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S-8333ACFB-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：280kHz ~ 1.08MHz
- Duty Cycle (Max)：89%
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Current Limit, 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-8333ACFB-T8T1G is a CMOS step-up switching regulator controller 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. The device features an internal oscillator with a maximum frequency of 1.08 MHz, adjustable via an external resistor on the ROSC pin. It is housed in an 8-pin TSSOP package.
Feature Summary
- Integrates reference voltage circuit, oscillator, error amplifier, and PWM controller
- Includes under-voltage lockout and timer latch short-circuit protection circuits
- Allows adjustment of maximum duty ratio via external resistor on RDuty pin
- Supports phase compensation and gain adjustment through external RC components
Applications
- Power supply for LCD modules
- Portable systems operating on low voltage
- Step-up DC-DC converter designs requiring high-frequency operation
Procurement Notes
Verify the specific suffix 'CFB' against the official datasheet to confirm output configuration and pinout compatibility. Confirm RoHS compliance status and check for any recent design changes or obsolescence notices from ABLIC before finalizing procurement plans.
Selection Notes
Select this component when a low minimum operating voltage of 1.8 V is required for step-up applications. Ensure the external resistor values for ROSC and RDuty pins are calculated to meet specific frequency and duty cycle requirements. Verify that the TSSOP-8 package fits the PCB layout constraints.
Part Context
This part belongs to the S-8333 Series of high-frequency PWM control switching regulator controllers. The series is designed for portable electronics and LCD power supplies, offering flexibility in setting oscillation frequency and duty ratio through external components while maintaining stability via adjustable phase compensation.
Replacement Considerations
The S-8333ABCB-T8T1G and S-8333AACB-T8T1G are similar parts within the same series. Verify if the specific output configuration and internal fixed parameters of these alternatives match the design requirements before substitution.
