LTM8005 datasheet(5/26 Pages) LINER

Part #	LTM8005

Description	38VIN Boost 關Module Regulator for LED Drive with 10A Switch

PDF	26 Pages

Scroll/Zoom	100%

Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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5 / 26 page

LTM8005

8005f

For more information www.linear.com/LTM8005

TYPICAL PERFORMANCE CHARACTERISTICS

VREF vs Load

Switching Frequency

vs SS Voltage

Demonstration Circuit DC2257A

Output Current Ripple 34V at 1.2A

LED, 12VIN

DC2257A Conducted EMI with and

without Spread Spectrum Enabled

LED Current vs CTRL1

LED Current vs CTRL2

LED Current vs FB

(CTRL1=CTRL2=VREF)

TA = 25°C, unless otherwise noted.

CTRL1 VOLTAGE (V)

0.25

0.50

0.75

1.25

1.50

0.4

0.8

1.2

1.6

2.0

8005 G01

CTRL2 VOLTAGE (V)

0.25

0.50

0.75

1.25

1.50

0.4

0.8

1.2

1.6

2.0

8005 G02

VFB (V)

0.3

0.6

0.9

1.2

1.5

0.5

1.0

1.5

2.0

8005 G03

VREF vs Load Current

LOAD CURRENT (µA)

135

180

0.5

1.0

1.5

2.0

2.5

8005 G04

VSS (V)

0.3

0.6

0.9

1.2

1.5

RT = 23.2k

140

210

280

350

8005 G05

1µs/DIV

CURRENT RIPPLE

50mA/DIV

8005 G06

CRAMP = 22nF

SPREAD SPECTRUM DISABLED

SPREAD SPECTRUM ENABLED

FREQUENCY (MHz)

0.1

1.1

2.1

3.0

4.0

5.0

100

8005 G07

LTM8005 Datasheet(PDF) 5 Page - Linear Technology

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