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LT3464

3464f

VIN, SHDN, CTRL Voltage ........................................ 10V

OUT, CAP Voltage .................................................... 36V

SW Voltage .............................................................. 36V

FB Voltage ................................................................. 6V

Maximum Junction Temperature .......................... 125

°C

Operating Temperature Range (Note 2) .. –40

°C to 85°C

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

°C to 150°C

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

°C

ORDER PART

NUMBER

TJMAX = 125°C, θJA = 140°C/W, θJC = 85°C/W

LT3464ETS8

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

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

temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, unless otherwise noted. (Note 2)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Input Voltage

2.0

2.3

Quiescent Current

Not Switching

µA

VSHDN = 0.2V

0.01

0.5

µA

FB Comparator Trip Voltage

VFB Falling, VCTRL = 3.6V

1.215

1.250

1.275

FB Comparator Hysteresis

FB Pin Bias Current

VFB = 1.25V, VCTRL = 3.6V

330

FB Voltage Line Regulation

2.3V < VIN < 10V

0.05

0.1

%/V

Switch Off Time

VCAP-VIN = 5V

250

VCAP-VIN = 0V

1.0

µs

Switch Leakage Current

VSW = 36V

0.02

µA

Switch VCESAT

ISW = 80mA

190

300

Switch Current Limit

115

140

Schottky Forward Voltage

ISCHOTTKY = 110mA

600

750

Schottky Reverse Leakage

VCAP-SW = 36V

µA

PNP Disconnect VCAP-OUT

IOUT = 200µA

100

IOUT = 10mA

190

PNP Disconnect Q Current

IOUT = 0, VCAP = 36V (Note 3)

1.5

µA

PNP Disconnect Leakage

SHDN = 0.2, VCAP = 10V, VOUT = 0V

0.1

µA

PNP Disconnect Current Limit

VCAP = 10V, VOUT = 0V

SHDN Pin Current

VSHDN = 3.6V

µA

SHDN Input Voltage High

2.3

SHDN Input Voltage Low

0.2

CTRL Pin Bias Current

VCTRL = 0.5V, VFB = 1V

680

CTRL to FB Offset

VCTRL = 0.5V (Note 4)

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

Note 1:

Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2:

The LT3464E is guaranteed to meet performance specifications

from 0

°C to 70°C. Specifications over the –40°C to 85°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls.

Note 3:

Current consumed by Disconnect PNP when there is no load on

the OUT pin.

Note 4:

This figure is computed according to ((VFB falling + VFB rising)/2)

–VCONTROL.

CTRL 1

FB 2

OUT 3

GND 4

8 SHDN

7 VIN

6 SW

5 CAP

TOP VIEW

TS8 PACKAGE

8-LEAD PLASTIC SOT-23

TS8 PART MARKING

LTG2

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