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Vishay Siliconix SIP32468DB-T2-GE1
- Part No.:
- SIP32468DB-T2-GE1
- Manufacturer:
- Vishay Siliconix
- Package:
- 4-UFBGA, WLCSP
- Datasheet:
-
SIP32468DB-T2-GE1.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,334
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Product details
Overview
SIP32468DB-T2-GE1 from Vishay Siliconix is a slew-rate-controlled, high-side load switch IC operating from 1.2 V to 5.5 V input voltage, featuring 54 mΩ typical RDS(on) at 3 V, integrated output discharge, reverse current blocking, and logic-low enable. It serves as a power-path control device in portable battery-powered systems requiring controlled inrush current and automatic output discharge during shutdown.
For engineers reviewing the SIP32468DB-T2-GE1 datasheet, SIP32468DB-T2-GE1 pinout, SIP32468DB-T2-GE1 application, or SIP32468DB-T2-GE1 equivalent, key selection criteria include its 300 μs slew-controlled turn-on time, WCSP4 0.76 mm × 0.76 mm package with 0.4 mm pitch, integrated EN pull-up resistor (2.6 MΩ), and guaranteed reverse blocking up to 5 V output when disabled.
Technical Context
The SIP32468DB-T2-GE1 integrates a negative charge pump to maintain high gate-to-source voltage across low input voltages (1.2 V–5.5 V), enabling stable low RDS(on) performance. Its internal slew-rate control circuit limits dV/dt at the output to suppress inrush current during turn-on.
Unlike the SiP32467 variant, SIP32468DB-T2-GE1 includes an integrated output discharge switch (RPD < 200 Ω at 1.8 V) that actively pulls VOUT to GND when EN is deasserted. It also features reverse current blocking (IIN(RB) ≤ 1 nA at VOUT = 5 V, VIN = 0 V) and a built-in 2.6 MΩ pull-up resistor from EN to IN.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.2 V to 5.5 V - supports single-cell Li-ion, Li-polymer, and multi-rail PMIC outputs without level-shifting. |
| RDS(on) (typ. @ 3 V) | 54 mΩ - enables ≤ 1.2 A continuous switching with ≤ 65 mW conduction loss at full load. |
| Slew Rate Control | 300 μs rise time - limits inrush current to protect upstream power sources and downstream capacitors. |
| Output Discharge | Integrated pulldown (RPD < 200 Ω @ 1.8 V) - discharges VOUT within milliseconds after disable, preventing floating or latch-up in downstream circuits. |
| Reverse Blocking Current | ≤ 1 nA @ VOUT = 5 V, VIN = 0 V - prevents backflow from higher-voltage rails (e.g., USB OTG, auxiliary supplies) into main battery path. |
| EN Logic Polarity | Active-low with internal 2.6 MΩ pull-up - simplifies interface to 1.2 V–3.3 V GPIOs; no external pull-up required. |
| Quiescent Current | 6 μA @ VIN = 3.3 V - minimizes standby power draw in always-on subsystems (e.g., RTC, sensors). |
Pinout & Package
Package: WCSP4 (Wafer-Level Chip-Scale Package), 2 × 2 bump array, 0.76 mm × 0.76 mm footprint, 0.4 mm pitch, 0.5 mm height, solder bumps SAC396.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | OUT | Switch output node - connects to load capacitance and downstream circuitry; internally discharged when EN = high. |
| A2 | IN | Power input - accepts 1.2 V–5.5 V supply; source for internal charge pump and EN pull-up resistor. |
| B1 | GND | Ground reference - must be low-impedance connection to system ground plane for thermal and noise integrity. |
| B2 | EN | Enable control - logic-low turns switch ON; internal 2.6 MΩ pull-up to IN ensures default OFF state if left floating. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Output Discharge | Enables fast, deterministic VOUT discharge (< 1 ms for 10 μF load) without external FET or resistor network. |
| Reverse Current Blocking | Prevents backfeed from higher-voltage outputs (e.g., USB VBUS) into battery rail, eliminating need for external diode or ideal diode controller. |
| Slew-Rate Controlled Turn-On | Guarantees 300 μs output rise time - eliminates voltage droop on shared input rails and avoids false resets in sensitive digital loads. |
