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Vishay Siliconix SIP21107DVP-18-E3
- Part No.:
- SIP21107DVP-18-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- PowerPAK® TSC-75-6
- Datasheet:
-
SIP21107DVP-18-E3.pdf
- Description:
- IC REG LIN 1.8V 150MA TSC75-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,023
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Product details
Overview
SIP21107DVP-18-E3 from Vishay Siliconix is a 150-mA, low-noise, low-dropout linear regulator with fixed 1.8 V output, Power-OK (POK) error flag, and 135 mV dropout at full load. It features 1.0 % output voltage accuracy at 25 °C, 35 µA ground current at 1 mA load, and operates across -40 °C to +85 °C ambient temperature in TSC75-6L package. It serves as a stable, quiet power source for RF sections in portable wireless handsets.
For engineers reviewing the SIP21107DVP-18-E3 datasheet, SIP21107DVP-18-E3 pinout, SIP21107DVP-18-E3 application, or SIP21107DVP-18-E3 equivalent, key selection criteria include POK functionality, ultra-low ground current, dropout performance at 150 mA, thermal shutdown behavior, and compatibility with 1 µF ceramic output capacitors without external bypass.
Technical Context
The SIP21107DVP-18-E3 uses an internal P-channel MOSFET pass transistor (0.9 Ω typical RDS(on)) and a 1.2 V bandgap reference to regulate output voltage. Its error amplifier compares feedback against reference and drives the PMOS gate to maintain regulation under varying load and input conditions.
It integrates open-drain POK monitoring with 93 % nominal threshold (VOUT/VIN × 100 %), 1.5 % hysteresis, and 40 µs delay from VOUT rise to POK assertion. Shutdown mode enables auto-discharge via a 100 Ω NMOS pull-down, reducing output voltage to ground in <1 ms with 1 µF COUT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±2.5 % over -40 °C to +85 °C - ensures stable core logic supply for low-voltage microcontrollers. |
| Dropout Voltage | 135 mV at 150 mA load - enables operation down to VIN = 1.935 V while maintaining regulation. |
| Ground Current | 35 µA typical at 1 mA load - extends battery life in standby mode of portable devices. |
| POK Threshold | 93 % of VOUT (nominal), with 1.5 % hysteresis - provides reliable power-good signaling before system initialization. |
| Shutdown Current | ≤1 µA maximum at 85 °C - minimizes quiescent drain during deep sleep states. |
| Output Noise | 350 µV(rms) (10 Hz–100 kHz) - suitable for noise-sensitive analog/RF circuitry without external BP capacitor. |
| Thermal Protection | 160 °C junction shutdown with 20 °C hysteresis - prevents permanent damage during sustained overload. |
Pinout & Package
TSC75-6L package: 1.6 mm × 1.6 mm × 0.55 mm, Pb-free, 6-pin leadless surface-mount with exposed thermal pad (not electrically connected).
| 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 return path and thermal conduction node - must connect to large PCB ground plane for thermal management. |
| 3 (VIN) | Input supply | Accepts 2.2 V to 6 V; requires 1 µF ceramic bypass capacitor to GND for stability and line transient suppression. |
| 4 (VOUT) | Regulated output | Delivers 1.8 V ±2.5 %; supports 150 mA continuous, 330 mA peak; stable with ≥1 µF ceramic COUT. |
| 5 (NC) | No connection | Internally unconnected - no electrical function; must remain floating or grounded per layout best practice. |
| 6 (POK) | Open-drain error flag | Asserts low when VOUT falls below 93 % of nominal; requires external pull-up to VIN or VOUT for logic-level interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| No external noise bypass required | 350 µV(rms) output noise achieved without BP capacitor - simplifies BOM and board layout for space-constrained designs. |
| Integrated Power-OK (POK) monitor | Open-drain POK with precise 93 % threshold and 40 µs response - enables deterministic system power sequencing and fault detection. |
| Auto-discharge on shutdown | 100 Ω internal NMOS discharges 1 µF output capacitor in <1 ms - eliminates residual voltage that could interfere with downstream logic reset. |
| Robust protection suite | 330 mA current limit (typical) and 160 °C thermal shutdown with 20 °C hysteresis - allows safe operation under short-circuit or high-ambient conditions. |
| Ultra-low quiescent current | 35 µA ground current at 1 mA load - maintains >10-year shelf life in battery-powered IoT sensors with infrequent wake cycles. |
Applications
| Cellular Handset RF Front-End | Low-Power Microcontroller Core Supply |
|---|---|
Use Scenario: Powering LNA, mixer, and VCO stages in GSM/UMTS handset transceivers where supply ripple directly impacts EVM and adjacent channel leakage. IC Role / Device Role / Timing Role: Low-noise, fast-transient LDO delivering clean 1.8 V bias to analog RF blocks; POK signals readiness to baseband processor before TX ramp-up. Use Value: 350 µV(rms) noise and 135 mV dropout enable direct battery operation (≥2.0 V) while meeting 3GPP spectral mask requirements without additional filtering. | Use Scenario: Supplying 1.8 V core voltage to ARM Cortex-M0+ MCU in wearable health monitors operating from coin-cell batteries. IC Role / Device Role / Timing Role: Primary system regulator with POK-driven reset assertion; auto-discharge ensures clean power-down state for secure firmware boot verification. Use Value: 35 µA ground current at light load and <1 µA shutdown current extend usable battery life beyond 2 years in always-on sensing mode. |
| Digital Camera Image Sensor Bias | Wireless Modem Baseband IC Supply |
