Document Outline
- Figure 1: Schematic Diagram For Adjustable Version
- Figure 2: Schematic Diagram For Fixed Version
- Table 1: Ordering Codes
- Table 2: Absolute Maximum Ratings
- Table 3: Thermal Data
- Figure 3: Pin Connection (top view)
- Figure 4: Application Circuit
- Table 4: Electrical Characteristics Of LD29150#15 (IO = 10mA, TJ = 25 C, VI = 3.5V, VINH = 2V (No...
- Table 5: Electrical Characteristics Of LD29150#18 (IO = 10mA, TJ = 25 C, VI = 3.8V, VINH = 2V (No...
- Table 6: Electrical Characteristics Of LD29150#25 (IO = 10mA, TJ = 25 C, VI = 4.5V, VINH = 2V (No...
- Table 7: Electrical Characteristics Of LD29150#33 (IO = 10mA, TJ = 25 C, VI = 5.3V, VINH = 2V (No...
- Table 8: Electrical Characteristics Of LD29150#50 (IO = 10mA, TJ = 25 C, VI = 7V, VINH = 2V (Note...
- Table 9: Electrical Characteristics Of LD29150#80 (IO = 10mA, TJ = 25 C, VI = 10V, VINH = 2V (Not...
- Table 10: Electrical Characteristics Of LD29150#ADJ (IO = 10mA, TJ = 25 C, VI = 3.23 V, VINH = 2V...
- 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
- Figure 11: Quiescent Current vs Supply Voltage
- Figure 12: Quiescent Current vs Temperature
- Figure 13: Quiescent Current vs Temperature
- Figure 14: Short Circuit Current vs Temperature
- Figure 15: Adjust Pin Current vs Temperature
- Figure 16: Supply Voltage Rejection vs Temperature
- Figure 17: Output Voltage vs Input Voltage
- Figure 18: Stability vs CO
- Figure 19: Line Transient
- Figure 20: Load Transient
- Figure 21: Start-Up Time 10mA
- Figure 22: Start-Up Time 1.5A
- Table 11: Revision History
1/17
November 2004
s
VERY LOW DROPOUT VOLTAGE (TYP. 0.4
AT 1.5A)
s
GUARANTEED OUTPUT CURRENT UP TO
1.5A
s
FIXED AND ADJUSTABLE OUTPUT
VOLTAGE (
1% AT 25C)
s
INTERNAL CURRENT AND THERMAL LIMIT
s
LOGIC CONTROLLED ELECTRONIC
SHUTDOWN AVAILABLE IN PPAK
DESCRIPTION
The LD29150 is a high current, high accuracy,
low-dropout voltage regulator series. These
regulators feature 400mV 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.
LD29150
SERIES
1.5A, VERY LOW DROP VOLTAGE REGULATORS
Figure 1: Schematic Diagram For Adjustable Version
TO-220
DPAK
PPAK
TO-220FP
Rev. 7
LD29150 SERIES
2/17
Figure 2: Schematic Diagram For Fixed Version
* Only for version with inhibit function.
Table 1: Ordering Codes
(*) Available in Tape & Reel with the suffix "R".
(#) Available on request.
Table 2: Absolute Maximum Ratings
(*) Above 14V the device is automatically in shut-down.
Absolute Maximum Ratings are those beyond which damage to the device may occur. Functional operation under these condition is not im-
plied.
TO-220 (#)
TO-220FP (#)
DPAK (*)
PPAK (*)
OUTPUT
VOLTAGE
LD29150V15
LD29150P15
LD29150DT15
LD29150PT15
1.5 V
LD29150V18
LD29150P18
LD29150DT18
LD29150PT18
1.8 V
LD29150V25
LD29150P25
LD29150DT25
LD29150PT25
2.5 V
LD29150V33
LD29150P33
LD29150DT33
LD29150PT33
3.3 V
LD29150V50
LD29150P50
LD29150DT50
LD29150PT50
5.0 V
LD29150V80
LD29150P80
LD29150DT80
LD29150PT80
8.0 V
LD29150PT
ADJ
Symbol
Parameter
Value
Unit
V
I
DC Input Voltage
30 (*)
V
I
O
Output Current
Internally Limited
mA
P
D
Power Dissipation
Internally Limited
mW
T
stg
Storage Temperature Range
-55 to 150
C
T
op
Operating Junction Temperature Range
-40 to 125
C
LD29150 SERIES
3/17
Table 3: Thermal Data
Figure 3: Pin Connection (top view)
* Not connected for fixed version.
