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Vishay Siliconix SIP21106DVP-285-E3
- Part No.:
- SIP21106DVP-285-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- PowerPAK® TSC-75-6
- Datasheet:
-
SIP21106DVP-285-E3.pdf
- Description:
- IC REG LIN 2.85V 150MA TSC75-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,487
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Product details
Overview
SIP21106DVP-285-E3 from Vishay Siliconix is a fixed-output 2.85 V, 150 mA low-noise low-dropout (LDO) regulator with 60 µV(rms) output noise (10 Hz–100 kHz), 135 mV dropout at full load, and ±1.0 % output voltage accuracy at 25 °C. It employs a P-channel MOSFET pass element, supports ceramic capacitors as small as 1 µF, and targets battery-powered RF-sensitive systems such as wireless handsets and digital cameras.
For engineers reviewing the SIP21106DVP-285-E3 datasheet, SIP21106DVP-285-E3 pinout, SIP21106DVP-285-E3 application, or SIP21106DVP-285-E3 equivalent, key selection criteria include ultra-low ground current (35 µA typ. at 1 mA), integrated auto-discharge (100 Ω NMOS), shutdown current ≤1 µA, and compatibility with TSOT23-5L/SC70-5L/TSC75-6L packages for space-constrained portable designs.
Technical Context
The SIP21106DVP-285-E3 uses a constant 1.2 V bandgap reference and error amplifier to regulate output against load and line variations. Its P-channel MOSFET pass transistor eliminates base-drive current, enabling low quiescent operation and stable dropout performance down to 135 mV at 150 mA.
Startup includes an active pull-down circuit to improve transient response, while shutdown mode engages an internal 100 Ω NMOS to discharge the output capacitor in <1 ms. The BP pin accepts a 10 nF bypass capacitor to reduce output noise to 60 µV(rms) across the full 1–150 mA load range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.85 V ±1.0 % at 25 °C - ensures stable biasing for 2.85 V logic or analog rails without external feedback. |
| Dropout Voltage | 135 mV at 150 mA - enables regulation from 3.0 V input, extending usable battery life in single-cell Li-ion or alkaline systems. |
| Output Noise | 60 µV(rms), 10 Hz–100 kHz with 10 nF BP cap - meets stringent RF section supply requirements in cellular transceivers. |
| Ground Current | 35 µA typical at 1 mA load - minimizes standby power loss in always-on subsystems like real-time clocks or sensors. |
| Shutdown Current | ≤1 µA at 85 °C - preserves battery charge during deep sleep modes in portable electronics. |
| Auto-Discharge | 100 Ω NMOS path - safely discharges output capacitance in <1 ms upon disable, preventing latch-up in cascaded power domains. |
| Thermal Protection | 160 °C junction shutdown with 20 °C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
Available in TSOT23-5L (3.05 mm × 2.85 mm × 1.0 mm), SC70-5L (2.1 mm × 2.1 mm × 0.95 mm), and TSC75-6L (1.6 mm × 1.6 mm × 0.55 mm) RoHS-compliant packages. Pin numbering differs by package; SIP21106DVP-285-E3 uses the 5-pin variant (no NC pin).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable control input | Active-high logic input; <0.4 V disables regulator and activates auto-discharge; connect to VIN for always-on operation. |
| GND | Power ground reference | Primary thermal and electrical return path; must be connected to large copper plane for thermal management and noise immunity. |
| VIN | Input supply | Accepts 2.2–6.0 V; requires ≥1 µF low-ESR ceramic bypass capacitor placed adjacent to pin for stability and line rejection. |
| VOUT | Regulated output | Delivers 2.85 V ±1.0 %; supports 150 mA continuous, 330 mA peak; stable with ≥1 µF ceramic output capacitor. |
| BP | Noise bypass terminal | Connects to 10 nF ceramic capacitor to ground to filter reference and error amp noise, reducing output noise to 60 µV(rms). |
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 without additional filtering. |
| P-channel MOSFET pass element | 0.9 Ω typical RDS(on) - eliminates base-current dependency, ensuring consistent low ground current across load and temperature. |
| Integrated auto-discharge | 100 Ω NMOS discharge path - eliminates need for external bleed resistor, simplifying BOM and improving turn-off timing predictability. |
| Stable with minimal capacitance | Works with 1 µF ceramic COUT - reduces board area and cost versus traditional LDOs requiring tantalum or larger ceramics. |
| Robust protection suite | 330 mA current limit + 160 °C thermal shutdown - allows safe operation under short-circuit or high ambient conditions without external components. |
Applications
| Cellular Handsets | Wireless Modems |
|---|---|
Use Scenario: Powering RF transceiver ICs and baseband processors in dual-mode GSM/UMTS handsets. IC Role / Device Role / Timing Role: Primary 2.85 V LDO supplying noise-sensitive RF synthesizers and PLLs. Use Value: 60 µV(rms) noise and fast transient response prevent phase noise degradation and maintain EVM compliance. | Use Scenario: Regulating power for LTE/Wi-Fi coexistence modules in compact M.2 or mini-PCIe modems. IC Role / Device Role / Timing Role: Local 2.85 V supply for WLAN MAC/PHY ICs requiring low quiescent current during sleep states. Use Value: 35 µA ground current at 1 mA and ≤1 µA shutdown current extend battery runtime in always-connected IoT gateways. |
| Digital Cameras | Noise-Sensitive Instrumentation |
