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LT1528CT#TR

Description
IC VREG FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.85 V DROPOUT, PSFM5, PLASTIC, TO-220, 5 PIN, Fixed/Adjustable Positive Single Output LDO Regulator
CategoryPower/power management    The power supply circuit   
File Size162KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric Compare View All

LT1528CT#TR Overview

IC VREG FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.85 V DROPOUT, PSFM5, PLASTIC, TO-220, 5 PIN, Fixed/Adjustable Positive Single Output LDO Regulator

LT1528CT#TR Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeSFM
package instructionZIP, ZIP5,.15,.2,67TB
Contacts3
Reach Compliance Codecompliant
ECCN codeEAR99
AdjustabilityFIXED
Maximum drop-back voltage 10.85 V
Nominal dropback voltage 10.57 V
Maximum absolute input voltage15 V
JESD-30 codeR-PSFM-T5
JESD-609 codee0
Maximum grid adjustment rate0.01%
Maximum load regulation0.03%
Number of functions1
Output times1
Number of terminals5
Working temperatureTJ-Max125 °C
Working temperature TJ-Min
Maximum output current 13 A
Maximum output voltage 114 V
Minimum output voltage 13.3 V
Nominal output voltage 13.3 V
Package body materialPLASTIC/EPOXY
encapsulated codeZIP
Encapsulate equivalent codeZIP5,.15,.2,67TB
Package shapeRECTANGULAR
Package formFLANGE MOUNT
method of packingTAPE AND REEL
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Certification statusNot Qualified
Regulator typeFIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
surface mountNO
technologyBIPOLAR
Terminal surfaceTIN LEAD
Terminal formTHROUGH-HOLE
Terminal pitch1.7 mm
Terminal locationSINGLE
Maximum time at peak reflow temperatureNOT SPECIFIED
Maximum voltage tolerance3%
LT1528
3A Low Dropout Regulator
for Microprocessor Applications
FEATURES
n
n
n
n
n
n
n
n
n
n
n
n
DESCRIPTION
The LT
®
1528 is a 3A low dropout regulator optimized to
handle the large load current transients associated with
the current generation of microprocessors. This device has
the fastest transient response of currently available PNP
regulators and is very tolerant of variations in capacitor
ESR. Dropout voltage is 75mV at 10mA, rising to 300mV
at 1A and 600mV at 3A. The device has a quiescent cur-
rent of 400μA. Quiescent current is well controlled; it does
not increase significantly as the device enters dropout.
The regulator can operate with output capacitors as small
as 3.3μF, although larger capacitors will be needed to
achieve the performance required in most microprocessor
applications. The LT1528 is available with a fixed output
voltage of 3.3V. An external SENSE pin allows adjustment
to output voltages greater than 3.3V, using a simple resis-
tive divider. This allows the device to be adjusted over a
wide range of output voltages, including the 3.3V to 4.2V
range required by a variety of processors from Intel, IBM,
AMD, and Cyrix.
The LT1528 has both reverse input and reverse output
protection and includes a shutdown feature. Quiescent
current drops to 125μA in shutdown. The LT1528 is avail-
able in 5-lead TO-220 and 5-lead DD-PAK packages.
L,
LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
Dropout Voltage: 0.6V at I
OUT
= 3A
Fast Transient Response
Output Current: 3A
Quiescent Current: 400μA
No Protection Diodes Needed
Fixed Output Voltage: 3.3V
Controlled Quiescent Current in Dropout
Shutdown I
Q
= 125μA
Stable with 3.3μF Output Capacitor
Reverse Battery Protection
No Reverse Output Current
Thermal Limiting
APPLICATIONS
n
n
n
Microprocessor Applications
Post Regulator for Switching Supplies
5V to 3.3V Logic Regulator
TYPICAL APPLICATION
Microprocessor Supply with Shutdown
0.6
5
IN
LT1528
4
SHDN
GND
3
330Ω
SENSE
2
J1
J2
J3
OUT
1
15Ω
68Ω
V
OUT
Dropout Voltage
+
DROPOUT VOLTAGE (V)
V
IN
=5V
4
×
47μF*
SOLID TANTALUM
0.5
0.4
0.3
0.2
0.1
0
V
SHDN
(PIN 4)
<0.25
>2.80
NC
OUTPUT
OFF
ON
ON
SHORTING
J1
J2
J3
V
OUT
3.30
3.45
4.00
*CHOOSE CAPACITORS
TO MEET PROCESSOR
REQUIREMENTS
1528 TA01
0
0.5
2.5
1.0
1.5
2.0
OUTPUT CURRENT (mA)
3.0
1528 TA02
1528fb
1

