Datasheet Linear Technology LT3434 — Datenblatt

Hersteller	Linear Technology
Serie	LT3434

Hochspannungs-3A, 200-kHz-Abwärtsschaltregler mit 100µA Ruhestrom

Datenblätter

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PDF, 418 Kb, Sprache: en, Datei hochgeladen: Sep 18, 2017, Seiten: 24
High Voltage 3A, 200kHz Step-Down Switching Regulator with 100µA Quiescent Current

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Preise

Verpackung

	LT3434EFE#PBF	LT3434EFE#TRPBF	LT3434IFE#PBF	LT3434IFE#TRPBF
N	1	2	3	4
Package	TSSOP-16 Paketumrisszeichnung	TSSOP-16 Paketumrisszeichnung	TSSOP-16 Paketumrisszeichnung	TSSOP-16 Paketumrisszeichnung
Package Code	FE	FE	FE	FE
Package Index	05-08-1663 (BC)	05-08-1663 (BC)	05-08-1663 (BC)	05-08-1663 (BC)
Pin Count	16	16	16	16

Parameter

Parameters / Models	LT3434EFE#PBF	LT3434EFE#TRPBF	LT3434IFE#PBF	LT3434IFE#TRPBF
Architecture	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC614A	DC614A	DC614A	DC614A
Design Tools	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model
Export Control	no	no	no	no
Features	Burst Mode, External Synchronization	Burst Mode, External Synchronization	Burst Mode, External Synchronization	Burst Mode, External Synchronization
Frequency, kHz	200	200	200	200
Frequency Sync Range	230kHz - 500kHz	230kHz - 500kHz	230kHz - 500kHz	230kHz - 500kHz
Integrated Inductor	no	no	no	no
Ishutdown, µA	1	1	1	1
Isupply, mA	0.1	0.1	0.1	0.1
Max Phases	1	1	1	1
Monolithic	yes	yes	yes	yes
Number of Outputs	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	-40 to 85	-40 to 85
Output Current, A	2.4	2.4	2.4	2.4
Polyphase	no	no	no	no
Switch Current, A	4.7	4.7	4.7	4.7
Synchronous	no	no	no	no
Topology	Buck	Buck	Buck	Buck
Vin Max, V	60	60	60	60
Vin Min, V	3.3	3.3	3.3	3.3
Vout Max, V	54	54	54	54
Vout Maximum	.90VIN	.90VIN	.90VIN	.90VIN
Vout Min, V	1.25	1.25	1.25	1.25

Öko-Plan

	LT3434EFE#PBF	LT3434EFE#TRPBF	LT3434IFE#PBF	LT3434IFE#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant

Konstruktionshinweise

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60V, 3A Step-Down DC/DC Converter Has Low Dropout and 100ВµA Quiescent Current &mdash DN352
PDF, 80 Kb, Datei veröffentlicht: Nov 2, 2004
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advertisement 60V, 3A Step-Down DC/DC Converter Has Low Dropout and
100ВµA Quiescent Current вЂ“ Design Note 352
Keith Szolusha The LTВ®3434, 3A monolithic buck switching regulator
is designed to optimize efп¬Ѓciency over all current and
voltage levels, both high and low. Micropower bias current and Burst Mode В® operation enable it to consume
merely 100ОјA at zero load and 12V input. The high
efп¬Ѓciency bipolar NPN power switch (0.1О©) provides
up to 85% efп¬Ѓciency at a 2A load current. Combined
with high duty cycle, the low dropout of the switch
DIODES INC.
1N4448W
4.7ОјF 100V
TDK C5750X7R2A475M
CERAMIC SHDN BOOST 33ОјH
0.68ОјF COOPER
UP3B-330
DIODES INC.
B360 CSS
0.01ОјF
R1
4.7k
470pF
0.01ОјF 0.01ОјF VC VBIAS CT FB SYNC PGFB …

Modellreihe

Serie: LT3434 (4)

LT3434EFE#PBF LT3434EFE#TRPBF LT3434IFE#PBF LT3434IFE#TRPBF

Herstellerklassifikation

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck | High Input Voltage Buck