LTM4624 查看數據表（PDF） - Linear Technology

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LTM4624

14VIN, 4A Step-Down DC/DC µModule Regulator

Linear Technology 

LTM4624

Absolute Maximum Ratings

(Note 1)

VIN, SVIN..................................................... –0.3V to 15V

VOUT (Note 4)....................................–0.3V to SVIN or 6V

RUN........................................................... –0.3V to SVIN

INTVCC....................................................... –0.3V to 3.6V

PGOOD, MODE, TRACK/SS, FREQ......... –0.3V to INTVCC

COMP, FB (Note 4)................................. –0.3V to INTVCC

Internal Operating Junction Temperature Range

(Notes 2, 5)............................................. –40°C to 125°C

Storage Temperature Range................... –55°C to 125°C

Peak Solder Reflow Body Temperature.................. 245°C

Pin Configuration

(See Pin Functions, Pin Configuration Table)

TOP VIEW

NC NC SVIN

SGND 5

FREQ 4

RUN

3

NC

TRACK/SS

FB

2

COMP 1

VIN

MODE

INTVCC

GND

PGOOD

VOUT

ABCDE

BGA PACKAGE

25-LEAD (6.25mm × 6.25mm × 5.01mm)

TJMAX = 125°C, θJCtop = 17°C/W, θJCbottom = 11°C/W,

θJB + θBA = 22°C/W, θJA = 22°C/W,

θJA DERIVED FROM 95mm × 76mm PCB WITH 4 LAYERS

θ VALUES DETERMINED PER JESD51-12, WEIGHT = 0.5g

Order Information

PART NUMBER

LTM4624EY#PBF

LTM4624IY#PBF

LTM4624IY

PAD OR BALL FINISH

SAC305 (RoHS)

SAC305 (RoHS)

SnPb (63/37)

PART MARKING*

DEVICE

FINISH CODE

LTM4624Y

e1

LTM4624Y

e1

LTM4624Y

e0

PACKAGE

TYPE

BGA

BGA

BGA

MSL

RATING

3

3

3

TEMPERATURE RANGE

(See Note 2)

–40°C to 125°C

–40°C to 125°C

–40°C to 125°C

Consult Marketing for parts specified with wider operating temperature

ranges. *Device temperature grade is indicated by a label on the shipping

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

• Terminal Finish Part Markings:

www.linear.com/leadfree

• Recommended LGA and BGA PCB Assembly and Manufacturing

Procedures:

www.linear.com/umodule/pcbassembly

• LGA and BGA Package and Tray Drawings:

www.linear.com/packaging

Electrical Characteristics The l denotes the specifications which apply over the full internal

operating temperature range (Note 2), otherwise specifications are at TA = 25°C. VIN = SVIN = 12V per the typical application shown on

the front page.

SYMBOL

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

Switching Regulator Section: per Channel

VIN

Input DC Voltage

SVIN = VIN

l4

14

V

VOUT(RANGE)

Output Voltage Range

l 0.6

5.5

V

VOUT(DC)

Output Voltage, Total

CIN = 22µF, COUT = 100µF Ceramic, RFB = 40.2k,

Variation with Line and Load MODE = INTVCC,VIN = 4V to 14V, IOUT = 0A to 4A (Note 3)

0°C to 125°C

1.477 1.50 1.523

V

–40°C to 125°C

l 1.47 1.50 1.53

V

VRUN

IQ(SVIN)

IS(VIN)

IOUT(DC)

RUN Pin On Threshold

Input Supply Bias Current

Input Supply Current

Output Continuous Current

Range

VRUN Rising

VIN = 12V, VOUT = 1.5V, MODE = INTVCC

VIN = 12V, VOUT = 1.5V, MODE = GND

Shutdown, RUN = 0, VIN = 12V

VIN = 12V, VOUT = 1.5V, IOUT = 4A

VIN = 12V, VOUT = 1.5V

1.1 1.2 1.3

V

6

mA

2

mA

11

µA

0.62

A

0

4

A

4624fc

2

For more information www.linear.com/LTM4624

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