LD1084D2T28TR [STMICROELECTRONICS]

2.85V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSSO2, D2PAK-3;
LD1084D2T28TR
型号: LD1084D2T28TR
厂家: ST    ST
描述:

2.85V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSSO2, D2PAK-3

输出元件 调节器
文件: 总20页 (文件大小:805K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
LD1084  
SERIES  
5A LOW DROP POSITIVE VOLTAGE  
REGULATOR ADJUSTABLE AND FIXED  
I
I
TYPICAL DROPOUT 1.3V (AT 5A)  
THREE TERMINAL ADJUSTABLE OR FIXED  
OUTPUT VOLTAGE 1.5, 1.8V, 2.5V, 2.85V,  
3.3V, 3.6V, 5V, 8V, 9V, 12V.  
I
I
GUARANTEED OUTPUT CURRENT UP TO  
5A  
OUPUT TOLERANCE ± 1% AT 25°C AND  
± 2% IN FULL TEMPERATURE RANGE  
2
D PAK  
I
I
INTERNAL POWER AND THERMAL LIMIT  
WIDE OPERATING TEMPERATURE RANGE  
-40°C TO 125°C  
TO-220  
2
I
I
PACKAGE AVAILABLE: TO-220, D PAK,  
2
2
D PAK/A  
D PAK/A  
PINOUT COMPATIBILITY WITH STANDARD  
ADJUSTABLE VREG  
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 LD1084 quiescent current flows into  
the load, so increase efficiency. Only a 10µF  
minimum capacitor is need for stability.  
The device is supplied in TO-220, D PAK and  
D PAK/A. On chip trimming allows the regulator to  
reach a very tight output voltage tolerance, within  
±1% at 25°C.  
DESCRIPTION  
The LD1084 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 LD1084 is pin to pin compatible with  
the older 3-terminal adjustable regulators, but has  
better performances in term of drop and output  
tolerance.  
2
2
Figure 1: Schematic Diagram  
Rev. 4  
1/20  
February 2005  
LD1084 SERIES  
Figure 2: Application Circuits  
R
R
2
V
= V  
(1 + )  
O
REF  
1
Figure 3: Pin Connection (top view)  
TO-220  
2
2
D PAK  
D PAK/A  
Table 1: Order Codes  
2
2
TYPE  
OUTPUT VOLTAGE  
D PAK (*)  
D PAK/A  
LD1084V15  
LD1084V18  
LD1084V25  
LD1084V28  
LD1084V33  
LD1084V36  
LD1084V50  
LD1084V80  
LD1084V90  
LD1084V12  
LD1084V  
LD1084D2T15  
LD1084D2T18  
LD1084D2T25  
LD1084D2T28  
LD1084D2T33  
LD1084D2T36  
LD1084D2T50  
LD1084D2T80  
LD1084D2T90  
LD1084D2T12  
LD1084D2T  
LD1084D2M15  
LD1084D2M18  
LD1084D2M25  
LD1084D2M28  
LD1084D2M33  
LD1084D2M36  
LD1084D2M50  
LD1084D2M80  
LD1084D2M90  
LD1084D2M12  
LD1084D2M  
1.5 V  
1.8 V  
2.5 V  
2.85 V  
3.3 V  
3.6 V  
5.0 V  
8.0 V  
9.0 V  
12.0 V  
ADJ  
(*) Available in Tape & Reel with the suffix "R" for fixed versions and "-R" for adjustable version  
2/20  
LD1084 SERIES  
Table 2: Absolute Maximum Ratings  
Symbol  
Parameter  
Value  
Unit  
V
DC Input Voltage  
30  
V
mA  
mW  
°C  
I
I
Output Current  
Internally Limited  
Internally Limited  
-55 to +150  
O
P
Power Dissipation  
D
T
Storage Temperature Range  
Operating Junction Temperature Range  
stg  
T
-40 to +125  
°C  
op  
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  
2
Symbol  
Parameter  
Thermal Resistance Junction-case  
Thermal Resistance Junction-ambient  
TO-220  
Unit  
D PAK  
R
3
3
°C/W  
°C/W  
thj-case  
R
50  
62.5  
thj-amb  
Table 4: Electrical Characteristics Of LD1084#15 (V =4.5V, C = C =10µF, T = -40 to 125°C, unless  
I
I
O
A
otherwise specified.)  
