Datasheet Linear Technology LTC3727AIG-1#PBF — Datenblatt

Hersteller	Linear Technology
Serie	LTC3727A-1
Artikelnummer	LTC3727AIG-1#PBF

Hocheffiziente 2-Phasen-Synchron-Abwärtsschaltregler

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PDF, 341 Kb, Sprache: en, Datei hochgeladen: Sep 22, 2017, Seiten: 32
High Efficiency, 2-Phase Synchronous Step-Down Switching Regulators

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Verpackung

Package	SSOP-28
Package Code	G
Package Index	05-08-1640 (G28)

Parameter

Architecture	Constant Frequency Current Mode
Demo Boards	DC457B
Design Tools	LTspice Model
Export Control	no
Features	PolyPhase, Power Good, PLL, External Synchronization, Burst Mode
Frequency	550 kHz
Frequency Sync Range	250kHz to 550kHz
Integrated Inductor	no
Ishutdown	20 µA
Isupply	0.67 mA
Max Phases	2
Monolithic	no
Number of Outputs	2
Operating Temperature Range	-40 to 85 °C
Output Current	25 A
Output Current 2	25 A
Polyphase	yes
Sense Resistor	Rsense
Switch Current	25 A
Switch Current 2	25 A
Synchronous	yes
Topology	Buck
Topology 1	Buck
Topology 2	Buck
Vin Max	36 V
Vin Min	4 V
Vout Max	14 V
Vout Maximum	14V
Vout Min	0.8 V
Vout Min 2	.8 V
Vref Accuracy Over Temp	1 %

Öko-Plan

RoHS

Compliant

Konstruktionshinweise

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Active Voltage Positioning Reduces Output Capacitors &mdash Design Solutions 10
PDF, 130 Kb, Datei veröffentlicht: Nov 1, 1999
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Design Solutions 10
November 1999
Active Voltage Positioning Reduces Output Capacitors
by Robert Sheehan
INTRODUCTION
Power supply performance, especially transient response,
is key to meeting todayвЂ™s demands for low voltage, high
current microprocessor power. In an effort to minimize
the voltage deviation during a load step, a technique that
has recently been coined вЂњactive voltage positioningвЂќ is
generating substantial interest and gaining popularity in
the portable computer market. The benefits include lower
peak-to-peak output voltage deviation for a given load
step, without having to increase the output filter capacitance. Alternatively, the output filter capacitance can be
reduced while maintaining the same peak-to-peak transient response.
BASIC PRINCIPLE
The term вЂњactive voltage positioningвЂќ (AVP) refers to
setting the power supply output voltage at a point that is
dependent on the load current. At minimum load, the
output voltage is set to a slightly higher than nominal level.
At full load, the output voltage is set to a slightly lower than
nominal level. Effectively, the DC load regulation is
degraded, but the load transient voltage deviation will be …

Modellreihe

Serie: LTC3727A-1 (4)

LTC3727AEG-1#PBF LTC3727AEG-1#TRPBF LTC3727AIG-1#PBF LTC3727AIG-1#TRPBF

Herstellerklassifikation

Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers | Multiple Output Buck

Andere Namen:

LTC3727AIG-1PBF, LTC3727AIG-1 PBF, LTC3727AIG1#PBF, LTC3727AIG 1#PBF

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