Datasheet Linear Technology LT3070 — 数据表

制造商	Linear Technology
系列	LT3070

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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打包

	LT3070EUFD#PBF	LT3070EUFD#TRPBF	LT3070IUFD#PBF	LT3070IUFD#TRPBF	LT3070MPUFD	LT3070MPUFD#PBF	LT3070MPUFD#TR	LT3070MPUFD#TRPBF
N	1	2	3	4	5	6	7	8
Package	4x5 QFN-28 包装外形图	4x5 QFN-28 包装外形图	4x5 QFN-28 包装外形图	4x5 QFN-28 包装外形图	4x5 QFN-28 包装外形图	4x5 QFN-28 包装外形图	4x5 QFN-28 包装外形图	4x5 QFN-28 包装外形图
Package Code	UFD	UFD	UFD	UFD	UFD	UFD	UFD	UFD
Package Index	05-08-1712	05-08-1712	05-08-1712	05-08-1712	05-08-1712	05-08-1712	05-08-1712	05-08-1712
Pin Count	28	28	28	28	28	28	28	28

参数化

Parameters / Models	LT3070EUFD#PBF	LT3070EUFD#TRPBF	LT3070IUFD#PBF	LT3070IUFD#TRPBF	LT3070MPUFD	LT3070MPUFD#PBF	LT3070MPUFD#TR	LT3070MPUFD#TRPBF
Demo Boards	DC1433A	DC1433A	DC1433A	DC1433A	DC1433A	DC1433A	DC1433A	DC1433A
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Discrete Pass Element	no	no	no	no	no	no	no	no
Dropout Voltage, V	0.085	0.085	0.085	0.085	0.085	0.085	0.085	0.085
Export Control	no	no	no	no	no	no	no	no
Features	Digitally Programmable, Marginning, Separate Bias Pin, Power Good	Digitally Programmable, Marginning, Separate Bias Pin, Power Good	Digitally Programmable, Marginning, Separate Bias Pin, Power Good	Digitally Programmable, Marginning, Separate Bias Pin, Power Good	Digitally Programmable, Marginning, Separate Bias Pin, Power Good	Digitally Programmable, Marginning, Separate Bias Pin, Power Good	Digitally Programmable, Marginning, Separate Bias Pin, Power Good	Digitally Programmable, Marginning, Separate Bias Pin, Power Good
Isupply, mA	1	1	1	1	1	1	1	1
Max Junction Temp, Deg	125	125	125	125	125	125	125	125
Number of Outputs	1	1	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	-40 to 85	-40 to 85	-55 to 125	-55 to 125	-55 to 125	-55 to 125
Output Current, A	5	5	5	5	5	5	5	5
Output Voltage	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj
PSRR, dB	72	72	72	72	72	72	72	72
RMS Noise, µV	25	25	25	25	25	25	25	25
Theta JA	35В°C/W (UFD)	35В°C/W (UFD)	35В°C/W (UFD)	35В°C/W (UFD)	35В°C/W (UFD)	35В°C/W (UFD)	35В°C/W (UFD)	35В°C/W (UFD)
Type	NMOS	NMOS	NMOS	NMOS	NMOS	NMOS	NMOS	NMOS
Vin Max, V	3	3	3	3	3	3	3	3
Vin Min, V	0.95	0.95	0.95	0.95	0.95	0.95	0.95	0.95
Vout Max, V	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8
Vout Min, V	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8

生态计划

	LT3070EUFD#PBF	LT3070EUFD#TRPBF	LT3070IUFD#PBF	LT3070IUFD#TRPBF	LT3070MPUFD	LT3070MPUFD#PBF	LT3070MPUFD#TR	LT3070MPUFD#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Not Compliant	Compliant	Not Compliant	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