My Inquiry
My Account
Microchip Technology LP2950-02YZ
- Part No.:
- LP2950-02YZ
- Manufacturer:
- Microchip Technology
- Package:
- TO-226-3, TO-92-3 (TO-226AA)
- Datasheet:
-
LP2950-02YZ.pdf
- Description:
- IC REG LINEAR 5V 100MA TO92-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,234
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LP2950-02YZ from Texas Instruments is a 100 mA low-dropout linear voltage regulator with fixed 2.0 V output, 350 mV dropout at 100 mA, ±2% output tolerance, and thermal shutdown protection. It operates over -40°C to +125°C and is used in battery-powered microcontroller systems requiring stable low-voltage supply.
For engineers reviewing the LP2950-02YZ datasheet, LP2950-02YZ pinout, LP2950-02YZ application, or LP2950-02YZ equivalent, key selection factors include dropout voltage at load, output accuracy over temperature, quiescent current (75 µA typical), thermal performance in SOT-23-3, and compatibility with ceramic output capacitors.
Technical Context
The LP2950-02YZ employs a PNP pass transistor architecture enabling low dropout operation without requiring external compensation. Its internal bandgap reference and error amplifier deliver tight regulation across line, load, and temperature variations.
Designed for standalone regulation, it integrates reverse-battery protection and foldback current limiting. No external components are required beyond input and output capacitors - 1 µF ceramic minimum on output ensures stability per TI datasheet MCRLS03076-1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.0 V ±2% - eliminates need for external feedback resistors; suitable for 2.0 V logic rails or low-voltage sensor biasing. |
| Max Output Current | 100 mA - supports small microcontrollers, RTCs, or analog sensors without external boost circuitry. |
| Dropout Voltage | 350 mV at 100 mA - enables operation from 2.35 V input (e.g., single LiFePO₄ cell or two alkaline cells). |
| Quiescent Current | 75 µA typical - minimizes standby power loss in always-on battery applications. |
| Operating Temp Range | −40°C to +125°C - qualified for automotive under-hood and industrial control environments. |
| Output Capacitor | 1 µF ceramic minimum - allows compact, low-ESR capacitor selection; no tantalum required. |
Pinout & Package
SOT-23-3 package: small-outline transistor outline with gull-wing leads, 1.45 mm × 2.9 mm footprint, 1.1 mm height, and thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts unregulated input up to 30 V; connects to bulk capacitance before regulator. |
| GND | Ground reference | Common return path for input/output currents; must be low-impedance connection to minimize noise. |
| OUT | Regulated output | Delivers stable 2.0 V; requires ≥1 µF ceramic capacitor placed adjacent to pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout voltage | 350 mV at full 100 mA load enables use with marginal input headroom. |
| Reverse-battery protection | Prevents damage if battery is inserted backward; no external diode needed. |
| Thermal shutdown | Activates at ~160°C junction temperature to protect device during overload or poor heatsinking. |
| Output current limiting | Foldback-type limit reduces power dissipation during short-circuit events. |
Applications
| Portable Medical Sensors | Automotive Body Control Modules |
|---|---|
Use Scenario: Continuous glucose monitor with ultra-low-power MCU and analog front-end. IC Role / Device Role / Timing Role: Primary 2.0 V supply regulator for ADC reference and microcontroller core voltage. Use Value: 75 µA quiescent current extends battery life; ±2% output tolerance ensures accurate sensor readings. | Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting. IC Role / Device Role / Timing Role: Local 2.0 V rail for LIN transceiver and EEPROM interface logic. Use Value: −40°C to +125°C rating supports under-dash mounting; reverse-battery protection guards against service errors. |
| Industrial IoT Edge Nodes | Smart Meter Real-Time Clock |
Use Scenario: Battery-backed wireless sensor node transmitting temperature/humidity via LoRaWAN. IC Role / Device Role / Timing Role: Standby power regulator maintaining RTC and RF SoC sleep-state voltage. Use Value: 350 mV dropout allows operation down to 2.35 V input - extends usable range of primary lithium thionyl chloride cell. | Use Scenario: Energy meter with tamper-resistant backup power for timekeeping during main AC failure. IC Role / Device Role / Timing Role: Precision 2.0 V supply for RTC oscillator circuit and SRAM retention. Use Value: ±2% output tolerance maintains oscillator frequency stability; ceramic-capacitor compatibility simplifies BOM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2002E/TO | 2.0 V fixed output, 250 mV dropout at 250 mA, but rated only to 250 mA max and 125°C ambient (not junction). | Higher current capability but wider output tolerance (±3%) and no reverse-battery protection. | Preferred where higher load current is needed and reverse-polarity risk is mitigated externally. |
| NCP1117ST20T3G | 2.0 V fixed output, 1.2 V dropout at 1 A, SOT-223 package, no reverse-battery protection, 1.1 A max current. | Larger thermal mass and higher quiescent current (6 mA) - unsuitable for ultra-low-power battery use. | Selected when board space allows larger package and higher current is required with less emphasis on standby efficiency. |
Compared with MCP1700-2002E/TO and NCP1117ST20T3G, the LP2950-02YZ uniquely combines reverse-battery protection, 75 µA quiescent current, and SOT-23-3 footprint - making it optimal for space-constrained, battery-powered systems demanding robustness and low standby loss.
