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LTM4603/LTM4603-1

4603f

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Control Stage

VFB

Error Ampliﬁer Input Voltage

Accuracy

IOUT = 0A, VOUT = 1.5V

●

0.594

0.6

0.606

VRUN

RUN Pin On/Off Threshold

1.5

1.9

ISS/TRACK

Soft-Start Charging Current

VSS/TRACK = 0V

–1

–1.5

–2

µA

tON(MIN)

Minimum On Time

(Note 4)

100

tOFF(MIN)

Minimum Off Time

(Note 4)

250

400

RPLLIN

PLLIN Input Resistance

IDRVCC

Current into DRVCC Pin

VOUT = 1.5V, IOUT = 1A,

Frequency = 1MHz, DRVCC = 5V

RFBHI

Resistor Between VOUT and VFB

60.098

60.4

60.702

VMPGM

Margin Reference Voltage

1.18

VMARG0, VMARG1

MARG0, MARG1 Voltage Thresholds

1.4

PGOOD Output

ΔVFBH

PGOOD Upper Threshold

VFB Rising

ΔVFBL

PGOOD Lower Threshold

VFB Falling

–7

–10

–13

ΔVFB(HYS)

PGOOD Hysteresis

VFB Returning

1.5

VPGL

PGOOD Low Voltage

IPGOOD = 5mA

0.15

0.4

The

● 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

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 LTM4603E/LTM4603-1 are 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 LTM4603E/LTM4603-1

are guaranteed and tested over the –40°C to 85°C temperature range.

Note 3: Remote sense ampliﬁer recommended for ≤3.3V output.

Note 4: 100% tested at wafer level only.

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