Datasheet Linear Technology LT3042 — Datenblatt

Hersteller	Linear Technology
Serie	LT3042

20 V, 200 mA, ultraniedriges Rauschen, ultrahoher PSRR-HF-Linearregler

Datenblätter

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PDF, 1.2 Mb, Sprache: en, Datei hochgeladen: Mar 27, 2018, Seiten: 32
20V, 200mA, Ultralow Noise, Ultrahigh PSRR RF Linear Regulator

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Verpackung

	LT3042EDD#PBF	LT3042EDD#TRPBF	LT3042EMSE#PBF	LT3042EMSE#TRPBF	LT3042HDD#PBF	LT3042HDD#TRPBF	LT3042HMSE#PBF	LT3042HMSE#TRPBF	LT3042IDD#PBF	LT3042IDD#TRPBF	LT3042IMSE#PBF	LT3042IMSE#TRPBF	LT3042MPDD#PBF	LT3042MPDD#TRPBF	LT3042MPMSE#PBF	LT3042MPMSE#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
Package	3x3 DFN-10 Paketumrisszeichnung	3x3 DFN-10 Paketumrisszeichnung	MS-10E Paketumrisszeichnung	MS-10E Paketumrisszeichnung	3x3 DFN-10 Paketumrisszeichnung	3x3 DFN-10 Paketumrisszeichnung	MS-10E Paketumrisszeichnung	MS-10E Paketumrisszeichnung	3x3 DFN-10 Paketumrisszeichnung	3x3 DFN-10 Paketumrisszeichnung	MS-10E Paketumrisszeichnung	MS-10E Paketumrisszeichnung	3x3 DFN-10 Paketumrisszeichnung	3x3 DFN-10 Paketumrisszeichnung	MS-10E Paketumrisszeichnung	MS-10E Paketumrisszeichnung
Package Code	DD	DD	MSE	MSE	DD	DD	MSE	MSE	DD	DD	MSE	MSE	DD	DD	MSE	MSE
Package Index	05-08-1699	05-08-1699	05-08-1664	05-08-1664	05-08-1699	05-08-1699	05-08-1664	05-08-1664	05-08-1699	05-08-1699	05-08-1664	05-08-1664	05-08-1699	05-08-1699	05-08-1664	05-08-1664
Pin Count	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10

Parameter

Parameters / Models	LT3042EDD#PBF	LT3042EDD#TRPBF	LT3042EMSE#PBF	LT3042EMSE#TRPBF	LT3042HDD#PBF	LT3042HDD#TRPBF	LT3042HMSE#PBF	LT3042HMSE#TRPBF	LT3042IDD#PBF	LT3042IDD#TRPBF	LT3042IMSE#PBF	LT3042IMSE#TRPBF	LT3042MPDD#PBF	LT3042MPDD#TRPBF	LT3042MPMSE#PBF	LT3042MPMSE#TRPBF
Demo Boards	DC2246B,DC2429A	DC2246B,DC2429A	DC2246B,DC2429A	DC2246B,DC2429A	DC2246B,DC2429A	DC2246B,DC2429A	DC2246B,DC2429A	DC2246B,DC2429A	DC2246B,DC2429A	DC2246B,DC2429A	DC2246B,DC2429A	DC2246B,DC2429A	DC2246B,DC2429A	DC2246B,DC2429A	DC2246B,DC2429A	DC2246B,DC2429A
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	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	no	no	no	no	no	no	no	no
Dropout Voltage, V	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35
Export Control	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Features	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown	Ultralow Noise, Ultrahigh PSRR, Current Source Reference, Output Current Monitor, Power Good, Shutdown
Ishutdown, µA	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3
Isupply, mA	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
LDO Output Current, A	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2
Max Junction Temp, Deg	150	150	150	150	150	150	150	150	150	150	150	150	150	150	150	150
Number of Outputs	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85	0 to 85	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-55 to 125	-55 to 125	-55 to 125	-55 to 125
Output Current, A	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2
Output Voltage	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj	Adj
PSRR, dB	117	117	117	117	117	117	117	117	117	117	117	117	117	117	117	117
RMS Noise, µV	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8
Theta JA	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)	34В°C/W (DD), 33В°C/W (MSE)
Type	PNP	PNP	PNP	PNP	PNP	PNP	PNP	PNP	PNP	PNP	PNP	PNP	PNP	PNP	PNP	PNP
Vin Max, V	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20
Vin Min, V	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8
Vout Max, V	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15