Symbol  
Parameter  
Test Conditions  
Min.  
1.485  
1.47  
Typ.  
1.5  
1.5  
0.5  
0.1  
3
Max.  
1.515  
1.53  
6
Unit  
V
V
Output Voltage  
Line Regulation  
Load Regulation  
I
I
I
I
I
I
I
= 0 mA T = 25°C  
J
O
O
O
O
O
O
O
O
= 0 to 5AV = 3.1 to 30V (note 1)  
V
I
V  
V  
= 0 mA V = 3.1 to 18V T = 25°C  
mV  
mV  
mV  
mV  
V
O
O
I
J
= 0 mA V = 3.1 to 15V  
6
I
= 0 to 5AT = 25°C  
15  
J
= 0 to 5A  
=5 A  
7
20  
V
I
Dropout Voltage  
1.3  
5
1.5  
10  
d
Quiescent Current  
Short Circuit Current  
V 30V  
mA  
A
q
I
I
V - V = 5V  
5.5  
0.5  
6.5  
0.7  
sc  
I
O
V - V = 25V  
A
I
O
Thermal Regulation  
T = 25°C, 30ms pulse  
0.003 0.015  
75  
%/W  
dB  
A
SVR Supply Voltage Rejection  
f = 120 Hz, C = 25 µF,  
I
= 5A  
60  
O
O
V = 6.8 ± ±3V  
I
eN  
RMS Output Noise Voltage T = 25°C f =10Hz to 10KHz  
0.003  
%
A
(% of V )  
O
S
S
Temperature Stability  
Long Term Stability  
0.5  
0.5  
%
%
T = 125°C 1000Hrs  
A
NOTE 1: See short-circuit current curve for available output current at fixed dropout.  
3/20  
LD1084 SERIES  
Table 5: Electrical Characteristics Of LD1084#18 (V =4.8V, C = C =10µF, T = -40 to 125°C, unless  
I
I
O
A
otherwise specified.)  
Symbol  
Parameter  
Test Conditions  
Min.  
1.782  
1.764  
Typ.  
1.8  
1.8  
0.5  
0.1  
3
Max.  
1.818  
1.836  
6
Unit  
V
V
Output Voltage  
Line Regulation  
Load Regulation  
I
I
I
I
I
I
I
= 0 mA T = 25°C  
J
O
O
O
O
O
O
O
O
= 0 to 5AV = 3.4 to 30V (note 1)  
V
I
V  
V  
= 0 mA V = 3.4 to 18V T = 25°C  
mV  
mV  
mV  
mV  
V
O
O
I
J
= 0 mA V = 3.4 to 15V  
6
I
= 0 to 5AT = 25°C  
15  
J
= 0 to 5A  
=5 A  
7
20  
V
I
Dropout Voltage  
1.3  
5
1.5  
10  
d
Quiescent Current  
Short Circuit Current  
V 30V  
mA  
A
q
I
I
V - V = 5V  
5.5  
0.5  
6.5  
0.7  
sc  
I
O
V - V = 25V  
A
I
O
Thermal Regulation  
T = 25°C, 30ms pulse  
0.003 0.015  
75  
%/W  
dB  
A
SVR Supply Voltage Rejection  
f = 120 Hz, C = 25 µF,  
I
= 5A  
60  
O
O
V = 6.8 ± ±3V  
I
eN  
RMS Output Noise Voltage T = 25°C f =10Hz to 10KHz  
0.003  
%
A
(% of V )  
O
S
S
Temperature Stability  
Long Term Stability  
0.5  
0.5  
%
%
T = 125°C 1000Hrs  
A
NOTE 1: See short-circuit current curve for available output current at fixed dropout.  
Table 6: Electrical Characteristics Of LD1084#25 (V =5.5V, C = C =10µF, T = -40 to 125°C, unless  
I
I
O
A
otherwise specified.)  
Symbol  
Parameter  
Test Conditions  
Min.  
2.475  
2.45  
Typ.  
2.5  
2.5  
0.5  
0.1  
3
Max.  
