LTC4555EUD-PBF datasheet(2/8 Pages) LINER

Part #	LTC4555EUD-PBF

Description	SIM Power Supply and Level Translator

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC4555

2

4555fb

VBAT, DVCC, VCC to GND............................ –0.3V to 6.5V

Digital Inputs to GND ................................ –0.3V to 6.5V

CLK, RST, I/O to GND .......................–0.3V to VCC + 0.3V

VCC Short-Circuit Duration ................................... Inﬁnite

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

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

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

(Note 1)

16 15 14 13

5

6

7

8

TOP VIEW

17

UD PACKAGE

16-LEAD (3mm

3mm) PLASTIC QFN

9

10

11

12

4

3

2

1

SHDN

VSEL

DVCC

NC

CLK

GND

RST

TJMAX = 125°C, θJA = 68°C/W, θJC = 4.2°C/W

EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC4555EUD#PBF

LTC4555EUD#TRPBF

LAAA

16-Lead (3mm

× 3mm) Plastic QFN

–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/

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

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

temperature range, otherwise speciﬁcations are at TA = 25°C.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VBAT Operating Voltage

l

36

V

VBAT Operating Current

ICC = 0mA

l

20

30

μA

VBAT Shutdown Current

SHDN = 0V, VBAT = 4.5V

l

1μA

DVCC Operating Voltage

l

1.2

4.4

V

DVCC Operating Current

fCLK = 1MHz

l

510

μA

DVCC Shutdown Current

SHDN = 0V

l

1μA

DVCC Undervoltage Lockout

l

0.5

1.1

V

VCC Output Voltage

VSEL = DVCC, VBAT = 3V, IVCC = 50mA

VSEL = DVCC, VBAT = 3.3V to 6V, IVCC = 0mA to 50mA

VSEL = 0, VBAT = 2.6V to 6V, IVCC = 0mA to 50mA

l

2.8

1.7

2.8

3.0

1.8

3.2

1.9

V

VCC Short-Circuit Current

VCC Shorted to GND

60

110

175

mA

Controller Inputs/Outputs

Input Voltage Range

SHDN, VSEL, RIN, CIN, DATA

0

DVCC

V

Input Current (IIH/IIL)

SHDN, VSEL, RIN, CIN

l

–100

100

nA

High Input Threshold Voltage (VIH)RIN, CIN

l

0.7

× DVCC

V

Low Input Threshold Voltage (VIL)RIN, CIN

l 0.2 × DVCC

V

High Input Threshold Voltage (VIH)

SHDN, VSEL

l

1V

Low Input Threshold Voltage (VIL)

SHDN, VSEL

l

0.4

V

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