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LT1764AMPQ#TR

Description
LT1764A - 3A, Fast Transient Response, Low Noise, LDO Regulators; Package: DD PAK; Pins: 5; Temperature Range: -55°C to 125°C
CategoryPower/power management    The power supply circuit   
File Size607KB,20 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric View All

LT1764AMPQ#TR Overview

LT1764A - 3A, Fast Transient Response, Low Noise, LDO Regulators; Package: DD PAK; Pins: 5; Temperature Range: -55°C to 125°C

LT1764AMPQ#TR Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeD2PAK
package instructionTO-263, SMSIP5H,.6,67TB
Contacts5
Manufacturer packaging codeQ
Reach Compliance Code_compli
ECCN codeEAR99
AdjustabilityADJUSTABLE
Maximum drop-back voltage 10.66 V
Nominal dropback voltage 10.34 V
Maximum absolute input voltage20 V
JESD-30 codeR-PSSO-G5
JESD-609 codee0
length10.2235 mm
Humidity sensitivity level3
Number of functions1
Output times1
Number of terminals5
Working temperatureTJ-Max125 °C
Operating temperatureTJ-Mi-55 °C
Maximum output current 13 A
Maximum output voltage 120 V
Minimum output voltage 11.21 V
Package body materialPLASTIC/EPOXY
encapsulated codeTO-263
Encapsulate equivalent codeSMSIP5H,.6,67TB
Package shapeRECTANGULAR
Package formSMALL OUTLINE
method of packingTAPE AND REEL
Peak Reflow Temperature (Celsius)245
Certification statusNot Qualified
Regulator typeADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height4.877 mm
surface mountYES
technologyBIPOLAR
Terminal surfaceTin/Lead (Sn/Pb) - with Nickel (Ni) barrie
Terminal formGULL WING
Terminal pitch1.7 mm
Terminal locationSINGLE
Maximum time at peak reflow temperature40
width8.89 mm
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
1
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