2.525  
2.55  
6
Unit  
V
V
Output Voltage  
Line Regulation  
Load Regulation  
I
I
I
I
I
I
I
= 0 mA T = 25°C  
J
O
O
O
O
O
O
O
O
= 0 to 5AV = 4.1 to 30V (note 1)  
V
I
V  
V  
= 0 mA V = 4.1 to 18V T = 25°C  
mV  
mV  
mV  
mV  
V
O
O
I
J
= 0 mA V = 4.1 to 18V  
6
I
= 0 to 5AT = 25°C  
15  
J
= 0 to 5A  
=5 A  
7
20  
V
I
Dropout Voltage  
1.3  
5
1.5  
10  
d
Quiescent Current  
Short Circuit Current  
V 30V  
mA  
A
q
I
I
V - V = 5V  
5.5  
0.5  
6.5  
0.7  
sc  
I
O
V - V = 25V  
A
I
O
Thermal Regulation  
T = 25°C, 30ms pulse  
0.003 0.015  
72  
%/W  
dB  
A
SVR Supply Voltage Rejection  
f = 120 Hz, C = 25 µF,  
I
= 5A  
60  
O
O
V = 7.5 ± ±3V  
I
eN  
RMS Output Noise Voltage T = 25°C f =10Hz to 10KHz  
0.003  
%
A
(% of V )  
O
S
S
Temperature Stability  
Long Term Stability  
0.5  
0.5  
%
%
T = 125°C 1000Hrs  
A
NOTE 1: See short-circuit current curve for available output current at fixed dropout.  
4/20  
LD1084 SERIES  
Table 7: Electrical Characteristics Of LD1084#285 (V =5.85V, C = C =10µF, T = -40 to 125°C,  
I
I
O
A
unless otherwise specified.)  
Symbol  
Parameter  
Output Voltage  
Test Conditions  
Min.  
2.821  
2.793  
Typ.  
2.85  
2.85  
0.5  
0.1  
3
Max.  
2.879  
2.907  
6
Unit  
V
V
I
I
I
I
I
I
I
= 0 mA T = 25°C  
J
O
O
O
O
O
O
O
O
= 0 to 5AV = 4.5 to 30V (note 1)  
V
I
V  
V  
Line Regulation  
Load Regulation  
= 0 mA V = 4.5 to 18V T = 25°C  
mV  
mV  
mV  
mV  
V
O
O
I
J
= 0 mA V = 4.5 to 18V  
6
I
= 0 to 5AT = 25°C  
15  
J
= 0 to 5A  
=5 A  
7
20  
V
I
Dropout Voltage  
1.3  
5
1.5  
10  
d
Quiescent Current  
Short Circuit Current  
V 30V  
mA  
A
q
I
I
V - V = 5V  
5.5  
0.5  
6.5  
0.7  
sc  
I
O
V - V = 25V  
A
I
O
Thermal Regulation  
T = 25°C, 30ms pulse  
0.003 0.015  
72  
%/W  
dB  
A
SVR Supply Voltage Rejection  
f = 120 Hz, C = 25 µF,  
I
= 5A  
60  
O
O
V = 7.85 ± ±3V  
I
eN  
RMS Output Noise Voltage T = 25°C f =10Hz to 10KHz  
0.003  
%
A
(% of V )  
O
S
S
Temperature Stability  
Long Term Stability  
0.5  
0.5  
%
%
T = 125°C 1000Hrs  
A
NOTE 1: See short-circuit current curve for available output current at fixed dropout.  
Table 8: Electrical Characteristics Of LD1084#33 (V =6.3V, C = C =10µF, T = -40 to 125°C, unless  
I
I
O
A
otherwise specified.)  
Symbol  
Parameter  
Test Conditions  
Min.  
3.267  
3.234  
Typ.  
3.3  
3.35  
0.5  
0.1  
3
Max.  
3.333  
3.366  
6
Unit  
V
V
Output Voltage  
Line Regulation  
Load Regulation  
I
I
I
I
I
I
I
= 0 mA T = 25°C  
J
O
O
O
O
O
O
O
O
= 0 to 5AV = 4.9 to 30V (note 1)  
V
I
V  
V  
= 0 mA V = 4.9 to 18V T = 25°C  
mV  
mV  
mV  
mV  
V
O
O
I
J
= 0 mA V = 4.9 to 18V  
6
I
= 0 to 5AT = 25°C  
15  
J
= 0 to 5A  
=5 A  
7
20  
V
I
Dropout Voltage  
1.3  
5
1.5  
10  
d
Quiescent Current  
Short Circuit Current  
V 30V  
mA  
A
q
I
I
V - V = 5V  
5.5  
0.5  
6.5  
0.7  
sc  
I
O
V - V = 25V  
A
I
O
Thermal Regulation  
T = 25°C, 30ms pulse  
0.003 0.015  
72  
%/W  
dB  
A
SVR Supply Voltage Rejection  
f = 120 Hz, C = 25 µF,  
I
= 5A  
60  
O
O
V = 8.3 ± ±3V  
I
eN  
RMS Output Noise Voltage T = 25°C f =10Hz to 10KHz  
0.003  
%
A
(% of V )  
O
S
S
Temperature Stability  
Long Term Stability  
0.5  
0.5  
%
%
T = 125°C 1000Hrs  
A
NOTE 1: See short-circuit current curve for available output current at fixed dropout.  
5/20  
LD1084 SERIES  
Table 9: Electrical Characteristics Of LD1084#36 (V =6.6V, C = C =10µF, T = -40 to 125°C, unless  
I
I
O
A
otherwise specified.)  
Symbol  
Parameter  
Test Conditions  
Min.  
3.564  
3.528  
Typ.  
3.6  
3.6  
0.5  
0.1  
3
Max.  
3.636  
3.672  
10  
Unit  
V
V
Output Voltage  
Line Regulation  
Load Regulation  
I
I
I
I
I
I
I
= 0 mA T = 25°C  
J
O
O
O
O
O
O
O
O
= 0 to 5AV = 5.2 to 30V (note 1)  
V
I
V  
V  
= 0 mA V = 5.2 to 18V T = 25°C  
mV  
mV  
mV  
mV  
V
O
O
I
J
= 0 mA V = 5.2 to 18V  
10  
I
= 0 to 5AT = 25°C  
15  
J
= 0 to 5A  
=5 A  
7
20  
V
I
Dropout Voltage  
1.3  
5
1.5  
d
Quiescent Current  
Short Circuit Current  
V 30V  
10  
mA  
A
q
I
I
V - V = 5V  
5.5  
0.5  
6.5  
0.7  
sc  
I
O
V - V = 25V  
A
I
O
Thermal Regulation  
T = 25°C, 30ms pulse  
0.003 0.015  
72  
%/W  
dB  
A
SVR Supply Voltage Rejection  
f = 120 Hz, C = 25 µF,  
I
= 5A  
60  
O
O
V = 8.6 ± ±3V  
I
eN  
RMS Output Noise Voltage T = 25°C f =10Hz to 10KHz  
0.003  
%
A
(% of V )  
O
S
S
Temperature Stability  
Long Term Stability  
0.5  
0.5  
%
%
T = 125°C 1000Hrs  
A
NOTE 1: See short-circuit current curve for available output current at fixed dropout.  
Table 10: Electrical Characteristics Of LD1084#5 (V =8V, C = C =10µF, T = -40 to 125°C, unless  
I
I
O
A
otherwise specified.)  
Symbol  
Parameter  
Test Conditions  
Min.  
Typ.  
5
Max.  
