Texas Instruments TPS22913CYZVT

Overview

TPS22913CYZVT from Texas Instruments is an ultra-small, single-channel load switch IC featuring a P-channel MOSFET with 61 mΩ typical on-resistance at 3.3 V, full-time reverse current protection (VRCP = 44 mV), and integrated quick output discharge (150 Ω pull-down). It operates from 1.4 V to 5.5 V input and delivers up to 2 A continuous current, serving as a power-path control device in portable USB peripherals and low-voltage rail sequencing.

For engineers reviewing the TPS22913CYZVT datasheet, TPS22913CYZVT pinout, TPS22913CYZVT application, or TPS22913CYZVT equivalent, key selection criteria include controlled slew-rate (660 µs rise time), active-high enable logic, guaranteed reverse-current response within 10 µs, and WCSP package compatibility with high-density PCB layouts.

Technical Context

The TPS22913CYZVT integrates a P-channel MOSFET with programmable turn-on slew rate (660 µs typical at 3.3 V) to suppress inrush current during hot-swap events. Its reverse current protection circuit continuously monitors VOUT–VIN differential and disables the pass FET within 10 µs when VRCP (44 mV) is exceeded - independent of ON pin state.

It features under-voltage lockout (UVLO threshold: 0.50 V to 1.2 V), <1 µA off-state supply current, and a dedicated 150-Ω internal output discharge path activated upon disable. The device uses no external components for basic operation and supports GPIO-compatible control across 1.2–5.5 V logic levels.

Key Specifications

Pinout & Package

TPS22913CYZVT uses a 4-pin wafer-chip-scale package (YZV): 0.9 mm × 0.9 mm, 0.5-mm pitch, 0.5-mm height. No exposed thermal pad; soldered directly to PCB via bottom bumps.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS22913BYZVT and TPS22912CYZVT, the TPS22913CYZVT uniquely balances moderate slew control (660 µs) with guaranteed output discharge - making it optimal for USB-compliant, space-constrained portable systems needing both inrush suppression and fast VOUT decay.

Availability

TPS22913CYZVT is available at Aetrix Electronics and suitable for notebook computers, portable medical equipment, and smartphone camera modules requiring stable component supply, consistent WCSP packaging, and guaranteed production lifecycle support through 2028.

Supply support for TPS22913CYZVT 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.

The TPS2291x family was designed specifically for ultra-compact, low-power load switching in portable and battery-powered systems - emphasizing minimal board area, sub-µA quiescent current, and integrated protection features without external components.

FAQ

What is the maximum continuous current rating for the TPS22913CYZVT?

The TPS22913CYZVT supports a maximum continuous switch current of 2 A across its full operating temperature range (–40°C to 85°C). This rating assumes proper PCB thermal design with ≥2 cm² of 1-oz copper on the GND layer beneath the YZV package, as specified in TI's thermal characterization data (R_θJB = 36.8°C/W). Exceeding 2 A may trigger thermal shutdown or degrade long-term reliability.

Does the TPS22913CYZVT provide reverse current protection when disabled?

Yes, the TPS22913CYZVT provides full-time reverse current protection regardless of ON pin state. Its internal comparator continuously monitors VOUT–VIN differential and disables the pass FET within 10 µs if the reverse voltage exceeds 44 mV (VRCP), even when the ON pin is held low. This prevents backfeed from downstream capacitors or batteries into the upstream supply rail.

What is the function of the ON pin on the TPS22913CYZVT?

The ON pin on the TPS22913CYZVT is an active-high digital control input that enables or disables the internal P-channel MOSFET. When driven high (≥1.1 V at VIN = 1.4–5.5 V), the switch turns on with controlled slew rate; when driven low (≤0.4 V), the switch turns off and activates the 150-Ω output discharge path. The pin must never be left floating and is compatible with standard 1.2–5.5 V GPIO outputs.

How does the TPS22913CYZVT differ from the TPS22913BYZVT?

The TPS22913CYZVT and TPS22913BYZVT share identical package, r_ON, VRCP, and output discharge resistance, but differ in slew rate: TPS22913CYZVT has 660 µs typical rise time, while TPS22913BYZVT has 66 µs. This makes the 'C' variant better for inrush-sensitive applications (e.g., USB), whereas the 'B' variant suits faster enable requirements (e.g., memory rails) where higher di/dt is acceptable.

Is an input capacitor required for stable operation of the TPS22913CYZVT?

Yes, TI recommends a minimum 1-µF ceramic capacitor (C_IN) placed between VIN and GND, located as close as possible to the TPS22913CYZVT pins. This capacitor mitigates input voltage droop caused by inrush current during turn-on, especially into large output capacitance or short-circuit loads. For high-current applications (>1.5 A), increasing C_IN to 10 µF improves stability and reduces ripple on the upstream supply rail.