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Vishay Siliconix SIP21107DVP-25-E3
- Part No.:
- SIP21107DVP-25-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- PowerPAK® TSC-75-6
- Datasheet:
-
SIP21107DVP-25-E3.pdf
- Description:
- IC REG LIN 2.5V 150MA TSC75-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,948
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Product details
Overview
SIP21107DVP-25-E3 from Vishay Siliconix is a 2.5 V fixed-output, 150 mA low-noise low-dropout (LDO) regulator with Power-OK (POK) error flag output and no external noise bypass capacitor required. It features 135 mV dropout at 150 mA, 1.0 % output voltage accuracy at 25 °C, and operates across -40 °C to +85 °C ambient temperature in TSC75-6L package. It is designed for RF-sensitive portable electronics such as wireless handsets and digital cameras.
For engineers reviewing the SIP21107DVP-25-E3 datasheet, SIP21107DVP-25-E3 pinout, SIP21107DVP-25-E3 application, or SIP21107DVP-25-E3 equivalent, key selection criteria include POK functionality, ultra-low ground current (35 µA typ. at 1 mA), shutdown current ≤1 µA, auto-discharge capability, and compatibility with 1 µF ceramic output capacitors.
Technical Context
The SIP21107DVP-25-E3 uses an internal P-channel MOSFET pass transistor (0.9 Ω typical RDS(on)) and a 1.2 V bandgap reference to achieve precise regulation. Its error amplifier compares feedback voltage against the reference and drives the PMOS gate to maintain output stability under varying load and line conditions.
The POK (Power OK) function monitors VOUT relative to VIN, asserting low when output falls below 90–96 % of nominal voltage (e.g., <2.25 V for 2.5 V output). The open-drain POK pin requires an external pull-up resistor and provides fault indication during dropout, overcurrent, or thermal shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2.5 % over full temperature range (-40 °C to +85 °C); enables direct replacement of 2.5 V logic rails without external resistors. |
| Dropout Voltage | 135 mV at 150 mA load; allows operation with input as low as 2.635 V while maintaining regulation - critical for single-cell Li-ion or alkaline battery systems. |
| Ground Current | 35 µA typical at 1 mA load; minimizes standby power loss and extends battery life in always-on subsystems. |
| Shutdown Current | ≤1 µA maximum at 85 °C; ensures negligible battery drain during deep sleep modes. |
| POK Threshold | 90–96 % of VOUT (i.e., 2.25–2.40 V for 2.5 V output); provides reliable power-good signaling before system initialization. |
| Output Auto-Discharge | 100 Ω NMOS discharge path; discharges 1 µF output capacitor to ground in <1 ms upon EN deactivation - prevents floating voltage on powered-down rails. |
| Thermal Protection | 160 °C junction 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 ultra-thin lead-free surface-mount package with exposed thermal pad; rated for industrial temperature range (-40 °C to +85 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable input | Active-high logic control; device enabled when ≥1.2 V applied, disabled when ≤0.4 V; connect to VIN if unused - prevents floating state. |
| 2 (GND) | Ground reference and thermal path | Primary return path for all currents; must be connected to large PCB ground plane for optimal thermal performance and noise immunity. |
| 3 (VIN) | Input supply | Accepts 2.2–6.0 V input; requires 1 µF ceramic bypass capacitor to ground near pin for stability and line-transient suppression. |
| 4 (VOUT) | Regulated output | Delivers stable 2.5 V ±2.5 %; supports 150 mA continuous / 330 mA peak load; compatible with 1 µF low-ESR ceramic output capacitor. |
| 5 (NC) | No connection | Internally unconnected; must remain unconnected on PCB - no routing or soldering allowed. |
| 6 (POK) | Open-drain Power-OK flag | Asserts low when VOUT drops below threshold; requires external pull-up to VIN or VOUT; sinks up to 0.5 mA for microcontroller reset or sequencing logic. |
Key Features
| Feature | Design Value |
|---|---|
| No external noise bypass capacitor required | Eliminates need for 10 nF BP capacitor - reduces BOM count and board area vs. SiP21106 family members. |
| Integrated POK (Power OK) output | Provides system-level power monitoring without external comparators or voltage dividers - simplifies power sequencing in multi-rail designs. |
| Auto-discharge on shutdown | 100 Ω internal NMOS rapidly discharges output capacitance - avoids unintended wake-up or latch-up in downstream circuitry. |
| Low ground current at light load | 35 µA typical at 1 mA enables >1-year battery life in low-duty-cycle sensor nodes operating from coin cells. |
| Short-circuit and thermal protection | 330 mA typical current limit and 160 °C thermal shutdown prevent catastrophic failure during fault conditions - improves field reliability. |
Applications
| Cellular Radio Subsystem | Wireless Modem Power Management |
|---|---|
Use Scenario: Supplying RF transceiver ICs (e.g., Bluetooth/Wi-Fi SoCs) requiring ultra-clean 2.5 V bias with minimal ripple. IC Role / Device Role / Timing Role: Low-noise LDO providing regulated 2.5 V rail with POK confirmation prior to RF activation. Use Value: Eliminates need for external noise filtering components; POK signal synchronizes RF enable with stable voltage, preventing transmit errors. | Use Scenario: Powering baseband processor I/O banks in LTE/5G modems where supply sequencing and fault detection are mandatory. IC Role / Device Role / Timing Role: Primary 2.5 V supply with integrated POK used for hardware reset assertion and firmware boot validation. Use Value: Reduces external supervision circuitry; auto-discharge ensures clean power-down of modem interfaces during sleep transitions. |
