Datasheet Linear Technology LT3464 — Datenblatt

Hersteller	Linear Technology
Serie	LT3464

Mikropower-Aufwärtswandler mit integriertem Schottky- und Ausgangs-Trennschalter in ThinSOT

Datenblätter

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PDF, 255 Kb, Sprache: en, Datei hochgeladen: Sep 18, 2017, Seiten: 16
Micropower Boost Converter with Integrated Schottky and Output Disconnect in ThinSOT

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Preise

Verpackung

	LT3464ETS8#PBF	LT3464ETS8#TRMPBF	LT3464ETS8#TRPBF
N	1	2	3
Package	SOT-23 Paketumrisszeichnung	SOT-23 Paketumrisszeichnung	SOT-23 Paketumrisszeichnung
Package Code	TS8	TS8	TS8
Package Index	05-08-1637	05-08-1637	05-08-1637
Pin Count	8	8	8

Parameter

Parameters / Models	LT3464ETS8#PBF	LT3464ETS8#TRMPBF	LT3464ETS8#TRPBF
Architecture	Constant Off-Time Current Mode	Constant Off-Time Current Mode	Constant Off-Time Current Mode
Demo Boards	DC612A	DC612A	DC612A
Design Tools	LTspice Model	LTspice Model	LTspice Model
Export Control	no	no	no
Features	Integrated Schottky Diode, Burst Mode, Output Disconnect	Integrated Schottky Diode, Burst Mode, Output Disconnect	Integrated Schottky Diode, Burst Mode, Output Disconnect
Frequency Adjust Range	Constant Off Time	Constant Off Time	Constant Off Time
Integrated Inductor	no	no	no
Ishutdown, µA	0.01	0.01	0.01
Isupply, mA	0.025	0.025	0.025
Monolithic	yes	yes	yes
Number of Outputs	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85
Polyphase	no	no	no
Switch Current, A	0.08	0.08	0.08
Synchronous	no	no	no
Topology	Boost, Sepic	Boost, Sepic	Boost, Sepic
Topology 1	Boost, Sepic	Boost, Sepic	Boost, Sepic
Vin Max, V	10	10	10
Vin Min, V	2	2	2
Vin Min Startup, V	2	2	2
Vout Max, V	34	34	34
Vout Max 2, V	40	40	40
Vout Min, V	1.25	1.25	1.25
Vswitch Max, V	36	36	36

Öko-Plan

	LT3464ETS8#PBF	LT3464ETS8#TRMPBF	LT3464ETS8#TRPBF
RoHS	Compliant	Compliant	Compliant

Konstruktionshinweise

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Compact Step-Up Converter Conserves Battery Power &mdash DN358
PDF, 76 Kb, Datei veröffentlicht: Jan 11, 2005
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advertisement Compact Step-Up Converter Conserves Battery Power
Design Note 358
Mike Shriver
Introduction
The LTВ®3464 is an ideal choice for portable devices
which require a tiny, efп¬Ѓcient and rugged step-up converter. The device, housed in a low proп¬Ѓle (1mm) 8-lead
ThinSOTв„ў package, integrates a Schottky diode, NPN
main switch and PNP output disconnect switch. For
light load efп¬Ѓciency, Burst ModeВ® operation is used to
deliver power to the load. This results in high efп¬Ѓciency
and minimal battery current draw over a broad range
of load current. Quiescent current is only 25ОјA. While
in shutdown, the output disconnect switch separates
the load from the input, further increasing battery run
time. This same feature reduces the fault current to
45mA (typ) when the output is shorted to ground, a
feature that few boost converters offer.
Another advantage of the LT3464 is its small solution
size. A constant off-time architecture is used with п¬Ѓxed
peak current limit switching. The low current limit of
115mA and an off-time of 250ns enable the use of tiny
surface mount inductors and capacitors, while an internal phase lead capacitor reduces output voltage ripple.
L …

Artikel

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Micropower SOT-23 Boost with Integrated Schottky Diode Provides Output Disconnect and Short Circuit Protection &mdash LT Journal
PDF, 234 Kb, Datei veröffentlicht: Sep 1, 2003
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DESIGN FEATURES Micropower SOT-23 Boost
with Integrated Schottky Diode
Provides Output Disconnect and
by Leonard Shtargot
Short Circuit Protection
Introduction
The LT3464 is the only micropower
boost converter in the industry to
combine a 36V NPN power switch,
power Schottky diode, and output
disconnect into an 8-lead ThinSOT.
This unprecedented level of integration saves several external components
while offering true output disconnect,
making it possible to generate outputs
of up to 34V with a zero current shutdown while using a mere 40mm2 of
board area (refer to Fig. 1).
In addition to component savings, the LT3464 offers a low typical
switch current limit of 115mA and fast
switching, a combination that allows
the use of a tiny chip inductor and tiny
ceramic capacitors. The LT3464 also
features Burst Mode control (see Figure 2), which results in highly efficient
operation over a wide range of load …

Modellreihe

Serie: LT3464 (3)

LT3464ETS8#PBF LT3464ETS8#TRMPBF LT3464ETS8#TRPBF

Herstellerklassifikation

Power Management > Switching Regulator > LCD/CCD/OLED Bias | SEPIC Regulators
Power Management > Switching Regulator > Step-Up (Boost) Regulators > Micropower Boost | Internal Power Switch Boost