Linear Technology LTC3444 Manuel utilisateur

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 901

MICROPOWER SYNCHRONOUS BUCK-BOOST CONVERTER FOR CDMA AND HSDPA

1

LTC3444

DESCRIPTION

Demonstration circuit 901A features the LTC3444 and is

a highly efficient, 1.5MHz fixed frequency buck-boost

DC/DC converter. The input voltage can range from 3.1V

to 5.0V and is suitable for Li-Ion or three-cell NiCd/NiMH

battery applications while the output voltage can be set

anywhere from 0.8V to 4.2V by injecting a 0.35V – 2.4V

Control Signal.

The DC901A has been optimized for use in 3G WCDMA

applications. High efficiency is achieved at very low out-

put voltages while component count is minimized. The

board provides the fast transient response required to

slew the RF power amplifier from standby to transmit

and transmit to standby levels. Output overvoltage pro-

tection protects the RF power amplifier.

Design files for this circuit board are available. Call

the LTC factory.

QUICK START PROCEDURE

Refer to Figure 1 for proper measurement equipment

setup and follow the procedure below:

1.

Start with Load set to 0A.

2.

Set Power Supply 1 to 3.3V and Power Supply 2 to

1V.

3.

The Load can be set from 0 – 400mA.

Figure 1.

Proper Measurement Equipment Setup

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 901

MICROPOWER SYNCHRONOUS BUCK-BOOST CONVERTER FOR CDMA AND HSDPA

2

Demo Board Parameters:

Parameter Condition Value

Input Voltage Range 3.1V – 5.0V

Maximum Load Current Vout = 0.8V – 4.2V 400mA

VCONTROL Range 0.35V – 2.4V*

Operating Frequency 1.5MHz

* See Table 1 in LTC3444 Datasheet.

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 901

MICROPOWER SYNCHRONOUS BUCK-BOOST CONVERTER FOR CDMA AND HSDPA

3

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 901

MICROPOWER SYNCHRONOUS BUCK-BOOST CONVERTER FOR CDMA AND HSDPA

4

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

Analog Devices Inc.:

DC901A

Ce manuel convient aux modèles suivants

1

Autres manuels Linear Technology Convertisseur de média

Linear Technology

Linear Technology LT3512 Guide de configuration rapide

Linear Technology

Linear Technology LT8494 Guide de configuration rapide

Linear Technology

Linear Technology DC1687A Guide de configuration rapide

Linear Technology

Linear Technology Analog Devices LT8301 Manuel utilisateur

Linear Technology

Linear Technology LTC3725 Manuel utilisateur

Linear Technology

Linear Technology DC1228A Guide de configuration rapide

Linear Technology

Linear Technology DC2111A-A/B Guide de configuration rapide

Linear Technology

Linear Technology LTM8045 Guide de configuration rapide

Linear Technology

Linear Technology LTC3459ES6 Manuel utilisateur

Linear Technology

Linear Technology LT3748 Guide de configuration rapide

Linear Technology

Linear Technology DEMO CIRCUIT 1672A Manuel utilisateur

Linear Technology

Linear Technology LTC1628 Manuel utilisateur

Linear Technology

Linear Technology DC2105A-A Guide de configuration rapide

Linear Technology

Linear Technology DC1731A-A Guide de configuration rapide

Linear Technology

Linear Technology LTC3725 Manuel utilisateur

Linear Technology

Linear Technology DC2490A Guide de configuration rapide

Linear Technology

Linear Technology LT3464ETS8 Manuel utilisateur

Linear Technology

Linear Technology DC2312A-A Guide de configuration rapide

Linear Technology

Linear Technology DC627A-A Manuel utilisateur

Linear Technology

Linear Technology Analog Devices LT8301 Guide de configuration rapide

Linear Technology

Linear Technology DEMONSTRATION CIRCUIT 518 Manuel utilisateur

Linear Technology

Linear Technology LT1300 Manuel utilisateur

Linear Technology

Linear Technology 431 Manuel utilisateur

Linear Technology

Linear Technology LTC2668 Guide de configuration rapide

Manuels Convertisseur de média populaires d'autres marques

SoundTraxx

SoundTraxx Blunami BLU-2200 Manuel utilisateur

SPROLINK

SPROLINK VA1 Manuel utilisateur

Acclaim Lighting

Acclaim Lighting DDC-1-AC Manuel utilisateur

Nikon

Nikon AF-S TC-20E III Manuel utilisateur

Axis

Axis AXIS Q7406 Manuel utilisateur

Omega

Omega TAC80B-J Manuel utilisateur

Zoom

Zoom Thunderbolt TAC-2R Manuel utilisateur

OST

OST iConverter 10/100M Manuel utilisateur

Vertiv

Vertiv Netsure Manuel utilisateur

birddog

birddog MINI Manuel utilisateur

Roland

Roland GI-10 Manuel utilisateur

Wallenstein

Wallenstein WX310 Manuel utilisateur

Pace

Pace MSS 200-1 Manuel utilisateur

Solar Converters

Solar Converters EQ 12/24-50 Manuel utilisateur

CYP

CYP EL-7400V Manuel utilisateur

TIE

TIE MIDI 1i1o Manuel utilisateur

DCS

DCS Vivaldi Upsampler Manuel utilisateur

Westermo

Westermo MCW-211 SERIES Manuel utilisateur