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LTC3208

3208fa

PARAMETERS

CONDITIONS

MIN

TYP

MAX

UNITS

tSU,STA

Repeated Start Condition Setup Time

0.6

µs

tSU,STO

Stop Condition Setup Time

0.6

µs

tHD,DAT(OUT)

Data Hold Time

900

tHD,DAT(IN)

Input Data Hold Time

tSU,DAT

Data Setup Time

100

tLOW

Clock Low Period

1.3

µs

tHIGH

Clock High Period

0.6

µs

Clock Data Fall Time

300

Clock Data Rise Time

300

tSP

Spike Suppression Time

The ● denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. VBAT = 3.6V, DVCC = 3V, ENRGBS = Hi, RREF = 24k, C2 = C3 = 2.2µF,

C1 = C4 = 4.7µF, unless otherwise noted.

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

MTBF of a device may be impaired.

Note 2: Based on long-term current density limitations. Assumes an

operating duty cycle of ≤10% under absolute maximum conditions for

durations less than 10 seconds. Max charge pump current for continuous

operation is 500mA.

Note 3: Based on long-term current density limitations.

Note 4: The LTC3208E is guaranteed to meet performance speciﬁcations

from 0°C to 70°C. Speciﬁcations over the – 40°C to 85°C ambient

operating temperature range are assured by design, characterization and

correlation with statistical process controls.

Note 5: 1.5x mode output impedance is deﬁned as (1.5VBAT – VCPO)/IOUT.

2x mode output impedance is deﬁned as (2VBAT – VCPO)/IOUT.

Note 6: All values are referenced to VIH and VIL levels.

Note 7: Guaranteed by Design.

Mode Switch Dropout Times

1.5x Mode CPO Ripple

2x Mode CPO Ripple

ELECTRICAL CHARACTERISTICS

TYPICAL PERFOR A CE CHARACTERISTICS

250

µs/DIV

VCPO

1V/DIV

3208 G01

1.5x

TA = 25°C

VBAT = 3.6V

500ns/DIV

3208 G02

VCPO

20mV/DIV

AC COUPLED

TA = 25°C

VBAT = 3.6V

ICPO = 400mA

CCPO = 4.7µF

500ns/DIV

VCPO

20mV/DIV

AC COUPLED

3208 G03

TA = 25°C

VBAT = 3.6V

ICPO = 400mA

CCPO = 4.7µF

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