Datasheet Linear Technology LTM8028 — 数据表

制造商	Linear Technology
系列	LTM8028

36VIN，超快速，低输出噪声5A µModule（电源模块）稳压器

数据表

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PDF, 367 Kb, 语言: en, 文件上传: Sep 25, 2017, 页数: 24
36VIN, UltraFast, Low Output Noise 5A µModule Regulator

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	LTM8028EY#PBF	LTM8028IY	LTM8028IY#PBF	LTM8028MPY	LTM8028MPY#PBF
N	1	2	3	4	5
Package	15mm x 15mm x 4.92mm BGA 包装外形图	15mm x 15mm x 4.92mm BGA 包装外形图	15mm x 15mm x 4.92mm BGA 包装外形图	15mm x 15mm x 4.92mm BGA 包装外形图	15mm x 15mm x 4.92mm BGA 包装外形图
Package Code	BGA	BGA	BGA	BGA	BGA
Package Index	05-08-1894	05-08-1894	05-08-1894	05-08-1894	05-08-1894
Pin Count	114	114	114	114	114

参数化

Parameters / Models	LTM8028EY#PBF	LTM8028IY	LTM8028IY#PBF	LTM8028MPY	LTM8028MPY#PBF
Architecture	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC1738A	DC1738A	DC1738A	DC1738A	DC1738A
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Export Control	no	no	no	no	no
Features	Low EMI, LDO Post Regulator, Pin Selectable Output Voltage, External Synchronization, Resistor Set Frequency	Low EMI, LDO Post Regulator, Pin Selectable Output Voltage, External Synchronization, Resistor Set Frequency	Low EMI, LDO Post Regulator, Pin Selectable Output Voltage, External Synchronization, Resistor Set Frequency	Low EMI, LDO Post Regulator, Pin Selectable Output Voltage, External Synchronization, Resistor Set Frequency	Low EMI, LDO Post Regulator, Pin Selectable Output Voltage, External Synchronization, Resistor Set Frequency
Frequency, kHz	1000	1000	1000	1000	1000
Frequency Adjust Range	200kHz - 1MHz	200kHz - 1MHz	200kHz - 1MHz	200kHz - 1MHz	200kHz - 1MHz
Frequency Sync Range	200kHz - 1MHz	200kHz - 1MHz	200kHz - 1MHz	200kHz - 1MHz	200kHz - 1MHz
Integrated Inductor	yes	yes	yes	yes	yes
Ishutdown, µA	1	1	1	1	1
Isupply, mA	35	35	35	35	35
Max Phases	1	1	1	1	1
Monolithic	yes	yes	yes	yes	yes
Number of Outputs	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	-40 to 85	-40 to 85	-55 to 125	-55 to 125
Output Current, A	5	5	5	5	5
Polyphase	no	no	no	no	no
Switch Current, A	8	8	8	8	8
Synchronous	no	no	no	no	no
Topology	Buck	Buck	Buck	Buck	Buck
Topology 1	Buck	Buck	Buck	Buck	Buck
Vin Max, V	36	36	36	36	36
Vin Min, V	6	6	6	6	6
Vout Max, V	1.8	1.8	1.8	1.8	1.8
Vout Maximum	1.8V	1.8V	1.8V	1.8V	1.8V
Vout Min, V	0.8	0.8	0.8	0.8	0.8

生态计划

	LTM8028EY#PBF	LTM8028IY	LTM8028IY#PBF	LTM8028MPY	LTM8028MPY#PBF
RoHS	Compliant	Not Compliant	Compliant	Not Compliant	Compliant

设计须知

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36V Input, Low Output Noise, 5A ОјModule Regulator for Precision Data Acquisition Systems &mdash DN518
PDF, 769 Kb, 档案已发布: Aug 9, 2013
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advertisement 36V Input, Low Output Noise, 5A ВµModule Regulator for
Precision Data Acquisition Systems вЂ“ Design Note 518
Jaino Parasseril
Introduction
Low output noise, fast transient response and high
efficiency are just a few of the stringent power supply
demands made by applications featuring high data rate
FPGA I/O channels and high bit count data converters.
The power supply designer faces the difficult task of
meeting all of these requirements with as few components as possible, since no single topology easily
meets all three.
For instance, high performance linear regulators
achieve the required low output noise and fast transient response, but tend to dissipate more power than
a switching topology, resulting in thermal issues.
Switching regulators, on the other hand, are generally
more efficient and run cooler than linear regulators,
but generate significantly more output noise and cannot respond as quickly to transients. Power supply
designers often resort to combining the two topologies,
using a switching regulator to efficiently step down a
relatively high bus voltage, followed by a linear post
regulator to produce a low noise output. Although it is
possible to produce a low noise supply in this way, it
requires careful design to achieve high efficiency and …

文章

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High Efficiency Switching Power Conversion Combined with Low Noise Linear Regulation in µModule Package &mdash LT Journal
PDF, 2.8 Mb, 档案已发布: Jul 9, 2013
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High Efficiency Switching Power Conversion Combined with
Low Noise Linear Regulation in ВµModule Package
David Ng Devices with high speed
or high resolution functions
require clean power.
Switching regulators offer
efficiency across a variety
of input/output conditions,
but the typical switcher is
hard pressed to deliver the
clean, low output noise
and fast transient response
needed by high data rate
FPGA I/O channels or high
bit count data converters. In
contrast, high performance
linear regulators feature
low output noise and fast
transient response, but
can quickly heat up. Figure 2. In a 12V input to 1.2V output, 5A
application, the LTM8028 dissipates less than 4W
and heats up by only 45В°C. POWER LOSS (W) 4 40 3 30
TEMP RISE 2 20 POWER LOSS 1 0 10 0 1 LTM8028 VIN …

模型线

系列: LTM8028 (5)

LTM8028EY#PBF LTM8028IY LTM8028IY#PBF LTM8028MPY LTM8028MPY#PBF

制造商分类

Power Management > Switching Regulator > Ultralow Noise Regulators
µModule Solutions > µModule Regulators > µModule Buck Regulators | Extended Temperature (H & MP) µModule Regulators