LTM4633 datasheet(3/36 Pages) AD

3 / 36 page

LTM4671

Rev. B

For more information www.analog.com

ORDER INFORMATION

PART NUMBER

PAD OR BALL FINISH

PART MARKING*

PACKAGE

TYPE

MSL

RATING

TEMPERATURE RANGE

(SEE NOTE 2)

DEVICE

FINISH CODE

LTM4671EY#PBF

SAC305 (RoHS)

LTM4671Y

BGA

–40°C to 125°C

LTM4671IY#PBF

LTM4671Y

• Device temperature grade is indicated by a label on the shipping container.

• Pad or ball finish code is per IPC/JEDEC J-STD-609.

• BGA Package and Tray Drawings

• This product is not recommended for second side reflow.

This product is moisture sensitive. For more information, go

to Recommended BGA PCB Assembly and Manufacturing

Procedures.

ELECTRICAL CHARACTERISTICS The

denotes the specifications which apply over the specified internal

operating temperature range. Specified as each individual output channel. TA = 25°C (Note 2), SVIN = VIN = 12V, unless otherwise

noted. Per the typical application in Figure 30.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX UNITS

Switching Regulator Section: (12A Channels)

VIN

Input DC Voltage

3.1

VIN(AFTER START-UP) Input DC Voltage After Start-Up

2.9

VOUT(RANGE)

Output Voltage Range

0.6

3.3

VOUT(DC)

Output Voltage, Total Variation with

Line and Load

CIN = 22µF, COUT = 100µF Ceramic

RFB = 40.2k, Continuous Current Mode

SVIN = VIN = 3.1V to 20V, IOUT = 0A to 12A

1.482 1.50 1.518

IQ(VIN)

Input Supply Bias Current

SVIN = VIN = 12V, VOUT = 1.5V, Continuous Current Mode

SVIN = VIN = 12V, RUN = 0, Shutdown

µA

IS(VIN)

Input Supply Current

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

1.6

IOUT(DC)

Output Continuous Current Range

SVIN = VIN = 12V, VOUT = 1.5V (Note 4)

∆VOUT(LINE)/VOUT

Line Regulation Accuracy

VOUT = 1.5V, VIN = 3.1V to 20V, IOUT = 0A

0.001 0.05

%/V

∆VOUT(LOAD)/VOUT Load Regulation Accuracy

VOUT = 1.5V, IOUT = 0A to 12A

0.2

0.5

VOUT(AC)

Output Ripple Voltage

IOUT = 0A, COUT = 100µF Ceramic

SVIN = VIN = 12V, VOUT = 1.5V

∆VOUT(START)

Turn-On Overshoot

IOUT = 0A, COUT = 100µF Ceramic,

SVIN = VIN = 12V, VOUT = 1.5V

tSTART

Turn-On Time

TRACK/SS = 0.01µF,

SVIN = VIN = 12V, VOUT = 1.5V, COUT = 3× 100µF Ceramic

∆VOUTLS

Peak Deviation for Dynamic Load

Load: 0% to 25% to 0% of Full Load

SVIN = VIN = 12V, VOUT = 1.5V, COUT = 3× 100µF Ceramic

±50

tSETTLE

Settling Time for Dynamic Load Step Load: 0% to 25% to 0% of Full Load

SVIN = VIN = 12V, VOUT = 1.5V, COUT = 3× 100µF Ceramic

µs

IOUTPK

Output Current Limit

SVIN = VIN = 12V, VOUT = 1.5V

VFB

Voltage at VFB Pin

IOUT = 0A, VOUT = 1.5V

0.594

0.6

0.606

IFB

Current at VFB Pin

(Note 6)

±50

RFB(TOP)

Resistor Between VOUT and VFB Pins

60.05 60.40 60.75

kΩ

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