LTM4613

4

4613fd

For more information www.linear.com/LTM4613

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 LTM4613 is tested under pulsed load conditions such that

TJ ≈ TA. The LTM4613E is guaranteed to meet performance specifications

over the 0°C to 125°C internal operating temperature range. Specifications

over the –40°C to 125°C internal operating temperature range are assured

by design, characterization and correlation with statistical process

controls. The LTM4613I is guaranteed to meet specifications over the

–40°C to 125°C internal operating temperature range. The LTM4613MP

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Control Section

VFB

Voltage at VFB Pin

IOUT = 0A, VOUT = 12V

l

0.591

0.6

0.609

V

VRUN

RUN Pin On/Off Threshold

1

1.5

1.9

V

ITRACK/SS

Soft-Start Charging Current

VTRACK/SS = 0V

–1

–1.5

–2

µA

VFCB

Forced Continuous Threshold

0.57

0.6

0.63

V

IFCB

Forced Continuous Pin Current

VFCB = 0V

–1

–2

µA

tON(MIN)

Minimum On-Time

(Note 3)

50

100

ns

tOFF(MIN)

Minimum Off-Time

(Note 3)

250

400

ns

RPLLIN

PLLIN Input Resistor

50

kΩ

IDRVCC

Current into DRVCC Pin

VOUT = 12V, IOUT = 0A, DRVCC = 5V

22

30

mA

RFBHI

Resistor Between VOUT and VFB

Pins

99.5

100

100.5

kΩ

VMPGM

Margin Reference Voltage

1.18

V

VMARG0,

VMARG1

MARG0, MARG1 Voltage

Thresholds

1.4

V

PGOOD

∆VFBH

PGOOD Upper Threshold

VFB Rising

7

10

13

%

∆VFBL

PGOOD Lower Threshold

VFB Falling

–7

–10

–13

%

∆VFB(HYS)

PGOOD Hysteresis

VFB Returning

1.5

%

VPGL

PGOOD Low Voltage

IPGOOD = 5mA

0.2

0.4

V

ELECTRICAL CHARACTERISTICS The

l

denotes the specifications which apply over the full internal

operating temperature range, otherwise specifications are at TA = 25°C (Note 2), VIN = 24V, unless otherwise noted. Per Typical

Application (front page) configuration.

is guaranteed and tested over the full –55°C to 125°C internal operating

temperature range. Note that the maximum ambient temperature

consistent with these specifications is determined by specific operating

conditions in conjunction with board layout, the rated package thermal

resistance and other environmental factors.

Note 3: 100% tested at die level only.

Note 4: See the Output Current Derating curves for different VIN, VOUT

and TA.

Note 5: Guaranteed by design.