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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-8338AAGB-T8T1G 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. The internal oscillation frequency is adjustable up to 1.133 MHz via an external resistor on the ROSC pin. The maximum duty ratio is fixed at 88%. The device incorporates 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 reliability
- Features a low minimum operating voltage suitable for portable systems
- Allows flexible frequency adjustment through external components
Applications
- Power supply for LCD modules
- Portable electronic devices requiring low voltage operation
- Step-up DC-DC converter designs
Procurement Notes
Verify the specific suffix 'GB' against official ABLIC documentation to confirm package type and marking details. Ensure compatibility with standard TSSOP-8 footprint requirements. Confirm RoHS compliance status through current manufacturer declarations. Validate that the fixed duty ratio meets system design constraints before procurement.
Selection Notes
Select this component when a fixed maximum duty ratio is acceptable for the boost converter topology. Consider the S-8337 series if variable duty ratio control via an external resistor is required instead. Evaluate the need for external phase compensation components connected to the CC pin to ensure loop stability across the operating temperature range.
Part Context
This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8338 variant distinguishes itself by having a fixed maximum duty ratio, whereas the S-8337 series allows user-defined duty ratio settings. Both share similar core architectures including reference voltage circuits and error amplifiers.
Replacement Considerations
S-8338ABEC-T8T1G
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