Datasheet Linear Technology LTC3626IUDC#PBF — 数据表

制造商	Linear Technology
系列	LTC3626
零件号	LTC3626IUDC#PBF

具有电流和温度监控功能的20V，2.5A同步单片降压型稳压器

数据表

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PDF, 398 Kb, 语言: en, 文件上传: Sep 22, 2017, 页数: 28
20V, 2.5A Synchronous Monolithic Step-Down Regulator with Current and Temperature Monitoring

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Package	3x4 QFN-20
Package Code	UDC
Package Index	05-08-1742

参数化

Architecture	Constant Frequency Controlled On-Time Current Mode
Demo Boards	DC1768A
Design Tools	LTspice File,LTpowerCAD File
Export Control	no
Features	Programmable Input Current Limit, Temperature Monitor, External Synchronization, Resistor Set Frequency, Tracking, Burst Mode, Power Good
Frequency	3000 kHz
Frequency Adjust Range	500kHz - 3MHz
Frequency Sync Range	500kHz - 3MHz
Integrated Inductor	no
Ishutdown	13 µA
Isupply	0.9 mA
Max Phases	1
Monolithic	yes
Number of Outputs	1
Operating Temperature Range	-40 to 85 °C
Output Current	2.5 A
Polyphase	no
Switch Current	2.9 A
Synchronous	yes
Topology	Buck
Vin Max	20 V
Vin Min	3.6 V
Vout Max	6 V
Vout Maximum	6V
Vout Min	0.6 V

生态计划

RoHS

Compliant

设计须知

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20V, 2.5A Monolithic Synchronous Buck SWITCHER+ with Input Current, Output Current and Temperature Sensing/ Limiting Capabilities &mdash DN511
PDF, 467 Kb, 档案已发布: Dec 19, 2012
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20V, 2.5A Monolithic Synchronous Buck SWITCHER+ with
Input Current, Output Current and Temperature Sensing/
Limiting Capabilities
Design Note 511
Tom Gross
Introduction
The LTC В®3626 synchronous buck regulator with
current and temperature monitoring is the first of
LinearвЂ™s SWITCHER+в„ў line of monolithic regulators. It is a high efficiency, monolithic synchronous
step-down switching regulator capable of delivering
a maximum output current of 2.5A from an input
voltage ranging from 3.6V to 20V (circuit shown in
Figure 1). The LTC3626 employs a unique controlled
on-time/constant-frequency, current-mode architecture, making it ideal for low duty cycle applications
and high frequency operation, while yielding fast
response to load transients (see Figure 2). It also
features mode setting, tracking and synchronization
capabilities. The LTC3626вЂ™s 3mm Г— 4mm package
has such low thermal impedance that it can operate
without an external heat sink even while delivering
maximum power to the load. VIN
3.6V TO 20V C2
47ВµF …

文章

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20V, 2.5A Synchronous Monolithic Buck with Current and Temperature Monitoring &mdash LT Journal
PDF, 2.4 Mb, 档案已发布: Jan 17, 2013
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20V, 2.5A Synchronous Monolithic Buck with
Current and Temperature Monitoring
K. Bassett The LTC3626 integrates a number of easyto-use, but powerful, features that would
normally require additional ICs and design
time to implement. Specifically, with the
addition of just a couple of passive components, the LTC3626 can be configured to
provide accurate measures of its output
current, input current, and on-die temperature. It can be just as easily programmed
to limit each measured parameter.
These built-in features expand the
designerвЂ™s insight into the performance
of the system and increase the level of
control with remarkably little extra
design investment. Additionally, optional
internal loop compensation is available to minimize the design effort. 32 | January 2013 : LT Journal of Analog Innovation The LTC3626 also includes userselectable Burst Mode operation or
forced-continuous mode, resistorprogrammable switching frequencies
from 500kHz to 3MHz, power good
status output, output tracking capability, and external clock synchronization.
CURRENT MONITOR AND LIMIT One way to measure the overall performance of a system is to is to monitor the
current at the output of the power supply.
Supply current monitoring also informs
designers if downsteam ICs are operating as expectedвЂ”useful in design and
debug, and during normal operation. …

模型线

系列: LTC3626 (4)

LTC3626EUDC#PBF LTC3626EUDC#TRPBF LTC3626IUDC#PBF LTC3626IUDC#TRPBF

制造商分类

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Internal Power Switch Buck

其他名称:

LTC3626IUDCPBF, LTC3626IUDC PBF