AS1329A-BTTT

AS1329A-BTTT Datasheet

AS1329

Part	Datasheet
AS1329A-BTTT	AS1329A-BTTT (pdf)

Related Parts	Information
AS1329C-BTTT	AS1329C-BTTT
AS1329B-BTTT	AS1329B-BTTT

PDF Datasheet Preview
Datasheet AS1329 Low Voltage, Micropower, DC-DC Step-Up Converters 1 General Description 2 Key Features The AS1329A, AS1329B and the AS1329C are synchronous, fixed frequency, very high-efficiency DC-DC boost converters capable of supplying 3.3V at 160mA from a single AA-supply. Compact size and minimum external parts requirements make these devices perfect for modern portable devices. High-speed switching frequency 1.2MHz and internally compensated PWM current mode design provide highlyreliable DC-DC conversion, especially when driving white LEDs. ! Low Start-Up Voltage 0.85V ! Output Range 2.5V to 5.0V ! Single-Cell Operation ! Operating with coils down to 2.2µH ! Delivers 160mA 3.3V from Single AA Cell ! Delivers 220mA 5.0V from Two AA Cells The converters are available as the standard products listed in Table Table Standard Products Model Light Load Switching ! Delivers 570mA 3.3V from Two AA Cells ! 95% Efficiency ! High-Speed Fixed-Frequency 1.2MHz AS1329A Medium Load Automatic Powersave Operation AS1329B Light Load Automatic Powersave Operation AS1329C Continuous Switching ! Internal PMOS Synchronous Rectifier ! Automatic Powersave Operation AS1329A&B ! Continuous Switching at Light Loads AS1329C The devices contain two internal MOSFET switches one NMOS switch and one PMOS synchronous rectifier. ! Logic Controlled Shutdown < 1µA ! 6-pin TSOT-23 Package and 6-bump WL-CSP Anti-ringing control circuitry reduces EMI by damping the inductor in discontinuous mode, and the devices exhibit extremely low quiescent current < 1µA in shutdown. In shutdown mode the battery is connected directly to the output enabling the supply of real-time-clocks. The AS1329 is available in a 6-pin TSOT-23 package and 6-bump WL-CSP. 3 Applications The AS1329 is ideal for low-power applications where ultra-small size is critical as in medical diagnostic equipment, hand-held instruments, pagers, digital cameras, remote wireless transmitters, MP3 players, LCD bias supplies, cordless phones, GPS receivers, and PC cards. Figure Typical Application Diagram Single Cell to 3.3V Synchronous Boost Converter L1 4.7µH AA Battery 10µF SHDNN 5 VOUT AS1329 FB 2 GND R1 1.02MΩ R2 604kΩ C2 10µF VOUT 3.3V 160mA 1 - 22 AS1329 Datasheet - Pin Assignments Datasheet - Ordering Information 11 Ordering Information The device is available as the standard products listed in Table Table Ordering Information Ordering Code AS1329A-BTTT AS1329B-BTTT AS1329C-BTTT AS1329A-BWLT Marking Descriptiom ASPA Low Voltage, Micropower, DC-DC Step-Up Converter with Automatic Powersave Operation beginning at Medium Loads ASPB Low Voltage, Micropower, DC-DC Step-Up Converter with Automatic Powersave Operation beginning at Light Loads ASPC Low Voltage, Micropower, DC-DC Step-Up Converter with Continuous Switching Low Voltage, Micropower, DC-DC Step-Up Converter with Continuous Switching Delivery Form Tape and Reel Tape and Reel Tape and Reel Tape and Reel Package 6-pin TSOT-23 6-pin TSOT-23 6-pin TSOT-23 6-bump WLCSP Note All products are RoHS compliant and Pb-free. Buy our products or get free samples online at ICdirect: For further information and requests, please contact us or find your local distributor at 21 - 22 AS1329 Datasheet Copyrights Copyright 1997-2009, austriamicrosystems AG, Tobelbaderstrasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies. Disclaimer Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services. Contact Information Headquarters austriamicrosystems AG Tobelbaderstrasse 30 A-8141 Unterpremstaetten, Austria Tel +43 0 3136 500 0 Fax +43 0 3136 525 01 For Sales Offices, Distributors and Representatives, please visit: 22 - 22

PDF Datasheet Preview

Datasheet

AS1329

Low Voltage, Micropower, DC-DC Step-Up Converters
1 General Description
2 Key Features

The AS1329A, AS1329B and the AS1329C are synchronous, fixed frequency, very high-efficiency DC-DC boost converters capable of supplying 3.3V at 160mA from a single AA-supply. Compact size and minimum external parts requirements make these devices perfect for modern portable devices.

