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Product Detailed Parameters
- Description：IC REG BUCK 1.2V/1.8V DL 12TDFN
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：2
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：1.2V, 1.8V
- Voltage - Output (Max)：-
- Current - Output：500mA
- Frequency - Switching：2MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：12-WFDFN Exposed Pad
- Supplier Device Package：12-TDFN (3x3)
- Grade：-
- Qualification：-
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Overview
The AS1347-BTDT-1812 is a dual-output synchronous buck switching regulator manufactured by ams OSRAM. It provides fixed output voltages of 1.2V and 1.8V, each capable of delivering current within the specified operational limits for its class. The device operates from an input voltage range of 2.7V to 5.5V with a switching frequency of 2MHz. It features a 12-TDFN package with exposed pad for thermal management.
Feature Summary
- Dual-output synchronous buck topology for efficient power conversion
- Fixed output voltage configuration ensuring stable supply rails
- Integrated synchronous rectification for improved efficiency
Applications
- Portable electronic devices requiring multiple voltage rails
- Battery-powered systems needing efficient step-down regulation
- Embedded applications with space-constrained PCB layouts
Procurement Notes
Verify component authenticity through authorized distributors as this part may be obsolete or discontinued. Confirm package integrity and pin alignment upon receipt. Check datasheet revisions for any functional updates. Ensure storage conditions meet manufacturer specifications to prevent degradation. Validate compatibility with existing design parameters before integration.
Selection Notes
Choose this component when dual isolated outputs are required from a single input source. Consider the 2MHz switching frequency for smaller passive components. Evaluate thermal performance in enclosed environments due to the TDFN package. Verify input voltage stability within the 2.7V to 5.5V range. Assess load requirements against individual output capabilities.
Part Context
This regulator belongs to the AS1347 series of synchronous buck converters designed for compact power solutions. It complements other ams OSRAM PMIC offerings by providing multi-rail support in a small footprint. The series targets mobile and portable electronics where efficiency and size are critical constraints.
Replacement Considerations
Check for direct pin-compatible substitutes within the AS1347 family. Verify equivalent electrical characteristics if cross-referencing with other manufacturers. Confirm availability status as the part may be discontinued.
