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S-8337ACHC-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)：89%
- 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-8337ACHC-T8T1G is a CMOS step-up switching regulator controller from the S-8337 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. The device supports an internal oscillation frequency adjustable up to 1.133 MHz via an external resistor on the ROSC pin. It features a maximum duty ratio controllable through an external resistor on the RDuty pin. The component is housed in an 8-pin TSSOP package with a width of 4.40 mm and is rated for an operating temperature range of -40°C to 85°C.
Feature Summary
- Integrates reference voltage, oscillator, error amplifier, PWM controller, UVLO, and timer latch short-circuit protection.
- Enables flexible system design through externally adjustable oscillation frequency and maximum duty ratio.
- Supports phase compensation and gain adjustment via external components connected to the CC pin.
Applications
- Power supply for LCD panels
- Portable systems requiring low voltage operation
Procurement Notes
Verify the specific suffix HC against official datasheets to confirm exact electrical tolerances and factory settings. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Ensure ordering quantities align with manufacturer reel specifications. Validate that the TSSOP-8 footprint matches the target PCB layout constraints.
Selection Notes
Select this controller when designing boost converters requiring high-frequency operation up to 1.2 MHz. It is suitable for applications needing adjustable duty cycles and frequency parameters. Consider the 1.8 V minimum operating voltage for battery-powered designs. Evaluate external component requirements for ROSC, RDuty, and CC pins to meet stability targets.
Part Context
This component belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The series is designed for step-up applications where compact size and low input voltage are critical. The S-8337 variant specifically allows user-defined maximum duty ratios, distinguishing it from fixed-duty counterparts.
Replacement Considerations
S-8337ABEC-T8T1G and S-8337ACCC-T8T1G are documented members of the same series. Verify functional equivalence regarding duty ratio adjustability and pinout compatibility before substitution.