Figure 4: Application Circuit
* Only for version with inhibit function.
Symbol
Parameter
DPAK
PPAK
TO-220
TO-220FP
Unit
R
thj-case
Thermal Resistance Junction-case
8
8
3
4
C/W
R
thj-amb
Thermal Resistance Junction-ambient
100
100
50
60
C/W
DPAK
PPAK
TO-220
TO-220FP
R
1
V
O
= V
REF
(1 +
)
R
2
LD29150 SERIES
4/17
Table 4: Electrical Characteristics Of LD29150#15
(I
O
= 10mA, T
J
= 25C, V
I
= 3.5V, V
INH
= 2V (Note 2), C
I
= 330nF, C
O
= 10
F, unless otherwise specified)
NOTE 1: Guaranteed by design.
NOTE 2: Only for version with Inhibit function.
Table 5: Electrical Characteristics Of LD29150#18
(I
O
= 10mA, T
J
= 25C, V
I
= 3.8V, V
INH
= 2V (Note 3), C
I
= 330nF, C
O
= 10
F, unless otherwise specified)
NOTE 1: Guaranteed by design.
NOTE 2: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with V
O
+1V
applied to V
I
.
NOTE 3: Only for version with Inhibit function.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
I
Minimum Operating Input
Voltage
I
O
= 10mA to 1.5A
T
J
= -40 to 125C
2.5
V
V
O
Output Voltage
I
O
= 10mA to 1.5A, V
I
= 3 to 7V
T
J
= -40 to 125C
1.485
1.5
1.515
V
1.47
1.53
V
O
Load Regulation
I
O
= 10mA to 1.5A
0.2
1.0
%
V
O
Line Regulation
V
I
= 3 to 13V
0.06
0.5
%
SVR
Supply Voltage Rejection
f = 120 Hz, V
I
= 3.5
1V, I
O
= 0.75A
(Note 1)
65
75
dB
I
q
Quiescent Current
I
O
= 0.75A, T
J
= -40 to 125C
15
40
mA
I
O
= 1.5A, T
J
= -40 to 125C
30
80
V
I
= 13V, V
INH
= GND T
J
= -40 to 125C
130
180
A
I
sc
Short Circuit Current
V
I
- V
O
= 5.5V
2.2
A
V
IL
Control Input Logic Low
OFF MODE, (NOTE 2) T
J
= -40 to 125C
0.8
V
V
IH
Control Input Logic High
ON MODE, (NOTE 2) T
J
= -40 to 125C
2
V
I
INH
Control Input Current
T
J
= -40 to 125C
V
INH
= 13V
5
10
A
eN
Output Noise Voltage
B
P
= 10Hz to 100KHz
I
O
= 100mA
60
V
RMS
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
I
O
= 10mA to 1.5A, V
I
= 3 to 7.3V
T
J
= -40 to 125C
1.782
1.8
1.818
V
1.764
1.836
V
O
Load Regulation
I
O
= 10mA to 1.5A
0.2
1.0
%
V
O
Line Regulation
V
I
= 3 to 13V
0.06
0.5
%
SVR
Supply Voltage Rejection
f = 120 Hz, V
I
= 3.8
1V, I
O
= 0.75A
(Note 1)
62
72
dB
V
DROP
Dropout Voltage
I
O
= 250mA,T
J
= -40 to 125C (Note 2)
0.1
V
I
O
= 0.75A, T
J
= -40 to 125C (Note 2)
0.2
I
O
= 1.5A, T
J
= -40 to 125C (Note 2)
0.4
0.7
I
q
Quiescent Current
I
O
= 0.75A, T
J
= -40 to 125C
15
40
mA
I
O
= 1.5A, T
J
= -40 to 125C
30
80
V
I
= 13V, V
INH
= GND T
J
= -40 to 125C
130
180
A
I
sc
Short Circuit Current
V
I
- V
O
= 5.5V
2.2
A
V
IL
Control Input Logic Low
OFF MODE, (NOTE 3) T
J
= -40 to 125C
0.8
V
V
IH
Control Input Logic High
ON MODE, (NOTE 3) T
J
= -40 to 125C
2
V
I
INH
Control Input Current
T
J
= -40 to 125C
V
INH
= 13V
5
10
A
eN
Output Noise Voltage
B
P
= 10Hz to 100KHz
I
O
= 100mA
72
V
RMS
LD29150 SERIES
5/17
Table 6: Electrical Characteristics Of LD29150#25
(I
O
= 10mA, T
J
= 25C, V
I
= 4.5V, V
INH
= 2V (Note 3), C
I
= 330nF, C
O
= 10
F, unless otherwise specified)
NOTE 1: Guaranteed by design.
