LTC3554 datasheet(2/36 Pages) LINER

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LTC3554

3554f

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VBUS, VOUT, BVIN

t < 1ms and Duty Cycle < 1% .................. –0.3V to 7V

Steady State............................................. –0.3V to 6V

BAT, NTC, CHRG, SUSP, PBSTAT,

ON, PGOOD, FB1, FB2.................................. –0.3V to 6V

PWR_ON1, PWR_ON2, STBY

HPWR, FSEL (Note 4) ......................–0.3V to VCC + 0.3V

IBAT .............................................................................1A

ISW1, ISW2 (Continuous).......................................300mA

ICHRG, IPGOOD, IPBSTAT ............................................75mA

Operating Temperature Range.................. –40°C to 85°C

Junction Temperature ........................................... 110°C

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

(Notes 1, 2, 3)

ORDER INFORMATION

POWER MANAGER ELECTRICAL CHARACTERISTICS

The

l denotes speciﬁcations that apply over the full operating temperature range, otherwise speciﬁcations are at TA = 25°C,

VBUS = 5V, VBAT = 3.8V, HPWR = SUSP = PWR_ON1 = PWR_ON2 = 0V, RPROG = 1.87k, STBY = High, unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

No-Load Quiescent Currents

IBATQ

Battery Drain Current

IOUT = 0 (Note 5)

VBUS = 0V (Hard Reset)

VBUS = 0V

VBUS = 0V, PWR_ON1 = PWR_ON2 = 3.8V

0.2

6.5

μA

IBATQC

Battery Drain Current, VBUS Available

VBAT = VFLOAT, Timer Timed Out

μA

IBUSQ

VBUS Input Current

100mA, 500mA Modes

SUSP = 5V (Suspend Mode)

300

500

μA

IBVINQ

BVIN Input Current

Shutdown Input Current

One Buck Enabled, Standby Mode

Both Bucks Enabled, Standby Mode

One Buck Enabled

Both Bucks Enabled

VBVIN = 3.8V, VBUS = 0V (Note 8)

PWR_ON1 = STBY = 3.8V

PWR_ON1 = PWR_ON2 = STBY = 3.8V

PWR_ON1 = 3.8V, STBY = 0V

PWR_ON1 = PWR_ON2 = 3.8V, STBY = 0V

0.01

1.5

μA

Input Power Supply

VBUS

Input Supply Voltage

4.35

5.5

IBUS(LIM)

Total Input Current

HPWR = 0V (100mA)

HPWR = 5V (500mA)

400

450

100

500

20 19 18 17 16

TOP VIEW

PD PACKAGE

20-LEAD (3mm × 3mm) PLASTIC UTQFN

9 10

HPWR

FSEL

PBSTAT

PGOOD

NTC

CHRG

SW1

BVIN

SW2

TJMAX = 110°C, θJA = 70°C/W

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

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3554EPD#PBF

LTC3554EPD#TRPBF

FDPT

20-Lead (3mm × 3mm) Plastic UTQFN

–40°C to 85°C

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/

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