LT1269 View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LT1269

4A High Efficiency Switching Regulators

Linear Technology 

TYPICAL APPLICATI S

Boost Converter (5V to 12V)

5V

100µH*

VIN

VSW

LT1271

GND

VC FB

1k

1µF

* COILTRONICS CTX100-2-52

MBR330

10.7k

+

1.24k

12V

0.5A

100µF

25V

1271/69 TA03

LT1271/LT1269

PACKAGE DESCRIPTIO Dimensions in inches (millimeters) unless otherwise noted.

0.256

(6.502)

0.060

(1.524)

0.060

(1.524)

0.183

(4.648)

0.075

(1.905)

0.300

(7.620)

BOTTOM VIEW OF DD PAK

HATCHED AREA IS SOLDER PLATED

COPPER HEAT SINK

0.060

(1.524)

TYP

Q Package

5-Lead Plastic DD Pak

(LTC DWG # 05-08-1461)

0.390 – 0.415

(9.906 – 10.541)

15° TYP

0.330 – 0.370

(8.382 – 9.398)

0.165 – 0.180

(4.191 – 4.572)

0.059

(1.499)

TYP

0.143

+0.012

–0.020

( ) 3.632

+0.305

–0.508

0.057 – 0.077

(1.447 – 1.955)

0.028 – 0.038

(0.711 – 0.965)

0.013 – 0.023

(0.330 – 0.584)

0.045 – 0.055

(1.143 – 1.397)

0.004

+0.008

–0.004

( ) 0.102

+0.203

–0.102

0.095 – 0.115

(2.413 – 2.921)

0.050 ± 0.012

(1.270 ± 0.305)

Q(DD5) 0396

5

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