LT1587CM-1.5 Linear Technology, LT1587CM-1.5 Datasheet - Page 2

• Manufacturer Part Number: LT1587CM-1.5
• Description: IC LDO REGULATOR 3A 1.5V DDPAK-3
• Manufacturer: Linear Technology

Specifications of LT1587CM-1.5

• Regulator Topology: Positive Fixed
• Voltage - Output: 1.5V
• Voltage - Input: 2.7 ~ 7 V
• Voltage - Dropout (typical): 1.15V @ 3A
• Number Of Regulators: 1
• Current - Output: 3A
• Current - Limit (min): 3.1A
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TO-263-2, D⊃2Pak (2 leads + Tab), TO-263AB
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ABSOLUTE
PACKAGE/ORDER
* With package soldered to 0.5 square inch copper area over backside
PARAMETER
Output Voltage
Line Regulation (Notes 1, 2)
Load Regulation
(Notes 1, 2, 3)
Dropout Voltage
Current Limit (Note 3)
Quiescent Current
Ripple Rejection
Thermal Regulation
Temperature Stability
Long-Term Stability
RMS Output Noise
(% of V
Thermal Resistance
Junction to Case
LT1587-1.5
V
Operating Junction Temperature Range
ELECTRICAL CHARACTERISTICS
2
The
temperature range.
Note 1: See thermal regulation specifications for changes in output voltage
due to heating effects. Load and line regulation are measured at a constant
junction temperature by low duty cycle pulse testing.
Note 2: Line and load regulation are guaranteed up to the maximum
power dissipation (17W for the LT1587-1.5 in T package). Power
ground plane or internal power plane.
> 40 C/W with other mounting techniques.
IN
............................................................................. 7V
Control Section.................................... 0 C to 125 C
Power Transistor ................................. 0 C to 150 C
denotes specifications which apply over the specified operating
OUT
)
3-LEAD PLASTIC DD
FRONT VIEW
M PACKAGE
JA
= 30 C/W*
W
MAXIMUM
3
2
1
W W
V
V
GND
CONDITIONS
V
3V V
3V V
V
(V
V
f = 120Hz, C
T
T
T
T Package: Control Circuitry/Power Transistor
M Package: Control Circuitry/Power Transistor
IN
OUT
A
A
A
IN
IN
IN
V
IN
OUT
= 25 C, 30ms pulse
= 125 C, 1000 Hrs.
= 25 C, 10Hz f 10kHz
= 5V, T
= 5V, T
= 5V
INFORMATION
– V
U
JA
IN
IN
= 1%, I
OUT
can vary from 20 C/W to
J
J
7V, 0mA I
7V, I
) = 5.5V
RATINGS
OUT
= 25 C, I
= 25 C, 0mA I
OUT
OUT
= 25 F Tant., V
W
= 3A
LT1587CM-1.5
= 0mA
ORDER PART
OUT
U
NUMBER
OUT
= 0mA
OUT
3A
IN
U
= 4.5V, I
I
FULL LOAD
OUT
100% Thermal Limit Functional Test
PRECONDITIONI G
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
Consult factory for Industrial and Military grade parts.
dissipation is determined by input/output differential and the output
current. Guaranteed maximum output power will not be available over
the full input/output voltage range.
Note 3: I
as a function of input-to-output voltage. I
LT1587-1.5 has constant current limit with changes in input-to-output
voltage.
= 3A
3-LEAD PLASTIC TO-220
FULL LOAD
FRONT VIEW
T PACKAGE
JA
= 50 C/W
U
is defined as the maximum value of output load current
3
2
1
1.485 (– 1%)
1.470 (– 2%)
3.100
MIN
U U
60
V
V
GND
IN
OUT
FULL LOAD
0.005
1.150
3.750
0.004
0.003
0.05
0.05
0.03
TYP
1.5
1.5
0.5
72
7
is equal to 3A. The
1.515 (+ 1%)
1.530 (+ 2%)
ORDER PART
LT1587CT-1.5
0.7/3.0
0.7/3.0
1.300
NUMBER
MAX
0.02
0.2
1.0
0.3
0.5
13
UNITS
%/W
C/W
C/W
mA
dB
%
%
%
%
%
%
V
V
V
A