Datasheet Linear Technology LTC3728LEGN-1#PBF — 数据表

制造商	Linear Technology
系列	LTC3728L-1
零件号	LTC3728LEGN-1#PBF

双路550kHz 2相同步调节器

数据表

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PDF, 487 Kb, 语言: en, 文件上传: Sep 22, 2017, 页数: 32
Dual, 550kHz, 2-Phase Synchronous Regulator

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Package	SSOP-28
Package Code	GN
Package Index	05-08-1641 (GN28)

参数化

Design Tools	LTspice Model
Export Control	no
Features	PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start
Frequency	550 kHz
Frequency Sync Range	250kHz - 550kHz
Ishutdown	20 µA
Isupply	0.45 mA
Monolithic	no
Number of Outputs	2
Operating Temperature Range	0 to 85 °C
Output Current	25 A
Output Current 2	25 A
Polyphase	yes
Switch Current	25 A
Synchronous	yes
Topology	Buck
Vin Max	28 V
Vin Min	4.5 V
Vout Max	7 V
Vout Maximum	7V
Vout Min	0.8 V

生态计划

RoHS

Compliant

设计须知

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Active Voltage Positioning Reduces Output Capacitors &mdash Design Solutions 10
PDF, 130 Kb, 档案已发布: 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 …

模型线

系列: LTC3728L-1 (7)

LTC3728LEGN-1#PBF LTC3728LEGN-1#TRPBF LTC3728LEUH-1#PBF LTC3728LEUH-1#TRPBF LTC3728LIGN-1#PBF LTC3728LIGN-1#TRPBF LTC3728LIUH-1#TRPBF

制造商分类

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

其他名称:

LTC3728LEGN-1PBF, LTC3728LEGN-1 PBF, LTC3728LEGN1#PBF, LTC3728LEGN 1#PBF

相关刊物

数据表 Datasheet Linear Technology LTC3728L

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