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Vishay Siliconix SIP21106DVP-25-E3
- Part No.:
- SIP21106DVP-25-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- PowerPAK® TSC-75-6
- Datasheet:
-
SIP21106DVP-25-E3.pdf
- Description:
- IC REG LIN 2.5V 150MA TSC75-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,304
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Product details
Overview
SIP21106DVP-25-E3 from Vishay Siliconix is a 2.5 V fixed-output, 150 mA low-noise LDO voltage regulator in TSC75-6L package. It features 135 mV dropout at 150 mA, 60 µV(rms) output noise (10 Hz–100 kHz), ±1.0 % output accuracy at 25 °C, and operates across –40 °C to +85 °C ambient. Designed for battery-powered RF systems such as cellular handsets and wireless modems where quiet supply rails are critical.
For engineers reviewing the SIP21106DVP-25-E3 datasheet, SIP21106DVP-25-E3 pinout, SIP21106DVP-25-E3 application, or SIP21106DVP-25-E3 equivalent, key selection criteria include ultra-low ground current (35 µA typ. at 1 mA), integrated auto-discharge (100 Ω NMOS), and compatibility with 1 µF ceramic output capacitors without external compensation.
Technical Context
The SIP21106DVP-25-E3 uses a P-channel MOSFET pass transistor with 0.9 Ω typical on-resistance, enabling low dropout and near-zero gate drive current. Its bandgap reference (1.2 V) feeds an error amplifier that regulates output by adjusting the PMOS gate voltage based on feedback from internal resistors.
Startup includes active pull-down for fast transient response; shutdown mode disables regulation and activates a 100 Ω internal discharge path to ground. The BP pin accepts a 10 nF bypass capacitor to suppress noise-critical for RF-sensitive loads-and the device maintains stability with minimal 1 µF output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±1.0 % at 25 °C; ensures stable core logic or analog supply without external resistors. |
| Dropout Voltage | 135 mV at 150 mA load; enables operation down to VIN = 2.635 V while maintaining regulation. |
| Output Noise | 60 µV(rms), 10 Hz–100 kHz bandwidth with 10 nF BP capacitor; meets stringent RF LNA/PA supply noise requirements. |
| Ground Current | 35 µA typical at 1 mA load; extends battery life in always-on standby circuits. |
| Shutdown Current | ≤1 µA maximum at 85 °C; minimizes leakage during system sleep modes. |
| Thermal Protection | 160 °C junction shutdown with 20 °C hysteresis; prevents permanent damage under sustained overload. |
| Auto-Discharge | 100 Ω NMOS discharge path activated when EN = 0 V; clears output within <1 ms for safe sequencing. |
Pinout & Package
TSC75-6L package: 1.6 mm × 1.6 mm × 0.55 mm, Pb-free, industrial temperature range (–40 °C to +85 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Enable control input | Active-high logic; <0.4 V disables regulator and triggers auto-discharge; connect to VIN if unused. |
| 2 - GND | Power ground reference | Primary thermal path; must be connected to large PCB ground plane for thermal management. |
| 3 - VIN | Input supply | Accepts 2.2–6.0 V; requires 1 µF ceramic bypass capacitor to ground for stability and noise rejection. |
| 4 - VOUT | Regulated output | Delivers 2.5 V at up to 150 mA; stable with ≥1 µF ceramic output capacitor (ESR < 0.4 Ω). |
| 5 - NC | No connection | Internally unconnected; leave floating or tie to GND per layout best practice. |
| 6 - BP | Noise bypass terminal | Connects to 10 nF ceramic capacitor to ground to reduce output noise; not required for basic operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise regulation | 60 µV(rms) output noise with 10 nF BP cap-enables clean power for RF front-ends and precision ADCs. |
| P-channel MOSFET pass element | 0.9 Ω typical RDS(on); eliminates base-drive current loss, improving efficiency over PNP-based LDOs. |
| Integrated auto-discharge | 100 Ω NMOS discharge path activated on shutdown-eliminates need for external bleed resistor in power sequencing. |
| Stable with small ceramics | Guaranteed stability with 1 µF X7R/Y7R output capacitor-reduces BOM count and board area vs. tantalum alternatives. |
| Robust protection suite | 330 mA current limit (typ.) and 160 °C thermal shutdown with hysteresis-supports fault-tolerant portable designs. |
Applications
| Cellular Handsets | Wireless Modems |
|---|---|
Use Scenario: Powering RF transceiver ICs and baseband processors in compact handheld devices with single-cell Li-ion input. IC Role / Device Role / Timing Role: Primary low-noise LDO supplying 2.5 V to sensitive RF sections (LNA, mixer, VCO) requiring minimal supply ripple. Use Value: 60 µV(rms) noise and fast transient response prevent desensitization and maintain EVM compliance under dynamic load. | Use Scenario: Regulating power for embedded LTE/Wi-Fi modules operating in industrial gateways with wide input voltage variation. IC Role / Device Role / Timing Role: Fixed 2.5 V supply for digital I/O banks and PHY interface logic needing tight voltage tolerance and low quiescent current. Use Value: ±1.0 % accuracy and 35 µA ground current ensure reliable communication link uptime and extended battery backup duration. |
| Digital Cameras | Noise-Sensitive Analog Circuits |
Use Scenario: Supplying image sensor bias and ISP core voltage in battery-powered action cameras with aggressive size constraints. IC Role / Device Role / Timing Role: Compact LDO delivering regulated 2.5 V to CMOS image sensor analog front-end and ADC reference circuitry. Use Value: TSC75-6L footprint (1.6 mm²) and 1 µF capacitor support enable miniaturized camera modules without sacrificing PSRR. | Use Scenario: Providing clean bias for instrumentation amplifiers, precision DACs, and MEMS microphone preamps in portable test equipment. IC Role / Device Role / Timing Role: Ultra-low-noise 2.5 V source decoupled via BP pin to reject switching noise from adjacent DC/DC converters. Use Value: 10 nF BP capacitor reduces broadband noise floor by >20 dB, preserving SNR in sub-100 µV signal chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2502E/TT | 250 mA rated output, 1.6 µA quiescent current, SOT-23-5 package; no BP pin or auto-discharge. | Lacks noise-bypass capability and integrated discharge; suitable only where ultra-low IQ dominates over noise performance. | Select only if system prioritizes lowest possible shutdown current over RF-grade noise suppression. |
| TPS78025DDCR | 200 mA output, 500 nA IQ, 170 mV dropout at 150 mA, WSON-6 package; no BP pin or auto-discharge. | Higher dropout and no noise-reduction path; optimized for ultra-low-power microcontroller cores-not RF analog rails. | Prefer for deep-sleep MCU applications; avoid where 60 µV(rms) noise or fast discharge is required. |
Compared with MCP1700T-2502E/TT and TPS78025DDCR, SIP21106DVP-25-E3 uniquely delivers 60 µV(rms) noise with BP filtering and 100 Ω auto-discharge-making it the only choice among the three for RF-sensitive 2.5 V rail generation in space-constrained portable designs.
