TS3003ITD1033

Overview

The TS3003ITD1033 is a single-supply oscillator/timer from Silicon Labs, operating within a voltage range of 1.55V to 5.25V. It consumes an ultra-low supply current of 1.9µA at 25kHz and supports output frequencies between 9kHz and 300kHz with a period accuracy of 3%. The device features separate FOUT and PWMOUT outputs, both driven by push-pull stages with 160Ω resistance. Frequency is set via a single external resistor on the RSET pin, while pulse width modulation is controlled through the CPWM pin and PWM_CNTRL input.

Feature Summary

• Ultra-low power consumption: 1.9µA typical at 25kHz
• Single-resistor frequency programming from 9kHz to 300kHz
• Separate buffered FOUT and anti-phase PWMOUT signals
• Low-profile 10-pin TDFN package (3x3mm) with exposed paddle

Applications

• Portable and battery-powered equipment
• Micropower clock generation
• Sequential timing circuits
• Pulse-width modulation control
• Replacement for crystal and ceramic oscillators

Procurement Notes

Verify component authenticity through authorized channels as counterfeit risks exist for legacy silicon components. Confirm that the specific ordering suffix matches the required tape and reel packaging configuration. Ensure compliance with RoHS directives and lead-free manufacturing standards specified by the manufacturer.

Selection Notes

Select this component when low quiescent current and minimal PCB footprint are critical constraints. Use the RSET pin for precise frequency setting and the CPWM pin for duty cycle adjustment. Ensure load capacitance is minimized to prevent increased transient power consumption during operation.

Part Context

This part belongs to the TS3003 series of CMOS timers, designed as a compact alternative to traditional 555-timer-based products. It offers significant reductions in both PCB area and power consumption compared to industry-standard discrete timer solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate compatibility based on supply voltage ranges, output drive capabilities, and package dimensions if cross-referencing with other oscillator families.