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Vishay Siliconix SIP21106DR-30-E3
- Part No.:
- SIP21106DR-30-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
SIP21106DR-30-E3.pdf
- Description:
- IC REG LINEAR 3V 150MA SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,922
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Product details
Overview
SIP21106DR-30-E3 from Vishay Siliconix is a fixed-output 3.0 V, 150 mA low-noise LDO voltage regulator in SC70-5L package. It delivers 135 mV dropout at full load, 60 µV(rms) output noise (10 Hz–100 kHz), ±1.0 % output accuracy at 25 °C, and 35 µA ground current at 1 mA - optimized for battery-powered RF systems requiring ultra-low noise and extended runtime.
For engineers reviewing the SIP21106DR-30-E3 datasheet, SIP21106DR-30-E3 pinout, SIP21106DR-30-E3 application, or SIP21106DR-30-E3 equivalent, key selection criteria include low-noise performance with BP capacitor support, auto-discharge on shutdown, industrial temperature range (−40 °C to +85 °C), and compatibility with 1 µF ceramic output capacitors.
Technical Context
The SIP21106DR-30-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) and error amplifier regulate output by comparing feedback voltage against this stable reference, delivering precise 3.0 V output across load and line variations.
It integrates active pull-down (100 Ω NMOS) for fast output discharge during shutdown, thermal shutdown at 160 °C with 20 °C hysteresis, and short-circuit protection limiting output current to 330 mA typical. The BP pin accepts a 10 nF bypass capacitor to suppress high-frequency noise without compromising startup time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±1.0 % at 25 °C; ensures stable core supply for 3.0 V logic and RF ICs |
| Dropout Voltage | 135 mV at 150 mA load; enables operation down to VIN = 3.135 V, extending 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 noise requirements for RF receivers and PLLs |
| Ground Current | 35 µA typical at 1 mA load; minimizes quiescent drain in standby mode for portable devices |
| Shutdown Current | ≤1 µA max at 85 °C; supports ultra-low-power sleep states in always-on subsystems |
| Thermal Protection | 160 °C junction shutdown with 20 °C hysteresis; prevents permanent damage during sustained overload or poor PCB thermal design |
| Auto-Discharge | 100 Ω internal NMOS pull-down; discharges 1 µF output cap in <1 ms upon EN deassertion, preventing floating rail issues |
Pinout & Package
SC70-5L package: 2.1 mm × 2.1 mm × 0.95 mm, RoHS-compliant, lead-free, 5-pin surface-mount.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable input | Active-high control: ≥1.2 V enables regulation; ≤0.4 V disables output and activates auto-discharge |
| 2 (GND) | Power ground | Primary return path and thermal conduction node; must connect to large copper plane for thermal management |
| 3 (VIN) | Input supply | Accepts 2.2–6.0 V input; requires 1 µF ceramic bypass capacitor to ground for stability and noise rejection |
| 4 (VOUT) | Regulated output | Delivers fixed 3.0 V; stable with ≥1 µF ceramic output capacitor; supports up to 150 mA continuous load |
| 5 (BP) | Noise bypass | Connects external 10 nF ceramic capacitor to ground to reduce output noise; not required for basic operation |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise architecture | 60 µV(rms) output noise with BP capacitor enables use in sensitive RF front-ends and ADC reference supplies |
| P-channel pass transistor | 0.9 Ω typical RDS(on) eliminates base-drive current loss, reducing ground current vs. PNP-based LDOs |
| Fast output discharge | 100 Ω internal NMOS pulls VOUT to GND in <1 ms after shutdown, preventing latch-up in downstream logic |
| Stable with small ceramics | Guaranteed stability with 1 µF X7R/Y7R output capacitor - reduces BOM count and board area vs. tantalum solutions |
| Industrial temperature range | Specified from −40 °C to +85 °C ambient; supports deployment in consumer handhelds and industrial sensors |
Applications
| Cellular RF Power Management | Digital Camera Core Supply |
|---|---|
Use Scenario: Regulating power to RF transceiver ICs in GSM/UMTS handsets where supply noise directly impacts EVM and adjacent channel leakage. IC Role / Device Role / Timing Role: Low-noise 3.0 V LDO supplying VCC for RF synthesizer and PA driver stages. Use Value: 60 µV(rms) noise ensures <−65 dBc phase noise floor; 135 mV dropout extends talk time by >8% over comparable LDOs in fading signal conditions. | Use Scenario: Providing clean 3.0 V bias to CMOS image sensor and ISP core logic during burst capture mode. IC Role / Device Role / Timing Role: Primary voltage regulator for image processing pipeline, synchronized with exposure timing signals. Use Value: Auto-discharge clears residual charge before next frame start, eliminating ghosting artifacts; ±1.0 % accuracy maintains consistent ADC reference scaling. |
| Wireless Modem Baseband | MP3 Player Audio Codec |
Use Scenario: Powering baseband processor I/O banks and memory interfaces in LTE Cat-1 modules operating under variable battery voltage. IC Role / Device Role / Timing Role: Fixed 3.0 V supply for SDIO, UART, and DDR interface circuitry. Use Value: 35 µA ground current at light load preserves battery during idle polling; 150 mA rating handles modem transmit bursts without dropout. | Use Scenario: Delivering regulated 3.0 V to stereo audio DAC and headphone amplifier in portable music players. IC Role / Device Role / Timing Role: Low-noise analog supply rail decoupled from noisy digital domains. Use Value: BP-capacitor-enabled noise suppression prevents audible hiss in 24-bit playback; SC70-5L footprint saves space in compact form factors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3002E/TT | 3.0 V fixed, 250 mA rating, 170 mV dropout at 250 mA, 65 µV(rms) noise, SOT-23-5 package | Higher current capability but larger footprint and higher dropout; no BP pin for noise tuning | Select when >150 mA peak load is required and board space allows SOT-23-5 |
| TCS21106D30R | 3.0 V fixed, 150 mA, 135 mV dropout, 60 µV(rms) noise, same SC70-5L package, identical pinout | Functionally identical electrical specs and mechanical form factor; manufactured by Torex as second-source | Valid drop-in replacement with same layout, thermal, and noise performance |
Compared with MCP1700T-3002E/TT, SIP21106DR-30-E3 offers lower dropout and smaller SC70-5L footprint; compared with TCS21106D30R, it shares identical performance and pinout but differs in manufacturer qualification and long-term availability status (EOL declared).
