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Texas Instruments TPS22934YZVR
- Part No.:
- TPS22934YZVR
- Manufacturer:
- Texas Instruments
- Package:
- 4-XFBGA, DSBGA
- Datasheet:
-
TPS22934YZVR.pdf
- Description:
- IC PWR SWITCH P-CHAN 1:1 4DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,040
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Product details
Overview
TPS22934YZVR from Texas Instruments is a single-channel, ultra-small load switch IC implementing a P-channel MOSFET for low-voltage power rail control. It operates from 1.5 V to 3.6 V input, delivers up to 1 A continuous current, features 63 mΩ rDS(ON) at 3.6 V, controlled 26 µs rise time, and integrated hysteresis on the ON pin (VTH+ = 2.35 V typ) - enabling reliable 1.8-V/2.8-V power-rail sequencing in Li-ion–powered portable electronics.
For engineers reviewing the TPS22934YZVR datasheet, TPS22934YZVR pinout, TPS22934YZVR application, or TPS22934YZVR equivalent, this page provides verified technical context, real-world timing behavior across voltage/temperature, quick-discharge design implications, thermal derating guidance, and validated alternative options for battery-powered system power management.
Technical Context
The TPS22934YZVR integrates a P-channel MOSFET with internally controlled slew rate (26 µs typical rise time at 3.6 V), built-in hysteresis (ΔVTH = 0.9 V typ), and an active 35-Ω output discharge transistor. Its UVLO threshold (0.95 V typ) ensures turnoff during brownout conditions.
It supports precise power-rail sequencing via VTH+/VTH− thresholds (2.35 V / 1.45 V typ), enabling deterministic turnon of downstream 1.8-V rails only after upstream 2.8-V supplies stabilize - without external timing components or microcontroller intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.5 V to 3.6 V - supports direct connection to Li-ion cells (2.7–4.2 V) with external regulation or LDO pre-biasing |
| rDS(ON) @ 3.6 V | 63 mΩ (typ) - yields ≤63 mV drop at 1 A, minimizing power loss and thermal rise in space-constrained layouts |
| Max Continuous Current | 1 A - rated over –40°C to 85°C ambient, with thermal derating required above 60°C per RθJA = 189.1°C/W |
| ON Pin Hysteresis | VTH+ = 2.35 V / VTH− = 1.45 V (typ) - prevents chatter during slow-rising enable signals in multi-rail sequencing |
| Rise Time (tr) | 26 µs (typ at VIN = 3.6 V) - limits inrush current to <1.5 A into 100 µF load capacitance, reducing input supply stress |
| Quick Output Discharge | 35 Ω (typ) pulldown - discharges VOUT to GND in <350 µs for 1 µF load, preventing floating outputs and latch-up risk |
| ESD Rating | ±3000 V HBM - meets IEC 61000-4-2 Level 2 for handheld device front-end robustness |
Pinout & Package
TPS22934YZVR uses a 0.90 mm × 0.90 mm, 4-pin DSBGA (YZV) package with bottom-side solder bumps. The ultra-compact footprint enables placement directly under processors or near battery connectors in thin-profile portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A2: VIN | Switch input | Primary power input; requires local 1-µF ceramic bypass capacitor to GND to suppress inrush-induced VIN dip |
| A1: VOUT | Switch output | Supplies downstream load; body diode orientation blocks reverse current from VOUT to VIN when disabled |
| B2: ON | Active-high enable input | Must be driven - never left floating; hysteresis eliminates need for external Schmitt trigger in GPIO-controlled sequencing |
| B1: GND | Power and signal reference | Single ground terminal; layout must minimize impedance between GND pin and system power plane to ensure stable UVLO and discharge operation |
Key Features
| Feature | Design Value |
|---|---|
| Hysteresis-enabled ON pin | VTH+/VTH− = 2.35 V / 1.45 V ensures clean, chatter-free switching during noisy or slowly ramped enable signals in multi-supply systems |
| Controlled slew rate | 26 µs rise time (VIN = 3.6 V) inherently limits peak inrush current without requiring external RC networks or gate resistors |
| Integrated quick discharge | 35-Ω internal pulldown discharges VOUT to GND within 350 µs (1 µF load), eliminating need for discrete discharge FET and saving PCB area |
| Low rDS(ON) at low VIN | 87 mΩ at 1.5 V input enables efficient operation even at Li-ion cell end-of-discharge, extending usable battery runtime |
| Ultra-small DSBGA-4 package | 0.90 mm × 0.90 mm footprint with 0.4-mm pitch allows placement in tight spaces - e.g., beneath camera modules or near SIM card slots |
Applications
| Smartphone Power Sequencing | Portable Medical Sensor Hub |
|---|---|
|
Use Scenario: Sequencing 2.8-V display bias and 1.8-V image sensor core rails from a shared Li-ion source. IC Role / Device Role / Timing Role: Load switch enforcing strict turnon order: 2.8-V rail must stabilize before TPS22934YZVR enables 1.8-V rail via hysteresis-triggered ON pin. Use Value: Prevents sensor latch-up and display artifacts by ensuring VDD_IO rises only after VDD_ANA is valid - no firmware or external timer required. |
Use Scenario: Isolating a low-power ECG analog front-end from main MCU domain during sleep mode. IC Role / Device Role / Timing Role: Single-pole power gate controlled by MCU GPIO; quick discharge ensures analog node settles to 0 V within 300 µs upon disable. Use Value: Eliminates cross-talk and leakage paths during standby, improving signal integrity and reducing quiescent current to <5 µA. |
| POS Terminal Battery Backup Switchover | Wireless Earbud Charging Case |
|
Use Scenario: Seamless transition from USB input to internal Li-ion during cable disconnect in retail point-of-sale terminals. IC Role / Device Role / Timing Role: Load switch managing 3.3-V system rail; UVLO (0.95 V) disables output before battery reaches unsafe depletion voltage. Use Value: Protects battery from deep discharge while maintaining uninterrupted operation down to 1.5 V input - critical for transaction completion. |
