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Vishay Siliconix SIP21106DVP-12-E3
- Part No.:
- SIP21106DVP-12-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- PowerPAK® TSC-75-6
- Datasheet:
-
SIP21106DVP-12-E3.pdf
- Description:
- IC REG LIN 1.2V 150MA TSC75-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,254
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Product details
Overview
SIP21106DVP-12-E3 from Vishay Siliconix is a 150 mA, 1.2 V fixed-output low-dropout (LDO) voltage regulator in TSC75-6L package, featuring 135 mV dropout at full load, 60 µV(rms) output noise (10 Hz–100 kHz), and ±1.0 % output voltage accuracy at 25 °C. It delivers ultra-low ground current (35 µA typ. at 1 mA) and supports battery-powered RF systems requiring quiet, stable bias.
For engineers reviewing the SIP21106DVP-12-E3 datasheet, SIP21106DVP-12-E3 pinout, SIP21106DVP-12-E3 application, or SIP21106DVP-12-E3 equivalent, key selection criteria include dropout performance under 150 mA load, BP-pin noise bypassing with 10 nF capacitor, auto-discharge capability during shutdown, and compatibility with 1 µF ceramic output capacitors in space-constrained portable designs.
Technical Context
The SIP21106DVP-12-E3 uses a P-channel MOSFET pass transistor with 0.9 Ω typical on-resistance and a 1.2 V bandgap reference to achieve precise regulation. Its error amplifier compares feedback against the internal reference and drives the PMOS gate to maintain output stability across load and line variations.
It integrates active pull-down (100 Ω NMOS) for output discharge during EN deactivation, thermal shutdown at 160 °C (with 20 °C hysteresis), and short-circuit protection limiting peak current to 330 mA. The BP pin enables external 10 nF capacitor filtering to suppress output noise without compromising startup time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V ±1.0 % at 25 °C - ensures stable core/bias rail for low-voltage logic and RF ICs |
| Dropout Voltage | 135 mV at 150 mA load - enables operation down to VIN = 1.335 V while maintaining regulation |
| Output Noise | 60 µV(rms), 10 Hz–100 kHz with 10 nF BP cap - meets stringent noise requirements for RF front-ends and ADC references |
| Ground Current | 35 µA typical at 1 mA load - extends battery life in always-on standby modes |
| Shutdown Current | ≤1 µA at 85 °C - minimizes leakage drain during system sleep |
| Auto-Discharge Resistance | 100 Ω NMOS pull-down - discharges 1 µF output capacitor in <1 ms upon shutdown |
| Thermal Shutdown | 160 °C junction threshold with 20 °C hysteresis - prevents permanent damage during sustained overload |
Pinout & Package
TSC75-6L package: 1.6 mm × 1.6 mm × 0.55 mm, lead-free, industrial temperature range (−40 °C to +85 °C ambient).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Enable control input | Active-high logic: ≥1.2 V enables regulation; ≤0.4 V disables output and activates auto-discharge |
| 2 - GND | Power ground reference | Primary thermal path - must connect directly 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 ground for stability and noise rejection |
| 4 - VOUT | Regulated output | Delivers 1.2 V ±1.0 %; stable with ≥1 µF ceramic output capacitor (ESR < 0.4 Ω) |
| 5 - NC | No connection | Internally unconnected - must remain floating; no external tie required |
| 6 - BP | Noise bypass terminal | Connects to 10 nF ceramic capacitor to ground to reduce output noise by >10× vs. no-BP configuration |
Key Features
| Feature | Design Value |
|---|---|
| P-channel MOSFET pass element | Eliminates base-drive current loss - achieves 35 µA ground current vs. >100 µA typical for PNP-based LDOs |
| BP pin with 10 nF bypass | Reduces output noise to 60 µV(rms) across full 1–150 mA load range - critical for RF power amplifier biasing |
| Integrated auto-discharge | 100 Ω NMOS pull-down ensures rapid VOUT collapse (<1 ms for 1 µF) - prevents unintended back-powering of downstream circuitry |
| Short-circuit and thermal protection | 330 mA current limit and 160 °C thermal shutdown prevent failure during fault conditions - enables robust field deployment |
| Ultra-thin TSC75-6L package | 0.55 mm height enables use in slim handhelds and wearables where Z-height is constrained |
Applications
| Cellular Phone Baseband Power | Wireless Modem RF Bias |
|---|---|
|
Use Scenario: Supplying 1.2 V core voltage to baseband processor in GSM/UMTS handsets with tight battery voltage headroom. IC Role / Device Role / Timing Role: Primary LDO delivering regulated core rail with minimal dropout and ultra-low quiescent current. Use Value: Enables operation down to 1.335 V input while maintaining 1.2 V output - extends usable battery range by ~12% versus higher-dropout alternatives. |
Use Scenario: Providing clean 1.2 V bias to power amplifier driver stages in LTE/Wi-Fi modems. IC Role / Device Role / Timing Role: Low-noise post-regulator isolating PA bias from noisy system rails. Use Value: 60 µV(rms) noise floor prevents AM-to-PM distortion and maintains EVM compliance under dynamic load. |
| Digital Camera Image Sensor Core | MP3 Player DSP Core Supply |
|
Use Scenario: Powering 1.2 V digital core of CMOS image sensor in compact camera modules. IC Role / Device Role / Timing Role: Fixed-output LDO with fast transient response for burst-mode pixel readout. Use Value: Active pull-down discharges sensor's internal capacitance rapidly between frames - eliminates ghosting artifacts. |
Use Scenario: Delivering stable 1.2 V to audio DSP in portable MP3 players powered by single-cell Li-ion. IC Role / Device Role / Timing Role: Low-quiescent LDO supporting long playback time and instant wake-from-sleep. Use Value: 35 µA ground current at light load extends battery runtime by >8 hours per charge versus standard LDOs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1202E/TT | 150 mA, 1.2 V fixed, SOT-23-5; 170 mV dropout at 150 mA; 65 µV(rms) noise; no BP pin | Lacks dedicated noise-bypass pin - requires larger output caps or external RC filtering for same noise performance | Choose when board area allows SOT-23-5 and BP functionality is not required |
| TPS78012DRVR | 150 mA, 1.2 V fixed, WSON-6; 140 mV dropout; 50 µV(rms) noise; integrated enable and thermal shutdown | Smaller 2.0 mm × 2.0 mm footprint but lacks BP pin - noise reduction relies on internal design only | Prefer when ultra-low noise is critical and layout cannot accommodate external BP capacitor |
Compared with MCP1700T-1202E/TT and TPS78012DRVR, SIP21106DVP-12-E3 uniquely combines TSC75-6L's 0.55 mm profile, BP-pin flexibility for tunable noise suppression, and guaranteed 135 mV dropout - making it optimal for ultra-thin, noise-sensitive battery-powered systems where discrete noise mitigation is preferred over monolithic integration.
