Datasheet Linear Technology LTC3738 — Datenblatt

Hersteller	Linear Technology
Serie	LTC3738

3-Phasen-Buck-Controller für Intel VRM9 / VRM10 mit aktiver Spannungspositionierung

Datenblätter

PDF, 328 Kb, Datei hochgeladen: Sep 23, 2017

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Preise

Verpackung

	LTC3738CUHF#PBF	LTC3738CUHF#TRPBF
N	1	2
Package	5x7 QFN-38 Paketumrisszeichnung	5x7 QFN-38 Paketumrisszeichnung
Package Code	UHF	UHF
Package Index	05-08-1701	05-08-1701
Pin Count	38	38

Parameter

Parameters / Models	LTC3738CUHF#PBF	LTC3738CUHF#TRPBF
Demo Boards	DC721A-A,DC721A-B	DC721A-A,DC721A-B
Export Control	no	no
Features	VID, PolyPhase, Active Voltage Positioning, External Synchronization, Power Good, Selectable Switching Frequency	VID, PolyPhase, Active Voltage Positioning, External Synchronization, Power Good, Selectable Switching Frequency
Frequency, kHz	550	550
Frequency Adjust Range	220kHz, 365kHz, 550kHz	220kHz, 365kHz, 550kHz
Frequency Sync Range	210kHz - 530kHz	210kHz - 530kHz
Integrated Inductor	no	no
Ishutdown, µA	20	20
Isupply, mA	2.5	2.5
Max Phases	3	3
Monolithic	no	no
Number of Outputs	1	1
Operating Temperature Range, °C	0 to 70	0 to 70
Output Current, A	60	60
Polyphase	yes	yes
Switch Current, A	60	60
Synchronous	yes	yes
Topology	Buck	Buck
Vin Max, V	36	36
Vin Min, V	3.8	3.8
Vout Max, V	1.6	1.6
Vout Min, V	0.8375	0.8375

Öko-Plan

	LTC3738CUHF#PBF	LTC3738CUHF#TRPBF
RoHS	Compliant	Compliant

Artikel

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3-Phase Buck Controller for Intel VRM9/VRM10 with Active Voltage Positioning &mdash LT Journal
PDF, 169 Kb, Datei veröffentlicht: Mar 25, 2005
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DESIGN IDEAS 3-Phase Buck Controller
for Intel VRM9/VRM10 with
Active Voltage Positioning
Introduction Accurate Load Line Control Each new generation of CPUs demands
more from power supplies than the
last: more power, tighter voltage regulation and faster transient response.
Meeting all of the new requirements is a
difп¬Ѓcult proposition, but the LTC3738
helps power supply designers do just
that. It is a 3-phase buck controller
with active voltage positioning speciп¬Ѓcally designed for Intel VRM9 and
VRM10 (Figure 1). crucial. The current mode architecture
of the LTC3738 evenly distributes
the load, and thus thermal stress,
across the channels. This improves
the thermal performance and reliability of the entire power solution.
The LTC3738 also includes a thermal
detector that generates a VR_HOTB
warning signal when chip itself gets
hot (around 120В°C) plus a self-protect
thermal detector that shuts down the
device when chip becomes extremely
hot and endangers the safety of the …

Modellreihe

Serie: LTC3738 (2)

LTC3738CUHF#PBF LTC3738CUHF#TRPBF

Herstellerklassifikation

Power Management > Switching Regulator > Digitally Programmable Regulators

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