S-8355K50MC-NBJT2U

Overview

The S-8355K50MC-NBJT2U is a boost DC-DC switching controller IC from ABLIC Inc., housed in an SOT-23-5 package. It operates with a fixed 600 kHz switching frequency and supports PWM or switchable PWM/PFM control modes. The device accepts input voltages ranging from 0.9V to 10V and provides a regulated positive output of 5.0V. It features an enable function for power management and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Supports both PWM and switchable PWM/PFM control modes for optimized efficiency across load conditions.
• Integrates a high-speed oscillator operating at 600 kHz to minimize external component size.
• Includes an enable pin for precise power management and standby current reduction.

Applications

• Battery-powered portable electronic devices requiring step-up voltage conversion
• Mobile communication equipment utilizing single-cell lithium-ion power sources
• Embedded systems needing compact DC-DC regulation solutions

Procurement Notes

Verify the complete part number including suffixes against official ABLIC documentation to ensure correct output voltage and package configuration. Confirm RoHS compliance status and lead-free specifications prior to ordering. Cross-reference datasheet revisions to validate current manufacturing parameters and environmental certifications.

Selection Notes

Select this component when a compact boost converter is required for low-voltage battery applications. Ensure the input voltage range covers the minimum cell discharge level. Verify that the 600 kHz frequency aligns with EMI requirements and that the SOT-23-5 footprint fits the PCB layout constraints.

Part Context

This part belongs to the S-8355 series of super-small package step-up regulators. The series is designed for space-constrained applications, offering integrated switching controllers in minimal footprints. It complements other ABLIC PMIC solutions by providing efficient voltage boosting capabilities for portable electronics.

Replacement Considerations

Consult official ABLIC substitution guides for compatible alternatives within the S-8355 family. Verify pin compatibility and electrical parameter alignment before replacing. Generic substitutes may not match the specific control mode flexibility or package dimensions.