LT1528CT#TR Related Products

LT1528CT#TR LT1528CQ#TR LT1528CQ#PBF LT1528CQ#TRPBF LT1528CT#PBF LT1528CT#TRPBF
Description IC VREG FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.85 V DROPOUT, PSFM5, PLASTIC, TO-220, 5 PIN, Fixed/Adjustable Positive Single Output LDO Regulator IC reg ldo 3.3V/adj 3A 5ddpak IC REG LINEAR POS ADJ 3A 5DDPAK IC REG LINEAR POS ADJ 3A 5DDPAK IC REG LINEAR POS ADJ 3A TO220-5 IC VREG FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.85 V DROPOUT, PSFM5, LEAD FREE, PLASTIC, TO-220, 5 PIN, Fixed/Adjustable Positive Single Output LDO Regulator
Is it Rohs certified? incompatible incompatible conform to conform to conform to conform to
Parts packaging code SFM D2PAK D2PAK D2PAK TO-220 SFM
package instruction ZIP, ZIP5,.15,.2,67TB TO-263, SMSIP5H,.6,67TB LEAD FREE, PLASTIC, D2PAK-5 LEAD FREE, PLASTIC, D2PAK-5 TO-220, ZIP5,.15,.2,67TB ZIP, ZIP5,.15,.2,67TB
Contacts 3 5 5 5 5 3
Reach Compliance Code compliant not_compliant not_compliant not_compliant compliant compliant
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Adjustability FIXED FIXED FIXED FIXED FIXED FIXED
Maximum drop-back voltage 1 0.85 V 0.85 V 0.85 V 0.85 V 0.85 V 0.85 V
Nominal dropback voltage 1 0.57 V 0.57 V 0.57 V 0.57 V 0.57 V 0.57 V
Maximum absolute input voltage 15 V 15 V 15 V 15 V 15 V 15 V
JESD-30 code R-PSFM-T5 R-PSSO-G5 R-PSSO-G5 R-PSSO-G5 R-PSFM-T5 R-PSFM-T5
JESD-609 code e0 e0 e3 e3 e3 e3
Maximum grid adjustment rate 0.01% 0.01% 0.01% 0.01% 0.01% 0.01%
Maximum load regulation 0.03% 0.03% 0.03% 0.03% 0.03% 0.03%
Number of functions 1 1 1 1 1 1
Output times 1 1 1 1 1 1
Number of terminals 5 5 5 5 5 5
Working temperatureTJ-Max 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C
Maximum output current 1 3 A 3 A 3 A 3 A 3 A 3 A
Maximum output voltage 1 14 V 14 V 14 V 14 V 14 V 14 V
Minimum output voltage 1 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V
Nominal output voltage 1 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code ZIP TO-263 TO-263 TO-263 TO-220 ZIP
Encapsulate equivalent code ZIP5,.15,.2,67TB SMSIP5H,.6,67TB SMSIP5H,.6,67TB SMSIP5H,.6,67TB ZIP5,.15,.2,67TB ZIP5,.15,.2,67TB
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form FLANGE MOUNT SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE FLANGE MOUNT FLANGE MOUNT
Peak Reflow Temperature (Celsius) NOT SPECIFIED 235 260 260 NOT SPECIFIED 250
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Regulator type FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
surface mount NO YES YES YES NO NO
technology BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR
Terminal surface TIN LEAD Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier Matte Tin (Sn) - with Nickel (Ni) barrier Matte Tin (Sn) - with Nickel (Ni) barrier Matte Tin (Sn) - with Nickel (Ni) barrier Matte Tin (Sn)
Terminal form THROUGH-HOLE GULL WING GULL WING GULL WING THROUGH-HOLE THROUGH-HOLE
Terminal pitch 1.7 mm 1.702 mm 1.702 mm 1.702 mm 1.7 mm 1.7 mm
Terminal location SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE
Maximum time at peak reflow temperature NOT SPECIFIED 20 30 30 NOT SPECIFIED NOT SPECIFIED
Maximum voltage tolerance 3% 3% 3% 3% 3% 3%
method of packing TAPE AND REEL TAPE AND REEL - TAPE AND REEL - TAPE AND REEL
Brand Name - Linear Technology Linear Technology Linear Technology Linear Technology -
Manufacturer packaging code - Q Q Q T -
Humidity sensitivity level - 1 1 1 1 -
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