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Texas Instruments TPS22924BYZT
- Part No.:
- TPS22924BYZT
- Manufacturer:
- Texas Instruments
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
TPS22924BYZT.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,079
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Product details
Overview
TPS22924BYZT from Texas Instruments is a single-channel, 2-A ultra-low-RON load switch with integrated NMOS FET, charge pump, and controlled slew-rate turn-on. It operates from 0.75 V to 3.6 V input, delivers 18.3 mΩ RON at 3.6 V, features 96 µs rise time, and includes quick-output-discharge functionality. It is used in portable power rail sequencing for smartphones and medical devices.
For engineers reviewing the TPS22924BYZT datasheet, TPS22924BYZT pinout, TPS22924BYZT application, or TPS22924BYZT equivalent, key selection criteria include input voltage range (0.75–3.6 V), on-resistance vs. VIN dependency, controlled inrush current management, and DSBGA-6 package compatibility with high-density PCB layouts.
Technical Context
The TPS22924BYZT integrates an N-channel MOSFET with an internal charge pump that enables full enhancement across its 0.75–3.6 V input range, eliminating external gate-drive circuitry. Its 96 µs typical rise time at 3.6 V is fixed by internal slew-rate control to limit inrush current into capacitive loads.
It features active output pulldown (1250 Ω) during turn-off to discharge downstream capacitance to ~10% of rail voltage before disconnecting, minimizing standby leakage. The ON pin accepts low-threshold logic (VIH as low as 0.6 V at VIN = 2.5 V), enabling direct interface with 1.2-V/1.8-V GPIOs without level shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.75 V to 3.6 V - supports single-cell Li-ion, Li-poly, and regulated low-voltage rails without external biasing |
| Continuous Switch Current | 2 A - sustains full-load operation under worst-case thermal conditions (–40°C to 85°C) |
| On-Resistance (RON) | 18.3 mΩ at VIN = 3.6 V - yields ≤73 mV drop at 4 A peak, critical for low-voltage rail integrity |
| Rise Time (tr) | 96 µs at VIN = 3.6 V - limits inrush current to <40 mA with 1 µF output capacitance |
| Shutdown Supply Current | 3.5 µA - minimizes battery drain in always-on systems during sleep mode |
| Output Pulldown Resistance | 1250 Ω - discharges VOUT to ~10% of rail within microseconds, preventing floating outputs |
| ESD Rating (HBM) | ±5000 V - meets industrial handling requirements without additional protection circuitry |
Pinout & Package
TPS22924BYZT uses a 0.9 mm × 1.4 mm, 0.5-mm pitch DSBGA-6 (YZ) package with solder bumps on bottom side. Pin 1 identifier denotes Pb-free composition (•). Backside coating is optional (not present on YZ variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (A2, B2) | Switch input | Primary power input; requires local 1-µF ceramic bypass capacitor to GND to suppress inrush-induced supply dip |
| VOUT (A1, B1) | Switch output | Powered rail delivered to load; must be decoupled per system requirements; body diode prevents reverse current flow |
| GND (C1) | Ground reference | Common return path for switch current and control logic; connects to PCB ground plane for thermal and EMI performance |
| ON (C2) | Active-high enable | Direct GPIO interface; VIH min = 0.6 V (at VIN ≥ 2.5 V); must not float - tie to GND or controller for defined state |
Key Features
| Feature | Design Value |
|---|---|
| Integrated charge pump | Enables full NMOS enhancement down to 0.75 V input, eliminating need for external gate driver or higher-bias supply |
| Controlled slew-rate turn-on | Fixed 96 µs rise time at 3.6 V ensures predictable inrush current (<40 mA into 1 µF), simplifying power integrity analysis |
| Quick output discharge (QOD) | 1250 Ω internal pulldown discharges VOUT rapidly upon turn-off, avoiding latch-up or undefined logic states in downstream ICs |
| Low threshold ON input | Supports 1.2-V/1.8-V microcontroller GPIOs directly - no level shifter required - reducing BOM count and board area |
| Ultra-small DSBGA-6 footprint | 0.9 mm × 1.4 mm area saves >70% space vs. comparable SOT-23-6 switches, enabling compact portable designs |
Applications
| Smartphones | Portable Medical Devices |
|---|---|
Use Scenario: Powering camera module, display backlight, or USB PHY only when active to extend battery life. IC Role / Device Role: Load switch controlling isolated power domain with precise inrush control and fast shutdown discharge. Use Value: Prevents brownout during camera flash activation and eliminates floating VOUT that could corrupt sensor data during sleep. |
Use Scenario: Enabling ECG front-end analog circuitry only during measurement cycles in handheld monitors. IC Role / Device Role: Low-leakage (3.5 µA) power gate ensuring sub-µA standby current compliance for FDA-cleared battery runtime claims. Use Value: Extends single-charge operation beyond 72 hours by eliminating parasitic load-path leakage through unswitched rails. |
| Notebooks / Tablet PCs | Point-of-Sale Terminals |
Use Scenario: Sequencing SSD power after main CPU rail stabilizes to avoid reset glitches during boot. IC Role / Device Role: Controlled-power delivery element with fixed 96 µs ramp, synchronized via platform controller hub GPIO. Use Value: Guarantees clean VOUT ramp matching SoC power-good timing windows, eliminating firmware-level retry logic. |
