LTC1758-2EMS datasheet(2/16 Pages) LINER

Part #	LTC1758-2EMS

Description	RF Power Controllers with 250kHz Control Loop Bandwidth and 40dB Dynamic Range

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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2

LTC1758-1/LTC1758-2

VIN to GND ............................................... –0.3V to 6.5V

VPCA, VPCB Voltage ..................................... – 0.3V to 3V

PCTL Voltage ............................... – 0.3V to (VIN + 0.3V)

RF Voltage ........................................ (VIN – 2.2V) to 7V

IVCC, Continuous ....................................................... 1A

IVCC, 12.5% Duty Cycle .......................................... 2.5A

SHDN, TXEN, BSEL

Voltage to GND ............................ – 0.3V to (VIN + 0.3V)

ORDER PART

NUMBER

MS10 PART MARKING

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

LTC1758-2EMS

LTSM

TJMAX = 125°C, θJA = 160°C/W

1

2

3

4

5

VIN

RF

SHDN

BSEL

GND

10

9

8

7

6

VCC

VPCA

VPCB

TXEN

PCTL

TOP VIEW

MS10 PACKAGE

10-LEAD PLASTIC MSOP

IVPCA/B, 25% Duty Cycle ...................................... 20mA

Operating Temperature Range (Note 2) . – 30

°C to 85°C

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

°C to 150°C

Maximum Junction Temperature ........................ 125

°C

Lead Temperature (Soldering, 10 sec)................ 300

°C

(Note 1)

ORDER PART

NUMBER

MS8 PART MARKING

LTC1758-1EMS8

LTSL

The q denotes specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, SHDN = TXEN = HI, unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN Operating Voltage

q

2.7

6

V

IVIN Shutdown Current

SHDN = LO, TXEN = LO, BSEL = LO

q

1

µA

IVIN Autozero Current

SHDN = HI, TXEN = LO

q

1

1.6

mA

IVIN Operating Current

SHDN = HI, TXEN = HI, IVPCA = IVPCB = 0mA, VPCA/B = HI

1.1

1.7

mA

IVCC Current Limit

2.2

A

VIN to VCC Resistance

SHDN = LO, TXEN = LO

90

150

m

Ω

VPCA/B VOL

TXEN = HI, Open Loop, PCTL = –100mV

q

0

0.1

V

VPCA/B Dropout Voltage

ILOAD = 5.5mA, VIN = 2.7V

q

VIN – 0.28

V

VPCA/B Voltage Clamp

RLOAD = 400Ω, PCTL = 2V, External Gain = 0.417

q

2.7

2.85

3.0

V

VPCA/B Output Current

VPCA/B = 2.4V, VIN = 2.7V

q

5.5

9

mA

VPCA/B = 2.6V, VIN = 3V

q

610

mA

VPCA/B Enable Time

VPCTL = 2V Step, CLOAD = 100pF (Note 5)

q

620

1000

ns

VPCA/B Bandwidth

CLOAD = 100pF, RLOAD = 400Ω (Note 8)

q

180

250

330

kHz

VPCA/B Load Capacitance

(Note 6)

100

pF

VPCA/B Slew Rate

VPCTL = 2V Step, CLOAD = 100pF (Note 3)

q

0.75

1.3

V/

µs

VPCA/B Droop

VIN = 2.7V, VPCTL = 2V Step

±1

µV/ms

VPCA/B TXEN Start Voltage

Open Loop, TXEN Low to High, CLOAD = 100pF (Note 9)

500

600

700

mV

SHDN Input Threshold

VIN = 2.7V to 6V, TXEN = LO

q

0.35

1.4

V

TXEN, BSEL Input Threshold

VIN = 2.7V to 6V

q

0.35

1.4

V

TJMAX = 125°C, θJA = 160°C/W

1

2

3

4

VIN

RF

SHDN

GND

8

7

6

5

VCC

VPCA

TXEN

PCTL

TOP VIEW

MS8 PACKAGE

8-LEAD PLASTIC MSOP

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

ELECTRICAL CHARACTERISTICS

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