5.05  
5.1  
10  
Unit  
V
V
Output Voltage  
Line Regulation  
Load Regulation  
I
I
I
I
I
I
I
= 0 mA T = 25°C  
4.95  
4.9  
O
O
O
O
O
O
O
O
J
= 0 to 5AV = 6.6 to 30V (note 1)  
5
V
I
V  
V  
= 0 mA V = 6.6 to 20V T = 25°C  
0.5  
1
mV  
mV  
mV  
mV  
V
O
O
I
J
= 0 mA V = 6.6 to 20V  
10  
I
= 0 to 5AT = 25°C  
5
20  
J
= 0 to 5A  
=5 A  
10  
1.3  
5
35  
V
I
Dropout Voltage  
1.5  
10  
d
Quiescent Current  
Short Circuit Current  
V 30V  
mA  
A
q
I
I
V - V = 5V  
5.5  
0.5  
6.5  
0.7  
sc  
I
O
V - V = 25V  
A
I
O
Thermal Regulation  
T = 25°C, 30ms pulse  
0.003 0.015  
72  
%/W  
dB  
A
SVR Supply Voltage Rejection  
f = 120 Hz, C = 25 µF,  
I
= 5A  
60  
O
O
V = 10 ± ±3V  
I
eN  
RMS Output Noise Voltage T = 25°C f =10Hz to 10KHz  
0.003  
%
A
(% of V )  
O
S
S
Temperature Stability  
Long Term Stability  
0.5  
0.5  
%
%
T = 125°C 1000Hrs  
A
NOTE 1: See short-circuit current curve for available output current at fixed dropout.  
6/20  
LD1084 SERIES  
Table 11: Electrical Characteristics Of LD1084#8 (V =11V, C = C =10µF, T = -40 to 125°C, unless  
I
I
O
A
otherwise specified.)  
Symbol  
Parameter  
Test Conditions  
Min.  
7.92  
7.84  
Typ.  
8
Max.  
8.08  
8.16  
18  
Unit  
V
V
Output Voltage  
Line Regulation  
Load Regulation  
I
I
I
I
I
I
I
= 0 mA T = 25°C  
J
O
O
O
O
O
O
O
O
= 0 to 5AV = 9.6 to 30V (note 1)  
8
V
I
V  
V  
= 0 mA V = 9.6 to 20V T = 25°C  
1
mV  
mV  
mV  
mV  
V
O
O
I
J
= 0 mA V = 9.6 to 20V  
2
18  
I
= 0 to 5AT = 25°C  
8
30  
J
= 0 to 5A  
=5 A  
12  
1.3  
5
60  
V
I
Dropout Voltage  
1.5  
10  
d
Quiescent Current  
Short Circuit Current  
V 30V  
mA  
A
q
I
I
V - V = 5V  
5.5  
0.5  
6.5  
0.7  
sc  
I
O
V - V = 25V  
A
I
O
Thermal Regulation  
T = 25°C, 30ms pulse  
0.003 0.015  
71  
%/W  
dB  
A
SVR Supply Voltage Rejection  
f = 120 Hz, C = 25 µF,  
I
= 5A  
54  
O
O
V = 13 ± ±3V  
I
eN  
RMS Output Noise Voltage T = 25°C f =10Hz to 10KHz  
0.003  
%
A
(% of V )  
O
S
S
Temperature Stability  
Long Term Stability  
0.5  
0.5  
%
%
T = 125°C 1000Hrs  
A
NOTE 1: See short-circuit current curve for available output current at fixed dropout.  
Table 12: Electrical Characteristics Of LD1084#9 (V =12V, C = C =10µF, T = -40 to 125°C, unless  
I
I
O
A
otherwise specified.)  
Symbol  
Parameter  
Test Conditions  
Min.  
8.91  
8.82  
Typ.  
9
Max.  
9.09  
9.18  
20  
Unit  
V
V
Output Voltage  
Line Regulation  
Load Regulation  
I
I
I
I
I
I
I
= 0 mA T = 25°C  
J
O
O
O
O
O
O
O
O
= 0 to 5AV = 10.6 to 30V (note 1)  
9
V
I
V  
V  
= 0 mA V = 10.6 to 20V T = 25°C  
1
mV  
mV  
mV  
mV  
V
O
O
I
J
= 0 mA V = 10.6 to 20V  
2
20  
I
= 0 to 5AT = 25°C  
8
30  
J
= 0 to 5A  
=5 A  
12  
1.3  
5
60  
V
I
Dropout Voltage  
1.5  
10  
d
Quiescent Current  
Short Circuit Current  
V 30V  
mA  
A
q
I
I
V - V = 5V  
5.5  
0.5  
6.5  
0.7  
sc  
I
O
V - V = 25V  
A
I
O
Thermal Regulation  
T = 25°C, 30ms pulse  
0.003 0.015  
70  
%/W  
dB  
A
SVR Supply Voltage Rejection  
f = 120 Hz, C = 25 µF,  
I
= 5A  
O
54  
O
V = 14 ± ±3V  
I
eN  
RMS Output Noise Voltage T = 25°C f =10Hz to 10KHz  
0.003  
%
A
(% of V )  
O
S
S
Temperature Stability  
Long Term Stability  
0.5  
0.5  
%
%
T = 125°C 1000Hrs  
A
NOTE 1: See short-circuit current curve for available output current at fixed dropout.  
