LT1610CS8 datasheet(3/16 Pages) LINER

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LT1610

ELECTRICAL C

HARA TERISTICS The q denotes specifications which apply over the specified temperature

range, otherwise specifications are at TA = 25°C. Commercial grade 0°C to 70°C, VIN = 1.5V, VSHDN = VIN, unless otherwise noted.

(Note 2)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Switch Current Limit

(Note 3)

450

600

900

Switch VCESAT

ISW = 300mA

300

350

400

Switch Leakage Current

VSW = 5V

0.01

µA

SHDN Input Voltage High

SHDN Input Voltage Low

0.3

SHDN Pin Bias Current

VSHDN = 3V

µA

VSHDN = 0V

0.01

0.1

µA

The q denotes specifications which apply over the specified temperature range, otherwise specifications are at TA = 25°C.

Industrial grade – 40

°C to 85°C, VIN = 1.5V, VSHDN = VIN, unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Operating Voltage

TA = 85°C

0.9

TA = – 40°C

1.25

Maximum Operating Voltage

Feedback Voltage

1.20

1.23

1.26

Quiescent Current

µA

Quiescent Current in Shutdown

VSHDN = 0V, VIN = 2V

0.01

0.5

µA

VSHDN = 0V, VIN = 5V

0.01

1.0

µA

FB Pin Bias Current

Reference Line Regulation

≤ VIN ≤ 8V (–40°C)

0.03

0.15

%/V

≤ VIN ≤ 8V (85°C)

0.2

%/V

Error Amp Transconductance

∆I = 2µA25

µmhos

Error Amp Voltage Gain

100

V/V

Switching Frequency

(Note 4)

1.4

1.7

MHz

Maximum Duty Cycle

(Note 4)

Switch Current Limit

450

600

900

Switch VCESAT

ISW = 300mA

300

350

400

Switch Leakage Current

VSW = 5V

0.01

µA

SHDN Input Voltage High

SHDN Input Voltage Low

0.3

SHDN Pin Bias Current

VSHDN = 3V

µA

VSHDN = 0V

0.01

0.1

µA

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: The LT1610C is guaranteed to meet specified performance from

°C to 70°C and is designed, characterized and expected to meet these

extended temperature limits, but is not tested at – 40

°C and 85°C. The

LT1610I is guaranteed to meet the extended temperature limits.

Note 3: Current limit guaranteed by design and/or correlation to static test.

Current limit is affected by duty cycle due to ramp generator. See Block

Diagram.

Note 4: Not 100% tested at 85

°C.

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