction-case
DocID9614 Rev 20
DPAK
PPAK
Unit
100
100
°C/W
8
8
°C/W
LD29150
Electrical characteristics
5
Electrical characteristics
IO = 10 mA, TJ = 25 °C, VI = 3.8 V, VINH = 2 V (Note 3), CI = 330 nF, CO = 10 µF, unless
otherwise specified.
Table 4. Electrical characteristics of LD29150#18
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
1.782
1.8
1.818
Unit
VO
Output voltage
IO = 10 mA to 1.5 A, VI = 3 to 7.3 V
TJ = - 40 to 125 °C
VO
Load regulation
IO = 10 mA to 1.5 A
0.2
1.0
%
VO
Line regulation
VI = 3 to 13 V
0.06
0.5
%
SVR
Supply voltage rejection
f = 120 Hz, VI = 3.81 V, IO = 0.75 A
(Note 1)
VDROP
Iq
Dropout voltage
Quiescent current
1.764
62
1.836
72
V
dB
IO = 250 mA, TJ = - 40 to 125 °C (Note 2)
0.1
IO = 0.75 A, TJ = - 40 to 125 °C (Note 2)
0.2
IO = 1.5 A, TJ = - 40 to 125 °C (Note 2)
0.4
0.7
IO = 0.75 A, TJ = - 40 to 125 °C
15
40
IO = 1.5 A, TJ = - 40 to 125 °C
30
80
VI = 13 V, VINH = GND, TJ = - 40 to 125°C
130
180
2.2
V
mA
µA
Isc
Short circuit current
VI - VO = 5.5 V
VIL
Control input logic low
OFF MODE, (Note 3), TJ = - 40 to 125°C
VIH
Control input logic high
ON MODE, (Note 3), TJ = - 40 to 125 °C
IINH
Control input current
TJ = - 40 to 125 °C, VINH = 13 V
5
eN
Output noise voltage
BP = 10 Hz to 100 kHz, IO = 100 mA
(Note 1)
72
µVRMS
150
°C
TSHDN
Note:
Thermal shutdown
A
0.8
2
V
V
10
µA
1
Guaranteed by design.
2
Dropout voltage is defined as the input-to-output differential when the output voltage drops
to 99 % of its nominal value with VO + 1 V applied to VI.
3
Only for version with Inhibit function.
DocID9614 Rev 20
7/23
23
Electrical characteristics
LD29150
IO = 10 mA, TJ = 25 °C, VI = 4.5 V, VINH = 2 V (Note 3), CI = 330 nF, CO = 10 µF, unless
otherwise specified.
Table 5. Electrical characteristics of LD29150#25
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
2.475
2.5
2.525
Unit
VO
Output voltage
IO = 10 mA to 1.5 A, VI = 3.5 to 8 V
TJ = - 40 to 125 °C
VO
Load regulation
IO = 10 mA to 1.5 A
0.2
1.0
%
VO
Line regulation
VI = 3.5 to 13 V
0.06
0.5
%
SVR
Supply voltage rejection
f = 120 Hz, VI = 4.51 V, IO = 0.75 A
(Note 1)
VDROP
Iq
Dropout voltage
Quiescent current
0.2
IO = 1.5 A, TJ = - 40 to 125 °C (Note 2)
0.4
0.7
IO = 0.75 A, TJ = - 40 to 125 °C
15
40
IO = 1.5 A, TJ = - 40 to 125 °C
30
80
VI = 13 V, VINH = GND, TJ = - 40 to 125°C
130
180
2.2
VIL
Control input logic low
OFF MODE, (Note 3), TJ = - 40 to 125 °C
VIH
Control input logic high
ON MODE, (Note 3), TJ = - 40 to 125 °C
IINH
Control input current
TJ = - 40 to 125 °C, VINH = 13 V
eN
Output noise voltage
BP = 10 Hz to 100 kHz, IO = 100 mA
(Note 1)
Thermal shutdown
V
dB
IO = 0.75 A, TJ = - 40 to 125 °C (Note 2)
VI - VO = 5.5 V
8/23
70
0.1
Short circuit current
Note:
55
2.55
IO = 250 mA, TJ = - 40 to 125 °C (Note 2)
Isc
TSHDN
2.45
V
mA
µA
A
0.8
2
V
V
5
10
µA
100
µVRMS
150
°C
1
Guaranteed by design.