Use Scenario: Enabling 1.2-V Bluetooth SoC supply only when charging case battery exceeds 3.0 V, avoiding brownout during low-charge states. IC Role / Device Role / Timing Role: Voltage-threshold gate using ON pin hysteresis to assert enable only when VBAT > 3.0 V, with 0.7-V hysteresis margin. Use Value: Prevents SoC reset or RF instability during charging; eliminates need for external voltage supervisor IC and associated BOM cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS22919DCKR | Lower rDS(ON) (42 mΩ @ 3.6 V), but no hysteresis; requires external pullup for clean enable | Lacks built-in sequencing capability - unsuitable for autonomous rail sequencing without added logic | Choose when lowest conduction loss is critical and enable signal is already noise-filtered/schmitt-triggered |
| AP22916AW5-7 | Wider input range (0.5–5.5 V), 70 mΩ rDS(ON), no integrated discharge FET | Requires external 100-kΩ pulldown resistor for output discharge - adds component count and board area | Prefer when supporting sub-1.5-V logic rails or mixed-voltage systems where TPS22934YZVR's 1.5-V min is limiting |
Compared with TPS22934YZVR, TPS22919DCKR offers lower loss but demands external hysteresis for sequencing, while AP22916AW5-7 extends voltage range at the cost of added discharge circuitry - making TPS22934YZVR optimal for compact, self-contained 1.5–3.6-V sequencing in portable devices.
Availability
TPS22934YZVR is available at Aetrix Electronics and suitable for smartphone power sequencing, portable medical sensor hubs, POS terminal battery switchover, and wireless earbud charging cases requiring stable component supply and long-term production continuity.
Supply support for TPS22934YZVR 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 leader delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The TPS229xx family was designed specifically for ultra-compact, low-voltage power gating in battery-powered portable equipment - emphasizing minimal footprint, controlled inrush, and autonomous sequencing without firmware dependency.
FAQ
What is the minimum input voltage required for reliable operation of the TPS22934YZVR?
The TPS22934YZVR is specified for continuous operation from 1.5 V to 3.6 V. At 1.5 V input, it maintains 1-A capability with rDS(ON) = 87 mΩ (max), and its UVLO releases at 0.95 V (typ), allowing safe turnoff before Li-ion cells reach 2.5-V cutoff. Operation below 1.5 V is not characterized and may result in undefined behavior or failure to meet timing specs.
Does the TPS22934YZVR require an external pullup resistor on the ON pin?
No - the TPS22934YZVR does not require an external pullup on the ON pin. Its internal hysteresis (VTH+ = 2.35 V, VTH− = 1.45 V) and low ON-pin bias current (<1.5 µA) allow direct connection to GPIOs or open-drain drivers. Leaving the ON pin floating is prohibited and will cause unpredictable switching behavior.
How does the quick output discharge function work in the TPS22934YZVR?
When the ON pin falls below VTH− (1.45 V typ), the TPS22934YZVR disables the main P-FET and activates an internal 35-Ω NMOS pulldown between VOUT and GND. This discharges a 1-µF load to <10% of VIN in ~350 µs, preventing floating outputs that could cause backfeeding, latch-up, or false wakeups in downstream circuitry.
Can the TPS22934YZVR be used with input capacitance larger than 1 µF?
Yes - the TPS22934YZVR supports input capacitors larger than 1 µF. While 1 µF is recommended to limit VIN dip, higher values (e.g., 4.7 µF or 10 µF) further reduce transient droop during inrush. However, increasing CIN beyond 10× COUT offers diminishing returns and may lengthen effective turnon time due to RC filtering of the ON signal.
What thermal derating applies to the TPS22934YZVR at 85°C ambient temperature?
At 85°C ambient, the TPS22934YZVR's maximum continuous current must be reduced from 1 A to approximately 0.65 A. This is calculated using RθJA = 189.1°C/W and TJ(max) = 125°C: PD(max) = (125 − 85) / 189.1 ≈ 211 mW → IMAX = √(PD/rDS(ON)) ≈ √(0.211 / 0.087) ≈ 0.65 A (using worst-case rDS(ON) at 1.5 V).
TPS22934YZVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 4-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:
- P-Channel
- Interface:
- On/Off
- Voltage - Load:
- 1.5V ~ 3.6V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 1A
- Rds On (Typ):
- 63mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge, Slew Rate Controlled
- Fault Protection:
- UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-DSBGA (0.88x0.88)
TPS22934YZVR FAQ
1.How can I place an order for TPS22934YZVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS22934YZVR 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 TPS22934YZVR reliable?
The price and inventory of TPS22934YZVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS22934YZVR is usually 5 days.
3.What payment methods are accepted for TPS22934YZVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS22934YZVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS22934YZVR?
TPS22934YZVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS22934YZVR 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 TPS22934YZVR?
For technical support, including TPS22934YZVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS22934YZVR requirements.
6.How does Aetrix verify that TPS22934YZVR is sourced from the original manufacturer or authorized distributors?
All TPS22934YZVR 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 TPS22934YZVR meets industry standards.
7.What is the process for return or replacement of TPS22934YZVR?
All TPS22934YZVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS22934YZVR, 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 TPS22934YZVR part is unused and in its original packaging.
Return procedure for TPS22934YZVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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