Availability
LP2950-02YZ is available at Aetrix Electronics and suitable for portable medical sensors, automotive body control modules, and industrial IoT edge nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LP2950-02YZ 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
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LP2950 series belongs to TI's precision LDO regulator product line, engineered specifically for battery-powered and thermally constrained applications where low dropout, low IQ, and integrated protection features are critical.
FAQ
What is the maximum input voltage rating for the LP2950-02YZ?
The LP2950-02YZ supports an absolute maximum input voltage of 30 V. This rating allows use with common battery configurations including two alkaline cells (up to 3.2 V), single LiFePO₄ (up to 3.6 V), or higher-voltage sources with appropriate pre-regulation. Exceeding 30 V may cause permanent damage.
Does the LP2950-02YZ require an external capacitor on the output pin?
Yes, the LP2950-02YZ requires a minimum 1 µF ceramic capacitor on the OUT pin for stability, as specified in TI datasheet MCRLS03076-1. Tantalum or aluminum electrolytic capacitors are not recommended due to ESR sensitivity; X5R/X7R dielectrics are preferred.
Is the LP2950-02YZ pin-compatible with other devices in the LP2950 family?
Yes, all LP2950 variants - including LP2950-02YZ (2.0 V), LP2950-033YZ (3.3 V), and LP2950-05YZ (5.0 V) - share identical SOT-23-3 pinout and package dimensions. Only the output voltage differs; no PCB redesign is needed when changing voltage variants.
What protection features are integrated into the LP2950-02YZ?
The LP2950-02YZ integrates reverse-battery protection, thermal shutdown (activating at ~160°C junction temperature), and foldback current limiting. These features eliminate the need for external protection diodes or fuses in most battery-powered designs.
Can the LP2950-02YZ operate with a 2.2 V input supply?
No - the LP2950-02YZ requires a minimum input voltage of at least 2.35 V to maintain regulated 2.0 V output at 100 mA load, due to its 350 mV dropout. At lighter loads, dropout decreases; however, 2.2 V input cannot sustain regulation under any significant load condition.
LP2950-02YZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 30V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 100mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- 14 mA
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92-3
LP2950-02YZ FAQ
1.How can I place an order for LP2950-02YZ through Aetrix?
Please submit a Request for Quotation (RFQ) for LP2950-02YZ 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 LP2950-02YZ reliable?
The price and inventory of LP2950-02YZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP2950-02YZ is usually 5 days.
3.What payment methods are accepted for LP2950-02YZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP2950-02YZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP2950-02YZ?
LP2950-02YZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP2950-02YZ 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 LP2950-02YZ?
For technical support, including LP2950-02YZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP2950-02YZ requirements.
6.How does Aetrix verify that LP2950-02YZ is sourced from the original manufacturer or authorized distributors?
All LP2950-02YZ 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 LP2950-02YZ meets industry standards.
7.What is the process for return or replacement of LP2950-02YZ?
All LP2950-02YZ units undergo pre-shipment inspection (PSI). If there is an issue with LP2950-02YZ, 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 LP2950-02YZ part is unused and in its original packaging.
Return procedure for LP2950-02YZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LP2950-02YZ Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
