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Toshiba Semiconductor and Storage TCK2065G,LF
- Part No.:
- TCK2065G,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 6-UFBGA, WLCSP
- Datasheet:
-
TCK2065G,LF.pdf
- Description:
- IC PWR SWITCH P-CHAN 1:1 WCSP6E
- Quantity:
- Payment:
- Shipping:
Inventory:490
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Product details
Overview
TCK2065G,LF from Toshiba Electronic Devices & Storage Corporation is a load switch IC with integrated overcurrent limiting, thermal shutdown, output auto-discharge, true reverse current blocking, and under-voltage lockout functions. It delivers 1110 mA output current limit, 31 mΩ typical ON resistance at 5.0 V input, and 25 μA quiescent current-designed for power rail control in space-constrained portable electronics.
For engineers reviewing the TCK2065G,LF datasheet, TCK2065G,LF pinout, TCK2065G,LF application, or TCK2065G,LF equivalent, this page provides verified functional specifications, WCSP6E package layout, real-world use scenarios in battery-powered systems, and validated alternative parts for supply continuity and design flexibility.
Technical Context
The TCK2065G,LF integrates a P-channel MOSFET power switch with fold-back overcurrent protection, active-high control logic, and Schmitt-triggered CONTROL input with internal pull-down. Its true reverse current blocking operates continuously regardless of switch state, ensuring full-time protection against backflow from VOUT to VIN.
Thermal shutdown activates at ~170°C junction temperature with 20°C hysteresis, while UVLO engages below 0.82 V (rising) and releases above 0.77 V (falling). The device supports input voltages from 1.4 V to 5.5 V and maintains stable operation across −40°C to +85°C ambient range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current Limit | 1110 mA - sets maximum safe load current before fold-back limiting engages |
| ON Resistance | 31 mΩ (typ.) at VIN = 5.0 V - minimizes conduction loss and voltage drop in high-current paths |
| Quiescent Current | 25 μA (typ.) at VIN = 5.5 V - enables ultra-low standby power in always-on subsystems |
| Input Voltage Range | 1.4 V to 5.5 V - supports Li-ion, Li-poly, and multi-cell battery rails and regulated 3.3 V/5 V supplies |
| Reverse Blocking Threshold | 35 mV - blocks reverse current flow when VOUT exceeds VIN by ≥35 mV |
| UVLO Threshold | 0.82 V (rising), 0.77 V (falling) - prevents erratic switching during brown-out conditions |
| Thermal Shutdown | 170°C (typ.) with 20°C hysteresis - protects against sustained overload or poor heatsinking |
Pinout & Package
Package: WCSP6E (0.8 mm × 1.2 mm, thickness 0.55 mm), ultra-compact wafer-level chip-scale package with 0.4 mm pitch and 1 mg typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (A1, B1) | Power output terminal | Dual-pad configuration lowers parasitic inductance and improves current handling for high-speed load switching |
| VIN (A2, B2) | Power input terminal | Dual-pad layout reduces IR drop and enhances thermal dissipation from input path |
| GND (C1) | Ground reference | Single low-impedance return path for internal protection circuitry and control logic |
| CONTROL (C2) | Active-high enable input | Schmitt-triggered input with internal MΩ-range pull-down ensures defined OFF state during floating or unconnected conditions |
Key Features
| Feature | Design Value |
|---|---|
| True Reverse Current Blocking | Continuous protection independent of switch state-blocks backflow from VOUT to VIN even when Q1 is OFF |
| Inrush Current Reduction | Controlled slew rate limits dV/dt at turn-on, preventing supply rail collapse during capacitive load charging |
| Output Auto-Discharge | Internal discharge FET activates on CONTROL low, rapidly draining VOUT capacitance to prevent residual voltage hold-up |
| Under-Voltage Lockout | Hysteresis-enabled UVLO prevents oscillation near threshold; ensures clean startup only above 0.82 V |
| Thermal Shutdown with Hysteresis | Self-recovering protection that disables output above 170°C and re-enables only after cooling to ≤150°C |
Applications
| Smartphone Power Rail Control | Wearable Sensor Subsystem Enable |
|---|---|
Use Scenario: Enabling/disabling camera module or RF front-end power rail in LTE/5G smartphones. IC Role / Device Role / Timing Role: Load switch managing isolated 3.3 V or 5 V domain with fast turn-on (<40 μs) and reverse current isolation. Use Value: Prevents backfeed into main PMIC during hot-swap events and eliminates need for external discharge resistor. | Use Scenario: Power gating inertial measurement unit (IMU) or optical heart-rate sensor in fitness bands. IC Role / Device Role / Timing Role: Low-quiescent-current (25 μA) switch enabling sub-μA sleep mode compliance. Use Value: Extends battery life by eliminating leakage through disabled peripherals without sacrificing wake-up responsiveness. |
| USB-C Peripheral Power Delivery | IoT Edge Node Battery Protection |
Use Scenario: Controlling VBUS-powered accessories like dongles or docking adapters compliant with USB Type-C PD negotiation. IC Role / Device Role / Timing Role: Overcurrent-limited (1110 mA) switch enforcing safe current draw during enumeration and data transfer phases. Use Value: Meets USB PD fault response timing requirements while protecting host port from sustained overloads. | Use Scenario: Isolating backup battery from main system during deep-sleep cycles in LPWAN sensors. IC Role / Device Role / Timing Role: Reverse-current-blocking switch preventing main battery drain via backup rail leakage. Use Value: Ensures >10-year shelf life by limiting reverse leakage to <2 μA across full temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TCK22951G,LF | 740 mA output current limit; identical package, pinout, and feature set except lower ICL | Suitable where lower current capability suffices and tighter thermal budget exists | Select when system peak load stays below 740 mA and board layout reuse is critical |
| TPS22916BYFPR | TI part: 2 A limit, 27 mΩ RON, 0.5 μA IQ(OFF), but no true reverse blocking or UVLO | Lacks full-time reverse current protection and brown-out immunity; requires external UVLO or discharge circuit | Choose for higher current or lower IQ(OFF) needs, accepting added external components for missing protections |
Compared with TCK2065G,LF, TCK22951G,LF offers reduced current capacity in the same footprint for cost-sensitive designs, while TPS22916BYFPR trades integrated protections for higher performance specs-requiring additional discrete components to match TCK2065G,LF's safety and reliability features.
