OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

LT1764EQ-1.5#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
1
LT1764 Series
1764fb
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
■
Reverse Battery Protection
■
No Reverse Current
■
Thermal Limiting
■
Available in 5-Lead TO-220, DD and 16-Lead
TSSOP Packages
The LT
®
1764 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. Oper-
ating 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 LT1764 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 LT1764
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 LT1764 regu-
lators are available in 5-lead TO-220, DD and Exposed Pad
16-lead TSSOP 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
1764 TA01
OUT
V
IN
> 3V
SENSE
GND
LT1764-2.5
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
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners. Protected by U.S. Patents,
including 6144250, 6118263.
2
LT1764 Series
1764fb
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
Output Short-Circuit Duration ......................... Indefinite
Operating Junction Temperature Range –40°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/
LT1764ET
LT1764ET-1.5
LT1764ET-1.8
LT1764ET-2.5
LT1764ET-3.3
ORDER PART NUMBER
LT1764EQ
LT1764EQ-1.5
LT1764EQ-1.8
LT1764EQ-2.5
LT1764EQ-3.3
ORDER PART NUMBER
T
JMAX
= 150°C, θ
JA
= 30°C/ W
*PIN 5 = SENSE FOR LT1764-1.5/LT1764-1.8/
LT1764-2.5/LT1764-3.3
= ADJ FOR LT1764
*PIN 5 = SENSE FOR LT1764-1.5/LT1764-1.8/
LT1764-2.5/LT1764-3.3
= ADJ FOR LT1764
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
LT1764EFE
LT1764EFE-1.5
LT1764EFE-1.8
LT1764EFE-2.5
LT1764EFE-3.3
ORDER PART
NUMBER
FE PACKAGE
16-LEAD PLASTIC TSSOP
EXPOSED PAD (PIN 17) IS GND. MUST BE
SOLDERED TO THE PCB.
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 LT1764-1.5/
LT1764-1.8/LT1764-2.5/
LT1764-3.3
= ADJ FOR LT1764
1764EFE
1764EFE15
1764EFE18
1764EFE25
1764EFE33
FE PART
MARKING
3
LT1764 Series
1764fb
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
I
LOAD
= 2.7A, 110°C < T
J
≤ 125°C 2.3 2.7 V
I
LOAD
= 3A, –40°C ≤ T
J
≤ 110°C 2.3 2.7 V
Regulated Output Voltage LT1764-1.5 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, –40°C ≤ T
J
≤ 110°C 1.447 1.500 1.545 V
2.7V < V
IN
< 20V, 1mA < I
LOAD
< 2.7A, 110°C < T
J
≤ 125°C 1.447 1.500 1.545 V
LT1764-1.8 V
IN
= 2.3V, I
LOAD
= 1mA 1.773 1.800 1.827 V
2.8V < V
IN
< 20V, 1mA < I
LOAD
< 3A, –40°C ≤ T
J
≤ 110°C 1.737 1.800 1.854 V
2.8V < V
IN
< 20V, 1mA < I
LOAD
< 2.7A, 110°C < T
J
≤ 125°C 1.737 1.800 1.854 V
LT1764-2.5 V
IN
= 3V, I
LOAD
= 1mA 2.462 2.500 2.538 V
3.5V < V
IN
< 20V, 1mA < I
LOAD
< 3A, –40°C ≤ T
J
≤ 110°C 2.412 2.500 2.575 V
3.5V < V
IN
< 20V, 1mA < I
LOAD
< 2.7A, 110°C < T
J
≤ 125°C 2.412 2.500 2.575 V
LT1764-3.3 V
IN
= 3.8V, I
LOAD
= 1mA 3.250 3.300 3.350 V
4.3V < V
IN
< 20V, 1mA < I
LOAD
< 3A, –40°C ≤ T
J
≤ 110°C 3.183 3.300 3.400 V
4.3V < V
IN
< 20V, 1mA < I
LOAD
< 2.7A, 110°C < T
J
≤ 125°C 3.183 3.300 3.400 V
ADJ Pin Voltage LT1764 V
IN
= 2.21V, I
LOAD
= 1mA 1.192 1.210 1.228 V
(Notes 3, 4) 2.7V < V
IN
< 20V, 1mA < I
LOAD
< 3A, –40°C ≤ T
J
≤ 110°C 1.168 1.210 1.246 V
2.7V < V
IN
< 20V, 1mA < I
LOAD
< 2.7A, 110°C < T
J
≤ 125°C 1.168 1.210 1.246 V
Line Regulation LT1764-1.5 ∆V
IN
= 2.21V to 20V, I
LOAD
= 1mA ● 2.5 10 mV
LT1764-1.8 ∆V
IN
= 2.3V to 20V, I
LOAD
= 1mA ● 310mV
LT1764-2.5 ∆V
IN
= 3V to 20V, I
LOAD
= 1mA ● 410mV
LT1764-3.3 ∆V
IN
= 3.8V to 20V, I
LOAD
= 1mA ● 4.5 10 mV
LT1764 (Note 3) ∆V
IN
= 2.21V to 20V, I
LOAD
= 1mA ● 210mV
Load Regulation LT1764-1.5 V
IN
= 2.7V, ∆I
LOAD
= 1mA to 3A 3 7 mV
V
IN
= 2.7V, ∆I
LOAD
= 1mA to 3A, –40°C ≤ T
J
≤ 110°C23mV
V
IN
= 2.7V, ∆I
LOAD
= 1mA to 2.7A, 110°C < T
J
≤ 125°C23mV
LT1764-1.8 V
IN
= 2.8V, ∆I
LOAD
= 1mA to 3A 4 8 mV
V
IN
= 2.8V, ∆I
LOAD
= 1mA to 3A, –40°C ≤ T
J
≤ 110°C25mV
V
IN
= 2.8V, ∆I
LOAD
= 1mA to 2.7A, 110°C < T
J
≤ 125°C25mV
LT1764-2.5 V
IN
= 3.5V, ∆I
LOAD
= 1mA to 3A 4 10 mV
V
IN
= 3.5V, ∆I
LOAD
= 1mA to 3A, –40°C ≤ T
J
≤ 110°C30mV
V
IN
= 3.5V, ∆I
LOAD
= 1mA to 2.7A, 110°C < T
J
≤ 125°C30mV
LT1764-3.3 V
IN
= 4.3V, ∆I
LOAD
= 1mA to 3A 4 12 mV
V
IN
= 4.3V, ∆I
LOAD
= 1mA to 3A, –40°C ≤ T
J
≤ 110°C40mV
V
IN
= 4.3V, ∆I
LOAD
= 1mA to 2.7A, 110°C < T
J
≤ 125°C40mV
LT1764 (Note 3) V
IN
= 2.7V, ∆I
LOAD
= 1mA to 3A 2 5 mV
V
IN
= 2.7V, ∆I
LOAD
= 1mA to 3A, –40°C ≤ T
J
≤ 110°C20mV
V
IN
= 2.7V, ∆I
LOAD
= 1mA to 2.7A, 110°C < T
J
≤ 125°C20mV
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
= 2.7A, 110°C < T
J
≤ 125°C 0.66 V
I
LOAD
= 3A 0.34 0.45 V
I
LOAD
= 3A, –40°C ≤ T
J
≤ 110°C 0.66 V
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C. (Note 2)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

LT1764EQ-1.5#PBF

Mfr. #:
Buy LT1764EQ-1.5#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
LDO Voltage Regulators 1.5V Fast Transient 3A LDO
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet