LTC3887EUJ#PBF datasheet, PDF - EEWORLD Datasheet

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LTC3887EUJ#PBF: DescriptionDC/DC Cntrlr Dual-OUT Step Down 1000kHz 40-Pin QFN EP Tube; CategoryPower/power management The power supply circuit; File Size2MB，116 Pages; ManufacturerADI; Websitehttps://www.analog.com; Environmental Compliance

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LTC3887EUJ#PBF Overview

DC/DC Cntrlr Dual-OUT Step Down 1000kHz 40-Pin QFN EP Tube

LTC3887EUJ#PBF Parametric

Parameter Name	Attribute value
Brand Name	Analog Devices Inc
Is it lead-free?	Contains lead
Is it Rohs certified?	conform to
Maker	ADI
package instruction	HVQCCN, LCC40,.24SQ,20
Contacts	40
Manufacturer packaging code	05-08-1728
Reach Compliance Code	compliant
Other features	SEATED HT-CALCULATED
Analog Integrated Circuits - Other Types	SWITCHING CONTROLLER
control mode	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION
Maximum input voltage	24 V
Minimum input voltage	4.5 V
Nominal input voltage	12 V
JESD-30 code	S-PQCC-N40
JESD-609 code	e3
length	6 mm
Number of functions	2
Number of terminals	40
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
Maximum output voltage	5.5 V
Minimum output voltage	0.5 V
Package body material	PLASTIC/EPOXY
encapsulated code	HVQCCN
Encapsulate equivalent code	LCC40,.24SQ,20
Package shape	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Maximum seat height	0.8 mm
surface mount	YES
Switch configuration	BUCK
technology	CMOS
Temperature level	AUTOMOTIVE
Terminal surface	Matte Tin (Sn)
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
width	6 mm
Base Number Matches	1

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LTC3887/LTC3887-1/

LTC3887-2

Dual Output PolyPhase Step-Down DC/DC Controller

with Digital Power System Management

FEATURES

DESCRIPTION

PMBus/I

C Compliant Serial Interface

Telemetry Read Back includes V , I , V

IN IN OUT

, I

OUT

Temperature, Duty Cycle and Faults

Programmable Voltage, Current Limit, Digital

Soft-Start/Stop, Sequencing, Margining, OV/UV

and Frequency Synchronization (250kHz to 1MHz)

±0.5% Output Voltage Accuracy Over Temperature

Integrated 16-Bit ADC

OUT

Range: 0.5V to 5.5V (V

OUT0

, V

OUT1

)

Internal EEPROM and Fault Logging with ECC

Integrated N-Channel MOSFET Gate Drivers (LTC3887)

Minimum On-Time 45ns

Wide V

Range: 4.5V to 24V

Analog Current Mode Control Loop

Remote Differential Sense for PolyPhase

Applications

Accurate PolyPhase Current Sharing for Up to Six Phases

Available in a 40-Pin (6mm

6mm) QFN Package

AEC-Q100 Qualified for Automotive Applications

High Current Distributed Power Systems

Telecom, Datacom and Storage Systems

Intelligent Energy Efficient Power Regulation

The

LTC

3887/LTC3887-1/LTC3887-2

are dual,

PolyPhase DC/DC synchronous step-down switching

regulator controllers with an I

C-based

PMBus compli-

ant serial interface.

The controllers use a constant fre-

quency, current mode architecture that is supported by

LTpowerPlay

a software development tool with graphical

user interface (GUI).

Switching frequency, channel phasing, output voltage,

and device address can be programmed using external

configuration resistors. Additionally, parameters can be

set via the digital interface or stored in EEPROM. Voltage,

current, internal/external temperature and fault status can

be read back through the bus interface.

The LTC3887 has integrated gate drivers. The LTC3887-1

has three-state PWM pins to drive DrMOS power stages.

The LTC3887-2 has gate drivers and no LDO and supports

up to 34V. The LTC3887 is an enhanced version of

the LTC3880 with greater output voltage range and more

digital features. Refer to Operation section for more detail.

All registered trademarks and trademarks are the property of their respective owners. Protected

by U.S. Patents including 5481178, 5705919, 5929620, 6144194, 6177787, 6580258, 5408150,

7420359. Licensed under U.S. Patent 7000125 and other related patents worldwide.

APPLICATIONS

TYPICAL APPLICATION

Dual 350kHz 3.3V/0.5V Step-Down Converter

6V TO 16V

10µF

0.1µF

OUT0

0.5V

20A

0.56µH

1.58k

0.22µF

TG0

INTV

TG1

0.1µF

1µH

0.22µF

OUT1

3.3V

20A

1µF

0.5

0.4

0.3

OUT

ERROR (%)

0.2

0.1

–0.1

–0.2

–0.3

Regulated Output Voltage vs

Temperature, V

OUT

= 0.5V

LTC3887

BOOST0

SW0

BG0

SENSEO+

SENSEO–

SENSEO+

SENSEO–

TSNS0

10nF

2200pF

4.99k

BOOST1

SW1

BG1

SENSE1+

SENSE1–

SENSE1

TSNS1

2200pF

10nF

6.04k

530µF

–0.4

–0.5

–50 –30 –10 10 30 50 70

TEMPERATURE (°C)