Availability
TCK2065G,LF is available at Aetrix Electronics and suitable for smartphone power management, wearable sensor subsystems, USB-C peripheral enablement, and IoT edge node battery protection requiring stable component supply and long-term lifecycle support.
Supply support for TCK2065G,LF 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
Toshiba Electronic Devices & Storage Corporation designs high-reliability semiconductor solutions for consumer, industrial, and automotive markets, with emphasis on power efficiency and integration.
The TCK22xxxG series-including TCK2065G,LF-is engineered specifically for compact, battery-powered devices needing robust power sequencing, fault protection, and minimal board area consumption.
FAQ
What is the maximum continuous output current supported by the TCK2065G,LF?
The TCK2065G,LF features a built-in overcurrent limit function set to 1110 mA (typical). This is not a sustained DC rating but a fold-back protection threshold-when exceeded, the device reduces output current to prevent damage. Continuous operation should remain within derated limits per thermal design guidelines in the Toshiba Semiconductor Reliability Handbook.
Does the TCK2065G,LF require an external pull-down resistor on the CONTROL pin?
No, the TCK2065G,LF includes an internal pull-down resistor between CONTROL and GND, ensuring a defined OFF state when the pin is left unconnected or floating. This eliminates the need for external biasing and simplifies PCB layout-especially important in ultra-dense portable designs where every component counts.
How does the true reverse current blocking function operate in the TCK2065G,LF?
The TCK2065G,LF implements true reverse current blocking (TRCB) using an auxiliary circuit that actively monitors VOUT–VIN differential. When VOUT exceeds VIN by ≥35 mV, TRCB engages regardless of the main switch state-blocking reverse current flow even when the power MOSFET is OFF. This provides full-time protection against backfeed in multi-rail systems.
What is the typical turn-on delay time for the TCK2065G,LF under standard test conditions?
Under standard test conditions (VIN = 5.0 V, RL = 500 Ω, CL = 0.1 μF), the TCK2065G,LF exhibits a typical turn-on delay (tON) of 40 μs. This value remains stable across the full operating temperature range (−40°C to +85°C), supporting predictable power sequencing in real-time embedded applications.
Is the TCK2065G,LF compatible with 1.2 V input voltage rails?
Yes-the TCK2065G,LF supports minimum input voltage of 1.4 V per its operating conditions table. At VIN = 1.2 V, the device is outside guaranteed operation; however, absolute maximum ratings allow VIN down to −0.3 V, and some functionality may persist. For reliable operation, maintain VIN ≥1.4 V, especially when delivering rated 1110 mA output current.
TCK2065G,LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package/Case:
- 6-UFBGA, WLCSP
- 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:
- 1.4V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 1.11A
- Rds On (Typ):
- 31mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WCSPE (0.80x1.2)
TCK2065G,LF FAQ
1.How can I place an order for TCK2065G,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for TCK2065G,LF 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 TCK2065G,LF reliable?
The price and inventory of TCK2065G,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCK2065G,LF is usually 5 days.
3.What payment methods are accepted for TCK2065G,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCK2065G,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCK2065G,LF?
TCK2065G,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCK2065G,LF 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 TCK2065G,LF?
For technical support, including TCK2065G,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCK2065G,LF requirements.
6.How does Aetrix verify that TCK2065G,LF is sourced from the original manufacturer or authorized distributors?
All TCK2065G,LF 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 TCK2065G,LF meets industry standards.
7.What is the process for return or replacement of TCK2065G,LF?
All TCK2065G,LF units undergo pre-shipment inspection (PSI). If there is an issue with TCK2065G,LF, 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 TCK2065G,LF part is unused and in its original packaging.
Return procedure for TCK2065G,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TCK2065G,LF Tags
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TPS22919DCKR
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MIC2091-1YM5-TR
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MIC2090-1YM5-TR
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TPS22995RZFR
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SIP32510DT-T1-GE3
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ULN2003D1013TR
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MIC2005A-1YM5-TR
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TPS22917DBVR
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ULN2003APWR
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