LTM4607 datasheet(3/28 Pages) LINER

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LTC3780

3780fe

ELECTRICAL CHARACTERISTICS The l denotes the speciﬁcations which apply over the full operating

junction temperature range, otherwise speciﬁcations are at TA = 25°C. VIN = 15V unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Main Control Loop

VOSENSE

Feedback Reference Voltage

ITH = 1.2V, –40°C ≤ T ≤ 85°C (Note 3)

–55°C ≤ T ≤ 125°C

0.792

0.800

0.808

0.811

IVOSENSE

Feedback Pin Input Current

(Note 3)

–5

–50

VLOADREG

Output Voltage Load Regulation

(Note 3)

∆ITH = 1.2V to 0.7V

∆ITH = 1.2V to 1.8V

0.1

–0.1

0.5

–0.5

VREF(LINEREG)

Reference Voltage Line Regulation

VIN = 4V to 30V, ITH = 1.2V (Note 3)

0.002

0.02

%/V

gm(EA)

Error Ampliﬁer Transconductance

ITH = 1.2V, Sink/Source = 3μA (Note 3)

0.32

gm(GBW)

Error Ampliﬁer GBW

(Note 8)

0.6

MHz

Input DC Supply Current

Normal

Standby

Shutdown Supply Current

(Note 4)

VRUN = 0V, VSTBYMD > 2V

VRUN = 0V, VSTBYMD = Open

2400

1500

μA

VFCB

Forced Continuous Threshold

0.76

0.800

0.84

IFCB

Forced Continuous Pin Current

VFCB = 0.85V

–0.30

–0.18

–0.1

μA

VBINHIBIT

Burst Inhibit (Constant Frequency)

Threshold

Measured at FCB Pin

5.3

5.5

UVLO

Undervoltage Reset

VIN Falling

3.8

VOVL

Feedback Overvoltage Lockout

Measured at VOSENSE Pin

0.84

0.86

0.88

ISENSE

Sense Pins Total Source Current

VSENSE– = VSENSE+ = 0V

–380

μA

VSTBYMD(START)

Start-Up Threshold

VSTBYMD Rising

0.4

0.7

VSTBYMD(KA)

Keep-Alive Power-On Threshold

VSTBYMD Rising, VRUN = 0V

1.25

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3780EG#PBF

LTC3780EG#TRPBF

LTC3780EG

24-Lead Plastic SSOP

–40°C to 85°C

LTC3780IG#PBF

LTC3780IG#TRPBF

LTC3780IG

24-Lead Plastic SSOP

–40°C to 125°C

LTC3780EUH#PBF

LTC3780EUH#TRPBF

3780

32-Lead (5mm

× 5mm) Plastic QFN

–40°C to 85°C

LTC3780IUH#PBF

LTC3780IUH#TRPBF

3780I

32-Lead (5mm

× 5mm) Plastic QFN

–40°C to 125°C

LEAD BASED FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3780EG

LTC3780EG#TR

LTC3780EG

24-Lead Plastic SSOP

–40°C to 85°C

LTC3780IG

LTC3780IG#TR

LTC3780IG

24-Lead Plastic SSOP

–40°C to 125°C

LTC3780MPG

LTC3780MPG#TR

LTC3780MPG

24-Lead Plastic SSOP

–55°C to 125°C

LTC3780EUH

LTC3780EUH#TR

3780

32-Lead (5mm

× 5mm) Plastic QFN

–40°C to 85°C

LTC3780IUH

LTC3780IUH#TR

3780I

32-Lead (5mm

× 5mm) Plastic QFN

–40°C to 125°C

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

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel speciﬁcations, go to: http://www.linear.com/tapeandreel/

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