Use Scenario: Supplying image sensor analog front-end (AFE) and ISP core logic in portable HD camcorders. IC Role / Device Role / Timing Role: Low-noise 2.85 V rail for CCD/CMOS sensor bias and analog signal chain amplification. Use Value: 135 mV dropout enables operation from partially discharged 3.0 V lithium polymer cells, maximizing capture time per charge. | Use Scenario: Providing reference voltage and analog supply for handheld medical sensors (e.g., pulse oximeters, ECG front-ends). IC Role / Device Role / Timing Role: Precision 2.85 V source for op-amp biasing and ADC reference buffers. Use Value: ±1.0 % output accuracy at 25 °C and low thermal drift ensure measurement repeatability across -40 °C to +85 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-285I/OT | 250 mA rated, 170 mV dropout at 250 mA, 30 µV(rms) noise, no BP pin | Higher current capability but lacks dedicated noise-bypass pin; requires external RC filter for equivalent noise performance | Preferred when >150 mA load or lower noise without BP cap is required; not pin-compatible |
| TCS21106DVP-285-E3 | Same family, identical specs and pinout - rebranded part by Vishay for specific distribution channels | No functional difference; same datasheet (74442), same marking CT, same TSC75-6L package option | Select based on channel availability; fully interchangeable with no design change |
Compared with MCP1700T-285I/OT and TCS21106DVP-285-E3, the SIP21106DVP-285-E3 uniquely delivers 60 µV(rms) noise via integrated BP pin architecture-enabling simpler, smaller layouts for RF-critical applications-while TCS21106DVP-285-E3 offers identical performance with alternate logistics traceability.
Availability
SIP21106DVP-285-E3 is available at Aetrix Electronics and suitable for cellular handsets, wireless modems, and digital cameras requiring stable component supply through extended production lifecycles despite end-of-life status.
Supply support for SIP21106DVP-285-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 integrated power solutions, emphasizing reliability, efficiency, and miniaturization for demanding electronic systems.
The SiP21106 series targets portable, battery-operated devices where ultra-low noise, minimal quiescent current, and small footprint are critical-especially in RF, imaging, and instrumentation subsystems.
FAQ
What is the maximum input voltage rating for SIP21106DVP-285-E3?
The absolute maximum input voltage for SIP21106DVP-285-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 performance optimized for inputs ≥3.0 V when delivering 2.85 V at 150 mA.
Does SIP21106DVP-285-E3 require an external bypass capacitor on the BP pin?
Yes, SIP21106DVP-285-E3 requires a 10 nF ceramic capacitor connected from the BP pin to GND to achieve its specified 60 µV(rms) output noise performance across the 10 Hz–100 kHz bandwidth. Omitting this capacitor increases output noise to ~350 µV(rms), as seen in SiP21107/21108 variants. Larger values (>50 nF) are not recommended due to startup timing impact.
How does the auto-discharge function work in SIP21106DVP-285-E3?
When the EN pin is driven low, SIP21106DVP-285-E3 enters shutdown mode and activates an internal 100 Ω NMOS transistor between VOUT and GND. This path discharges a 1 µF output capacitor in less than 1 ms, preventing residual voltage from interfering with downstream logic sequencing or causing latch-up in multi-rail systems.
Can SIP21106DVP-285-E3 operate with ceramic output capacitors smaller than 1 µF?
No-SIP21106DVP-285-E3 requires a minimum 1 µF ceramic output capacitor for guaranteed stability across the full -40 °C to +85 °C temperature range and 1–150 mA load. The datasheet specifies stability with "6 nF/mA" capacitance, equating to ≥0.9 µF at 150 mA; using <1 µF risks oscillation or degraded transient response, especially with Z5U/Y5V dielectrics.
What is the thermal shutdown behavior of SIP21106DVP-285-E3?
SIP21106DVP-285-E3 triggers thermal shutdown at approximately 160 °C junction temperature and resumes regulation after cooling by ~20 °C hysteresis. During sustained overload, this results in pulsed output rather than permanent disable. For continuous operation, the junction temperature must remain ≤125 °C-achievable with proper PCB copper area on the GND pin and adherence to package-specific derating curves (e.g., 5.5 mW/°C above 70 °C for TSOT23-5L).
SIP21106DVP-285-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):
- 2.85V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.22V @ 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-285-E3 FAQ
1.How can I place an order for SIP21106DVP-285-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP21106DVP-285-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-285-E3 reliable?
The price and inventory of SIP21106DVP-285-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-285-E3 is usually 5 days.
3.What payment methods are accepted for SIP21106DVP-285-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP21106DVP-285-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP21106DVP-285-E3?
SIP21106DVP-285-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP21106DVP-285-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-285-E3?
For technical support, including SIP21106DVP-285-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP21106DVP-285-E3 requirements.
6.How does Aetrix verify that SIP21106DVP-285-E3 is sourced from the original manufacturer or authorized distributors?
All SIP21106DVP-285-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-285-E3 meets industry standards.
7.What is the process for return or replacement of SIP21106DVP-285-E3?
All SIP21106DVP-285-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SIP21106DVP-285-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-285-E3 part is unused and in its original packaging.
Return procedure for SIP21106DVP-285-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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