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Vishay Siliconix SIP21107DVP-46-E3
- Part No.:
- SIP21107DVP-46-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- PowerPAK® TSC-75-6
- Datasheet:
-
SIP21107DVP-46-E3.pdf
- Description:
- IC REG LIN 4.6V 150MA TSC75-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,602
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Product details
Overview
SIP21107DVP-46-E3 from Vishay Siliconix is a 4.6 V fixed-output, 150 mA low-dropout linear regulator with Power-OK (POK) error flag output, 135 mV dropout at full load, 1.0 % output voltage accuracy at 25 °C, and operation over -40 °C to +85 °C ambient. It delivers stable, low-noise power for RF sections in portable wireless handsets requiring precise voltage supervision.
For engineers reviewing the SIP21107DVP-46-E3 datasheet, SIP21107DVP-46-E3 pinout, SIP21107DVP-46-E3 application, or SIP21107DVP-46-E3 equivalent, key selection criteria include POK threshold behavior (93 % nominal), auto-discharge resistance (100 Ω), shutdown current (<1 µA), thermal protection (160 °C), and compatibility with 1 µF ceramic output capacitors.
Technical Context
The SIP21107DVP-46-E3 uses a P-channel MOSFET pass element with 0.9 Ω typical on-resistance, enabling ultra-low ground current (35 µA typ. at 1 mA) and eliminating base-drive losses inherent in PNP-based LDOs. Its error amplifier compares a 1.2 V bandgap reference against feedback from the regulated output.
POK functionality is implemented via an open-drain NMOS comparator monitoring VOUT relative to VIN, asserting low when output falls below 93 % of nominal under-voltage conditions-requiring an external pull-up resistor. The device integrates active pull-down (100 Ω) for output discharge during shutdown and thermal shutdown with 20 °C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 4.6 V ±2.5 % over -40 °C to +85 °C - ensures stable core logic supply in battery-powered handhelds |
| Dropout Voltage | 135 mV at 150 mA load - enables regulation down to VIN = 4.735 V, extending usable battery range |
| Ground Current | 35 µA typical at 1 mA load - minimizes standby power drain in always-on subsystems |
| Shutdown Current | ≤1 µA at 85 °C - supports multi-week shelf life in shipped devices |
| POK Threshold | 93 % of VOUT nominal (±3 %) - provides precise undervoltage detection without external circuitry |
| Auto-Discharge Resistance | 100 Ω typical - discharges 1 µF output capacitor in <1 ms upon disable, preventing residual bias |
| Thermal Shutdown | 160 °C junction temperature with 20 °C hysteresis - protects against sustained overload without latch-up |
Pinout & Package
TSC75-6L package: 1.6 mm × 1.6 mm × 0.55 mm, Pb-free, RoHS-compliant, industrial temperature grade (-40 °C to +85 °C).
| Pin/Terminal | 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 thermal and electrical return path - must connect to large PCB ground plane for thermal management |
| 3 (VIN) | Input supply | Accepts 2.2–6.0 V input; requires 1 µF ceramic bypass capacitor to GND for stability and noise rejection |
| 4 (VOUT) | Regulated output | Delivers 4.6 V ±2.5 %; stable with ≥1 µF ceramic output capacitor; supports 330 mA peak current |
| 5 (NC) | No connection | Internally unconnected - must remain floating; no external tie required |
| 6 (POK) | Power-OK open-drain flag | Asserts low when VOUT drops below 93 % of nominal; requires external pull-up to VIN or VOUT for logic-level signaling |
Key Features
| Feature | Design Value |
|---|---|
| POK error flag with hysteresis | Provides reliable system-level power-good monitoring without external comparators or resistive dividers |
| Integrated 100 Ω auto-discharge | Eliminates need for external discharge FET or resistor network, reducing BOM count and board area |
| 1.0 % initial output accuracy | Reduces margining requirements in precision analog or RF supply rails, lowering overall system tolerance stack-up |
| Stable with 1 µF ceramic output cap | Enables use of small, low-cost, high-reliability MLCCs instead of larger tantalum or aluminum electrolytics |
| Thermal and short-circuit protection | Guarantees safe operation under fault conditions up to 330 mA short-circuit current and 160 °C junction temperature |
Applications
| Cellular Handset RF Front-End | Wireless Modem Baseband Core |
|---|---|
Use Scenario: Powering low-noise amplifiers and mixer stages in GSM/UMTS transceivers where supply ripple directly impacts EVM and adjacent channel leakage. IC Role / Device Role / Timing Role: Primary LDO delivering clean 4.6 V bias to RF ICs; POK monitors rail integrity during power-up and brownout events. Use Value: 350 µV(rms) output noise (10 Hz–100 kHz) and 72 dB PSRR at 1 kHz ensure minimal phase noise degradation in local oscillator paths. | Use Scenario: Supplying voltage to ARM9/ARM11 application processors and baseband DSPs in 3G modems operating across wide temperature ranges. IC Role / Device Role / Timing Role: Fixed-output LDO with POK flag providing supervised power to processor I/O and memory interfaces during boot sequence. Use Value: 135 mV dropout allows operation down to 4.735 V input, maximizing usable capacity from single-cell Li-ion batteries. |
| Digital Camera Image Sensor Bias | PDA Application Processor Core |