7/20  
LD1084 SERIES  
Table 13: Electrical Characteristics Of LD1084#12 (V =15V, C = C =10µF, T = -40 to 125°C, unless  
I
I
O
A
otherwise specified.)  
Symbol  
Parameter  
Test Conditions  
Min.  
11.88  
11.76  
Typ.  
12  
12  
2
Max.  
12.12  
12.24  
25  
Unit  
V
V
Output Voltage  
Line Regulation  
Load Regulation  
I
I
I
I
I
I
I
= 0 mA T = 25°C  
J
O
O
O
O
O
O
O
O
= 0 to 5AV = 13.6 to 30V (note 1)  
V
I
V  
V  
= 0 mA V = 13.6 to 25V T = 25°C  
mV  
mV  
mV  
mV  
V
O
O
I
J
= 0 mA V = 13.6 to 25V  
4
25  
I
= 0 to 5AT = 25°C  
12  
24  
1.3  
5
36  
J
= 0 to 5A  
=5 A  
72  
V
I
Dropout Voltage  
1.5  
d
Quiescent Current  
Short Circuit Current  
V 30V  
10  
mA  
A
q
I
I
V - V = 5V  
5.5  
0.5  
6.5  
0.7  
sc  
I
O
V - V = 25V  
A
I
O
Thermal Regulation  
T = 25°C, 30ms pulse  
0.003 0.015  
66  
%/W  
dB  
A
SVR Supply Voltage Rejection  
f = 120 Hz, C = 25 µF,  
I
= 5A  
O
54  
O
V = 17 ± ±3V  
I
eN  
RMS Output Noise Voltage T = 25°C f =10Hz to 10KHz  
0.003  
%
A
(% of V )  
O
S
S
Temperature Stability  
Long Term Stability  
0.5  
0.5  
%
%
T = 125°C 1000Hrs  
A
NOTE 1: See short-circuit current curve for available output current at fixed dropout.  
8/20  
LD1084 SERIES  
Table 14: Electrical Characteristics Of LD1084 (V =4.25V, C = C =10µF, T = -40 to 125°C, unless  
I
I
O
A
otherwise specified.)  
Symbol  
Parameter  
Test Conditions  
Min.  
Typ.  
1.25  
1.25  
Max.  
1.263  
1.275  
Unit  
V
V
Output Voltage  
I
I
= 10mA T = 25°C  
1.237  
1.225  
O
O
J
= 10mA to 5A  
V = 2.85 to 30V  
V
O
I
(note 1)  
V  
V  
Line Regulation  
Load Regulation  
I
I
I
I
I
= 10mA V = 2.85 to 16.5V T = 25°C  
0.015  
0.035  
0.1  
0.2  
0.2  
0.3  
0.4  
1.5  
10  
%
%
O
O
O
O
O
O
O
I
J
= 10mA V = 2.85 to 16.5V  
I
= 10mA to 5A  
= 10mA to 5A  
= 5A  
T = 25°C  
%
J
0.2  
%
V
Dropout Voltage  
1.3  
V
d
I
Minimum Load Current  
Short Circuit Current  
V = 30V  
3
mA  
A
O(min)  
I
I
V - V = 5V  
5.5  
0.5  
6.5  
sc  
I
O
V - V = 25V  
0.7  
A
I
O
Thermal Regulation  
T = 25°C, 30ms pulse  
0.003 0.015  
72  
%/W  
dB  
A
SVR Supply Voltage Rejection  
f = 120 Hz, C = 25 µF, C  
= 25 µF,  
ADJ  
60  
O
I
= 5A  
V = 6.25 ± ±3V  
O
I
I
Adjust Pin Current  
V = 4.25V I = 10 mA  
55  
120  
5
µA  
µA  
ADJ  
I
O
I  
Adjust Pin Current Change  
I
= 10mA to 5A  
V = 2.85 to 16.5V  
0.2  
ADJ  
O
I
(note 1)  
eN  
RMS Output Noise Voltage T = 25°C f =10Hz to 10KHz  
0.003  
%
A
(% of V )  
O
S
S
Temperature Stability  
Long Term Stability  
0.5  
0.5  
%
%
T = 125°C 1000Hrs  
A
NOTE 1: See short-circuit current curve for available output current at fixed dropout.  
