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AS1329 - DC-DC Step-Up Converters

Description

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.

Features

  • ! ! ! ! ! ! ! ! ! ! ! ! ! 95% Efficiency Single-Cell Operation Delivers 160mA @ 3.3V (from Single AA Cell) Delivers 220mA @ 5.0V (from Two AA Cells) Delivers 570mA @ 3.3V (from Two AA Cells) Low Start-Up Voltage: 0.85V High-Speed Fixed-Frequency: 1.2MHz Internal PMOS Synchronous Rectifier Automatic Powersave Operation (AS1329A&B) Continuous Switching at Light Loads (AS1329C) Anti-Ringing Control Minimizes EMI Logic Controlled Shutdown (< 1µA) Output Range: 2.5 to 5.0V 6-pin TSOT-23 Package AS1.

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Datasheet preview – AS1329

Datasheet Details

Part number AS1329
Manufacturer austriamicrosystems AG
File Size 803.48 KB
Description DC-DC Step-Up Converters
Datasheet download datasheet AS1329 Datasheet
Additional preview pages of the AS1329 datasheet.

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Full PDF Text Transcription

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AS1329 www.datasheet4u.com Product Brief L o w Vo l ta g e , M i c r o p o w e r, D C - D C St e p - U p C o n v e r t e r s 1 General Description 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. The converters are available as the standard products listed in Table 1. Table 1.
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