2
Dropout voltage is defined as the input-to-output differential when the output voltage drops
to 9 9% of its nominal value with VO + 1 V applied to VI.
3
Only for version with Inhibit function.
DocID9614 Rev 20
LD29150
Electrical characteristics
IO = 10 mA, TJ = 25 °C, VI = 5.3 V, VINH = 2 V (Note 3), CI = 330 nF, CO = 10 µF, unless
otherwise specified.
Table 6. Electrical characteristics of LD29150#33
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
3.267
3.3
3.333
Unit
VO
Output voltage
IO = 10 mA to 1.5 A, VI = 4.3 to 8.8 V
TJ = - 40 to 125 °C
VO
Load regulation
IO = 10 mA to 1.5 A
0.2
1.0
%
VO
Line regulation
VI = 4.3 to 13 V
0.06
0.5
%
SVR
Supply voltage rejection
f = 120 Hz, VI = 5.31 V, IO = 0.75 A
(Note 1)
VDROP
Iq
Dropout voltage
Quiescent current
67
IO = 0.75 A, TJ = - 40 to 125 °C (Note 2)
0.2
IO = 1.5 A, TJ = - 40 to 125 °C (Note 2)
0.4
0.7
IO = 0.75 A, TJ = - 40 to 125 °C
15
40
IO = 1.5 A, TJ = - 40 to 125 °C
30
80
VI = 13 V, VINH = GND, TJ = - 40 to 125°C
130
180
2.2
VI - VO = 5.5 V
VIL
Control input logic low
OFF MODE, (Note 3), TJ = - 40 to 125 °C
VIH
Control input logic high
ON MODE, (Note 3), TJ = - 40 to 125 °C
IINH
Control input current
TJ = - 40 to 125 °C, VINH = 13 V
eN
Output noise voltage
BP = 10 Hz to 100 kHz, IO = 100 mA
(Note 1)
Thermal shutdown
V
dB
0.1
Short circuit current
Note:
52
3.366
IO = 250 mA, TJ = - 40 to 125 °C (Note 2)
Isc
TSHDN
3.234
V
mA
µA
A
0.8
2
V
V
5
10
µA
132
µVRMS
150
°C
1
Guaranteed by design.
2
Dropout voltage is defined as the input-to-output differential when the output voltage drops
to 99 % of its nominal value with VO + 1 V applied to VI.
3
Only for version with Inhibit function.
DocID9614 Rev 20
9/23
23
Electrical characteristics
LD29150
IO = 10 mA, TJ = 25 °C, VI = 7 V, VINH = 2 V (Note 3), CI = 330 nF, CO = 10 µF, unless
otherwise specified.
Table 7. Electrical characteristics of LD29150#50
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
4.95
5
5.05
Unit
VO
Output voltage
IO = 10 mA to 1.5 A, VI = 6 to 10.5 V
TJ = - 40 to 125 °C
VO
Load regulation
IO = 10 mA to 1.5 A
0.2
1.0
%
VO
Line regulation
VI = 6 to 13 V
0.06
0.5
%
SVR
Supply voltage rejection
f = 120 Hz, VI = 71 V, IO = 0.75 A
(Note 1)
VDROP
Iq
Dropout voltage
Quiescent current
0.2
IO = 1.5 A, TJ = - 40 to 125 °C (Note 2)
0.4
0.7
IO = 0.75 A, TJ = - 40 to 125 °C
15
40
IO = 1.5 A, TJ = - 40 to 125 °C
30
80
VI = 13 V, VINH = GND, TJ = - 40 to 125°C
130
180
2.2
VIL
Control input logic low
OFF MODE, (Note 3), TJ = - 40 to 125 °C
VIH
Control input logic high
ON MODE, (Note 3), TJ = - 40 to 125 °C
IINH
Control input current
TJ = - 40 to 125 °C, VINH = 13 V
eN
Output noise voltage
BP = 10 Hz to 100 kHz, IO = 100 mA
(Note 1)
Thermal shutdown
V
dB
IO = 0.75 A, TJ = - 40 to 125 °C (Note 2)
VI - VO = 5.5 V
10/23
64
0.1
Short circuit current
Note:
49
5.1
IO = 250 mA, TJ = - 40 to 125 °C (Note 2)
Isc
TSHDN
4.9
V
mA
µA
A
0.8
2
V
V
5
10
µA
200
µVRMS
150
°C
1
Guaranteed by design.