9/20  
LD1084 SERIES  
TYPICAL CHARACTERISTICS (unless otherwise specified T = 25°C, C =10µF (tant.), C =22µF (tant.)  
O
j
I
Figure 4: Short Circuit Current vs Dropout  
Voltage  
Figure 7: Output Voltage vs Temperature  
Figure 8: Load Regulation vs Temperature  
Figure 9: Quiescent Current vs Output Voltage  
Figure 5: Line Regulation vs Temperature  
Figure 6: Quiescent Current vs Temperature  
10/20  
LD1084 SERIES  
Figure 10: Quiescent Current vs Input Voltage  
Figure 13: Dropout Voltage vs Temperature  
Figure 11: Dropout Voltage vs Output Current  
Figure 14: Supply Voltage Rejection vs  
Temperature  
Figure 12: Supply Voltage Rejection vs Output  
Figure 15: Supply Voltage Rejection vs  
Current  
Frequency  
11/20  
LD1084 SERIES  
Figure 16: Adjust Pin Current vs Output Current  
Figure 19: Adjust Pin Current vs Temperature  
Figure 17: Reference Voltage vs Temperature  
Figure 18: Load Regulation vs Temperature  
12/20  
Figure 20: Line Regulation vs Temperature  
Figure 21: Minimum Load Current vs  
Temperature  
LD1084 SERIES  
Figure 22: Supply Voltage Rejection vs  
Figure 25: Supply Voltage Rejection vs Output  
Temperature  
Current  
Figure 23: Supply Voltage Rejection vs  
Figure 26: Stability  
Frequency  
Figure 24: Stability  
Figure 27: Line Transient  
V =14 to 15V, I =200mA,C = 1µF(tant), C =10µF(tant), t =t =5µs  
I
O
I
O
s
f
13/20  
LD1084 SERIES  
Figure 28: Line Transient  
Figure 31: Line Transient  
V =12 to 13V, I =200mA, C = 1µF(tant), C =10µF(tant), No C  
V =12 to 13V, I =200mA, C = 1µF(tant), C =10µF(tant),  
I
O
I
O
ADJ  
I
O
I
O
t =t =5µs  
C
= 1µF t =t =5µs  
s
f
ADJ  
s
f
Figure 32: Load Transient  
Figure 29: Load Transient  
V =13 V, I =0.1 to 5 A, C = 1µF(tant), C =10µF(tant)  
V =15 V, I =0.1 to 5 A, C = 1µF(tant), C =10µF(tant)  
I
O
I
O
I
O
I
O
Figure 30: Load Transient  
V =15 V, I =0.1 to 5 A, C = 1µF(tant), C =10µF(tant), No C  
I
O
I
O
ADJ  
14/20  
LD1084 SERIES  
TO-220 MECHANICAL DATA  
mm.  
inch  
TYP.  
DIM.  
MIN.  
4.40  
1.23  
2.40  
TYP  
MAX.  
4.60  
1.32  
2.72  
MIN.  
0.173  
0.048  
0.094  
MAX.  
0.181  
0.051  
0.107  
A
C
D
D1  
E
1.27  
0.050  
0.49  
0.61  
1.14  
1.14  
4.95  
2.4  
0.70  
0.88  
1.70  
1.70  
5.15  
2.7  
0.019  
0.024  
0.044  
0.044  
0.194  
0.094  
0.393  
0.027  
0.034  
0.067  
0.067  
0.203  
0.106  
0.409  
F
F1  
F2  
G
G1  
H2  
L2  
L4  
L5  
L6  
L7  
L9  
DIA.  