Öko-Plan

	LT3042EDD#PBF	LT3042EDD#TRPBF	LT3042EMSE#PBF	LT3042EMSE#TRPBF	LT3042HDD#PBF	LT3042HDD#TRPBF	LT3042HMSE#PBF	LT3042HMSE#TRPBF	LT3042IDD#PBF	LT3042IDD#TRPBF	LT3042IMSE#PBF	LT3042IMSE#TRPBF	LT3042MPDD#PBF	LT3042MPDD#TRPBF	LT3042MPMSE#PBF	LT3042MPMSE#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Anwendungshinweise

Herunterladen
Measuring 2nV/в€љHz Noise and 120dB Supply Rejection on Linear Regulators &mdash AN159
PDF, 1.1 Mb, Datei veröffentlicht: Feb 2, 2016
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Application Note 159
February, 2016
Measuring 2nV/в€љHz Noise and 120dB Supply Rejection
on Linear Regulators
The Quest for Quiet
Todd Owen and Amit Patel
Introduction MEASURING OUTPUT VOLTAGE NOISE A quiet, well regulated supply is important for optimum
performance with a number of circuit applications. Voltage controlled oscillators (VCOs) and precision voltage
controlled crystal oscillators (VCXOs) respond to small
changes in their supply very quickly. Phase-locked loops
(PLLs) require a stable supply as signal on the supply
translates directly to phase noise in the output. RF amplifiers require quiet supplies as they have little to no ability
to reject supply variations and regulator variation will
appear as unwanted side bands and lower the signal-tonoise ratio. Low noise amplifiers and analog-to-digital
converters (ADCs) do not have infinite supply rejection
and the cleaner the regulator output is, the higher their
performance. These are just a few applications where linear
regulators are required to provide quiet power supply rails,
but how does one ensure that the regulator is performing
as advertised? Being Quiet is Nothing New Once fully built, one can determine if the supply being
used has low enough noise for the application. Oscillator
phase noise is measured and compared against results
achieved with a known good supply, ADCs are checked …

Artikel

Herunterladen
Industry's First 0.8µVRMS Noise LDO Has 79dB Power Supply Rejection Ratio at 1MHz &mdash LT Journal
PDF, 1.1 Mb, Datei veröffentlicht: Apr 7, 2015
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April 2015 I N T H I S I S S U E patent-pending boost-buck
LED driver topology 8 I2C programmable
supervisors with EEPROM
12 Volume 25 Number 1 IndustryвЂ™s First 0.8ВµVRMS Noise
LDO Has 79dB Power Supply
Rejection Ratio at 1MHz
Amit Patel 18V buck-boost converter
with intelligent PowerPath
control delivers >2A 16 advantages of 75W boost
mode LED driver 22 how to design an isolated,
high frequency, push-pull
DC/DC converter 25 When it comes to powering noise-sensitive analog/RF applications,
low dropout (LDO) linear regulators are generally preferred over their
switching counterparts. Low noise LDOs power a wide range of
analog/RF designs, including frequency synthesizers (PLLs/VCOs),
RF mixers and modulators, high speed and high resolution data
converters (ADCs and DACs) and precision sensors. Nevertheless,
these applications have reached capabilities and sensitivities
that are testing the limits of conventional low noise LDOs.
For instance, in many high end VCOs, power supply noise
directly affects the VCO output phase noise (jitter). Moreover,
to meet overall system efficiency requirements, the LDO
usually post-regulates the output of a relatively noisy …

Modellreihe

Serie: LT3042 (16)

LT3042EDD#PBF LT3042EDD#TRPBF LT3042EMSE#PBF LT3042EMSE#TRPBF LT3042HDD#PBF LT3042HDD#TRPBF LT3042HMSE#PBF LT3042HMSE#TRPBF LT3042IDD#PBF LT3042IDD#TRPBF LT3042IMSE#PBF LT3042IMSE#TRPBF LT3042MPDD#PBF LT3042MPDD#TRPBF LT3042MPMSE#PBF LT3042MPMSE#TRPBF

Herstellerklassifikation

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