IC manufacturers Analog Devices

IC manufacturers (96)

Analog Devices LTC3887 | Demoboard DC2454A

LTC3887EUJ-1/LTC3870EUF-1 Poly-Phase Step-Down DC/DC Controller with Power System Management

Overview

TopologyBuck Converter
Input voltage7-14 V
Output 11.8 V / 100 A
IC revisionA

Description

Demonstration circuit 2454A is a high current, high efficiency,poly-phase synchronous buck converter featuringthe LTC®3887EUJ-1, a dual-phase current mode controller,and the LTC3870EUF-1, a dual-phase slave controller. TheLTC3887-1 has the PMBus interface and the power systemmanagement functions.The DC2454A uses DrMOS in the power stage and inductorDCR sensing. The input voltage range of this board is from7V to 14V, and the output voltage can be programmedfrom 0.8V to 1.8V. The output current is up to 100A with4-phase operation. The factory default setting for theoutput is 1.0V. This demo board also has an on-boarddynamic load circuit, which makes it easy to evaluate thetransient performances.The DC2454A powers up to default settings and producespower based on configuration resistors or NVM withoutthe need for any serial bus communication. This allowseasy evaluation of the DC/DC converter aspects of the LTC3887-1. To fully explore the extensive power systemmanagement features, download the GUI softwareLTpowerPlay® onto your PC and use LTC’s I2C/SMBus/PMBus Dongle DC1613A to connect to the board.LTpowerPlay allows the user to reconfigure the part on thefly and store the configuration in EEPROM, view telemetryof voltage, current, temperature and fault status.

Products

Order Code Data­sheet Simu­lation Downloads Product seriesL
(mm)
f
(mm)
λDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
L
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
MaterialPinsRowsH
(mm)
GenderTypeIR
(A)
Packaging Samples
150060GS75000SPEC
25 files WL-SMCW SMT Mono-color Chip LED Waterclear 1.6 525 Green 515 430 3.2 InGaN 140 0.7 Tape and Reel
62000311121SPEC
6 files WR-PHD 2.00 mm THT Pin Header 6 3 Single Pin Header Straight 2 Bag
744355215SPEC
8 files WE-HCI SMT Flat Wire High Current Inductor 10.5 0.15 56.4 20 60 0.58 275 WE-PERM 2 4
702936000SPEC
3 files WA-SNSR Self-Retaining Spacer 15.9 4.8 PA66
60800213421SPEC
3 files WR-PHD 2.00 mm Jumper with Test Point 2 Jumper 3 Bag
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesL
(mm)
f
(mm)
λDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
L
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
MaterialPinsRowsH
(mm)
GenderTypeIR
(A)
Packaging Samples