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S-8357N33MC-O2ST2U
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Product Detailed Parameters
- Description：IC REG CTRLR BOOST SOT23-5
- Series：-
- Mfr：ABLIC Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Transistor Driver
- Function：Step-Up
- Output Configuration：Positive
- Topology：Boost
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：0.9V ~ 10V
- Frequency - Switching：600kHz
- Duty Cycle (Max)：85%
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Enable
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The S-8357N33MC-O2ST2U is a step-up switching regulator controller from ABLIC, designed for battery-powered applications. It operates within an input voltage range of 0.9 V to 10 V and provides a fixed output voltage of 3.3 V. The device features a low quiescent current of 25.9 µA and supports a maximum output current of 300 mA. It utilizes a PWM control scheme with a switch frequency of 250 kHz. The component is housed in a compact SOT-23-5 package and functions reliably across a temperature range of -40°C to +85°C.
Feature Summary
- Integrates a high-efficiency power MOSFET for compact design
- Features automatic transition between PWM and PFM modes for optimized efficiency
- Includes built-in protection against overcurrent and thermal overload
Applications
- Portable electronic devices requiring extended battery life
- Smartphones and mobile communication equipment
- Digital cameras and portable media players
- Medical monitoring devices
Procurement Notes
Verify the specific suffix O2ST2U against official datasheets to confirm pinout and electrical characteristics. Ensure compatibility with system input voltage ranges and load requirements. Confirm RoHS compliance status through manufacturer documentation before integration into production designs.
Selection Notes
Select this component when a fixed 3.3 V output is required from variable battery sources. Consider the 250 kHz switching frequency for inductor size trade-offs. Evaluate the 300 mA output limit against peak load demands to ensure stable regulation under all operating conditions.
Part Context
This part belongs to the S-8357 series of step-up DC-DC controllers. The series is characterized by low standby current consumption and high conversion efficiency. It targets applications where power conservation is critical during sleep or idle states.
Replacement Considerations
Check for direct pin-compatible alternatives within the same ABLIC family. Verify that substitute parts match the 3.3 V output specification and 300 mA current capability.
