TI TPS3823-33

Mfr. Part

TPS3823-33

Manufacturer

Luminary Micro/Texas Instruments. Y-IC is a quality distributor of Texas Instruments, and we will provide you with the best products and services.

Detailed Description

Precision voltage supervisor and reset IC for 3.3 V systems. Monitors supply voltage and asserts a reliable reset until rail is stable. Designed to protect microcontrollers, DSPs, FPGAs, and digital logic from brownouts and improper power sequencing. Some variants include watchdog input and manual reset pin for enhanced system monitoring.

Key Features

Accurate 3.3 V threshold monitoring for reliable power-on reset

Stable, glitch-free reset output with defined delay timing

Very low quiescent current for battery-powered designs

Optional watchdog input and manual reset (variant-dependent)

Small footprint, easy to place near the MCU or logic rail

Wide operating supply range (3.3 V class systems)

Compatible with common 3.3 V digital ecosystems

Key Advantages

Protects processors from brownout and unstable power, reducing lockups and field failures

Clean reset timing improves boot consistency and firmware robustness

Low power draw extends battery life and reduces heat

Simple integration: minimal external components, fast design-in

Compact package saves PCB space; ideal for dense layouts

Broad TI ecosystem and documentation support

Packaging

Type: Surface-mount IC, supplied in tape-and-reel for automated assembly

Material: Lead-free, RoHS-compliant molded plastic (epoxy) encapsulation with copper leadframe

Size: Compact small-outline footprint suitable for space-constrained boards

Pin configuration (typical for TPS3823 family): VDD (supply), GND, RESET output, WDI (watchdog input), MR (manual reset). Confirm pinout in the datasheet for your exact sub-variant.

Thermal characteristics: Low power dissipation; small-package thermal resistance typical of SMD supervisors. Refer to datasheet for exact RθJA and derating.

Electrical properties (overview): Precision threshold for 3.3 V rails, defined reset delay, integrated hysteresis for noise immunity, CMOS/TTL-compatible reset output. Refer to datasheet for exact limits and timings.

Available quantity: 2400 units currently listed

Lifecycle

Status: Generally active within Texas Instruments supervisor portfolio. No official discontinuation noted at the time of listing.

Alternatives and near-equivalents (verify exact pinout and reset polarity before substitution):

- TPS3820-33 (similar 3.3 V supervisor family option)

- TPS3822-33 (variant with different reset output behavior)

- TPS3825-33 (family option with related monitoring features)

- TPS3831 (nano-power supervisor; 3.3 V threshold options)

- TPS3808 (precision, adjustable/reset supervisor for flexible thresholds)

If you need drop-in or functionally equivalent replacements, or confirmation of last-time-buy/PCN status, please contact our sales team via the Y-IC website for the latest availability and cross-reference guidance.

Key Application Areas

Microcontroller and processor power-good/reset control in 3.3 V systems

Embedded systems, IoT nodes, and wearables

Networking gear, routers, modems, and storage devices

Industrial controllers and factory automation

Consumer electronics and smart home devices

FPGA and DSP boards requiring robust power sequencing

Datasheet

Our website hosts the most authoritative datasheet for TPS3823-33. For accurate electrical specifications, pinout, timing, and mechanical drawings, download the datasheet from this page now.

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