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Part: LT1587CT-3.6
Category:
Power Management
-> Regulators
-> Linear Regulators
-> Positive
-> Adjustable
Description: LT1587, 3A Low Dropout Fast Response Positive 1.5 GTL+ Regulator Adjustable And Fixed
Company: Linear Technology Corporation
Datasheet: Download LT1587CT-3.6 datasheet File size : 550 kB
Request For quote: Find where to buy LT1587CT-3.6
Datasheet text preview:
LT1584/LT1585/LT1587
N
7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed
DESCRIPTION
The LT ®1584/LT1585/LT1587 are low dropout threeterminal regulators with 7A, 4.6A and 3A output current capability, respectively. Design has been optimized for low voltage applications where transient response and minimum input voltage are critical. Similar to the LT1083/4/5 family, it has lower dropout voltage and faster transient response. These improvements make it ideal for low voltage microprocessor applications requiring a regulated 2.5V to 3.6V output with an input supply below 7V. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload that would create excessive junction temperatures. The LT1585/LT1587 are available in both the through-hole and surface mount versions of the industry standard 3-pin TO-220 power package. The LT1584 is available in the through-hole 3-pin TO-220 power package.
, LTC and LT are registered trademarks of Linear Technology Corporation. Pentium is a trademark of Intel Corporation. PowerPC is a trademark of IBM Corporation.
FEATURES
s s s s s s
Fast Transient Response Guaranteed Dropout Voltage at Multiple Currents Load Regulation: 0.05% Typ Trimmed Current Limit On-Chip Thermal Limiting Standard 3-Pin Power Package
APPLICATIONS
s s s s s s
PentiumTM Processor Supplies PowerPCTM Supplies Other 2.5V to 3.6V Microprocessor Supplies Low Voltage Logic Supplies Battery-Powered Circuitry Post Regulator for Switching Supply
Adjustable 3.3V Fixed 3.38V Fixed 3.45V Fixed 3.6V Fixed
LT1585/7CM, LT1584/5/7CT LT1585/7CM-3.3, LT1584/5/7CT-3.3 LT1585CM-3.38, LT1584/5CT-3.38 LT1585/7CM-3.45, LT1584/5/7CT-3.45 LT1585/7CM-3.6, LT1584/5/7CT-3.6
TYPICAL APPLICATION
1.5
Dropout Voltage vs Output Current
1.4
3.3V, 7A, 4.6A, 3A Regulator
INPUT/OUTPUT DIFFERENTIAL (V)
VIN 4.75V LT1584-3.3 LT1585-3.3 T1587-3.3 1 C1 0µF 7 3.3V A, 4.6A, 3A S C2* T OLID ANTALUM
1.3 1.2 1.1 0.0 0.9 0.8 0.7 0.6 .5 0 OUTPUT CURRENT (A)
1585 TA02
+
+
* REQUIRED FOR STABILITY LT1584: C2 = 22µF, LT1585/LT1587: C2 = 10µF
1585 TA01
OTE: MICROPROCESSOR APPLICATIONS WITH LOAD TRANSIENTS OF 3.8A REQUIRE OUTPUT DECOUPLING CAPACITANCE > 1300µF ON FIXED VOLTAGE PARTS TO ACHIEVE < 50mV OF DEVIATION FROM NOMINAL OUTPUT. CONSULT FACTORY FOR DETAILS
U
U
U
IFULL LOAD
1
LT1584/LT1585/LT1587
ABSOLUTE MAXIMUM RATINGS
VIN ........... 7V Operating Junction Temperature Range Control Section... 0°C to 125°C Power Transistor ......... 0°C to 150°C
PRECONDITIONI
100% Thermal Limit Functional Test
PACKAGE/ORDER INFORMATION
FRONT VIEW 2 3 1 VIN AOUT DJ M PACKAGE 3-LEAD PLASTIC DD PAK
ORDER PART NUMBER LT1585CM LT1587CM
FRONT VIEW 2 3 1 VIN AOUT DJ T PACKAGE 3-LEAD PLASTIC TO-220
JA = 30°C/W*
FRONT VIEW 2 3 1 VIN GOUT ND M PACKAGE 3-LEAD PLASTIC DD PAK
JA = 50°C/W
JA = 30°C/W*
LT1585CM-3.3 LT1585CM-3.38 LT1585CM-3.45 LT1585CM-3.6 LT1587CM-3.3 LT1587CM-3.45 LT1587CM-3.6
FRONT VIEW 2 3 1 VIN GOUT ND T PACKAGE 3-LEAD PLASTIC TO-220
JA = 50°C/W
* With package soldered to 0.5 square inch copper area over backside ground plane or internal power plane. JA can vary from 20°C/W to > 40°C/ W with other mounting techniques.