Use Scenario: Isolating barcode scanner or contactless payment module power to meet EMVCo transient immunity requirements. IC Role / Device Role: ESD-hardened (±5 kV HBM) load switch placed at board edge to protect sensitive interface ICs from user-handling events. Use Value: Eliminates need for discrete TVS + RC filter on each peripheral rail, reducing cost and layout complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS22924CYZPR | 800 µs rise time (vs. 96 µs), same RON, identical package | Better suited for ultra-low-inrush scenarios (e.g., >10 µF output caps) where slower ramp is acceptable | Select TPS22924CYZPR only if design requires <5 mA inrush current; otherwise TPS22924BYZT offers faster response. |
| TPS22919YFPR | 1.2-A rating, 34 mΩ RON at 3.3 V, same DSBGA-6 size, 130 µs rise time | Limited to lower-current peripherals (e.g., Bluetooth modules); not suitable for 2-A camera or display rails | Choose TPS22919YFPR only for cost-sensitive, sub-1.2-A applications where higher RON voltage drop is tolerable. |
Compared with TPS22924CYZPR and TPS22919YFPR, the TPS22924BYZT uniquely balances 2-A capability, 18.3-mΩ conduction loss, and 96-µs controlled ramp - making it optimal for mid-power portable subsystems requiring both efficiency and inrush safety.
Availability
TPS22924BYZT is available at Aetrix Electronics and suitable for smartphone power sequencing, portable medical device subsystem control, and point-of-sale terminal peripheral isolation requiring stable component supply and long-term production continuity.
Supply support for TPS22924BYZT 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 specializing in analog, embedded processing, and connectivity technologies, with over 90 years of innovation in power management ICs.
The TPS22924x family was designed specifically for space-constrained, battery-powered applications requiring ultra-low quiescent current, precise inrush control, and minimal external components - targeting portable consumer and medical electronics.
FAQ
What is the maximum continuous current rating for the TPS22924BYZT?
The TPS22924BYZT is rated for 2 A maximum continuous switch current across the full operating temperature range of –40°C to 85°C. This rating assumes proper PCB thermal design per the datasheet's RθJA = 123°C/W specification and adequate copper pour on the GND pad. Exceeding 2 A risks thermal shutdown or accelerated wear.
Does the TPS22924BYZT require an external pull-up resistor on the ON pin?
No, the TPS22924BYZT does not require an external pull-up resistor on the ON pin. Its ON input has internal logic-level compatibility and must be driven actively high or low - leaving it floating is prohibited. A direct connection to a microcontroller GPIO or open-drain driver suffices; no external biasing is needed.
How does the output pulldown function work in the TPS22924BYZT?
The TPS22924BYZT integrates a 1250-Ω pulldown transistor that activates automatically when the ON pin is deasserted. It discharges VOUT to approximately 10% of the rail voltage, then disconnects to minimize shutdown current. This prevents floating outputs and avoids unintended wake-up of downstream logic, and no external discharge circuitry is required.
Can the TPS22924BYZT operate below 0.75 V input?
No, the TPS22924BYZT is not specified or guaranteed to operate below 0.75 V input. Its absolute minimum input voltage is 0.75 V per Recommended Operating Conditions, and RON increases sharply below this threshold. Operation below 0.75 V may result in incomplete turn-on, excessive conduction loss, or unpredictable behavior.
Is the TPS22924BYZT pin-compatible with other TPS22924x variants?
Yes, the TPS22924BYZT shares identical pinout, package dimensions (DSBGA-6 YZ), and footprint with all TPS22924x variants including TPS22924CYZPR and TPS22924BYZPRB. Mechanical and electrical pin mapping is fully consistent - only timing (rise time) and backside coating differ between variants.
TPS22924BYZT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 6-XFBGA, DSBGA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 0.75V ~ 3.6V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 2A
- Rds On (Typ):
- 18.3mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge, Slew Rate Controlled
- Fault Protection:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA
TPS22924BYZT FAQ
1.How can I place an order for TPS22924BYZT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS22924BYZT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS22924BYZT reliable?
The price and inventory of TPS22924BYZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS22924BYZT is usually 5 days.
3.What payment methods are accepted for TPS22924BYZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS22924BYZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS22924BYZT?
TPS22924BYZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS22924BYZT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS22924BYZT?
For technical support, including TPS22924BYZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS22924BYZT requirements.
6.How does Aetrix verify that TPS22924BYZT is sourced from the original manufacturer or authorized distributors?
All TPS22924BYZT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS22924BYZT meets industry standards.
7.What is the process for return or replacement of TPS22924BYZT?
All TPS22924BYZT units undergo pre-shipment inspection (PSI). If there is an issue with TPS22924BYZT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS22924BYZT part is unused and in its original packaging.
Return procedure for TPS22924BYZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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