2
Dropout voltage is defined as the input-to-output differential when the output voltage drops
to 99 % of its nominal value with VO + 1 V applied to VI.
3
Only for version with Inhibit function.
DocID9614 Rev 20
LD29150
Electrical characteristics
IO = 10 mA, TJ = 25 °C, VI = 3.23 V, VINH = 2 V (Note 3), CI = 330 nF, CO = 10 µF adjust pin
tied to output pin.
Table 8. Electrical characteristics of LD29150#ADJ
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Minimum operating input
voltage
IO = 10 mA to 1.5 A, TJ = - 40 to 125 °C
VO
Load regulation
IO = 10 mA to 1.5 A
0.2
1.0
%
VO
Line regulation
VI = 2.5 V to 13 V, IO = 10 mA
0.06
0.5
%
VREF
Reference voltage
IO = 10 mA to 1.5 A, VI = 2.5 to 4.5 V
TJ = - 40 to 125 °C (Note 2)
1.23
+1%
SVR
Supply voltage rejection
f = 120 Hz, VI = 3.231 V, IO = 0.75 A
(Note 1)
VI
Iq
Quiescent current
2.5
-1%
V
-2%
45
+2%
75
V
dB
IO = 0.75 A, TJ = - 40 to 125 °C
15
40
IO = 1.5 A, TJ = - 40 to 125 °C
30
80
VI = 13 V, VINH = GND, TJ = - 40 to 125°C
130
180
µA
1
µA
mA
Adjust pin current
TJ = - 40 to 125 °C (Note 1)
Isc
Short circuit current
VI - VO = 5.5 V
VIL
Control input logic low
OFF MODE, (Note 3),TJ = - 40 to 125 °C
VIH
Control input logic high
ON MODE, (Note 3), TJ = - 40 to 125 °C
IINH
Control input current
TJ = - 40 to 125 °C, VINH = 13 V
5
eN
Output noise voltage
BP = 10 Hz to 100 kHz, IO = 100 mA
(Note 1)
50
µVRMS
150
°C
IADJ
TSHDN
Note:
Thermal shutdown
2.2
A
0.8
2
V
V
10
µA
1
Guaranteed by design.
2
Reference voltage is measured between output and GND pin, with ADJ PIN tied to VOUT.
3
Only for version with Inhibit function.
DocID9614 Rev 20
11/23
23
Typical characteristics
6
LD29150
Typical characteristics
Figure 5. Output voltage vs. temperature
Figure 6. Reference voltage vs. temperature
Figure 7. Dropout voltage vs. temperature
Figure 8. Dropout voltage vs. output current
Figure 9. Quiescent current vs. output current Figure 10. Quiescent current vs. output current
(VI = 13 V)
(VI = 4.5 V)
12/23
DocID9614 Rev 20
LD29150
Typical characteristics
Figure 11. Quiescent current vs. supply voltage
Figure 12. Quiescent current vs. temperature
(IO = 10 mA)
Figure 13. Quiescent current vs. temperature
(IO = 1.5 A)
Figure 14. Short circuit current vs. temperature
Figure 15. Adjust pin current vs. temperature
Figure 16. Supply voltage rejection vs.
temperature
DocID9614 Rev 20
13/23
23
Typical characteristics
LD29150
Figure 17. Output voltage vs. input voltage
Figure 18. Stability vs. CO
Figure 19. Line transient
Figure 20. Load transient
VI=3.5 to 5.5V, IO=10mA, VO=2.5V, CO=10µF
VI=5V, IO=10mA to 1.5A, VO=2.5V, CO=10µF
Figure 21. Start-up time 10 mA
CO=10µF, IO=10mA, VINH=2V, VO=5V, VI=7V
14/23
Figure 22. Start-up time 1.5 A
CO=10µF, IO=1.5A, VINH=2V, VO=5V, VI=7V
DocID9614 Rev 20
LD29150
7
Package information
Package information
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.
7.1
DPAK package information
Table 9. DPAK mechanical data
mm
Dim.
Min.
Typ.
Max.