Availability
SIP21106DVP-12-E3 is available at Aetrix Electronics and suitable for cellular phones, wireless modems, and digital cameras requiring stable component supply despite end-of-life status - inventory is confirmed and supported via legacy procurement channels.
Supply support for SIP21106DVP-12-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 analog and power semiconductors, with expertise in MOSFETs, diodes, optoelectronics, and precision regulators - headquartered in Malvern, PA, serving global industrial and consumer markets.
The SiP21106 series was engineered specifically for ultra-low-noise, low-quiescent-current regulation in portable RF and imaging systems - emphasizing BP-pin controllability, thin-package thermal performance, and battery-life optimization.
FAQ
What is the maximum input voltage rating for SIP21106DVP-12-E3?
The absolute maximum input voltage for SIP21106DVP-12-E3 is 6.5 V relative to GND. Operation above this level risks permanent damage. For reliable continuous use, the recommended input range is 2.2 V to 6.0 V - ensuring proper regulation across battery discharge curves while maintaining thermal safety margins within the TSC75-6L package's 420 mW power dissipation limit at 70 °C ambient.
Does SIP21106DVP-12-E3 require an external bypass capacitor on the BP pin?
Yes - SIP21106DVP-12-E3 requires a 10 nF ceramic capacitor connected from the BP pin to GND to achieve its specified 60 µV(rms) output noise performance. Without this capacitor, noise increases to ~350 µV(rms). The BP pin is not functional in SiP21107/SiP21108 variants; it is exclusive to the SiP21106 family including SIP21106DVP-12-E3.
How does the auto-discharge function work on SIP21106DVP-12-E3?
When the EN pin is pulled low, SIP21106DVP-12-E3 activates an internal 100 Ω NMOS pull-down between VOUT and GND. This discharges a 1 µF output capacitor in under 1 ms - preventing residual voltage from powering downstream circuits or causing latch-up. The feature is intrinsic to SIP21106DVP-12-E3 and requires no external components.
Is SIP21106DVP-12-E3 compatible with ceramic output capacitors?
Yes - SIP21106DVP-12-E3 is fully stable with 1 µF ceramic output capacitors having ESR < 0.4 Ω. It does not require tantalum or aluminum electrolytic types. X7R or Y7R dielectric ceramics are recommended for stable performance across −40 °C to +85 °C; Z5U/Y5V types may require ≥2.2 µF to ensure phase margin over temperature.
What is the thermal shutdown behavior of SIP21106DVP-12-E3?
SIP21106DVP-12-E3 triggers thermal shutdown at 160 °C junction temperature and resumes regulation after cooling by ~20 °C (hysteresis). During sustained overload, this results in pulsed output - protecting the device but indicating inadequate heatsinking or excessive power dissipation. Maximum continuous operation is rated to 125 °C junction temperature.
SIP21106DVP-12-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):
- 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- 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:
- PowerPAK® TSC75-6
SIP21106DVP-12-E3 FAQ
1.How can I place an order for SIP21106DVP-12-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP21106DVP-12-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 SIP21106DVP-12-E3 reliable?
The price and inventory of SIP21106DVP-12-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SIP21106DVP-12-E3 is usually 5 days.
3.What payment methods are accepted for SIP21106DVP-12-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP21106DVP-12-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP21106DVP-12-E3?
SIP21106DVP-12-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP21106DVP-12-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 SIP21106DVP-12-E3?
For technical support, including SIP21106DVP-12-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP21106DVP-12-E3 requirements.
6.How does Aetrix verify that SIP21106DVP-12-E3 is sourced from the original manufacturer or authorized distributors?
All SIP21106DVP-12-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 SIP21106DVP-12-E3 meets industry standards.
7.What is the process for return or replacement of SIP21106DVP-12-E3?
All SIP21106DVP-12-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SIP21106DVP-12-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 SIP21106DVP-12-E3 part is unused and in its original packaging.
Return procedure for SIP21106DVP-12-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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