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Product Detailed Parameters
- Description：IC REG BUCK 1V/3.3V 500MA 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)：1V, 3.3V
- 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-3310 is a dual-output synchronous buck switching regulator manufactured by ams OSRAM. It provides fixed output voltages of 1V and 3.3V, with each channel capable of delivering up to 500mA. The device operates within an input voltage range of 2.7V to 5.5V and features a 12-WFDFN exposed pad package. It supports surface mount installation and functions across a temperature range of -40°C to +85°C.
Feature Summary
- Dual independent output channels providing simultaneous power rails
- Synchronous rectification for improved efficiency
- Fixed voltage outputs eliminating external resistor programming
Applications
- Portable electronic devices requiring multiple voltage domains
- Embedded systems with mixed logic and peripheral power needs
- Battery-powered equipment utilizing single-cell lithium sources
Procurement Notes
Verify component status as obsolete or end-of-life through official manufacturer channels before design finalization. Confirm exact ordering suffixes match the required pinout and thermal characteristics. Request current datasheets directly from ams OSRAM to ensure compliance with latest revision notes and handling instructions.
Selection Notes
Select this component when dual isolated low-voltage rails are necessary from a single input source. Evaluate thermal performance requirements given the 500mA per channel capability in the 12-WFDFN package. Ensure input voltage stability remains within the specified 2.7V to 5.5V window during all operating conditions.
Part Context
This part belongs to the AS1347 series of synchronous buck regulators designed for space-constrained applications. It complements other single-output variants in the family by offering integrated dual-rail generation. The series targets portable electronics where board area and component count must be minimized while maintaining stable power delivery.
Replacement Considerations
AS1347-BTDT-1812 offers similar dual-output functionality but with different fixed voltage settings (1.2V/1.8V). Verify electrical compatibility and pin alignment before substitution.
