Datasheet Linear Technology LT3070MPUFD — 数据表

制造商	Linear Technology
系列	LT3070
零件号	LT3070MPUFD

5A，低噪声，可编程输出，85mV压差线性稳压器

数据表

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PDF, 853 Kb, 语言: en, 文件上传: Sep 2, 2017, 页数: 30
5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator

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价格

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Package	4x5 QFN-28
Package Code	UFD
Package Index	05-08-1712

参数化

Demo Boards	DC1433A
Design Tools	LTspice File
Discrete Pass Element	no
Dropout Voltage	0.085 V
Export Control	no
Features	Digitally Programmable, Marginning, Separate Bias Pin, Power Good
Isupply	1 mA
Max Junction Temp	125 Deg
Number of Outputs	1
Operating Temperature Range	-55 to 125 °C
Output Current	5 A
Output Voltage	Adj
PSRR	72 dB
RMS Noise	25 µV
Theta JA	35В°C/W (UFD)
Type	NMOS
Vin Max	3 V
Vin Min	0.95 V
Vout Max	1.8 V
Vout Min	0.8 V

生态计划

RoHS	Not Compliant

文章

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Ultrafast, Low Noise, Low Dropout Linear Regulators Running in Parallel Produce Clean, Efficient, High Current Point-of-Load Power for FPGA and Server Backplanes &mdash LT Journal
PDF, 1.3 Mb, 档案已发布: Jun 30, 2010
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Ultrafast, Low Noise, Low Dropout Linear Regulators
Running in Parallel Produce Clean, Efficient, High Current
Point-of-Load Power for FPGA and Server Backplanes
Kelly Consoer The latest FPGAs and processors have migrated to deep submicron geometries with
gigahertz+ data rates and integrated telemetry channels that operate from 0.9V to 1.8V
supply rails. The transient power demand for these processors can reach more than
10A peak current in nanoseconds. At these processor speeds and high currents even
the local PCB backplane impedances around the processor can contribute to supply
droop, where millivolts of supply droop or supply noise can degrade data integrity.
To manage the system power distribution,
switching regulators may be used locally
to downconvert from a higher voltage
rail. These regulators are traditionally
bypassed with a large quantity of bulk
caps to reduce ripple and buffer the load transients. Unfortunately, bulk tantalum
and electrolytic caps have parasitic ESL and
ESR that limits their ability to bypass
fast high current load transients. To a
lesser extent, even large ceramic caps are
bandwidth limited by their inherent ESL. The LT3070 and LT3071 family of
UltraFastв„ў transient response, low noise,
low dropout linear regulators addresses
this challenge. The high bandwidths of …

模型线

系列: LT3070 (8)

LT3070EUFD#PBF LT3070EUFD#TRPBF LT3070IUFD#PBF LT3070IUFD#TRPBF LT3070MPUFD LT3070MPUFD#PBF LT3070MPUFD#TR LT3070MPUFD#TRPBF

制造商分类

Power Management > LDO Linear Regulators > Positive Linear Regulators (LDO) | LDO Plus | Extended Temperature (H & MP) Linear Regulators