NOTE 2: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with V
O
+1V
applied to V
I
.
NOTE 3: Only for version with Inhibit function.
Table 7: Electrical Characteristics Of LD29150#33
(I
O
= 10mA, T
J
= 25C, V
I
= 5.3V, V
INH
= 2V (Note 3), C
I
= 330nF, C
O
= 10
F, unless otherwise specified)
NOTE 1: Guaranteed by design.
NOTE 2: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with V
O
+1V
applied to V
I
.
NOTE 3: Only for version with Inhibit function.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
I
O
= 10mA to 1.5A, V
I
= 3.5 to 8V
T
J
= -40 to 125C
2.475
2.5
2.525
V
2.45
2.55
V
O
Load Regulation
I
O
= 10mA to 1.5A
0.2
1.0
%
V
O
Line Regulation
V
I
= 3.5 to 13V
0.06
0.5
%
SVR
Supply Voltage Rejection
f = 120 Hz, V
I
= 4.5
1V, I
O
= 0.75A
(Note 1)
55
70
dB
V
DROP
Dropout Voltage
I
O
= 250mA,T
J
= -40 to 125C (Note 2)
0.1
V
I
O
= 0.75A, T
J
= -40 to 125C (Note 2)
0.2
I
O
= 1.5A, T
J
= -40 to 125C (Note 2)
0.4
0.7
I
q
Quiescent Current
I
O
= 0.75A, T
J
= -40 to 125C
15
40
mA
I
O
= 1.5A, T
J
= -40 to 125C
30
80
V
I
= 13V, V
INH
= GND T
J
= -40 to 125C
130
180
A
I
sc
Short Circuit Current
V
I
- V
O
= 5.5V
2.2
A
V
IL
Control Input Logic Low
OFF MODE, (NOTE 3) T
J
= -40 to 125C
0.8
V
V
IH
Control Input Logic High
ON MODE, (NOTE 3) T
J
= -40 to 125C
2
V
I
INH
Control Input Current
T
J
= -40 to 125C
V
INH
= 13V
5
10
A
eN
Output Noise Voltage
B
P
= 10Hz to 100KHz
I
O
= 100mA
100
V
RMS
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
I
O
= 10mA to 1.5A, V
I
= 4.3 to 8.8V
T
J
= -40 to 125C
3.267
3.3
3.333
V
3.234
3.366
V
O
Load Regulation
I
O
= 10mA to 1.5A
0.2
1.0
%
V
O
Line Regulation
V
I
= 4.3 to 13V
0.06
0.5
%
SVR
Supply Voltage Rejection
f = 120 Hz, V
I
= 5.3
1V, I
O
= 0.75A
(Note 1)
52
67
dB
V
DROP
Dropout Voltage
I
O
= 250mA,T
J
= -40 to 125C (Note 2)
0.1
V
I
O
= 0.75A, T
J
= -40 to 125C (Note 2)
0.2
I
O
= 1.5A, T
J
= -40 to 125C (Note 2)
0.4
0.7
I
q
Quiescent Current
I
O
= 0.75A, T
J
= -40 to 125C
15
40
mA
I
O
= 1.5A, T
J
= -40 to 125C
30
80
V
I
= 13V, V
INH
= GND T
J
= -40 to 125C
130
180
A
I
sc
Short Circuit Current
V
I
- V
O
= 5.5V
2.2
A
V
IL
Control Input Logic Low
OFF MODE, (NOTE 3) T
J
= -40 to 125C
0.8
V
V
IH
Control Input Logic High
ON MODE, (NOTE 3) T
J
= -40 to 125C
2
V
I
INH
Control Input Current
T
J
= -40 to 125C
V
INH
= 13V
5
10
A
eN
Output Noise Voltage
B
P
= 10Hz to 100KHz
I
O
= 100mA
132
V
RMS
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