LT8604

3

Rev. 0

For more information www.analog.com

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Input Voltage

l

2.9

3.2

V

l

1

1.7

4

12

µA

µA

56

400

µA

µA

Feedback Reference Voltage

l

0.762

0.778

0.798

V

FB Voltage Line Regulation

l

±0.002

±0.04

%/V

FB Pin Input Current

l

±20

nA

BIAS Pin Current Consumption

0.9

mA

Minimum On-Time

l

35

65

ns

Minimum Off-Time

90

120

ns

Oscillator Frequency

l

l

140

1.85

200

2.00

260

2.15

kHz

MHz

Top Power NMOS On-Resistance

3.2

Ω

Top Power NMOS Current Limit

l

185

230

275

mA

Bottom Power NMOS On-Resistance

1.2

Ω

SW Leakage Current

l

15

µA

EN/UV Pin Threshold

Pin Voltage Rising

l

0.98

1.04

1.11

V

V

EN/UV Pin Hysteresis

40

mV

EN/UV Pin Current

±20

nA

l

5.0

7.5

10.0

%

l

–5.0

–7.5

–10.0

%

PG Hysteresis

0.5

%

PG Leakage

l

±200

nA

PG Pull-Down Resistance

550

1200

Ω

TR/SS Source Current

l

1

2

3.5

µA

TR/SS Pull-Down Resistance

300

900

Ω

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 LT8604E is guaranteed to meet performance specifications

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

to 125°C operating junction temperature range are assured by design,

characterization and correlation with statistical process controls. The

LT8604I is guaranteed over the full –40°C to 125°C operating junction

temperature range. The LT8604J is guaranteed over the full –40°C to

150°C operating junction temperature range. High junction temperatures

degrade operating lifetimes. Operating lifetime is derated at junction

temperatures greater than 125°C.

Note 3: This IC includes overtemperature protection that is intended to

protect the device during overload conditions. Junction temperature will

exceed 150°C when overtemperature protection is active. Continuous

operation above the specified maximum operating junction temperature

will reduce lifetime

l

denotes the specifications which apply over the full operating