LTM4601A View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTM4601A

12A DC/DC µModules with PLL, Output Tracking and Margining

Linear Technology 

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LTM4601A/LTM4601A-1

ELECTRICAL CHARACTERISTICS 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.

SYMBOL

PARAMETER

CONDITIONS

SR

RIN

CMRR

Slew Rate

Input Resistance

Common Mode Rejection Mode

VOSNS+ to GND

Control Stage

VFB

Error Amplifier Input Voltage

IOUT = 0A, VOUT = 1.5V

Accuracy

VRUN

ISS/TRACK

tON(MIN)

tOFF(MIN)

RPLLIN

IDRVCC

RFBHI

VMPGM

VMARG0, VMARG1

PGOOD Output

RUN Pin On/Off Threshold

Soft-Start Charging Current

Minimum On-Time

VSS/TRACK = 0V

(Note 4)

Minimum Off-Time

(Note 4)

PLLIN Input Resistance

Current into DRVCC Pin

Resistor Between VOUT_LCL and VFB

Margin Reference Voltage

VOUT = 1.5V, IOUT = 1A, DRVCC = 5V

MARG0, MARG1 Voltage Thresholds

ΔVFBH

ΔVFBL

ΔVFB(HYS)

VPGL

PGOOD Upper Threshold

PGOOD Lower Threshold

PGOOD Hysteresis

PGOOD Low Voltage

VFB Rising

VFB Falling

VFB Returning

IPGOOD = 5mA

MIN TYP

2

20

100

MAX UNITS

V/μs

kΩ

dB

l 0.594 0.6

0.606

V

1

1.5

1.9

V

–1

–1.5

–2

μA

50

100

ns

250

400

ns

50

kΩ

18

25

mA

60.098 60.4 60.702

kΩ

1.18

V

1.4

V

7

10

13

%

–7

–10

–13

%

1.5

%

0.15

0.4

V

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 LTM4601AE/LTM4601AE-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

LTM4601AI/LTM4601AI-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.

Note 5: See Output Current Derating curves for different VIN, VOUT and TA.

4601afb

4

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