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Vishay Siliconix SIP21107DVP-33-E3
- Part No.:
- SIP21107DVP-33-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- PowerPAK® TSC-75-6
- Datasheet:
-
SIP21107DVP-33-E3.pdf
- Description:
- IC REG LIN 3.3V 150MA TSC75-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,756
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Product details
Overview
SIP21107DVP-33-E3 from Vishay Siliconix is a 3.3 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 across -40 °C to +85 °C ambient. It delivers stable power to noise-sensitive RF sections in portable wireless handsets and digital cameras.
For engineers reviewing the SIP21107DVP-33-E3 datasheet, SIP21107DVP-33-E3 pinout, SIP21107DVP-33-E3 application, or SIP21107DVP-33-E3 equivalent, key selection criteria include POK functionality, ultra-low ground current (35 µA typ. at 1 mA), auto-discharge capability (100 Ω internal pull-down), thermal/short-circuit protection, and compatibility with 1 µF ceramic output capacitors.
Technical Context
The SIP21107DVP-33-E3 uses a P-channel MOSFET pass transistor with 0.9 Ω typical on-resistance and a 1.2 V bandgap reference for precision regulation. Its error amplifier compares feedback against this reference to control gate voltage and maintain output stability under varying load and input conditions.
It integrates an open-drain POK comparator monitoring VOUT relative to VIN, with 93 % threshold (±3 %) and 1.5 % hysteresis, requiring an external pull-up resistor. Shutdown mode reduces supply current to ≤1 µA at 85 °C while activating internal 100 Ω NMOS discharge path to ground.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2.5 % over -40 °C to +85 °C - ensures stable core logic supply for microcontrollers in portable devices. |
| Dropout Voltage | 135 mV at 150 mA load - enables regulation down to VIN = 3.435 V, extending battery runtime in single-cell Li-ion systems. |
| Ground Current | 35 µA typical at 1 mA load - minimizes quiescent drain during standby, critical for long battery life in always-on subsystems. |
| POK Threshold | 93 % of nominal VOUT (±3 %) - provides reliable power-good signaling for system sequencers without external monitoring circuitry. |
| Shutdown Current | ≤1 µA maximum at 85 °C - guarantees ultra-low leakage during deep sleep modes in handheld electronics. |
| Output Auto-Discharge | 100 Ω internal NMOS pull-down - discharges 1 µF output capacitor in <1 ms upon EN deactivation, preventing floating rail issues. |
| Thermal Protection | 160 °C shutdown with 20 °C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
TSC75-6L package: 1.6 mm × 1.6 mm × 0.55 mm, Pb-free, RoHS-compliant, industrial temperature range (-40 °C to +85 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable input | Active-high logic control; <0.4 V disables regulator and triggers auto-discharge; connect to VIN if unused. |
| 2 (GND) | Ground reference and thermal path | Must be connected to large copper plane for both electrical return and heat dissipation (derating: 7.6 mW/°C above 70 °C). |
| 3 (VIN) | Input supply | Accepts 2.2–6.0 V; requires 1 µF ceramic bypass capacitor to GND for stability and line-transient immunity. |
| 4 (VOUT) | Regulated output | Delivers 3.3 V at up to 150 mA; stable with ≥1 µF ceramic output capacitor (ESR < 0.4 Ω). |
| 5 (NC) | No connection | Internally unconnected; no external tie required; leave floating or grounded per layout convenience. |
| 6 (POK) | Open-drain Power-OK flag | Drives low when VOUT falls below 93 % of nominal; requires external pull-up to VIN or VOUT for system-level fault detection. |
Key Features
| Feature | Design Value |
|---|---|
| POK Error Flag Output | Provides system-level power sequencing and fault indication without external comparators or resistive dividers. |
| No External Bypass Capacitor Required | Eliminates need for BP capacitor (unlike SiP21106), simplifying BOM and reducing board area in space-constrained designs. |
| Auto-Discharge on Shutdown | Internal 100 Ω NMOS rapidly drains output capacitance, preventing unintended wake-up or latch-up in multi-rail systems. |
| Thermal and Short-Circuit Protection | Enables robust operation in harsh environments; limits peak current to 330 mA typical and shuts down at 160 °C junction temperature. |
| Ultra-Low Ground Current | 35 µA typical at light load extends battery life in intermittently active applications such as sensor nodes and remote controls. |
Applications
| Cellular Handset RF Subsystem | Digital Camera Image Sensor Bias |
|---|---|
Use Scenario: Powering RF transceiver LNA and mixer stages in GSM/UMTS handsets where supply noise directly impacts EVM and adjacent channel leakage. IC Role / Device Role / Timing Role: Low-noise, fixed 3.3 V bias regulator with POK confirmation ensuring clean startup before RF transmission begins. Use Value: 350 µV(rms) output noise (10 Hz–100 kHz) avoids baseband interference; POK synchronizes RF enable timing with stable VOUT. | Use Scenario: Supplying analog front-end and CCD/CMOS image sensor bias rails in compact digital cameras requiring fast turn-on and rail discharge between frames. IC Role / Device Role / Timing Role: Primary 3.3 V LDO with 70 µs turn-on time and 100 Ω auto-discharge path enabling precise frame-synchronized power gating. Use Value: 135 mV dropout allows operation from partially discharged batteries; POK signals readiness to image processor before exposure. |
| Wireless Modem Baseband Core | PDA Application Processor I/O Rail |
