LTC3217EUD datasheet(2/12 Pages) LINER

Part #	LTC3217EUD

Description	600mA Low Noise Multi-LED Camera Light Charge Pump

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC3217

2

3217f

VBAT, CPO to GND ....................................... –0.3V to 6V

EN1, EN2 .................................... –0.3V to (VBAT + 0.3V)

ICPO (Note 2) ....................................................... 600mA

IILED1-4 (Note 3) .................................................. 150mA

CPO Short-Circuit Duration ............................. Indefinite

Operating Temperature Range (Note 4) ...–40

°C to 85°C

Storage Temperature Range ..................–65

°C to 125°C

ORDER PART NUMBER

TJMAX = 125°C, θJA = 68°C/W

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

LTC3217EUD

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

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

QFN PART MARKING

LBTQ

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

C1P

CPO

EN1

LED1

C2M

EN2

ISET2

ISET1

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

temperature range, otherwise specifications are at TA = 25°C. VBAT = 3.6V, C1 = C2 = C3 = C4 = 2.2µF, unless otherwise noted.

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/

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VBAT Operating Voltage

●

2.9

4.5

V

IVBAT Operating Current

RISET1 = RISET2 = 20k, EN1 = EN2 = High

ICPO = 0mA, 1x Mode

1

mA

ICPO = 0mA, 1.5x Mode

4

mA

ICPO = 0mA, 2x Mode

6

mA

VBAT Shutdown Current

4

µA

LED 1-4 Current

LED Current Ratio (ILED/ISET1/2)ILED = 25mA to 100mA

●

370

400

430

mA/mA

LED Dropout Voltage

Mode Switch Threshold, ILED = 100mA

330

mV

Mode Switching Delay

EN1 Only

2.5

ms

LED Current Matching

Any Two Outputs, ILED = 100mA

1

%

Charge Pump (CPO)

1x Mode Output Voltage

ICPO = 0mA

VBAT

V

1.5x Mode Output Voltage

ICPO = 0mA

4.5

V

2x Mode Output Voltage

ICPO = 0mA

5.05

V

1x Mode Output Impedance

0.5

Ω

1.5x Mode Output Impedance

VBAT = 3.4V, VCPO ≤ 4.6V (Note 5)

2.8

Ω

2x Mode Output Impedance

VBAT = 3.2V, VCPO ≤ 5.1V (Note 5)

3.2

Ω

CLOCK Frequency

●

0.6

0.85

1.15

MHz

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