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LT1764 Series

1764fa

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Input Voltage

ILOAD = 0.5A

1.7

(Notes 3, 11)

ILOAD = 1.5A

1.9

ILOAD = 2.7A, 110°C < TJ ≤ 125°C

2.3

2.7

ILOAD = 3A, – 40°C ≤ TJ ≤ 110°C

2.3

2.7

Regulated Output Voltage

LT1764-1.5

VIN = 2.21V, ILOAD = 1mA

1.477

1.500

1.523

(Note 4)

2.7V < VIN < 20V, 1mA < ILOAD < 3A, – 40°C ≤ TJ ≤ 110°C

1.447

1.500

1.545

2.7V < VIN < 20V, 1mA < ILOAD < 2.7A, 110°C < TJ ≤ 125°C

1.447

1.500

1.545

LT1764-1.8

VIN = 2.3V, ILOAD = 1mA

1.773

1.800

1.827

2.8V < VIN < 20V, 1mA < ILOAD < 3A, – 40°C ≤ TJ ≤ 110°C

1.737

1.800

1.854

2.8V < VIN < 20V, 1mA < ILOAD < 2.7A, 110°C < TJ ≤ 125°C

1.737

1.800

1.854

LT1764-2.5

VIN = 3V, ILOAD = 1mA

2.462

2.500

2.538

3.5V < VIN < 20V, 1mA < ILOAD < 3A, – 40°C ≤ TJ ≤ 110°C

2.412

2.500

2.575

3.5V < VIN < 20V, 1mA < ILOAD < 2.7A, 110°C < TJ ≤ 125°C

2.412

2.500

2.575

LT1764-3.3

VIN = 3.8V, ILOAD = 1mA

3.250

3.300

3.350

4.3V < VIN < 20V, 1mA < ILOAD < 3A, – 40°C ≤ TJ ≤ 110°C

3.183

3.300

3.400

4.3V < VIN < 20V, 1mA < ILOAD < 2.7A, 110°C < TJ ≤ 125°C

3.183

3.300

3.400

ADJ Pin Voltage

LT1764

VIN = 2.21V, ILOAD = 1mA

1.192

1.210

1.228

(Notes 3, 4)

2.7V < VIN < 20V, 1mA < ILOAD < 3A, – 40°C ≤ TJ ≤ 110°C

1.168

1.210

1.246

2.7V < VIN < 20V, 1mA < ILOAD < 2.7A, 110°C < TJ ≤ 125°C

1.168

1.210

1.246

ABSOLUTE MAXIMUM RATINGS

PACKAGE/ORDER INFORMATION

(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

The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C. (Note 2)

ELECTRICAL CHARACTERISTICS

ORDER PART

NUMBER

LT1764EQ

LT1764EQ-1.5

LT1764EQ-1.8

LT1764EQ-2.5

LT1764EQ-3.3

TJMAX = 150°C, θJA = 30°C/ W

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

*PIN 5 = SENSE FOR LT1764-1.8/

LT1764-2.5/LT1764-3.3

= ADJ FOR LT1764

ORDER PART

NUMBER

Q PACKAGE

5-LEAD PLASTIC DD

TAB IS

GND

FRONT VIEW

SENSE/ADJ*

OUT

GND

SHDN

LT1764ET

LT1764ET-1.5

LT1764ET-1.8

LT1764ET-2.5

LT1764ET-3.3

*PIN 5 = SENSE FOR LT1764-1.8/

LT1764-2.5/LT1764-3.3

= ADJ FOR LT1764

TJMAX = 150°C, θJA = 50°C/ W

T PACKAGE

5-LEAD PLASTIC TO-220

FRONT VIEW

TAB IS

GND

SENSE/ADJ*

OUT

GND

SHDN

Consult LTC Marketing for parts specified with wider operating temperature ranges.

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