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS
PARAMETER Reference Voltage LT1584 LT1585 LT1587 Output Voltage LT1584-3.3 LT1585-3.3 LT1587-3.3 LT1584-3.38 LT1585-3.38 LT1584-3.45 LT1585-3.45 LT1587-3.45 LT1584-3.6 LT1584-3.6 LT1584-3.6 LT1584-3.6 CONDITIONS 1.5V (VIN VOUT) 3V, 10mA IOUT 7A 1.5V (VIN VOUT) 5.75V, 10mA IOUT 4.6A, TJ 25°C 1.5V (VIN VOUT) 5.75V, 10mA IOUT 4A, TJ < 25°C 1.5V (VIN VOUT) 5.75V, 10mA IOUT 3A 4.75V VIN 6.3V, 0mA IOUT 7A 4.75V VIN 7V, 0mA IOUT 4.6A, TJ 25°C 4.75V VIN 7V, 0mA IOUT 4A, TJ < 25°C 4.75V VIN 7V, 0mA IOUT 3A 4.75V VIN 6.38V, 0mA IOUT 7A 4.75V VIN 7V, 0mA IOUT 4A 4.75V VIN 6.45V, 0mA IOUT 7A 4.75V VIN 7V, 0mA IOUT 4A 4.75V VIN 7V, 0mA IOUT 3A 4.75V VIN 7V, 0mA IOUT 6A 4.80V VIN 7V, 0mA IOUT 6A 4.80V VIN 6.6V, 0mA IOUT 7A 4.85V VIN 6.6V, 0mA IOUT 7A MIN TYP MAX UNITS
q
1.225 ( 2%)
q q
3.235 ( 2%) 3.313 ( 2%)
q q q q q
3.381 ( 2%) 3.400 ( 5.5%) 3.450 ( 4%) 3.431 ( 4.7%) 3.481 ( 3.3%)
2
UU
U
U
U
W
WW
U
W
Storage Temperature Range ........ 65°C to 150°C Lead Temperature (Soldering, 10 sec)......... 300°C
G
ORDER PART NUMBER LT1584CT LT1585CT LT1587CT
LT1584CT-3.3 LT1585CT-3.3 LT1587CT-3.3 LT1584CT-3.38 LT1585CT-3.38
LT1584CT-3.45 LT1585CT-3.45 LT1587CT-3.45 LT1584CT-3.6 LT1585CT-3.6 LT1587CT-3.6
1.250
1.275 (+ 2%)
V
3.300
3.365 (+ 2%)
V V
3.380 3.465 (+ 2.5%)
3.450 3.600 3.600 3.600 3.600
3.519 (+ 2%) 3.672 (+ 2%) 3.672 (+ 2%) 3.672 (+ 2%) 3.672 (+ 2%)
V V V V V
LT1584/LT1585/LT1587
ELECTRICAL CHARACTERISTICS
PARAMETER Output Voltage LT1585/7-3.6 LT1585/7-3.6 LT1585-3.6 LT1585-3.6 LT1584/5/7 LT1584/5/7-3.3 LT1584/5-3.38 LT1584/5/7-3.45 LT1584/5/7-3.6 LT1584/5/7 LT1584/5/7-3.3 LT1584/5-3.38 LT1584/5/7-3.45 LT1584/5/7-3.6 LT1585/7 LT1585/7-3.3 LT1585-3.38 LT1585/7-3.45 LT1585/7-3.6 LT1585 LT1585-3.3 LT1585-3.38 LT1585-3.45 LT1585-3.6 LT1584 LT1584-3.3 LT1584-3.38 LT1584-3.45 LT1584-3.6 CONDITIONS 4.75V VIN 7V, 0mA IOUT 3A 4.80V VIN 7V, 0mA IOUT 3A 4.80V VIN 7V, 0mA IOUT 4A 4.85V VIN 7V, 0mA IOUT 4A 2.75V VIN 7V, IOUT = 10mA 4.75V VIN 7V, IOUT = 0mA 4.75V VIN 7V, IOUT = 0mA 4.75V VIN 7V, IOUT = 0mA 4.75V VIN 7V, IOUT = 0mA (VN VOUT) = 3V, TJ = 25°C, 10mA IOUT IFULL LOAD VIN = 5V, TJ = 25°C, 0mA IOUT IFULL LOAD VIN = 5V, TJ = 25°C, 0mA IOUT IFULL LOAD VIN = 5V, TJ = 25°C, 0mA IOUT IFULL LOAD VIN = 5.25V, TJ = 25°C, 0mA IOUT IFULL LOAD
q q q q q
MIN 3.474 ( 3.5%) 3.528 ( 2%) 3.450 ( 4%) 3.492 ( 3%)
TYP 3.600 3.600 3.600 3.600
MAX 3.672 (+ 2%) 3.672 (+ 2%) 3.672 (+ 2%) 3.672 (+ 2%)
UNITS V V V V
Line Regulation (Notes 1, 2)
q
0.005
0.2
%
Load Regulation (Notes 1, 2, 3)
0.05 0.05
0.3 0.5
% %
Dropout Voltage
VREF = 1%, IOUT = 3A VOUT = 1%, IOUT = 3A VOUT = 1%, IOUT = 3A VOUT = 1%, IOUT = 3A VOUT = 1%, IOUT = 3A VREF = 1%, IOUT = 4.6A, TJ 25°C VREF = 1%, IOUT = 4A, TJ < 25°C VOUT = 1%, IOUT = 4.6A, TJ 25°C VOUT = 1%, IOUT = 4A, TJ < 25°C VOUT = 1%, IOUT = 4A VOUT = 1%, IOUT = 4A VOUT = 1%, IOUT = 4A VREF = 1%, IOUT = 6A VOUT = 1%, IOUT = 6A VOUT = 1%, IOUT = 6A VOUT = 1%, IOUT = 6A VOUT = 1%, IOUT = 6A TJ 25°C TJ < 25°C VREF = 1%, IOUT = 7A VOUT = 1%, IOUT = 7A VOUT = 1%, IOUT = 7A VOUT = 1%, IOUT = 7A VOUT = 1%, IOUT = 7A (VIN VOUT) = 3V (VIN VOUT) = 3V (VIN VOUT) = 3V (VIN VOUT) = 3V (VIN VOUT) = 3V (VIN VOUT) = 5.5V (VIN VOUT) = 5.5V TJ 25°C TJ < 25°C (VIN VOUT) = 5.5V (VIN VOUT) = 5.5V (VIN VOUT) = 5.5V (VIN VOUT) = 5.5V (VIN VOUT) = 5.5V (VIN VOUT) = 5.5V (VIN VOUT) = 5.5V
q
1.150
1.300
V
q
1.200
1.400
V
q q
1.200 1.200
1.300 1.350
V V
LT1584 LT1584-3.3 LT1584-3.38 LT1584-3.45 LT1584-3.6 Current Limit (Note 3) LT1584 LT1584-3.3 LT1584-3.38 LT1584-3.45 LT1584-3.6 LT1585 LT1585-3.3
q
1.250
1.400
V
q
7.100
8.250
A
q q
4.600 4.100
5.25 5.25
A A
LT1585-3.38 LT1585-3.45 LT1585-3.6 LT1587 LT1587-3.3 LT1587-3.45 LT1587-3.6
q
4.100
4.750
A
q
3.100
3.750
A
3
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