Datasheet Linear Technology LTM4622

Manufacturer	Linear Technology
Series	LTM4622

Dual Ultrathin 2.5A or Single 5A Step-Down DC/DC µModule (Power Module) Regulator

Datasheets

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PDF, 1.7 Mb, Revision: E, File uploaded: Mar 27, 2018

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Packaging

	LTM4622EV#PBF	LTM4622EY#PBF	LTM4622IV#PBF	LTM4622IY	LTM4622IY#PBF
N	1	2	3	4	5
Package	6.25mm x 6.25mm x 1.82mm LGA Package Outline Drawing	6.25mm x 6.25mm x 2.42mm BGA Package Outline Drawing	6.25mm x 6.25mm x 1.82mm LGA Package Outline Drawing	6.25mm x 6.25mm x 2.42mm BGA Package Outline Drawing	6.25mm x 6.25mm x 2.42mm BGA Package Outline Drawing
Package Code	LGA	BGA	LGA	BGA	BGA
Package Index	05-08-1949	05-08-1502	05-08-1949	05-08-1502	05-08-1502
Pin Count	25	25	25	25	25

Parametrics

Parameters / Models	LTM4622EV#PBF	LTM4622EY#PBF	LTM4622IV#PBF	LTM4622IY	LTM4622IY#PBF
Architecture	Controlled On-Time Valley Current Mode	Controlled On-Time Valley Current Mode	Controlled On-Time Valley Current Mode	Controlled On-Time Valley Current Mode	Controlled On-Time Valley Current Mode
Demo Boards	DC2249A	DC2249A	DC2249A	DC2249A	DC2249A
Design Tools	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File
Export Control	no	no	no	no	no
Features	Ultrathin Package, Resistor Set Frequency, External Synchronization, PolyPhase, Burst Mode, Power Good	Ultrathin Package, Resistor Set Frequency, External Synchronization, PolyPhase, Burst Mode, Power Good	Ultrathin Package, Resistor Set Frequency, External Synchronization, PolyPhase, Burst Mode, Power Good	Ultrathin Package, Resistor Set Frequency, External Synchronization, PolyPhase, Burst Mode, Power Good	Ultrathin Package, Resistor Set Frequency, External Synchronization, PolyPhase, Burst Mode, Power Good
Frequency, kHz	1000	1000	1000	1000	1000
Frequency Adjust Range	800kHz to 4MHz	800kHz to 4MHz	800kHz to 4MHz	800kHz to 4MHz	800kHz to 4MHz
Frequency Sync Range	800kHz to 4MHz	800kHz to 4MHz	800kHz to 4MHz	800kHz to 4MHz	800kHz to 4MHz
Integrated Inductor	yes	yes	yes	yes	yes
Ishutdown, µA	45	45	45	45	45
Isupply, mA	11	11	11	11	11
Max Phases	4	4	4	4	4
Monolithic	yes	yes	yes	yes	yes
Number of Outputs	2	2	2	2	2
Operating Temperature Range, °C	0 to 85	0 to 85	-40 to 85	-40 to 85	-40 to 85
Output Current, A	2.5	2.5	2.5	2.5	2.5
Output Current 2, A	2.5	2.5	2.5	2.5	2.5
Polyphase	yes	yes	yes	yes	yes
Switch Current, A	4	4	4	4	4
Switch Current 2, A	4	4	4	4	4
Synchronous	yes	yes	yes	yes	yes
Topology	Buck	Buck	Buck	Buck	Buck
Topology 1	Buck	Buck	Buck	Buck	Buck
Topology 2	Buck	Buck	Buck	Buck	Buck
Vin Max, V	20	20	20	20	20
Vin Min, V	3.1	3.1	3.1	3.1	3.1
Vout Max, V	5.5	5.5	5.5	5.5	5.5
Vout Max 2, V	5.5	5.5	5.5	5.5	5.5
Vout Maximum	5.5V	5.5V	5.5V	5.5V	5.5V
Vout Min, V	0.6	0.6	0.6	0.6	0.6
Vout Min 2, V	0.6	0.6	0.6	0.6	0.6
Vref Accuracy Over Temp, %	1.5	1.5	1.5	1.5	1.5

Eco Plan

	LTM4622EV#PBF	LTM4622EY#PBF	LTM4622IV#PBF	LTM4622IY	LTM4622IY#PBF
RoHS	Compliant	Compliant	Compliant	Not Compliant	Compliant

Design Notes

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Ultrathin Dual 2.5A or Single 5A ОјModule Regulator Fits on the Backside of PCBs, Allowing Space on the Topside for Digital ICs &mdash DN546
PDF, 327 Kb, File published: Nov 23, 2015
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Ultrathin Dual 2.5A or Single 5A ВµModule Regulator Fits on the
Backside of PCBs, Allowing Space on the Topside for Digital ICs
Design Note 546
Sam Young, Afshin Odabaee
Introduction
The top side of a typical system board, such as a
PCIe card, is densely populated with FPGAs/ASICs/
microprocessors, transceivers, connectors, memory
ICs and DC/DC regulators, while the backside is often
unused. This is a common side effect of the significant
difference in top vs back side height restrictions,
where board specifications may allow topside devices
to reach a few centimeters, but restrict backside
packages to less than 2.3mm. What if functions
usually found on the topside, such as DC/DC regulator
circuits could be thinner and moved to the bottom?
Real estate on top would be available for expanding
memory or enhancing the board/given the additional
top side space. Flexible Dual Supply in a Simple …

Model Line

Series: LTM4622 (5)

LTM4622EV#PBF LTM4622EY#PBF LTM4622IV#PBF LTM4622IY LTM4622IY#PBF

Manufacturer's Classification

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck
µModule Solutions > µModule Regulators > µModule Buck Regulators