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S-8338ACCB-T8T1G
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Product Detailed Parameters
- Description：IC REG CTRLR BOOST 8TSSOP
- 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-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：8-TSSOP
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Overview
The S-8338ACCB-T8T1G is a CMOS step-up switching regulator controller from the S-8338 series by ABLIC Inc. It operates within an input voltage range of 1.8 V to 6 V and utilizes pulse width modulation (PWM) control. The internal oscillation frequency is adjustable up to 1.133 MHz via an external resistor on the ROSC pin. The device features a fixed maximum duty ratio of 88% and includes under-voltage lockout (UVLO) and timer latch short-circuit protection circuits. It is housed in an 8-pin TSSOP package.
Feature Summary
- Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient step-up regulation.
- Features timer latch short-circuit protection circuit for enhanced operational safety.
- Allows phase compensation and gain adjustment through external resistor and capacitor connections.
Applications
- Power supply units for LCD displays
- Portable electronic systems operating on low voltage sources
Procurement Notes
Verify the specific suffix codes against official datasheets to confirm package type and electrical tolerances. Confirm RoHS compliance status and check for any Product Change Notifications (PCN) regarding material or manufacturing site updates before finalizing procurement specifications.
Selection Notes
Select this component when designing boost converters requiring a wide input voltage range starting at 1.8 V. Ensure the application benefits from the fixed 88% maximum duty ratio and verify that the required switching frequency can be accurately set using the external ROSC resistor configuration.
Part Context
This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8338 variant specifically distinguishes itself with a fixed maximum duty ratio, whereas the S-8337 series allows duty ratio control via an external resistor. Both share similar core architectures and protection features.
Replacement Considerations
The S-8338ABEC-T8T1G serves as a verified functional substitute within the same series, offering identical step-up switching regulator capabilities and PWM control characteristics.
