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S-8338AADB-P8T1G
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Product Detailed Parameters
- Description：IC REG CTRLR BOOST 8SON
- Series：-
- Mfr：ABLIC Inc.
- Package：Tape & Reel (TR)
- Output Type：Transistor Driver
- Function：Step-Up
- Output Configuration：Positive
- Topology：Boost
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 6V
- Frequency - Switching：257.4kHz ~ 1.134MHz
- Duty Cycle (Max)：88.50%
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Current Limit, Enable, Frequency Control
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SMD, Flat Leads
- Supplier Device Package：8-SON (A) (2.9x2.8)
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Overview
The S-8338AADB-P8T1G is a CMOS step-up switching regulator controller from the S-8338 series by ABLIC Inc. It operates with an input voltage range of 1.8V to 6V and supports a switching frequency between 257.4kHz and 1.134MHz. The device features a maximum duty cycle of 88.5% and includes control characteristics such as current limiting, enable, and frequency control. It utilizes pulse width modulation (PWM) in voltage-mode control topology for positive output configuration. Packaged in an 8-SON format measuring 2.9x2.8mm, it functions within a temperature range of -40°C to 85°C.
Feature Summary
- Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient step-up regulation.
- Includes under-voltage lockout (UVLO) and timer latch short-circuit protection circuits.
- Supports external frequency setting via resistor connection to the ROSC pin.
Applications
- Power supply for LCD panels
- Portable systems operating on low voltage
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm datasheet revision status and RoHS compliance documentation prior to integration. Ensure ordering suffixes match specific package and tape-and-reel requirements. Cross-reference part numbers against official ABLIC databases to avoid obsolete or non-compliant variants during procurement processes.
Selection Notes
Evaluate thermal performance and PCB layout constraints associated with the 8-SON package dimensions. Consider the impact of the 88.5% maximum duty ratio on boost converter design efficiency at varying input voltages. Assess compatibility with external components required for frequency adjustment and current limiting implementation within the specified operational temperature range.
Part Context
This component belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The series is designed for applications requiring low minimum operating voltages and flexible frequency settings. The S-8338 variant specifically focuses on step-up topologies with integrated protection features suitable for portable electronics.
Replacement Considerations
S-8338ABEA-P8T1G and S-8338ACDC-P8T1G are documented substitutes within the same series offering similar electrical specifications and packaging options.
