Datasheet Linear Technology LTC3408 — Datenblatt

Hersteller	Linear Technology
Serie	LTC3408

Synchroner Abwärtsregler mit 1,5 MHz und 600 mA und Bypass-Transistor

Datenblätter

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PDF, 165 Kb, Sprache: en, Datei hochgeladen: Sep 21, 2017, Seiten: 12
1.5MHz, 600mA Synchronous Step-Down Regulator with Bypass Transistor

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Preise

Verpackung

	LTC3408EDD#PBF	LTC3408EDD#TRPBF
N	1	2
Package	3x3 DFN-8 Paketumrisszeichnung	3x3 DFN-8 Paketumrisszeichnung
Package Code	DD	DD
Package Index	05-08-1698	05-08-1698
Pin Count	8	8

Parameter

Parameters / Models	LTC3408EDD#PBF	LTC3408EDD#TRPBF
Architecture	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC645A	DC645A
Design Tools	LTspice Model	LTspice Model
Export Control	no	no
Features	100% Duty Cycle	100% Duty Cycle
Frequency, kHz	1500	1500
Integrated Inductor	no	no
Ishutdown, µA	0.1	0.1
Isupply, mA	1.5	1.5
Max Phases	1	1
Monolithic	yes	yes
Number of Outputs	1	1
Operating Temperature Range, °C	0 to 85	0 to 85
Output Current, A	0.6	0.6
Polyphase	no	no
Switch Current, A	1	1
Synchronous	yes	yes
Topology	Buck	Buck
Vin Max, V	5	5
Vin Min, V	2.5	2.5
Vout Max, V	5	5
Vout Maximum	Vin	Vin
Vout Min, V	0.3	0.3
Vref Accuracy Over Temp, %	2.1	2.1

Öko-Plan

	LTC3408EDD#PBF	LTC3408EDD#TRPBF
RoHS	Compliant	Compliant

Artikel

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1.5MHz Monolithic Synchronous Step-Down Regulator Brings High Efficiency to WCDMA Cellular Telephone Applications &mdash LT Journal
PDF, 283 Kb, Datei veröffentlicht: Feb 1, 2004
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DESIGN IDEAS 1.5MHz Monolithic Synchronous
Step-Down Regulator Brings High
Efficiency to WCDMA Cellular
Telephone Applications
by Theo Phillips
Introduction To extend talk time and save battery
power, new 3rd generation WCDMA
cellular telephones are expected to
adjust their power levels to the requirements of each transmission. The
highest power levels are reserved for
data transmission far from the base
station; the lowest for voice transmission near the station. Power amplifiers
in these phones require a DC power
supply which can slew quickly from
one voltage to another. To perform this
function, the LTC3403 and LTC3408
provide DC/DC conversion from single
lithium-ion cell voltages down to a
dynamically adjustable 0.3VвЂ“3.5V,
which can be easily modulated with
an external DAC.
These monolithic, synchronous
step-down regulators are offered in a …

Modellreihe

Serie: LTC3408 (2)

LTC3408EDD#PBF LTC3408EDD#TRPBF

Herstellerklassifikation

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Internal Power Switch Buck

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Datenblätter Datasheet Analog Devices LTC3408

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