High-speed switching frequency 1.2MHz and internally compensated PWM current mode design provide highlyreliable DC-DC conversion, especially when driving white LEDs.
! Low Start-Up Voltage 0.85V ! Output Range 2.5V to 5.0V ! Single-Cell Operation ! Operating with coils down to 2.2µH ! Delivers 160mA 3.3V from Single AA Cell ! Delivers 220mA 5.0V from Two AA Cells

The converters are available as the standard products listed in Table

Table Standard Products

Model

Light Load Switching
! Delivers 570mA 3.3V from Two AA Cells ! 95% Efficiency ! High-Speed Fixed-Frequency 1.2MHz

AS1329A

Medium Load Automatic Powersave Operation

AS1329B Light Load Automatic Powersave Operation

AS1329C

Continuous Switching
! Internal PMOS Synchronous Rectifier ! Automatic Powersave Operation AS1329A&B ! Continuous Switching at Light Loads AS1329C

The devices contain two internal MOSFET switches one NMOS switch and one PMOS synchronous rectifier.
! Logic Controlled Shutdown < 1µA ! 6-pin TSOT-23 Package and 6-bump WL-CSP

Anti-ringing control circuitry reduces EMI by damping the inductor in discontinuous mode, and the devices exhibit extremely low quiescent current < 1µA in shutdown.

In shutdown mode the battery is connected directly to the output enabling the supply of real-time-clocks.

The AS1329 is available in a 6-pin TSOT-23 package and 6-bump WL-CSP.
3 Applications

The AS1329 is ideal for low-power applications where ultra-small size is critical as in medical diagnostic equipment, hand-held instruments, pagers, digital cameras, remote wireless transmitters, MP3 players, LCD bias supplies, cordless phones, GPS receivers, and PC cards.

Figure Typical Application Diagram Single Cell to 3.3V Synchronous Boost Converter

L1 4.7µH

AA Battery
10µF

SHDNN
5 VOUT

AS1329

FB 2 GND

R1 1.02MΩ

R2 604kΩ

C2 10µF

VOUT 3.3V 160mA
1 - 22

AS1329

Datasheet - Pin Assignments
Datasheet - Ordering Information
11 Ordering Information

The device is available as the standard products listed in Table
Table Ordering Information
Ordering Code AS1329A-BTTT

AS1329B-BTTT AS1329C-BTTT AS1329A-BWLT

Marking

Descriptiom

ASPA

Low Voltage, Micropower, DC-DC Step-Up Converter with Automatic Powersave Operation
beginning at Medium Loads

ASPB

Low Voltage, Micropower, DC-DC Step-Up Converter with Automatic Powersave Operation
beginning at Light Loads

ASPC

Low Voltage, Micropower, DC-DC Step-Up Converter with Continuous Switching

Low Voltage, Micropower, DC-DC Step-Up Converter with Continuous Switching

Delivery Form Tape and Reel

Tape and Reel Tape and Reel Tape and Reel

Package 6-pin TSOT-23
6-pin TSOT-23
6-pin TSOT-23 6-bump WLCSP

Note All products are RoHS compliant and Pb-free. Buy our products or get free samples online at ICdirect:

For further information and requests, please contact us or find your local distributor at
21 - 22

AS1329

Datasheet

Copyrights

Copyright 1997-2009, austriamicrosystems AG, Tobelbaderstrasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies.

Disclaimer

Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services.

Contact Information

Headquarters austriamicrosystems AG Tobelbaderstrasse 30 A-8141 Unterpremstaetten, Austria Tel +43 0 3136 500 0 Fax +43 0 3136 525 01

For Sales Offices, Distributors and Representatives, please visit:
22 - 22

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AS1329A-BTTT Datasheet file may be downloaded here without warranties.

Datasheet ID: AS1329A-BTTT 519593