Availability
SIP21106DVP-25-E3 is available at Aetrix Electronics and suitable for cellular handsets, wireless modems, and digital cameras requiring stable component supply despite end-of-life status.
Supply support for SIP21106DVP-25-E3 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 designs high-performance discrete semiconductors and power ICs with emphasis on efficiency, reliability, and miniaturization.
The SiP21106 series targets portable electronics requiring ultra-low-noise, low-quiescent-current LDOs in sub-2 mm² packages-specifically addressing RF and precision analog power needs in battery-constrained systems.
FAQ
What is the maximum input voltage rating for SIP21106DVP-25-E3?
The absolute maximum input voltage for SIP21106DVP-25-E3 is 6.5 V relative to GND. Operation above 6.0 V is outside the recommended range and may compromise long-term reliability. The device is specified for continuous operation between 2.2 V and 6.0 V input, with dropout behavior defined down to 2.635 V at full 150 mA load. Always observe derating curves for thermal limits in the TSC75-6L package.
Does SIP21106DVP-25-E3 require an external bypass capacitor on the BP pin?
Yes-SIP21106DVP-25-E3 requires a 10 nF ceramic capacitor connected from the BP pin to GND to achieve its specified 60 µV(rms) output noise performance. Without this capacitor, output noise rises to 350 µV(rms). The BP pin is exclusive to the SiP21106 variant; SiP21107 and SiP21108 use this pin for POK and Adj functions respectively.
How does the auto-discharge function work in SIP21106DVP-25-E3?
When the EN pin is driven low, SIP21106DVP-25-E3 enters shutdown mode and activates an internal 100 Ω NMOS discharge path between VOUT and GND. This discharges a 1 µF output capacitor in under 1 ms, ensuring rapid and controlled power-down. No external components are needed-the feature is fully integrated and functional across the full –40 °C to +85 °C temperature range.
Can SIP21106DVP-25-E3 operate with a 1 µF output capacitor?
Yes-SIP21106DVP-25-E3 is explicitly designed to remain stable with a minimum 1 µF ceramic output capacitor (X7R or Y7R dielectric), provided ESR stays below 0.4 Ω. Larger capacitors improve load-transient response and PSRR but are not required. Z5U/Y5V types are discouraged due to temperature-dependent ESR shifts that may risk instability at extremes.
Is SIP21106DVP-25-E3 still in production or available for new designs?
SIP21106DVP-25-E3 is End of Life per Vishay's notice: last purchase date was 31-Dec-2014. However, Aetrix Electronics maintains legacy inventory and supports ongoing production programs with traceable, tested stock. For new designs, engineers should evaluate drop-in alternatives-but SIP21106DVP-25-E3 remains viable where its unique 60 µV(rms) noise + auto-discharge combination is irreplaceable.
SIP21106DVP-25-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Package/Case:
- PowerPAK® TSC-75-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 85 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB ~ 40dB (1kHz ~ 100kHz)
- Control Features:
- Enable
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerPAK® TSC75-6
SIP21106DVP-25-E3 FAQ
1.How can I place an order for SIP21106DVP-25-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP21106DVP-25-E3 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 SIP21106DVP-25-E3 reliable?
The price and inventory of SIP21106DVP-25-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SIP21106DVP-25-E3 is usually 5 days.
3.What payment methods are accepted for SIP21106DVP-25-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP21106DVP-25-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP21106DVP-25-E3?
SIP21106DVP-25-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP21106DVP-25-E3 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 SIP21106DVP-25-E3?
For technical support, including SIP21106DVP-25-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP21106DVP-25-E3 requirements.
6.How does Aetrix verify that SIP21106DVP-25-E3 is sourced from the original manufacturer or authorized distributors?
All SIP21106DVP-25-E3 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 SIP21106DVP-25-E3 meets industry standards.
7.What is the process for return or replacement of SIP21106DVP-25-E3?
All SIP21106DVP-25-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SIP21106DVP-25-E3, 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 SIP21106DVP-25-E3 part is unused and in its original packaging.
Return procedure for SIP21106DVP-25-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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