Use Scenario: Delivering regulated 3.3 V to baseband DSP and memory interfaces in embedded wireless modems operating in variable-temperature industrial enclosures. IC Role / Device Role / Timing Role: Industrial-grade LDO with -40 °C to +85 °C operation and thermal shutdown protecting against enclosure overheating. Use Value: 1.0 % initial accuracy and ±2.5 % full-temperature tolerance ensure consistent I/O voltage margins; POK validates supply before firmware boot. | Use Scenario: Powering I/O banks of ARM-based application processors in PDAs where multiple voltage domains require coordinated sequencing and fault reporting. IC Role / Device Role / Timing Role: Dedicated 3.3 V I/O rail regulator with POK output feeding system PMIC or FPGA configuration logic. Use Value: Open-drain POK supports wired-OR fault bus architectures; 1 µA shutdown current preserves backup battery during suspend-to-RAM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1826-3302E/DB | 3.3 V fixed, 300 mA output, 250 mV dropout at full load, no POK pin, 65 µA ground current at 1 mA | Lacks POK functionality; higher dropout limits usable input range; higher quiescent current reduces battery life | Select only if POK is unnecessary and higher output current is required; verify thermal derating for TSC75-6L footprint compatibility. |
| TLC7733QPWRQ1 | 3.3 V fixed, 150 mA, integrated reset timer instead of POK, 120 µA ground current, automotive AEC-Q100 qualified | Provides reset timeout instead of real-time POK; higher quiescent current; automotive qualification adds cost and qualification overhead | Choose for automotive infotainment modules needing AEC-Q100 compliance; not suitable for consumer portables due to cost and current penalty. |
Compared with MCP1826-3302E/DB and TLC7733QPWRQ1, SIP21107DVP-33-E3 offers superior POK accuracy (±3 % vs. no POK or timer-based reset), lower ground current (35 µA vs. 65–120 µA), and tighter output tolerance (±2.5 % vs. ±3 %), making it optimal for battery-sensitive, noise-critical portable designs requiring precise power-good signaling.
Availability
SIP21107DVP-33-E3 is available at Aetrix Electronics and suitable for cellular handsets, digital cameras, and wireless modems requiring stable component supply with known end-of-life status and legacy inventory support.
Supply support for SIP21107DVP-33-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 SiP21107 series targets portable and battery-powered applications requiring ultra-low quiescent current, precise voltage regulation, and integrated fault reporting-specifically engineered for RF, imaging, and handheld communication subsystems.
FAQ
What is the POK threshold voltage for SIP21107DVP-33-E3?
The POK threshold for SIP21107DVP-33-E3 is 93 % of its nominal 3.3 V output, i.e., 3.069 V, with ±3 % tolerance over temperature. It asserts high when VOUT rises above this level and goes low during dropout, overcurrent, or thermal shutdown. This behavior is confirmed in the device's Electrical Characteristics table and functional block diagram.
Does SIP21107DVP-33-E3 require an external bypass capacitor?
No, SIP21107DVP-33-E3 does not require an external bypass capacitor. Unlike the SiP21106 variant, the SiP21107 eliminates the BP pin and associated 10 nF capacitor requirement. The SIP21107DVP-33-E3 achieves stable operation using only 1 µF input and output ceramic capacitors, simplifying layout and reducing BOM count.
What is the maximum allowable input voltage for SIP21107DVP-33-E3?
The absolute maximum input voltage for SIP21107DVP-33-E3 is 6.5 V, but the recommended operating range is 2.2 V to 6.0 V. Operation above 6.0 V risks exceeding safe power dissipation limits, especially at elevated ambient temperatures, and may trigger thermal shutdown. Always refer to the Absolute Maximum Ratings and Derating curves in the official Vishay datasheet for SIP21107DVP-33-E3.
How does the auto-discharge function work on SIP21107DVP-33-E3?
When the EN pin is pulled low, SIP21107DVP-33-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 under 1 ms, preventing residual voltage from interfering with downstream logic or causing unintended resets. The feature is intrinsic to SIP21107DVP-33-E3 and requires no external components.
Is SIP21107DVP-33-E3 still in production?
No, SIP21107DVP-33-E3 is End of Life (EOL) with last available purchase date of 31-Dec-2014. Aetrix Electronics maintains legacy inventory and supports obsolescence management, including cross-reference guidance, lifetime buy planning, and alternative sourcing for ongoing production programs dependent on SIP21107DVP-33-E3.
SIP21107DVP-33-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):
- 3.3V
- 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-33-E3 FAQ
1.How can I place an order for SIP21107DVP-33-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP21107DVP-33-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-33-E3 reliable?
The price and inventory of SIP21107DVP-33-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-33-E3 is usually 5 days.
3.What payment methods are accepted for SIP21107DVP-33-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP21107DVP-33-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP21107DVP-33-E3?
SIP21107DVP-33-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP21107DVP-33-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-33-E3?
For technical support, including SIP21107DVP-33-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP21107DVP-33-E3 requirements.
6.How does Aetrix verify that SIP21107DVP-33-E3 is sourced from the original manufacturer or authorized distributors?
All SIP21107DVP-33-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-33-E3 meets industry standards.
7.What is the process for return or replacement of SIP21107DVP-33-E3?
All SIP21107DVP-33-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SIP21107DVP-33-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-33-E3 part is unused and in its original packaging.
Return procedure for SIP21107DVP-33-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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