LT3587 データシートの表示（PDF） - Linear Technology

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LT3587

High Voltage Monolithic Inverter and Dual Boost

Linear Technology 

LT3587

ABSOLUTE MAXIMUM RATINGS

(Note 1)

VIN ..............................................................................6V

Soft-Start Input Pins

EN/SS1, EN/SS3 .....................................................6V

Feedback Pins

FB1, FB2, IFB3, VFB3 ................................. –0.2V to 6V

High Voltage Switch Pins

SW1, SW2, SW3...................................................40V

High Voltage Output Pins

CAP1, CAP3, VOUT1, VOUT3 ...................................32V

Bidirectional I/O Pin

FLT ..........................................................................6V

FLT Current ........................................................10mA

Operating Junction Temperature Range.. –40°C to 125°C

Storage Temperature Range................... –65°C to 125°C

PIN CONFIGURATION

TOP VIEW

VOUT3

CAP3

20 19 18 17 16

1

15 FB1

2

14 VOUT1

SW3 3

21

13 CAP1

GND 4

12 GND

FLT 5

11 SW1

6 7 8 9 10

UD PACKAGE

20-LEAD (3mm s 3mm) PLASTIC QFN

θJA = 68°C/W, θJC = 4.2°C/W

EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

LT3587EUD#PBF

LT3587EUD#TRPBF

LDNC

20-Lead (3mm × 3mm) Plastic QFN

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

Consult LTC Marketing for information on non-standard lead based finish parts.

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/

TEMPERATURE RANGE

–40°C to 125°C

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

temperature range, otherwise specifications are at TA = 25°C. VVIN = 3.6V, VEN/SS1 = VEN/SS3 = VVIN unless otherwise noted (Note 2, 3).

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

Operating Input Voltage Range

2.5

6

V

Quiescent Current

Switching Frequency

VEN/SS1 = 0V, VEN/SS3 = VVIN OR

VEN/SS1 = VVIN, VEN/SS3 = 0V OR

VEN/SS1 = VEN/SS3 = VVIN

Not Switching

VEN/SS1 = VEN/SS3 = 0V, In Shutdown

2.4

4

mA

5.5

9

μA

l 0.8

1

1.2

MHz

Maximum Duty Cycle

l 87

93

%

Minimum On Time

Power Fault Delay from Any Output to FLT

FLT Input Threshold Low

FLT Leakage Current

FLT Voltage Output Low

VFLT = 5V

IFLT = 1mA

50

70

ns

16

ms

l 0.4

1.0

1.6

V

l

±1

μA

l

0.4

V

3587fc

2

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