| Low-Voltage Compatibility | Operates down to 1.2 V input - supports modern ultra-low-power SoCs and sub-1.8 V I/O domains without external biasing. |
| WCSP4 Miniaturization | 0.76 mm × 0.76 mm footprint - saves >70% board area vs. comparable SOT-23 or DFN packages, critical for space-constrained mobile designs. |
Applications
| Smartphone Power Management | Portable Medical Sensor Hub |
|---|---|
Use Scenario: Isolating camera module or NFC transceiver from main battery during sleep mode while retaining fast wake-up capability. IC Role / Device Role / Timing Role: High-side load switch controlling power delivery to peripheral subsystems; slew-controlled turn-on prevents brownout during camera activation. Use Value: Integrated output discharge ensures NFC antenna bias settles cleanly before RF handshake; reverse blocking prevents interference from USB-C VBUS during charging. | Use Scenario: Enabling/disabling ECG front-end analog signal chain powered from low-noise LDO, with strict requirement for zero residual voltage on analog inputs during off-state. IC Role / Device Role / Timing Role: Precision power gate with sub-nA leakage and active VOUT discharge - maintains analog input nodes at GND potential during standby. Use Value: Eliminates need for external discharge FET and timing RC network; 1 nA reverse blocking preserves battery life over multi-week wearable deployments. |
| Tablet USB-C Accessory Port | Industrial Handheld Scanner |
Use Scenario: Managing power to USB-C alternate mode (DisplayPort) circuitry where VOUT may exceed VIN during hot-plug events. IC Role / Device Role / Timing Role: Bidirectional isolation switch with reverse blocking - blocks current flow from DP AUX/HPD lines back into main SoC rail when port is inactive. Use Value: Prevents unintended power injection into SoC I/O pins; 5.5 V absolute max rating accommodates transient overshoot on USB-C CC lines. | Use Scenario: Sequencing power to laser driver and image sensor in barcode scanner, requiring synchronized discharge of both rails upon button-release shutdown. IC Role / Device Role / Timing Role: Dual-rail enable/discharge controller - one SIP32468DB-T2-GE1 per rail provides independent slew control and discharge timing. Use Value: 300 μs slew rate matches mechanical switch debounce window; integrated discharge eliminates risk of residual charge causing false trigger on next scan cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL7407LDR | No integrated output discharge; 7-channel NMOS array with 1.5 Ω RDS(on); requires external pull-down for discharge. | Higher RDS(on) and no slew control - unsuitable for low-voltage, high-current, or inrush-sensitive loads. | Select only when multi-channel discrete gating is needed and discharge is handled externally. |
| TPS22915BYFPR | 0.57 mΩ RDS(on) at 5 V but no output discharge; 0.65 mm × 0.65 mm DSBGA package; 1.6 V–5.5 V range. | Lacks reverse blocking below 1.6 V input - cannot support 1.2 V SoC rails or bidirectional isolation at lowest voltages. | Choose for ultra-low-loss 3.3 V/5 V rails where discharge is managed by system-level sequencing. |
Compared with TPL7407LDR and TPS22915BYFPR, SIP32468DB-T2-GE1 uniquely combines sub-100 mΩ RDS(on) down to 1.2 V, integrated discharge, and guaranteed reverse blocking - making it the only option for compact, battery-critical designs requiring full rail control at minimum voltage.
Availability
SIP32468DB-T2-GE1 is available at Aetrix Electronics and suitable for smartphone power management, portable medical sensor hubs, tablet USB-C accessory ports, and industrial handheld scanners requiring stable component supply, long-term lifecycle assurance, and wafer-level packaging consistency.
Supply support for SIP32468DB-T2-GE1 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
Vishay Siliconix is a global leader in discrete semiconductors and passive components, specializing in power MOSFETs, diodes, optoelectronics, and precision resistive solutions.
