AS1331-BTDT-33

$0.96

Description：IC REG BCK BST 3.3V 450MA 10TDFN
Series：-
Mfr：ams-OSRAM USA INC.
Package：Tape & Reel (TR)

SKU:835e7df235f4 Category: Voltage Regulators - DC DC Switching Regulators Brand: ams-OSRAM USA INC.

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Product introduction

Product Detailed Parameters

Description：IC REG BCK BST 3.3V 450MA 10TDFN
Series：-
Mfr：ams-OSRAM USA INC.
Package：Tape & Reel (TR)
Function：Step-Up/Step-Down
Output Configuration：Positive
Topology：Buck-Boost
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：1.8V
Voltage - Input (Max)：5.5V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Current - Output：450mA (Switch)
Frequency - Switching：-
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：10-WFDFN Exposed Pad
Supplier Device Package：10-TDFN (3x3)
Grade：-
Qualification：-

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AS1331-BTDT-33

Overview

The AS1331-BTDT-33 is a synchronous buck-boost DC/DC converter manufactured by ams OSRAM. It provides a fixed 3.3V output with a maximum current of 450mA. The device operates at a switching frequency of 500kHz and supports input voltages above, below, or equal to the output voltage. It features low quiescent current of 22µA and functions within a temperature range of -40°C to +85°C. The component is housed in a 10-WFDFN exposed pad package.

Feature Summary

Synchronous buck-boost topology handles input voltages above, below, or equal to the output voltage
Low quiescent current consumption for efficient power management
Fixed 3.3V output voltage regulation

Applications

Battery-powered portable devices
Mobile communication equipment
Wearable electronics

Procurement Notes

Verify component authenticity through authorized channels as this part is obsolete. Confirm package integrity and pin alignment against the official datasheet specifications. Check for manufacturing date codes and lot traceability records. Ensure storage conditions comply with moisture sensitivity levels prior to assembly.

Selection Notes

Select this component when a fixed 3.3V output is required from varying battery sources. Consider the 450mA load capability and 500kHz switching frequency for space-constrained designs. Evaluate thermal performance requirements due to the exposed pad package type.

Part Context

This part belongs to the AS1331 series of synchronous buck-boost converters. It shares architectural similarities with variants like AS1331-BTDT-25 and AS1331-BTDT-33, differing primarily in output voltage settings. The series targets applications requiring stable regulation from single-cell lithium-ion batteries.