LTM4602 datasheet(3/24 Pages) LINER

3 / 24 page

LTM4602

4602fa

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 LTM4602E 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. The LTM4602I is guaranteed over the

–40°C to 85°C temperature range.

Note 3: Test assumes current derating versus temperature.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

IS(VIN)

Input Supply Current

VIN = 12V, VOUT = 1.5V, IOUT = 6A

VIN = 12V, VOUT = 3.3V, IOUT = 6A

VIN = 5V, VOUT = 1.5V, IOUT = 6 A

0.88

1.80

2.08

Output Speciﬁcations

IOUTDC

Output Continuous Current Range

(See Output Current Derating Curves for

Different VIN, VOUT and TA)

VIN = 12V, VOUT = 1.5V

ΔVOUT(LINE)

VOUT

Line Regulation Accuracy

VOUT = 1.5V, IOUT = 0A, FCB = 0V,

VIN = 4.5V to 20V

0.15

0.3

ΔVOUT(LOAD)

VOUT

Load Regulation Accuracy

VOUT = 1.5V, IOUT = 0A to 6A, FCB = 0V,

VIN = 5V, VIN = 12V (Note 3)

±0.25

±0.15

±0.5

±1.0

VOUT(AC)

Output Ripple Voltage

VIN = 12V, VOUT = 1.5V, IOUT = 0A, FCB = 0V

mVP-P

Output Ripple Voltage Frequency

VOUT = 1.5V, IOUT = 6A, FCB = 0V

850

kHz

tSTART

Turn-On Time

VOUT = 1.5V, IOUT = 1A

VIN = 12V

VIN = 5V

0.5

0.7

ΔVOUTLS

Voltage Drop for Dynamic Load Step

VOUT = 1.5V, Load Step: 0A/μs to 3A/μs

COUT = 22μF 6.3V, 330μF 4V POSCAP,

See Table 2

tSETTLE

Settling Time for Dynamic Load Step

Load: 10% to 50% to 10% of Full Load

μs

IOUTPK

Output Current Limit

Output Voltage in Foldback

VIN = 12V, VOUT = 1.5V

VIN = 5V, VOUT = 1.5V

Control Stage

VOSET

Voltage at VOSET Pin

IOUT = 0A, VOUT = 1.5V

0.591

0.6

0.609

VRUN/SS

RUN ON/OFF Threshold

0.8

1.5

IRUN(C)/SS

Soft-Start Charging Current

VRUN/SS = 0V

–0.5

–1.2

–3

μA

IRUN(D)/SS

Soft-Start Discharging Current

VRUN/SS = 4V

0.8

1.8

μA

VIN – SVIN

EXTVCC = 0V, FCB = 0V

100

IEXTVCC

Current into EXTVCC Pin

EXTVCC = 5V, FCB = 0V, VOUT = 1.5V,

IOUT = 0A

RFBHI

Resistor Between VOUT and VOSET Pins

100

kΩ

VFCB

Forced Continuous Threshold

0.57

0.6

0.63

IFCB

Forced Continuous Pin Current

VFCB = 0.6V

–1

–2

μA

PGOOD Output

ΔVOSETH

PGOOD Upper Threshold

VOSET Rising

7.5

12.5

ΔVOSETL

PGOOD Lower Threshold

VOSET Falling

–7.5

–10

–12.5

ΔVOSET(HYS)

PGOOD Hysteresis

VOSET Returning

VPGL

PGOOD Low Voltage

IPGOOD = 5mA

0.15

0.4

The

l denotes the speciﬁcations which apply over the –40°C to 85°C

temperature range, otherwise speciﬁcations are at TA = 25°C, VIN = 12V. Per typical application (front page) conﬁguration.

ELECTRICAL CHARACTERISTICS

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