Use Scenario: Delivering tightly regulated 4.6 V to CMOS image sensor analog front-ends where supply variation causes fixed-pattern noise and gain drift. IC Role / Device Role / Timing Role: Precision LDO with 1.0 % output accuracy and POK confirmation ensuring sensor initialization completes only when rail is valid. Use Value: 1.0 % initial accuracy and ±2.5 % over temperature reduce calibration overhead and improve pixel uniformity across operating conditions. | Use Scenario: Powering 4.6 V I/O domains of application processors in PDAs with aggressive power cycling and thermal constraints. IC Role / Device Role / Timing Role: Low-quiescent LDO with EN control and POK feedback enabling coordinated power sequencing with PMIC and FPGA logic. Use Value: 35 µA ground current at light load and <1 µA shutdown current extend battery runtime during display-off and suspend states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-4602E/MB | 4.6 V fixed, 250 mA output, 600 mV dropout at full load, no POK pin, 1.5 % accuracy | Lacks power-good signaling; higher dropout limits usable battery range | Select when POK is unnecessary and higher output current is required |
| TPS79546DBVR | 4.6 V fixed, 500 mA output, 170 mV dropout at full load, POK pin, 2 % accuracy, 16 V max input | Higher input voltage rating and current capability but larger TSOT-23-6 footprint and higher quiescent current (230 µA) | Select when system requires >150 mA or operates from higher input sources (e.g., USB + wall adapter) |
Compared with MCP1703T-4602E/MB and TPS79546DBVR, the SIP21107DVP-46-E3 offers superior dropout performance (135 mV vs. 600/170 mV), lower ground current (35 µA vs. 3.5 µA/230 µA), and tighter output accuracy (±2.5 % vs. ±3 %/±2 %), making it optimal for space-constrained, battery-sensitive RF and portable applications where POK supervision is critical.
Availability
SIP21107DVP-46-E3 is available at Aetrix Electronics and suitable for cellular handsets, wireless modems, and digital cameras requiring stable component supply with verified end-of-life status and legacy inventory support.
Supply support for SIP21107DVP-46-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 and manufactures high-performance discrete semiconductors and integrated power solutions for demanding analog and power management applications.
The SiP21107 series is part of Vishay's low-noise, low-dropout LDO family targeting portable electronics with integrated POK supervision, designed specifically for RF and battery-powered systems requiring precision voltage regulation and fault monitoring.
FAQ
What is the POK threshold voltage for SIP21107DVP-46-E3?
The POK threshold for SIP21107DVP-46-E3 is defined as 93 % of the nominal output voltage (i.e., 4.28 V for a 4.6 V output), with ±3 % tolerance over temperature. POK asserts low when VOUT falls below this threshold and returns high after hysteresis recovery. This behavior is confirmed in the device's Electrical Characteristics table and functional block diagram.
Does SIP21107DVP-46-E3 require an external bypass capacitor on the BP pin?
No, SIP21107DVP-46-E3 does not require a bypass capacitor on the BP pin because it is configured as a POK (Power-OK) output-not a noise-bypass function. That feature applies only to the SiP21106 variant. The SIP21107DVP-46-E3 uses pin 6 exclusively for the open-drain POK signal and has no BP functionality.
What is the maximum allowable input voltage for SIP21107DVP-46-E3?
The absolute maximum input voltage for SIP21107DVP-46-E3 is 6.5 V, but the recommended operating range is 2.2 V to 6.0 V per the datasheet's Recommended Operating Range table. Operation above 6.0 V risks exceeding safe power dissipation limits, especially at elevated ambient temperatures.
Can SIP21107DVP-46-E3 be used with ceramic output capacitors smaller than 1 µF?
No-SIP21107DVP-46-E3 requires a minimum 1 µF ceramic output capacitor for guaranteed stability across the full -40 °C to +85 °C temperature range. The datasheet specifies stability with "6 nF/mA" capacitance, which equates to ~1 µF at 150 mA load. Using smaller values may cause oscillation or degraded transient response.
Is SIP21107DVP-46-E3 still in production or available for new designs?
SIP21107DVP-46-E3 is End of Life (EOL) with last available purchase date of 31-Dec-2014, as stated in Vishay document 74442 Rev. G. Aetrix Electronics maintains legacy inventory and supports obsolescence management, including cross-reference guidance and long-term supply planning for existing production programs.
SIP21107DVP-46-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):
- 4.6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.22V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 85 µA
- Current - Supply (Max):
- -
- PSRR:
- 72dB ~ 38dB (1kHz ~ 100kHz)
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerPAK® TSC75-6
SIP21107DVP-46-E3 FAQ
1.How can I place an order for SIP21107DVP-46-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP21107DVP-46-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 SIP21107DVP-46-E3 reliable?
The price and inventory of SIP21107DVP-46-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SIP21107DVP-46-E3 is usually 5 days.
3.What payment methods are accepted for SIP21107DVP-46-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP21107DVP-46-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP21107DVP-46-E3?
SIP21107DVP-46-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP21107DVP-46-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 SIP21107DVP-46-E3?
For technical support, including SIP21107DVP-46-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP21107DVP-46-E3 requirements.
6.How does Aetrix verify that SIP21107DVP-46-E3 is sourced from the original manufacturer or authorized distributors?
All SIP21107DVP-46-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 SIP21107DVP-46-E3 meets industry standards.
7.What is the process for return or replacement of SIP21107DVP-46-E3?
All SIP21107DVP-46-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SIP21107DVP-46-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 SIP21107DVP-46-E3 part is unused and in its original packaging.
Return procedure for SIP21107DVP-46-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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