A
2.20
2.40
A1
0.90
1.10
A2
0.03
0.23
b
0.64
0.90
b4
5.20
5.40
c
0.45
0.60
c2
0.48
0.60
D
6.00
6.20
D1
E
5.10
6.40
6.60
E1
4.70
e
2.28
e1
4.40
4.60
H
9.35
10.10
L
1.00
1.50
(L1)
2.80
L2
0.80
L4
0.60
1.00
R
V2
0.20
0°
8°
DocID9614 Rev 20
15/23
23
Package information
LD29150
Figure 23. DPAK outline
0068772_K
0068772_K
16/23
DocID9614 Rev 20
LD29150
Package information
Figure 24. DPAK footprint (a)
Footprint_REV_K
a. All dimensions are in millimeters
DocID9614 Rev 20
17/23
23
Package information
7.2
LD29150
PPAK package information
Table 10. PPAK mechanical data
mm
Dim.
Min.
Max.
A
2.2
2.4
A1
0.9
1.1
A2
0.03
0.23
B
0.4
0.6
B2
5.2
5.4
C
0.45
0.6
C2
0.48
0.6
D
6
6.2
D1
E
5.1
6.4
E1
6.6
4.7
e
1.27
G
4.9
5.25
G1
2.38
2.7
H
9.35
10.1
L2
0.8
L4
0.6
L5
1
L6
1
1
2.8
R
V2
18/23
Typ.
0.20
0°
DocID9614 Rev 20
8°
LD29150
Package information
Figure 25. PPAK outline
0078180_F
DocID9614 Rev 20
19/23
23
Packaging information
LD29150
8
Packaging information
8.1
PPAK and DPAK packaging information
Table 11. PPAK and DPAK tape and reel mechanical data
Tape
Reel
mm
mm
Dim.
Dim.
Min.
Max.
A0
6.8
7
A
B0
10.4
10.6
B
1.5
12.1
C
12.8
1.6
D
20.2
G
16.4
50
B1
20/23
Min.
Max.
330
13.2
D
1.5
D1
1.5
E
1.65
1.85
N
F
7.4
7.6
T
K0
2.55
2.75
P0
3.9
4.1
Base qty.
2500
P1
7.9
8.1
Bulk qty.
2500
P2
1.9
2.1
R
40
T
0.25
0.35
W
15.7
16.3
DocID9614 Rev 20
18.4
22.4
LD29150
Packaging information
Figure 26. Tape for PPAK and DPAK
10 pitches cumulative
tolerance on tape +/- 0.2 mm
T
P0
Top cover
tape
P2
D
E
F
B1
W
K0
B0
For machine ref. only
including draft and
radii concentric around B0
A0
P1
D1
User direction of feed
R
Bending radius
User direction of feed
AM08852v1
Figure 27. Reel for PPAK and DPAK
T
REEL DIMENSIONS
40mm min.
Access hole
At slot location
B
D
C
N
A
Full radius
Tape slot
in core for
tape start 25 mm min.
width
G measured at hub
AM08851v2
DocID9614 Rev 20
21/23
23
Revision history
9
LD29150
Revision history
Table 12. Document revision history
22/23
Date
Revision
Changes
17-Jun-2004
5
Add figures 20 and 21, PPAK, TO-220 and TO-220FP mechanical
data updated.
19-Jul-2004
6
Remove Package TO-220FP4.
08-Nov-2004
7
Mistake Figure 7.
21-Mar-2005
8
Add VO and VINH on Table 2.
21-Oct-2005
9
Order Codes Has Been Updated.
17-Oct-2006
10
Add new package P²PAK.
13-Nov-2006
11
Add row TSHDN on tables of the electrical characteristics.
11-May-2007
12
Order codes updated.
15-Feb-2008
13
Added: Table 1 on page 1.
28-Jul-2009
14
Modified: Table 1 on page 1.
22-Sep-2010
15
Modified: Table 1 on page 1.
27-Oct-2010
16
Updated: DPAK mechanical data on page 25.
07-May-2012
17
Modified: pin connections for PPAK, P²PAK and DPAK Figure 3 on
page 4.
06-Sep-2012
18
Updated: figure for P²PAK in cover page.
30-Oct-2013
19
Changed the LD29150XX to LD29150.
Updated: Description in cover page.
Updated Section 5: Electrical characteristics and Section 7: Package
mechanical data.
Added Section 8: Packaging mechanical data.
Minor text changes.
30-Aug-2017
20
Removed P²PAK package option (order code LD29150P2T33R)
DocID9614 Rev 20
LD29150
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DocID9614 Rev 20
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