LTC3101 datasheet(2/34 Pages) LINER

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LTC3101

3101fb

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VBAT1, VBAT2, VUSB1, VUSB2 ......................... –0.3V to 6V

VSW1, VSW2, VSW3A, VSW3B

DC............................................................ –0.3V to 6V

Pulsed (<100ns) ...................................... –1.0V to 7V

Voltage (All Other Pins)................................ –0.3V to 6V

Operating Temperature Range (Note 2).... –40°C to 85°C

Maximum Junction Temperature (Note 5)............. 125°C

Storage Temperature Range................... –65°C to 150°C

(Note 1)

24 23 22 21 20 19

TOP VIEW

GND

UF PACKAGE

24-LEAD (4mm × 4mm) PLASTIC QFN

10 11 12

PWM

SW1

BAT1

USB1

SW2

PWRON

HSO

OUT3

USB2

SW3A

BAT2

RESET

TJMAX = 125°C, θJA = 37°C/W

EXPOSED PAD (PIN 25) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3101EUF#PBF

LTC3101EUF#TRPBF

3101

24-Lead (4mm × 4mm) Plastic QFN

–40°C to 85°C

Consult LTC Marketing for parts speciﬁed with wider operating temperature ranges. *The temperature grade is identiﬁed by a label on the shipping container.

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/

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

temperature range, otherwise speciﬁcations are at TA = 25°C. VUSB1 = VUSB2 = VBAT1 = VBAT2 = 3V and VOUT3 = 3.3V, unless

otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Input Operating Voltage

Battery Powered

USB Powered

1.8

5.5

Undervoltage Lockout Threshold

Battery Powered, VBAT Rising

USB Powered, VUSB Rising

1.7

1.8

Input Quiescent Current in Standby

VPWRON = 0V, VPWRKEY = 3V

μA

Input Quiescent Current in Burst Mode Operation

All Converters Enabled, VFB1 = VFB2 = VFB3 = 0.66V

μA

Oscillator Frequency

1.02

1.27

1.52

MHz

Buck Converter 1

Feedback Voltage (FB1 Pin)

583

596

609

Feedback Pin Input Current (FB1 Pin)

150

P-Channel Current Limit

Battery Powered (Note 3)

USB Powered (Note 3)

440

540

Maximum Duty Cycle

100

LTC3101 Datasheet(PDF) 2 Page - Linear Technology

LTC3101 Datasheet(HTML) 2 Page - Linear Technology

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