Datasheet Linear Technology LTM8025 — Datenblatt

Hersteller	Linear Technology
Serie	LTM8025

36V, 3A Step-Down µModule (Power Module) Konverter

Datenblätter

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PDF, 375 Kb, Datei hochgeladen: Sep 25, 2017

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Preise

Verpackung

	LTM8025EV#PBF	LTM8025EY#PBF	LTM8025IV#PBF	LTM8025IY	LTM8025IY#PBF	LTM8025MPV#PBF	LTM8025MPY	LTM8025MPY#PBF
N	1	2	3	4	5	6	7	8
Package	15mm × 9mm × 4.32mm LGA Paketumrisszeichnung	15mm x 9mm x 4.92mm BGA Paketumrisszeichnung	15mm × 9mm × 4.32mm LGA Paketumrisszeichnung	15mm x 9mm x 4.92mm BGA Paketumrisszeichnung	15mm x 9mm x 4.92mm BGA Paketumrisszeichnung	15mm × 9mm × 4.32mm LGA Paketumrisszeichnung	15mm x 9mm x 4.92mm BGA Paketumrisszeichnung	15mm x 9mm x 4.92mm BGA Paketumrisszeichnung
Package Code	LGA	BGA	LGA	BGA	BGA	LGA	BGA	BGA
Package Index	05-08-1817	05-08-1918	05-08-1817	05-08-1918	05-08-1918	05-08-1817	05-08-1918	05-08-1918
Pin Count	70	70	70	70	70	70	70	70

Parameter

Parameters / Models	LTM8025EV#PBF	LTM8025EY#PBF	LTM8025IV#PBF	LTM8025IY	LTM8025IY#PBF	LTM8025MPV#PBF	LTM8025MPY	LTM8025MPY#PBF
Architecture	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC1379B	DC1379B	DC1379B	DC1379B	DC1379B	DC1379B	DC1379B	DC1379B
Design Tools	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model
Export Control	no	no	no	no	no	no	no	no
Features	Resistor Set Frequency, External Synchronization, PolyPhase	Resistor Set Frequency, External Synchronization, PolyPhase	Resistor Set Frequency, External Synchronization, PolyPhase	Resistor Set Frequency, External Synchronization, PolyPhase	Resistor Set Frequency, External Synchronization, PolyPhase	Resistor Set Frequency, External Synchronization, PolyPhase	Resistor Set Frequency, External Synchronization, PolyPhase	Resistor Set Frequency, External Synchronization, PolyPhase
Frequency, kHz	2400	2400	2400	2400	2400	2400	2400	2400
Frequency Adjust Range	200kHz - 2.4MHz	200kHz - 2.4MHz	200kHz - 2.4MHz	200kHz - 2.4MHz	200kHz - 2.4MHz	200kHz - 2.4MHz	200kHz - 2.4MHz	200kHz - 2.4MHz
Frequency Sync Range	250kHz - 2MHz	250kHz - 2MHz	250kHz - 2MHz	250kHz - 2MHz	250kHz - 2MHz	250kHz - 2MHz	250kHz - 2MHz	250kHz - 2MHz
Integrated Inductor	yes	yes	yes	yes	yes	yes	yes	yes
Ishutdown, µA	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01
Isupply, mA	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025
Max Phases	2	2	2	2	2	2	2	2
Monolithic	yes	yes	yes	yes	yes	yes	yes	yes
Number of Outputs	1	1	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	-40 to 85	-40 to 85	-40 to 85	-55 to 125	-55 to 125	-55 to 125
Output Current, A	3	3	3	3	3	3	3	3
Polyphase	yes	yes	yes	yes	yes	yes	yes	yes
Switch Current, A	5	5	5	5	5	5	5	5
Synchronous	no	no	no	no	no	no	no	no
Topology	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Topology 1	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Vin Max, V	36	36	36	36	36	36	36	36
Vin Min, V	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6
Vout Max, V	24	24	24	24	24	24	24	24
Vout Maximum	24V	24V	24V	24V	24V	24V	24V	24V
Vout Min, V	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8

Öko-Plan

	LTM8025EV#PBF	LTM8025EY#PBF	LTM8025IV#PBF	LTM8025IY	LTM8025IY#PBF	LTM8025MPV#PBF	LTM8025MPY	LTM8025MPY#PBF
RoHS	Compliant	Compliant	Compliant	Not Compliant	Compliant	Compliant	Not Compliant	Compliant

Konstruktionshinweise

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How to Produce Negative Output Voltages from Positive Inputs Using a uModule Step-Down Regulator &mdash DN1021
PDF, 120 Kb, Datei veröffentlicht: May 24, 2011
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How to Produce Negative Output Voltages from Positive Inputs
Using a ВµModule Step-Down Regulator
Design Note 1021
Jaino Parasseril
Introduction
Linear TechnologyвЂ™s DC/DC step-down ОјModule В®
regulators are complete switchmode power supplies in a
surface-mount package. They include the DC/DC controller, inductor, power switches and supporting circuitry.
These highly integrated regulators also provide an easy
solution for applications that require negative output
voltages. In other words, these products can operate as
inverting buck-boost regulators. As a result, the lowest
potential in the circuit is not the standard 0V, but вЂ“VOUT,
which must be tied to the ОјModule regulatorвЂ™s GND. All
signals are now referred to вЂ“VOUT.
For this discussion, the LTMВ®8025 (36V, 3A) is used to
demonstrate how a buck ОјModule regulator can be altered
to produce a negative output voltage with level-shifting
circuitry for synchronization. This approach can be applied to other ОјModule regulators, such as the LTM8022
(36V, 1A), LTM8023 (36V, 2A) and LTM8027 (60V, 4A).
Design Guide
A conventional buck (step-down) ОјModule regulator
can be easily conп¬Ѓgured to generate negative output …

Artikel

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Self-Contained 3A uModule Buck Regulator Produces 0.8V-24V Output from 3.6V-36V Input &mdash LT Journal
PDF, 191 Kb, Datei veröffentlicht: Sep 1, 2009
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LвЂ‰DESIGN IDEAS Self-Contained 3A ВµModule Buck
Regulator Produces 0.8VвЂ“24V Output
by David Ng
from 3.6VвЂ“36V Input
Introduction AUX
GND Ask any group of engineers, вЂњWhat
would you do with a 3A DC/DC converter?вЂќ and you will probably get a
wide range of answersвЂ”from powering
a DSP rail at 1.8V to running a bank
of 24V switching I/O. Typically, these
two particular applications would
require completely different DC/DC
controller ICs and topologies. However, the LTM8025 ВµModule DC/DC
converter can satisfy the requirements
of these and just about any other 3A
applications.
The LTM8025 3A ВµModule DC/DC
buck converter operates from 3.6V to
36V inputs to produce output voltages
as low as 0.8V and as high as 24V.
Furthermore, the LTM8025 features
single cycle Burst ModeВ® operation,
so it is able to handle a wide range …

Modellreihe

Serie: LTM8025 (8)

LTM8025EV#PBF LTM8025EY#PBF LTM8025IV#PBF LTM8025IY LTM8025IY#PBF LTM8025MPV#PBF LTM8025MPY LTM8025MPY#PBF

Herstellerklassifikation

µModule Solutions > µModule Regulators > µModule Buck Regulators | Extended Temperature (H & MP) µModule Regulators