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Product Detailed Parameters
- Description：IC REG BOOST 4.5V 400MA 8WLCSP
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Tape & Reel (TR)
- Function：Step-Up
- Output Configuration：Positive
- Topology：Boost
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：0.7V
- Voltage - Input (Max)：5V
- Voltage - Output (Min/Fixed)：4.5V
- Voltage - Output (Max)：-
- Current - Output：400mA (Switch)
- Frequency - Switching：-
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-UFBGA, WLCSP
- Supplier Device Package：8-WLCSP (1.62x0.84)
- Grade：-
- Qualification：-
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Overview
The AS1312-BWLM-45 is a fixed-output boost switching regulator IC manufactured by ams OSRAM. It provides a positive fixed output voltage of 4.5V with a single output channel. The device supports an input voltage range from 0.7V to 5V and delivers a switch current of 400mA. It is housed in an 8-pin WLCSP (Wafer Level Chip Scale Package) or UFBGA format, designed for surface-mount technology applications.
Feature Summary
- Integrates a step-up DC-DC converter function for voltage boosting
- Provides a fixed positive output voltage configuration
- Operates within a wide input voltage range starting at 0.7V
- Utilizes a compact wafer-level chip scale package for space-constrained designs
Applications
- Portable electronic devices requiring voltage step-up
- Battery-powered systems needing regulated higher voltage rails
- Compact consumer electronics with limited board space
Procurement Notes
Verify the specific suffix BWLM-45 against the manufacturer's latest datasheet to confirm the 4.5V fixed output and 400mA switch current ratings. Ensure compatibility with the 8-pin WLCSP footprint during PCB layout. Confirm availability status as supply conditions may vary by region and distributor.
Selection Notes
Select this component when a fixed 4.5V output is required from low input voltages down to 0.7V. The 400mA switch current capability suits moderate load applications. The WLCSP package is ideal for high-density layouts where minimal height and small footprint are critical constraints compared to larger regulator packages.
Part Context
This part belongs to the AS1312 series of switching voltage regulators from ams OSRAM. The series includes variants with different fixed output voltages, such as the AS1312-BWLT-33 which provides a 3.3V output. These components are categorized under PMIC - Power Management ICs and are designed for efficient power conversion in portable applications.
Replacement Considerations
The AS1312-BWLT-33 is a related variant within the same series but provides a 3.3V output instead of 4.5V. Direct substitution requires verifying that the system design can accommodate the different fixed output voltage level while maintaining the same package and current specifications.