The SiP3246x family was designed specifically for space-constrained, battery-powered consumer and medical devices requiring robust power-path control with minimal external components and guaranteed low-leakage isolation.
FAQ
What is the maximum continuous current rating for SIP32468DB-T2-GE1?
The SIP32468DB-T2-GE1 has a maximum continuous switch current rating of 1.2 A, as specified in the Absolute Maximum Ratings table. This limit is thermally derived - at 70 °C ambient, power dissipation is capped at ~268 mW due to θJ-A = 205 °C/W and TJ(max) = 125 °C. Exceeding 1.2 A risks junction overheating even if RDS(on) suggests higher theoretical current capability.
Does SIP32468DB-T2-GE1 support bidirectional operation?
The SIP32468DB-T2-GE1 supports bidirectional voltage blocking (reverse current blocking) when disabled, but is not a true bidirectional switch during conduction. Its internal architecture is optimized for high-side switching from IN to OUT. While it can tolerate VOUT > VIN when off, forward conduction is unidirectional - current flows only from IN to OUT when enabled.
How does the integrated output discharge function in SIP32468DB-T2-GE1?
In SIP32468DB-T2-GE1, the integrated output discharge activates automatically when EN is driven high (device disabled). A dedicated internal NMOS switch connects OUT to GND with RPD < 200 Ω at 1.8 V, discharging typical 1–10 μF load capacitances in under 1 ms. This eliminates floating outputs and prevents unintended wake-up or latch-up in downstream circuitry.
What is the purpose of the 2.6 MΩ pull-up resistor on the EN pin of SIP32468DB-T2-GE1?
The 2.6 MΩ internal pull-up resistor on the EN pin of SIP32468DB-T2-GE1 ensures a defined logic-high state (disable condition) when the control line is left unconnected or driven high-impedance. It eliminates the need for an external pull-up and guarantees safe default-OFF behavior - critical for battery safety in portable systems where accidental power-on must be prevented.
Can SIP32468DB-T2-GE1 operate reliably at 1.2 V input voltage?
Yes, SIP32468DB-T2-GE1 is fully specified for operation at 1.2 V input voltage, with RDS(on) = 95 mΩ (max) and functional slew-rate control maintained. Its internal charge pump architecture sustains sufficient gate drive at this minimum voltage, enabling use with ultra-low-power microcontrollers and sub-1.8 V I/O domains without external level-shifting or boosting.
SIP32468DB-T2-GE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Package/Case:
- 4-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:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 1.2V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 1.2A
- Rds On (Typ):
- 50mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge, Slew Rate Controlled
- Fault Protection:
- Reverse Current
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-WLCSP (0.76x0.76)
SIP32468DB-T2-GE1 FAQ
1.How can I place an order for SIP32468DB-T2-GE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP32468DB-T2-GE1 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 SIP32468DB-T2-GE1 reliable?
The price and inventory of SIP32468DB-T2-GE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SIP32468DB-T2-GE1 is usually 5 days.
3.What payment methods are accepted for SIP32468DB-T2-GE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP32468DB-T2-GE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP32468DB-T2-GE1?
SIP32468DB-T2-GE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP32468DB-T2-GE1 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 SIP32468DB-T2-GE1?
For technical support, including SIP32468DB-T2-GE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP32468DB-T2-GE1 requirements.
6.How does Aetrix verify that SIP32468DB-T2-GE1 is sourced from the original manufacturer or authorized distributors?
All SIP32468DB-T2-GE1 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 SIP32468DB-T2-GE1 meets industry standards.
7.What is the process for return or replacement of SIP32468DB-T2-GE1?
All SIP32468DB-T2-GE1 units undergo pre-shipment inspection (PSI). If there is an issue with SIP32468DB-T2-GE1, 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 SIP32468DB-T2-GE1 part is unused and in its original packaging.
Return procedure for SIP32468DB-T2-GE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SIP32468DB-T2-GE1 Tags
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