Freelance Electronics Components Distributor
Closed Dec 25th-26th
800-300-1968

We Stock Hard to Find Parts
My Account | My Orders | My Cart
Questions? (800) 300-1968

LT1764AEQ

Part # LT1764AEQ
Description LDO Regulator Pos 1.21V to 20V 3A 6-Pin(5+Tab) DDPAK
Category RECTIFIER
Availability Out of Stock
Qty 0
Qty Price
1 + $8.29823

Related Items

LT1764AEQ-2.5
Linear Technology
RECTIFIER
LT1764AEQ-2.5
$9.95647
LT1764AET-2.5
Linear Technology
RECTIFIER
LT1764AET-2.5
$3.07807
LT1764EQ
Linear Technology
RECTIFIER
LT1764EQ
$11.59629
LT1764ET-2.5
Linear Technology
RECTIFIER
LT1764ET-2.5
$9.74823
LT1761ES5-1.5#TRMPBF
Linear Technology
IC
LT1761ES5-1.5#TRMPBF
$1.24339
LT1761ES5-1.8#TRPBF
Linear Technology
IC
LT1761ES5-1.8#TRPBF
$2.06125


Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

1
LT1764A Series
1764afb
3A, Fast Transient
Response, Low Noise,
LDO Regulators
■
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
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.
Dropout Voltage
3.3V
IN
to 2.5V
OUT
Regulator
■
3.3V to 2.5V Logic Power Supply
■
Post Regulator for Switching Supplies
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
IN
SHDN
10µF*
*TANTALUM,
CERAMIC OR
ALUMINUM ELECTROLYTIC
1764 TA01
OUT
V
IN
> 3V
SENSE
GND
LT1764A-2.5
2.5V
3A
10µF*
+
+
LOAD CURRENT (A)
0 0.5
DROPOUT VOLTAGE (mV)
1.0 2.01.5
2.5
3.0
1764 TA02
400
350
300
250
200
150
100
50
0
, 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.
2
LT1764A Series
1764afb
PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage I
LOAD
= 0.5A 1.7 V
(Notes 3, 11) I
LOAD
= 1.5A 1.9 V
E Grade: I
LOAD
= 3A ● 2.3 2.7 V
MP Grade: I
LOAD
= 3A ● 2.3 2.8 V
Regulated Output Voltage LT1764A-1.5 V
IN
= 2.21V, I
LOAD
= 1mA 1.477 1.500 1.523 V
(Note 4) 2.7V < V
IN
< 20V, 1mA < I
LOAD
< 3A ● 1.447 1.500 1.545 V
LT1764A-1.8 V
IN
= 2.3V, I
LOAD
= 1mA 1.773 1.800 1.827 V
2.8V < V
IN
< 20V, 1mA < I
LOAD
< 3A ● 1.737 1.800 1.854 V
ABSOLUTE MAXIMUM RATINGS
W
WW
U
PACKAGE/ORDER INFORMATION
W
U
U
(Note 1)
IN Pin Voltage ........................................................ ±20V
OUT Pin Voltage .................................................... ±20V
Input to Output Differential Voltage (Note 12) ....... ±20V
SENSE Pin Voltage ............................................... ±20V
ADJ Pin Voltage ...................................................... ±7V
SHDN Pin Voltage ................................................. ±20V
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C. (Note 2)
ELECTRICAL CHARACTERISTICS
Output Short-Circuit Duration ......................... Indefinite
Operating Junction Temperature Range
E Grade............................................. –40°C to 125°C
MP Grade ......................................... – 55°C to 125°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Order Options
Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
LT1764AET
LT1764AET-1.5
LT1764AET-1.8
LT1764AET-2.5
LT1764AET-3.3
ORDER PART NUMBER
LT1764AEQ
LT1764AEQ-1.5
LT1764AEQ-1.8
LT1764AEQ-2.5
LT1764AEQ-3.3
LT1764AMPQ
ORDER PART NUMBER
T
JMAX
= 150°C, θ
JA
= 30°C/ W
*PIN 5 = SENSE FOR LT1764A-1.5/LT1764A-1.8/
LT1764A-2.5/LT1764A-3.3
= ADJ FOR LT1764A
*PIN 5 = SENSE FOR LT1764A-1.5/LT1764A-1.8/
LT1764A-2.5/LT1764A-3.3
= ADJ FOR LT1764A
T
JMAX
= 150°C, θ
JA
= 50°C/ W
Q PACKAGE
5-LEAD PLASTIC DD
TAB IS
GND
FRONT VIEW
SENSE/ADJ*
OUT
GND
IN
SHDN
5
4
3
2
1
T PACKAGE
