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S-8338ACIA-T8T1U
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Product Detailed Parameters
- Description：SWITCHING REGULATOR CONTROLLER
- 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)：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-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：8-TSSOP
- Grade：-
- Qualification：-
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Overview
The S-8338ACIA-T8T1U is a CMOS step-up switching regulator controller from the S-8338 series, manufactured by ABLIC Inc. It operates within an input voltage range of 1.8 V to 6 V and utilizes pulse-width modulation (PWM) control with a maximum oscillation frequency of 1.133 MHz. The device features a fixed maximum duty ratio of 88% and integrates under-voltage lockout (UVLO) and timer latch short-circuit protection circuits. It is housed in an 8-pin TSSOP package.
Feature Summary
- Integrates UVLO and timer latch short-circuit protection for enhanced operational safety
- Supports high-frequency PWM operation up to 1.133 MHz via external resistor setting
- Features a fixed maximum duty ratio of 88% for simplified design implementation
Applications
- Power supply units for LCD panels
- Portable electronic systems operating on low voltages
- Step-up conversion in battery-powered devices
Procurement Notes
Verify the specific suffix T8T1U against official datasheets to confirm tape-and-reel packaging specifications. Ensure compatibility with the required input voltage range and thermal management requirements for the TSSOP-8 package before finalizing procurement orders.
Selection Notes
Select this component when a fixed 88% duty ratio is acceptable for the target application. It is suitable for designs requiring a minimum operating voltage of 1.8 V. Compare with the S-8337 series if variable maximum duty ratio control via an external resistor is required instead of a fixed configuration.
Part Context
This part belongs to the S-8338 series of high-frequency PWM control switching regulator controllers. It shares core architecture with the S-8337 series but differs in duty ratio configurability. The series is designed for low-voltage applications, distinguishing it from higher-voltage power management ICs in the manufacturer's portfolio.
Replacement Considerations
The S-8338ABEB-T8T1G is a documented substitute within the same series offering identical functional characteristics and pinout compatibility.
