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LT1764AET-1.8

Description
LDO Regulator Pos 1.8V 3A Automotive 5-Pin(5+Tab) TO-220
File Size607KB,20 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Download user manual Parametric View All

LT1764AET-1.8 Overview

LDO Regulator Pos 1.8V 3A Automotive 5-Pin(5+Tab) TO-220

LT1764AET-1.8 Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesNot Compliant
ECCN (US)EAR99
Part StatusUnconfirmed
HTS8542.39.00.01
SVHCYes
SVHC Exceeds ThresholdYes
TypeLDO
Number of Outputs1
PolarityPositive
Output TypeFixed
Output Voltage (V)1.8
Maximum Output Current (A)3
Minimum Input Voltage (V)2.7
Maximum Input Voltage (V)20
Maximum Dropout Voltage @ Current (V)0.05@1mA|0.13@100mA|0.45@3A|0.33@1.5A|0.2@500mA
Line Regulation10mV
Load Regulation8mV
Junction to Ambient50°C/W
Special FeaturesCurrent Limit|Reverse Battery Protection|Reverse Current Protection|Shutdown|Thermal Protection
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)125
Supplier Temperature GradeExtended
Supplier PackageTO-220
Pin Count5
Standard Package NameTO-220
MountingThrough Hole
Package Height9.4(Max)
Package Length10.54(Max)
Package Width4.57(Max)
PCB changed5
TabTab
Lead ShapeThrough Hole
LT1764A Series
3A, Fast Transient
Response, Low Noise,
LDO Regulators
FEATURES
DESCRIPTIO
Optimized for Fast Transient Response
Output Current: 3A
Dropout Voltage: 340mV at 3A
Low Noise: 40
µ
V
RMS
(10Hz to 100kHz)
1mA Quiescent Current
Wide Input Voltage Range: 2.7V to 20V
No Protection Diodes Needed
Controlled Quiescent Current in Dropout
Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V
Adjustable Output from 1.21V to 20V
< 1µA Quiescent Current in Shutdown
Stable with 10µF Output Capacitor*
Stable with Ceramic Capacitors*
Reverse Battery Protection
No Reverse Current
Thermal Limiting
APPLICATIO S
The LT
®
1764A is a low dropout regulator optimized for
fast transient response. The device is capable of supplying
3A of output current with a dropout voltage of 340mV.
Operating quiescent current is 1mA, dropping to < 1µA in
shutdown. Quiescent current is well controlled; it does not
rise in dropout as it does with many other regulators. In
addition to fast transient response, the LT1764A has very
low output voltage noise which makes the device ideal for
sensitive RF supply applications.
Output voltage range is from 1.21V to 20V. The LT1764A
regulators are stable with output capacitors as low as 10µF.
Internal protection circuitry includes reverse battery pro-
tection, current limiting, thermal limiting and reverse cur-
rent protection. The device is available in fixed output
voltages of 1.5V, 1.8V, 2.5V, 3.3V and as an adjustable
device with a 1.21V reference voltage. The LT1764A regu-
lators are available in 5-lead TO-220 and DD packages, and
16-lead FE packages.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
*See Applications Information Section.
3.3V to 2.5V Logic Power Supply
Post Regulator for Switching Supplies
TYPICAL APPLICATIO
400
3.3V
IN
to 2.5V
OUT
Regulator
DROPOUT VOLTAGE (mV)
2.5V
3A
10µF*
LT1764A-2.5
SHDN SENSE
GND
1764 TA01
350
300
250
200
150
100
50
0
0
0.5
1.0
1.5
2.0
LOAD CURRENT (A)
2.5
3.0
1764 TA02
+
V
IN
> 3V
10µF*
IN
OUT
+
*TANTALUM,
CERAMIC OR
ALUMINUM ELECTROLYTIC
U
Dropout Voltage
1764afb
U
U
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