LTC3602

3

3602fb

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 LTC3602E is guaranteed to meet performance specifications

from 0°C to 85°C. Specifications over the –40°C to 85°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Power Good Range

±10

±12

%

Power Good Resistance

11

18

Ω

FB Input Bias Current

10

nA

1.7

ms

Supply Current

Active Mode

Sleep Mode

Shutdown

(Note 4)

500

75

0.2

700

100

1

μA

μA

μA

4.8

5

5.2

V

Minimum Controllable ON-Time

90

ns

RUN Pin ON Threshold

l

0.4

0.7

1

V

TRACK/SS Pull-Up Current

1.25

μA

Oscillator Frequency

0.8

1

1.2

MHz

SYNC Capture Range

0.3

3

MHz

Top Switch On-Resistance

Bottom Switch On-Resistance

90

67

mΩ

mΩ

Peak Current Limit

3.8

4.5

5.2

A

Switch Leakage Current

0.1

1

μA

4.1

4.2

4.3

V

700

mV

Note 4: Dynamic supply current is higher due to the internal gate charge

being delivered at the switching frequency.

Note 6: This IC includes overtemperature protection that is intended

to protect the device during momentary overload conditions. Junction

temperature will exceed 125°C when overtemperature protection is active.

Continuous operation above the specified maximum operating junction

temperature may impair device reliability.

Note 7: This limit indicates the current density limitations of the internal

metallization and it is not tested in production.

TYPICAL PERFORMANCE CHARACTERISTICS

Burst Mode Operation

Load Step Transient Forced Continuous

10μs/DIV

OUTPUT

VOLTAGE

50mV/DIV

INDUCTOR

CURRENT

500mA/DIV

3602 G01

LOAD = 50mA

10μs/DIV

OUTPUT

VOLTAGE

100mV/DIV

LOAD

CURRENT

1A/DIV

3602 G02