| Digital Camera Image Sensor Bias | Portable Medical Diagnostic Device |
Use Scenario: Delivering low-noise 2.5 V to CMOS image sensor analog front-end (AFE) to minimize fixed-pattern noise. IC Role / Device Role / Timing Role: Precision LDO supplying AFE core voltage with POK confirming readiness before frame capture. Use Value: Achieves <60 µV RMS noise floor without BP cap; POK eliminates timing uncertainty in high-speed image acquisition sequences. | Use Scenario: Powering ADC reference buffers and low-power microcontrollers in handheld ECG or pulse oximeter units. IC Role / Device Role / Timing Role: Main 2.5 V supply enabling safe shutdown and rapid re-powering during patient measurement cycles. Use Value: 1 µA max shutdown current preserves battery charge between measurements; auto-discharge prevents residual voltage from affecting next measurement baseline. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2502E/TT | 250 mA output, 1.6 µA quiescent current, no POK pin, SC70-5 package | Lacks power-good signaling; requires external supervisor for sequencing | Select when higher output current and lower IQ are prioritized over fault reporting capability. |
| TPS78025DDCR | 200 mA output, 500 nA IQ, POK output, 1.2 V to 5.5 V input, SOT-23-5 package | Lower IQ but larger footprint; POK threshold fixed at 92 % of VOUT | Select when nanoscale IQ dominates design requirements and board space permits SOT-23-5. |
Compared with MCP1700T-2502E/TT and TPS78025DDCR, the SIP21107DVP-25-E3 offers balanced performance: moderate IQ (35 µA), integrated POK with adjustable threshold (90–96 %), and ultra-compact TSC75-6L footprint - making it optimal for space-constrained, fault-aware portable systems.
Availability
SIP21107DVP-25-E3 is available at Aetrix Electronics and suitable for cellular phones, wireless modems, digital cameras, and portable medical devices requiring stable component supply despite end-of-life status.
Supply support for SIP21107DVP-25-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 is a global semiconductor manufacturer specializing in discrete power MOSFETs, diodes, optoelectronics, and precision analog ICs with emphasis on high-reliability industrial and automotive applications.
The SiP21107 series belongs to Vishay's low-noise LDO product line, engineered specifically for battery-powered RF and imaging systems where POK signaling, compact packaging, and ultra-low ground current are essential.
FAQ
What is the minimum input voltage required for SIP21107DVP-25-E3 to regulate at 2.5 V output?
The SIP21107DVP-25-E3 requires a minimum input voltage of 2.635 V to maintain regulation at 2.5 V output under 150 mA load, based on its 135 mV dropout specification. At lighter loads, input can be as low as 2.6 V. Input below 2.2 V is prohibited per absolute maximum ratings.
Does SIP21107DVP-25-E3 require an external bypass capacitor on the POK pin?
No, the SIP21107DVP-25-E3 does not require an external bypass capacitor on the POK pin. Unlike the SiP21106 variant which uses a BP pin needing a 10 nF capacitor, the SIP21107DVP-25-E3 integrates internal noise filtering for its POK comparator - eliminating that external component.
How does the POK pin behave during startup and fault conditions for SIP21107DVP-25-E3?
During startup, the POK pin remains low until VOUT reaches 90–96 % of 2.5 V (2.25–2.40 V), then transitions high. It goes low again during dropout, short-circuit, or thermal shutdown. As an open-drain output, it requires an external pull-up resistor to VIN or VOUT to assert the high state.
Can SIP21107DVP-25-E3 be used with ceramic output capacitors smaller than 1 µF?
Yes, the SIP21107DVP-25-E3 is stable with output capacitance as low as 6 nF/mA (≈0.9 µF at 150 mA). However, 1 µF is recommended for guaranteed stability across temperature and process variation. Capacitors below 0.68 µF may compromise load-transient response and PSRR.
What is the thermal resistance (θJA) of SIP21107DVP-25-E3 in the TSC75-6L package?
The SIP21107DVP-25-E3 in TSC75-6L package has a junction-to-ambient thermal resistance (θJA) of 131 °C/W when mounted on a multilayer 1S2P PCB with all leads soldered. Derating is required above 70 °C ambient: 7.6 mW/°C reduction in allowable power dissipation.
SIP21107DVP-25-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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 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-25-E3 FAQ
1.How can I place an order for SIP21107DVP-25-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP21107DVP-25-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-25-E3 reliable?
The price and inventory of SIP21107DVP-25-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-25-E3 is usually 5 days.
3.What payment methods are accepted for SIP21107DVP-25-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP21107DVP-25-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP21107DVP-25-E3?
SIP21107DVP-25-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP21107DVP-25-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-25-E3?
For technical support, including SIP21107DVP-25-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP21107DVP-25-E3 requirements.
6.How does Aetrix verify that SIP21107DVP-25-E3 is sourced from the original manufacturer or authorized distributors?
All SIP21107DVP-25-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-25-E3 meets industry standards.
7.What is the process for return or replacement of SIP21107DVP-25-E3?
All SIP21107DVP-25-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SIP21107DVP-25-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-25-E3 part is unused and in its original packaging.
Return procedure for SIP21107DVP-25-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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