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Product Detailed Parameters
- Description：IC REG BOOST ADJ 850MA 8TDFN
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Tape & Reel (TR)
- Function：Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Boost
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：0.65V
- Voltage - Input (Max)：4.5V
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：5V
- Current - Output：850mA (Switch)
- Frequency - Switching：1.2MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-WDFN Exposed Pad
- Supplier Device Package：8-TDFN (3x3)
- Grade：-
- Qualification：-
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Overview
The AS1337A-BTDT is a synchronous boost switching regulator IC manufactured by ams OSRAM. It provides a fixed positive output voltage of 2.5V with a maximum switch current of 850mA. The device operates within an input voltage range of 0.65V to 4.5V and features a switching frequency of 1.2MHz. It is housed in an 8-TDFN (3x3) package with an exposed pad, suitable for surface mount installation. The component supports operation across a temperature range of -40°C to +85°C.
Feature Summary
- Synchronous rectification for improved efficiency
- Fixed 2.5V output configuration
- Compact 8-TDFN surface-mount packaging
Applications
- Portable electronic devices requiring stable 2.5V supply
- Battery-powered systems utilizing boost topology
- Embedded power management circuits
Procurement Notes
Verify component authenticity through authorized channels as the part status is listed as obsolete or end-of-life in multiple distributor records. Confirm package integrity and pin alignment upon receipt. Check for RoHS compliance documentation specific to the manufacturing batch. Ensure storage conditions meet moisture sensitivity level requirements prior to soldering.
Selection Notes
Select this component when a fixed 2.5V output is required from a low-voltage source up to 4.5V. The 850mA current capability suits moderate load applications. Consider the 1.2MHz switching frequency for inductor size trade-offs. Verify that the 8-TDFN footprint matches the PCB layout constraints and thermal design requirements.
Part Context
This part belongs to the AS1337 series of DC-DC converters from ams OSRAM. It shares architectural similarities with other variants like the AS1337B, though output configurations differ. The series targets portable electronics where space and efficiency are critical. The BTDT suffix indicates the specific tape-and-reel packaging format.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. The AS1337B-BTDT is a related variant but offers adjustable output rather than fixed 2.5V. Direct replacement requires verifying electrical compatibility and pinout correspondence.