110

THO

SDA

SCL

ALERT

RUN0

RUN1

TH1

GPIO0

GPIO1

DD33

DD25

*SOME DETAILS OMITTED

FOR CLARITY

PMBus

INTERFACE

FAULT MANAGEMENT

3887 TA01b

TO/FROM

OTHER LTC DEVICES

WRITE PROTECT

SHARE_CLK

SYNC

GND

1µF

3887 TA01a

Document Feedback

For more information

www.analog.com

Rev. F

LTC3887EUJ#PBF Related Products

	LTC3887EUJ#PBF	LTC3887EUJ#TRPBF	LTC3887EUJ-1#PBF	LTC3887EUJ-1#TRPBF	LTC3887EUJ-2#PBF	LTC3887EUJ-2#TRPBF	LTC3887IUJ#PBF	LTC3887IUJ#TRPBF
Description	DC/DC Cntrlr Dual-OUT Step Down 1000kHz 40-Pin QFN EP Tube	DC/DC Cntrlr Dual-OUT Step Down 1000kHz 40-Pin QFN EP T/R	DC/DC Cntrlr Dual-OUT Step Down 1000kHz 40-Pin QFN EP Tube	DC/DC Cntrlr Dual-OUT Step Down 1000kHz 40-Pin QFN EP T/R	DC/DC Cntrlr Dual-OUT Step Down 1000kHz 40-Pin QFN EP Tube	DC/DC Cntrlr Dual-OUT Step Down 1000kHz 40-Pin QFN EP T/R	DC/DC Cntrlr Dual-OUT Step Down 1000kHz 40-Pin QFN EP Tube	DC/DC Cntrlr Dual-OUT Step Down 1000kHz 40-Pin QFN EP T/R
Brand Name	Analog Devices Inc	Analog Devices Inc	Analog Devices Inc	Analog Devices Inc	Analog Devices Inc	Analog Devices Inc	Analog Devices Inc	Analog Devices Inc
Is it lead-free?	Contains lead	Contains lead	Contains lead	Contains lead	Contains lead	Contains lead	Contains lead	Contains lead
Is it Rohs certified?	conform to	conform to	conform to	conform to	conform to	conform to	conform to	conform to
Maker	ADI	ADI	ADI	ADI	ADI	ADI	ADI	ADI
package instruction	HVQCCN, LCC40,.24SQ,20	HVQCCN, LCC40,.24SQ,20	HVQCCN, LCC40,.24SQ,20	HVQCCN, LCC40,.24SQ,20	HVQCCN, LCC40,.24SQ,20	HVQCCN, LCC40,.24SQ,20	HVQCCN, LCC40,.24SQ,20	HVQCCN, LCC40,.24SQ,20
Contacts	40	40	40	40	40	40	40	40
Manufacturer packaging code	05-08-1728	05-08-1728	05-08-1728	05-08-1728	05-08-1728	05-08-1728	05-08-1728	05-08-1728
Reach Compliance Code	compliant	compliant	compliant	compliant	compliant	compliant	compliant	compliant
Other features	SEATED HT-CALCULATED	SEATED HT-CALCULATED	SEATED HT-CALCULATED	SEATED HT-CALCULATED	SEATED HT-CALCULATED	SEATED HT-CALCULATED	SEATED HT-CALCULATED	SEATED HT-CALCULATED
Analog Integrated Circuits - Other Types	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER
control mode	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION
Maximum input voltage	24 V	24 V	24 V	24 V	34 V	34 V	24 V	24 V
Minimum input voltage	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V
Nominal input voltage	12 V	12 V	12 V	12 V	12 V	12 V	12 V	12 V
JESD-30 code	S-PQCC-N40	S-PQCC-N40	S-PQCC-N40	S-PQCC-N40	S-PQCC-N40	S-PQCC-N40	S-PQCC-N40	S-PQCC-N40
length	6 mm	6 mm	6 mm	6 mm	6 mm	6 mm	6 mm	6 mm
Number of functions	2	2	2	2	2	2	2	2
Number of terminals	40	40	40	40	40	40	40	40
Maximum operating temperature	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
Maximum output voltage	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Minimum output voltage	0.5 V	0.5 V	0.5 V	0.5 V	0.5 V	0.5 V	0.5 V	0.5 V
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	HVQCCN	HVQCCN	HVQCCN	HVQCCN	HVQCCN	HVQCCN	HVQCCN	HVQCCN
Encapsulate equivalent code	LCC40,.24SQ,20	LCC40,.24SQ,20	LCC40,.24SQ,20	LCC40,.24SQ,20	LCC40,.24SQ,20	LCC40,.24SQ,20	LCC40,.24SQ,20	LCC40,.24SQ,20
Package shape	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
Maximum seat height	0.8 mm	0.8 mm	0.8 mm	0.8 mm	0.8 mm	0.8 mm	0.8 mm	0.8 mm
surface mount	YES	YES	YES	YES	YES	YES	YES	YES
Switch configuration	BUCK	BUCK	BUCK	BUCK	BUCK	BUCK	BUCK	BUCK
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE
Terminal form	NO LEAD	NO LEAD	NO LEAD	NO LEAD	NO LEAD	NO LEAD	NO LEAD	NO LEAD
Terminal pitch	0.5 mm	0.5 mm	0.5 mm	0.5 mm	0.5 mm	0.5 mm	0.5 mm	0.5 mm
Terminal location	QUAD	QUAD	QUAD	QUAD	QUAD	QUAD	QUAD	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
width	6 mm	6 mm	6 mm	6 mm	6 mm	6 mm	6 mm	6 mm
JESD-609 code	e3	e3	e3	e3	-	-	e3	e3
Terminal surface	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	-	-	Matte Tin (Sn)	Matte Tin (Sn)
Base Number Matches	1	1	1	-	1	-	1	1

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