LTC3550-1 datasheet(2/24 Pages) LINER

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LTC3550-1

35501f

DCIN, USBIN.............................................. –0.3V to 10V

ENABLE,

⎯C⎯H⎯R⎯G, ⎯P⎯W⎯R, USBPWR ............... –0.3V to 10V

BAT, IDC, IUSB, ITERM ................................ –0.3V to 7V

VCC............................................................... –0.3V to 6V

RUN, VOUT ..................................................–0.3V to VCC

SW (DC)........................................ –0.3V to (VCC + 0.3V)

DCIN Pin Current (Note 2) ..........................................1A

USBIN Pin Current (Note 2) .................................700mA

BAT Pin Current (Note 2) ............................................1A

P-Channel SW Source Current (DC).....................800mA

N-Channel SW Source Current (DC) ....................800mA

Peak SW Sink and Source Current ...........................1.3A

Operating Temperature Range (Note 3) ... –40°C to 85°C

Maximum Junction Temperature .......................... 125°C

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

(Note 1)

The ● denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. VDCIN = 5V, VUSBIN = 5V, VCC = 3.6V unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VDCIN

Wall Adapter Input Supply Voltage

●

4.3

VUSBIN

USB Port Input Supply Voltage

●

4.3

VCC

Buck Regulator Input Supply Voltage

●

2.5

5.5

VENABLE

ENABLE Input Threshold Voltage

0.4

0.7

1.0

RENABLE

ENABLE Pulldown Resistance

1.2

MΩ

VRUN

RUN Threshold Voltage

●

0.3

1.5

IRUN

RUN Leakage Current

●

±0.01

±1

µA

V⎯C⎯H⎯R⎯G

⎯C⎯H⎯R⎯G Output Low Voltage

I⎯C⎯H⎯R⎯G = 5mA

0.35

0.6

V⎯P⎯W⎯R

⎯P⎯W⎯R Output Low Voltage

I⎯P⎯W⎯R = 5mA

0.35

0.6

VUSBPWR

USBPWR Output Low Voltage

IUSBPWR = 200µA

0.35

0.6

VUVDC

DCIN Undervoltage Lockout Voltage

From Low to High

Hysteresis

4.0

4.15

200

4.3

VUVUSB

USBIN Undervoltage Lockout Voltage

From Low to High

Hysteresis

3.8

3.95

200

4.1

ELECTRICAL CHARACTERISTICS

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

DCIN

BAT

IDC

USBPWR

ENABLE

RUN

GND

USBIN

IUSB

ITERM

PWR

CHRG

VOUT

VCC

GND

TOP VIEW

DHC PACKAGE

16-LEAD (5mm

× 3mm) PLASTIC DFN

TJMAX = 125°C, θJA = 40°C (Note 4)

EXPOSED PAD IS GROUND (PIN 17)

MUST BE SOLDERED TO PCB

ORDER PART NUMBER

PART MARKING

LTC3550EDHC-1

35501

Order Options Tape and Reel: Add #TR

Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF

Lead Free Part Marking: http://www.linear.com/leadfree/

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

LTC3550-1 Datasheet(PDF) 2 Page - Linear Technology

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