5-LEAD PLASTIC TO-220
SENSE/
ADJ*
OUT
GND
IN
SHDN
FRONT VIEW
TAB IS
GND
5
4
3
2
1
LT1764AEFE
LT1764AEFE-1.5
LT1764AEFE-1.8
LT1764AEFE-2.5
LT1764AEFE-3.3
ORDER PART NUMBER FE PART MARKING
LT1764AEFE
LT1764AEFE-1.5
LT1764AEFE-1.8
LT1764AEFE-2.5
LT1764AEFE-3.3
FE PACKAGE
16-LEAD PLASTIC TSSOP
PIN 17 IS GND
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
GND
NC
OUT
OUT
OUT
SENSE/ADJ*
GND
GND
GND
NC
IN
IN
IN
NC
SHDN
GND
17
T
JMAX
= 150°C, θ
JA
= 38°C/ W
*PIN 6 = SENSE FOR LT1764A-1.5/
LT1764A-1.8/LT1764A-2.5/
LT1764A-3.3
= ADJ FOR LT1764A
3
LT1764A Series
1764afb
LT1764A-2.5 V
IN
= 3V, I
LOAD
= 1mA 2.462 2.500 2.538 V
3.5V < V
IN
< 20V, 1mA < I
LOAD
< 3A ● 2.412 2.500 2.575 V
LT1764A-3.3 V
IN
= 3.8V, I
LOAD
= 1mA 3.250 3.300 3.350 V
4.3V < V
IN
< 20V, 1mA < I
LOAD
< 3A ● 3.183 3.300 3.400 V
ADJ Pin Voltage LT1764A V
IN
= 2.21V, I
LOAD
= 1mA 1.192 1.210 1.228 V
(Notes 3, 4) E Grade: 2.7V < V
IN
< 20V, 1mA < I
LOAD
< 3A ● 1.168 1.210 1.246 V
MP Grade: 2.8V < V
IN
< 20V, 1mA < I
LOAD
< 3A ● 1.168 1.210 1.246 V
Line Regulation LT1764A-1.5 ∆V
IN
= 2.21V to 20V, I
LOAD
= 1mA ● 2.5 10 mV
LT1764A-1.8 ∆V
IN
= 2.3V to 20V, I
LOAD
= 1mA ● 310mV
LT1764A-2.5 ∆V
IN
= 3V to 20V, I
LOAD
= 1mA ● 410mV
LT1764A-3.3 ∆V
IN
= 3.8V to 20V, I
LOAD
= 1mA ● 4.5 10 mV
LT1764A (Note 3) ∆V
IN
= 2.21V to 20V, I
LOAD
= 1mA ● 210mV
Load Regulation LT1764A-1.5 V
IN
= 2.7V, ∆I
LOAD
= 1mA to 3A 3 7 mV
V
IN
= 2.7V, ∆I
LOAD
= 1mA to 3A ● 23 mV
LT1764A-1.8 V
IN
= 2.8V, ∆I
LOAD
= 1mA to 3A 4 8 mV
V
IN
= 2.8V, ∆I
LOAD
= 1mA to 3A ● 25 mV
LT1764A-2.5 V
IN
= 3.5V, ∆I
LOAD
= 1mA to 3A 4 10 mV
V
IN
= 3.5V, ∆I
LOAD
= 1mA to 3A ● 30 mV
LT1764A-3.3 V
IN
= 4.3V, ∆I
LOAD
= 1mA to 3A 4 12 mV
V
IN
= 4.3V, ∆I
LOAD
= 1mA to 3A ● 40 mV
LT1764A (Note 3) V
IN
= 2.7V, ∆I
LOAD
= 1mA to 3A 2 5 mV
E Grade: V
IN
= 2.7V, ∆I
LOAD
= 1mA to 3A ● 20 mV
MP Grade: V
IN
= 2.8V, ∆I
LOAD
= 1mA to 3A ● 20 mV
Dropout Voltage I
LOAD
= 1mA 0.02 0.05 V
V
IN
= V
OUT(NOMINAL)
I
LOAD
= 1mA ● 0.10 V
(Notes 5, 6, 11) I
LOAD
= 100mA 0.07 0.13 V
I
LOAD
= 100mA ● 0.18 V
I
LOAD
= 500mA 0.14 0.20 V
I
LOAD
= 500mA ● 0.27 V
I
LOAD
= 1.5A 0.25 0.33 V
I
LOAD
= 1.5A ● 0.40 V
I
LOAD
= 3A 0.34 0.45 V
I
LOAD
= 3A ● 0.66 V
GND Pin Current I
LOAD
= 0mA ● 1 1.5 mA
V
IN
= V
OUT(NOMINAL)
+ 1V I
LOAD
= 1mA ● 1.1 1.6 mA
(Notes 5, 7) I
LOAD
= 100mA ● 3.5 5 mA
I
LOAD
= 500mA ● 11 18 mA
I
LOAD
= 1.5A ● 40 75 mA
I
LOAD
= 3A ● 120 200 mA
Output Voltage Noise C
OUT
= 10µF, I
LOAD
= 3A, BW = 10Hz to 100kHz 40 µV
RMS
ADJ Pin Bias Current (Notes 3, 8) 310µA
Shutdown Threshold V
OUT
= Off to On ● 0.9 2 V
V
OUT
= On to Off ● 0.25 0.75 V
SHDN Pin Current V
SHDN
= 0V 0.01 1 µA
(Note 9) V
SHDN
= 20V 730µA
Quiescent Current in Shutdown V
IN
= 6V, V
SHDN
= 0V 0.01 1 µA
Ripple Rejection V
IN
– V
OUT
= 1.5V (Avg), V
RIPPLE
= 0.5V
P-P
,5563dB
f
RIPPLE
= 120Hz, I
LOAD
= 1.5A
ELECTRICAL CHARACTERISTICS
PARAMETER CONDITIONS MIN TYP MAX UNITS
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C. (Note 2)
1234567NEXT
Address
Freelance Electronics
13197 Sandoval Street
Santa Fe Springs, CA 90670
 
Hours of Operation  (Holiday Hours)
Monday-Friday 7:30am-4:30pm PST
(Deadline for next day shipment 2:00pm PST)
Seal
Government Cage code#-1V4R6
Duns Number# 788130532
Certified Small Disadvantaged Business
Customer Service
Company
Information
Connect with Us
Twitter Facebook Instagra,
This site is protected by Trustwave's Trusted Commerce program