10.0  
10.40  
16.4  
0.645  
13.0  
2.65  
15.25  
6.2  
14.0  
2.95  
15.75  
6.6  
0.511  
0.104  
0.600  
0.244  
0.137  
0.147  
0.551  
0.116  
0.620  
0.260  
0.154  
0.151  
3.5  
3.93  
3.85  
3.75  
P011C  
15/20  
LD1084 SERIES  
D2PAK MEC  
HANICAL DATA  
mm.  
inch  
TYP.  
DIM.  
MIN.  
TYP  
MAX.  
MIN.  
MAX.  
A
A1  
A2  
B
4.4  
2.49  
0.03  
0.7  
4.6  
2.69  
0.23  
0.93  
1.7  
0.173  
0.098  
0.001  
0.027  
0.044  
0.017  
0.048  
0.352  
0.181  
0.106  
0.009  
0.036  
0.067  
0.023  
0.053  
0.368  
B2  
C
1.14  
0.45  
1.23  
8.95  
0.6  
C2  
D
1.36  
9.35  
D1  
E
8
0.315  
0.335  
10  
10.4  
0.393  
0.409  
E1  
G
8.5  
4.88  
15  
5.28  
15.85  
1.4  
0.192  
0.590  
0.050  
0.055  
0.094  
0.208  
0.624  
0.055  
0.068  
0.126  
L
L2  
L3  
M
1.27  
1.4  
1.75  
3.2  
2.4  
R
0.4  
0.016  
V2  
0˚  
8˚  
0˚  
8˚  
011P6G  
16/20  
LD1084 SERIES  
D2PAK/A MECHANICAL DATA  
mm.  
inch  
TYP.  
DIM.  
MIN.  
TYP  
MAX.  
MIN.  
MAX.  
A
A1  
A2  
B
4.40  
2.49  
0.03  
0.7  
4.60  
2.69  
0.23  
0.93  
1.3  
0.173  
0.098  
0.001  
0.028  
0.031  
0.045  
0.018  
0.048  
0.352  
0.181  
0.106  
0.009  
0.037  
0.051  
0.067  
0.024  
0.054  
0.368  
B1  
B2  
C
0.8  
1.14  
0.45  
1.23  
8.95  
1.7  
0.60  
1.36  
9.35  
C2  
D
D1  
E
8
0.315  
0.335  
10  
10.4  
0.394  
0.409  
E1  
G
8.5  
4.88  
15  
5.28  
15.85  
1.4  
0.192  
0.591  
0.050  
0.094  
0.208  
0.624  
0.055  
0.126  
L
L2  
M
1.27  
2.4  
3.2  
R
0.4  
0.016  
V2  
0°  
8°  
0°  
8°  
7106164/D  
17/20  
LD1084 SERIES  
Tape & Reel D2PAK-P2PAK-D2PAK/A-P2PAK/A MECHANICAL DATA  
mm.  
TYP  
inch  
TYP.  
DIM.  
MIN.  
MAX.  
180  
MIN.  
MAX.  
7.086  
0.519  
A
C
12.8  
20.2  
60  
13.0  
13.2  
0.504  
0.795  
2.362  
0.512  
D
N
T
14.4  
10.70  
15.90  
5.00  
4.1  
0.567  
0.421  
0.626  
0.197  
0.161  
0.476  
Ao  
Bo  
Ko  
Po  
P
10.50  
15.70  
4.80  
3.9  
10.6  
15.80  
4.90  
4.0  
0.413  
0.618  
0.189  
0.153  
0.468  
0.417  
0.622  
0.193  
0.157  
0.472  
11.9  
12.0  
12.1  
18/20  
LD1084 SERIES  
Table 15: Revision History  
Date  
Revision  
Description of Changes  
Mistake Order Codes - Table 1.  
Mistake U.M. Load Regulation - V ==> mV.  
07-Oct-2004  
08-Feb-2005  
3
4
19/20  
LD1084 SERIES  
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences  
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted  
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject  
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not  
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.  
The ST logo is a registered trademark of STMicroelectronics  
All other names are the property of their respective owners  
© 2005 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  
20/20  

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