LTC3713 datasheet(2/24 Pages) LINER

2 / 24 page

LTC3713

3713fa

(Note 1)

Input Supply Voltage (VIN2) .......................10V to – 0.3V

Boosted Topside Driver Supply Voltage

(BOOST) ............................................... 42V to – 0.3V

VIN1, ION, SW1, SENSE+ Voltages ............. 36V to – 0.3V

RUN/SS, PGOOD Voltages ......................... 7V to – 0.3V

FCB, VON, VRNG Voltages .......... INTVCC + 0.3V to – 0.3V

ITH, VFB1, SENSE– Voltages ..................... 2.7V to – 0.3V

SW2 Voltage ............................................. 36V to – 0.4V

VFB2 Voltage ................................................. VIN2 + 0.3V

SHDN Voltage ......................................................... 10V

TG, BG, INTVCC Peak Currents.................................. 2A

TG, BG, INTVCC RMS Currents ............................ 50mA

Operating Ambient Temperature

Range (Note 4) ................................... – 40

°C to 85°C

Junction Temperature (Note 2) ............................ 125

°C

Storage Temperature Range ................. – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

ORDER PART

NUMBER

LTC3713EG

TJMAX = 125°C, θJA = 130°C/ W

The q denotes specifications which apply over the full operating

temperature range, otherwise specifications are TA = 25°C. VIN1 = 15V, VIN2 = 1.5V unless otherwise noted.

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

ELECTRICAL CHARACTERISTICS

TOP VIEW

G PACKAGE

24-LEAD PLASTIC SSOP

RUN/SS

VON

PGOOD

VRNG

FCB

ITH

SGND1

ION

VFB1

SHDN

SGND2

VFB2

BOOST

SW1

SENSE+

SENSE–

PGND1

INTVCC

VIN1

VIN2

PGND2

SW2

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

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Buck Regulator

IQ(VIN1)

Input DC Supply Current (VIN1)

Normal

900

2000

µA

Shutdown Supply Current

µA

VFB1

Feedback Reference Voltage

ITH = 1.2V (Note 3)

0.792

0.800

0.808

IFB1

Feedback Current

(Note 3)

–5

±50

∆VFB1(LINEREG) Feedback Voltage Line Regulation

VIN1 = 4V to 30V, ITH = 1.2V (Note 3)

0.002

%/V

∆VFB1(LOADREG) Feedback Voltage Load Regulation

ITH = 0.5V to 1.9V (Note 3)

– 0.05

– 0.3

gm(EA)

Error Amplifier Transconductance

ITH = 1.2V (Note 3)

1.4

1.7

VFCB

Forced Continuous Threshold

0.76

0.8

0.84

IFCB

Forced Continuous Pin Current

VFCB = 0.8V

– 1

– 2

µA

tON

On-Time

ION = 60µA, VON = 1.5V

200

250

300

ION = 30µA, VON = 1.5V

400

500

600

tON(MIN)

Minimum On-Time

ION = 180µA

100

tOFF(MIN)

Minimum Off-Time

250

400

VSENSE(MAX)

Maximum Current Sense Threshold

VRNG = 1V, VFB1 = 0.76V

113

133

153

VPGND – VSW

VRNG = 0V, VFB1 = 0.76V

107

VRNG = INTVCC, VFB1 = 0.76V

158

186

214

VSENSE(MIN)

Minimum Current Sense Threshold

VRNG = 1V, VFB1 = 0.84V

– 67

VPGND – VSW

VRNG = 0V, VFB1 = 0.84V

– 47

VRNG = INTVCC, VFB1 = 0.84V

– 93

∆VFB1(OV)

Output Overvoltage Fault Threshold

5.5

7.5

9.5

∆VFB1(UV)

Output Undervoltage Fault Threshold

520

600

680

VRUN/SS(ON)

RUN Pin Start Threshold

0.8

1.5

VRUN/SS(LE)

RUN Pin Latchoff Enable Threshold

RUN/SS Pin Rising

4.5

VRUN/SS(LT)

RUN Pin Latchoff Threshold

RUN/SS Pin Falling

3.5

4.2

LTC3713 Datasheet(PDF) 2 Page - Linear Technology

LTC3713 Datasheet(HTML) 2 Page - Linear Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Datasheet Download

Link URL