Availability
SIP21106DR-30-E3 is available at Aetrix Electronics and suitable for cellular handsets, digital cameras, and wireless modems requiring stable component supply despite end-of-life status.
Supply support for SIP21106DR-30-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 ultra-low-noise, low-quiescent-current LDO regulation in space-constrained portable electronics - specifically engineered for RF-sensitive applications where supply integrity directly impacts system-level RF performance.
FAQ
What is the maximum input voltage rating for SIP21106DR-30-E3?
The absolute maximum input voltage for SIP21106DR-30-E3 is 6.5 V relative to GND. Operation above 6.0 V is outside the recommended range and may degrade long-term reliability. For continuous operation, VIN must remain between 2.2 V and 6.0 V per the Recommended Operating Range table in the datasheet. Exceeding 6.5 V risks permanent damage to the internal P-channel pass transistor and bandgap reference circuitry.
Does SIP21106DR-30-E3 require an external bypass capacitor on the BP pin?
SIP21106DR-30-E3 does not require an external bypass capacitor on the BP pin for basic regulation, but a 10 nF ceramic capacitor is mandatory to achieve the specified 60 µV(rms) output noise performance. Without it, output noise rises to ~350 µV(rms). The BP capacitor forms a low-pass filter with internal impedance; values >50 nF are not recommended as they delay startup and increase ground current.
How does the auto-discharge function work in SIP21106DR-30-E3?
When the EN pin is pulled low, SIP21106DR-30-E3 enters shutdown mode and activates an internal 100 Ω NMOS transistor between VOUT and GND. This provides a controlled discharge path: a 1 µF output capacitor discharges to <10 % of nominal voltage in under 1 ms. The feature prevents floating outputs that could cause undefined logic states or latch-up in downstream circuits during power sequencing.
What is the thermal derating behavior of SIP21106DR-30-E3 in SC70-5L package?
In the SC70-5L package, SIP21106DR-30-E3 has a thermal resistance θJA of 294 °C/W. Above 70 °C ambient, power dissipation must be linearly derated at 3.4 mW/°C. For example, at 85 °C ambient, maximum allowable power drops to 187 mW − (15 °C × 3.4 mW/°C) = 136 mW. This limits usable output current at high ambient temperatures - e.g., at VIN = 4.5 V and VOUT = 3.0 V, max IOUT ≈ 91 mA.
Is SIP21106DR-30-E3 still in production or available for new designs?
SIP21106DR-30-E3 is End of Life (EOL) with Last Available Purchase Date of 31-Dec-2014. It is no longer in production, but Aetrix Electronics maintains legacy inventory and supports obsolescence management. For new designs, engineers should evaluate functional alternatives such as TCS21106D30R (pin-compatible second source) or newer Vishay LDOs like the SiP22403 series, which offer improved PSRR and lower noise in modern packages.
SIP21106DR-30-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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):
- 3V
- 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:
- SC-70-5
SIP21106DR-30-E3 FAQ
1.How can I place an order for SIP21106DR-30-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP21106DR-30-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 SIP21106DR-30-E3 reliable?
The price and inventory of SIP21106DR-30-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SIP21106DR-30-E3 is usually 5 days.
3.What payment methods are accepted for SIP21106DR-30-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP21106DR-30-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP21106DR-30-E3?
SIP21106DR-30-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP21106DR-30-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 SIP21106DR-30-E3?
For technical support, including SIP21106DR-30-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP21106DR-30-E3 requirements.
6.How does Aetrix verify that SIP21106DR-30-E3 is sourced from the original manufacturer or authorized distributors?
All SIP21106DR-30-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 SIP21106DR-30-E3 meets industry standards.
7.What is the process for return or replacement of SIP21106DR-30-E3?
All SIP21106DR-30-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SIP21106DR-30-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 SIP21106DR-30-E3 part is unused and in its original packaging.
Return procedure for SIP21106DR-30-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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