Use Scenario: Providing regulated 1.8 V to CMOS image sensor analog front-end and column ADC drivers during burst capture sequences. IC Role / Device Role / Timing Role: Stable LDO with fast load transient response (<50 µs recovery) and POK confirmation before frame exposure trigger. Use Value: 330 mA peak current capability handles sensor pixel readout surges; 1.0 % initial accuracy ensures consistent ADC reference scaling across temperature. | Use Scenario: Powering baseband DSP and memory interface in LTE Cat-1 IoT modems requiring guaranteed power-good signaling before link establishment. IC Role / Device Role / Timing Role: System power supervisor with POK tied to modem's RESET_N input; thermal protection prevents lockup during extended data transmission bursts. Use Value: 93 % POK threshold and 1.5 % hysteresis prevent false resets during input voltage sag caused by antenna switching transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1802E/TT | 300 mA rated, 1.8 V fixed, no POK pin, 6 µA quiescent current, SOT-23-5 package | Lacks power-good monitoring; suited for non-critical digital rails where sequencing is handled externally | Select when POK is unnecessary and lowest possible IQ dominates design priority |
| Torex XC6206P182MR-G | 150 mA rated, 1.8 V fixed, no POK, 1 µA shutdown current, SOT-25 package | Missing error flag and auto-discharge; lower shutdown current but no fault reporting capability | Select for ultra-low-power sleep modes where POK sequencing is not required |
Compared with MCP1700T-1802E/TT and XC6206P182MR-G, SIP21107DVP-18-E3 uniquely delivers integrated POK monitoring and active output discharge-critical for deterministic power sequencing and fail-safe shutdown in portable RF systems-while maintaining competitive ground current and dropout performance.
Availability
SIP21107DVP-18-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 SIP21107DVP-18-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 industrial and consumer applications.
The SiP21107 series was developed specifically for battery-powered portable electronics needing low-noise, low-quiescent-current regulation with integrated power-status signaling-targeting RF subsystems and microcontroller cores in space-constrained designs.
FAQ
What is the POK threshold voltage for SIP21107DVP-18-E3?
The POK threshold for SIP21107DVP-18-E3 is defined as a percentage of VOUT, not an absolute voltage. It asserts high when VOUT reaches 93 % of its nominal 1.8 V value (i.e., ≥1.674 V), with 1.5 % hysteresis. This means POK goes low when VOUT drops below approximately 1.649 V. The SIP21107DVP-18-E3 does not specify a fixed voltage threshold because POK tracks output regulation directly.
Does SIP21107DVP-18-E3 require an external bypass capacitor on the BP pin?
No, SIP21107DVP-18-E3 does not require an external bypass capacitor on the BP pin. Unlike the SiP21106 variant, the SiP21107 uses internal compensation and achieves 350 µV(rms) output noise (10 Hz–100 kHz) without any external BP capacitor. The BP/Adj/POK pin on SIP21107DVP-18-E3 functions solely as the open-drain POK output and must be pulled up externally.
What is the maximum allowable input voltage for SIP21107DVP-18-E3?
The absolute maximum input voltage for SIP21107DVP-18-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. For reliable long-term operation with 1.8 V output, VIN should remain ≤6.0 V to stay within thermal limits of the TSC75-6L package.
How does the auto-discharge function work on SIP21107DVP-18-E3?
When the EN pin is driven low, SIP21107DVP-18-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 VOUT in under 1 ms. The SIP21107DVP-18-E3 specification confirms this behavior is inherent and requires no external components.
Is SIP21107DVP-18-E3 still in production or available for new designs?
SIP21107DVP-18-E3 is End of Life (EOL) with Last Available Purchase Date of 31-Dec-2014. However, Aetrix Electronics maintains legacy inventory and offers traceable, tested units for repair, maintenance, and legacy production continuity. Engineering samples and full documentation remain accessible to support validation and qualification of existing designs.
SIP21107DVP-18-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):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- 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-18-E3 FAQ
1.How can I place an order for SIP21107DVP-18-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP21107DVP-18-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-18-E3 reliable?
The price and inventory of SIP21107DVP-18-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-18-E3 is usually 5 days.
3.What payment methods are accepted for SIP21107DVP-18-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP21107DVP-18-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP21107DVP-18-E3?
SIP21107DVP-18-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP21107DVP-18-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-18-E3?
For technical support, including SIP21107DVP-18-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP21107DVP-18-E3 requirements.
6.How does Aetrix verify that SIP21107DVP-18-E3 is sourced from the original manufacturer or authorized distributors?
All SIP21107DVP-18-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-18-E3 meets industry standards.
7.What is the process for return or replacement of SIP21107DVP-18-E3?
All SIP21107DVP-18-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SIP21107DVP-18-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-18-E3 part is unused and in its original packaging.
Return procedure for SIP21107DVP-18-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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