LT1913

3

1913f

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Feedback Voltage

●

780

775

790

790

800

805

mV

mV

FB Pin Bias Current (Note 3)

●

10

40

nA

FB Voltage Line Regulation

0.002

0.01

%/V

525

μMho

Error Amp Gain

2000

60

μA

60

μA

5.3

A/V

2.0

V

Switching Frequency

2.2

1.0

200

2.45

1.1

230

2.7

1.25

260

MHz

MHz

kHz

Minimum Switch Off-Time

●

60

150

nS

Switch Current Limit

Duty Cycle = 5%

4.6

5.4

6.0

A

335

mV

Boost Schottky Reverse Leakage

0.02

2

μA

Minimum Boost Voltage (Note 4)

●

1.5

2.0

V

BOOST Pin Current

35

60

mA

RUN/SS Pin Current

5

8

μA

RUN/SS Input Voltage High

2.5

V

RUN/SS Input Voltage Low

0.2

V

PG Threshold Offset from Feedback Voltage

65

mV

PG Hysteresis

10

mV

PG Leakage

0.1

1

μA

PG Sink Current

●

200

800

μA

SYNC Low Threshold

0.5

V

SYNC High Threshold

0.8

V

SYNC Pin Bias Current

0.1

μA

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: The LT1913E is guaranteed to meet performance specifications

from 0°C to 125°C. Specifications over the –40°C to 125°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls. The LT1913I specifications are

guaranteed over the –40°C to 125°C temperature range.

Note 3: Bias current flows out of the FB pin.

Note 4: This is the minimum voltage across the boost capacitor needed to

guarantee full saturation of the switch.

noted. (Note 2)

ELECTRICAL CHARACTERISTICS