Texas Instruments TPS22924CYZPRB

Overview

TPS22924CYZPRB from Texas Instruments is a single-channel, 2-A ultra-low-R_ON load switch in a 0.9 mm × 1.4 mm DSBGA-6 package, featuring 18.3 mΩ on-resistance at 3.6 V input, controlled 800 µs rise time to limit inrush current, and integrated quick-output-discharge transistor. It operates across 0.75 V–3.6 V input voltage and delivers stable power sequencing in space-constrained portable electronics.

For engineers reviewing the TPS22924CYZPRB datasheet, TPS22924CYZPRB pinout, TPS22924CYZPRB application, or TPS22924CYZPRB equivalent, key selection criteria include its 800 µs slew-controlled turn-on, 1250 Ω internal pulldown for fast rail discharge, low 3.5 µA shutdown current, and compatibility with 1.2 V/1.8 V GPIO control signals in battery-powered systems.

Technical Context

The TPS22924CYZPRB integrates an N-channel MOSFET with an internal charge pump to maintain low R_ON across its full 0.75 V–3.6 V input range, enabling operation down to sub-1-V supply rails. Its 800 µs typical rise time (at VIN = 3.6 V) is fixed by internal slew-rate control logic, eliminating external RC tuning while ensuring predictable inrush current limiting.

It features active output pulldown that discharges VOUT to ~10% of rail before disconnecting, reducing shutdown leakage. The ON pin accepts low-threshold logic (VIH as low as 0.6 V at VIN ≥ 2.5 V), supporting direct interface with modern low-voltage microcontrollers without level shifting.

Key Specifications

Pinout & Package

TPS22924CYZPRB uses a 0.9 mm × 1.4 mm, 0.5-mm pitch DSBGA-6 package with backside coating for enhanced mechanical reliability in flex-circuit applications. The package is RoHS-compliant, Pb-free, and rated MSL-1 (260°C reflow unlimited).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar load switch applications.

Compared with TPS22924CYZPRB, the TPS22924BYZPRB offers faster switching for timing-critical rails but less inrush suppression, while the TPS22965YFPR provides higher current headroom at the cost of size and voltage range mismatch-neither is pin-compatible, but both serve adjacent design requirements.

Availability

TPS22924CYZPRB is available at Aetrix Electronics and suitable for smartphone power sequencing, portable medical sensor nodes, point-of-sale terminal displays, and notebook USB-C peripheral ports requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for TPS22924CYZPRB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets since 1930.

The TPS22924x family was designed specifically for ultra-compact, low-leakage power gating in battery-powered portable devices-emphasizing sub-1-V operation, controlled slew, and integrated discharge to reduce BOM count and PCB area.

FAQ

What is the maximum input voltage rating for the TPS22924CYZPRB?

The TPS22924CYZPRB has an absolute maximum input voltage (VIN) rating of 4 V, with recommended operating range from 0.75 V to 3.6 V. Exceeding 4 V risks permanent damage per the Absolute Maximum Ratings table. For sustained reliability, operation above 3.6 V is not advised-even briefly-due to potential gate oxide stress and increased R_ON drift. The TPS22924CYZPRB is optimized for single-cell Li-ion, coin-cell, and regulated PMIC outputs within its specified window.

Does the TPS22924CYZPRB require an external pull-up resistor on the ON pin?

No, the TPS22924CYZPRB does not require an external pull-up resistor on the ON pin. Its input structure includes an internal weak pull-down, and the ON pin is designed for direct connection to low-voltage GPIOs (1.2 V, 1.8 V, 2.5 V, or 3.3 V). Leaving the ON pin floating is prohibited per datasheet guidance, but tying it directly to a controller output suffices-no external components are needed for proper logic-level interfacing with the TPS22924CYZPRB.

How does the output pulldown function in the TPS22924CYZPRB during shutdown?

The TPS22924CYZPRB activates its internal 1250 Ω pulldown transistor when the ON pin is driven low, discharging the VOUT rail to approximately 10% of VIN within milliseconds. Once VOUT drops below ~0.36 V (at VIN = 3.6 V), the pulldown automatically disconnects to minimize standby current. This two-stage action ensures rapid rail collapse without sustaining unnecessary leakage-critical for low-power wake-up sequences in the TPS22924CYZPRB's target applications.

Can the TPS22924CYZPRB operate reliably at 0.8 V input voltage?

Yes, the TPS22924CYZPRB is fully characterized and guaranteed to operate at 0.75 V minimum input voltage. At VIN = 0.8 V, its R_ON increases to ~22.5 mΩ (interpolated from 0.75 V/22.7 mΩ and 1.2 V/19.4 mΩ data), supporting up to ~1.8 A continuous current with acceptable thermal rise on standard 2-layer PCBs. The ON pin remains functional with VIH as low as 0.4 V at VIN = 0.75 V–2.49 V, making the TPS22924CYZPRB suitable for deep-discharge battery scenarios.

Is the TPS22924CYZPRB pin-compatible with the TPS22924BYZPRB?

Yes, the TPS22924CYZPRB is pin-compatible and footprint-compatible with the TPS22924BYZPRB: both use identical DSBGA-6 (YZP) packaging, identical pinout (GND, ON, VOUT, VIN), and share all electrical interface specifications except rise time. The TPS22924CYZPRB's 800 µs rise time versus the TPS22924BYZPRB's 96 µs is the sole functional difference-no PCB redesign or layout change is required when substituting between these two variants of the TPS22924CYZPRB family.