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Texas Instruments LM2936MMX-3.3/NOPB
- Part No.:
- LM2936MMX-3.3/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LM2936MMX-3.3/NOPB.pdf
- Description:
- IC REG LINEAR 3.3V 50MA 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,165
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Product details
Overview
LM2936MMX-3.3/NOPB from Texas Instruments is a fixed 3.3-V, 50-mA ultra-low quiescent current LDO voltage regulator in VSSOP-8 package, featuring ≤15 μA IQ at 100 μA load, 200 mV dropout at 50 mA, and ±2% initial output tolerance. It operates from 5.5 V to 40 V input and delivers stable power to automotive body electronics, industrial sensors, and always-on microcontroller subsystems.
For engineers reviewing the LM2936MMX-3.3/NOPB datasheet, LM2936MMX-3.3/NOPB pinout, LM2936MMX-3.3/NOPB application, or LM2936MMX-3.3/NOPB equivalent, key selection criteria include input voltage survival (−50 V transient), reverse polarity protection (−24 V), thermal shutdown (160°C typical), and output capacitor ESR requirements (300 mΩ–8 Ω) for stability across −40°C to 125°C.
Technical Context
The LM2936MMX-3.3/NOPB uses a PNP pass transistor architecture enabling low dropout and high input voltage tolerance up to 40 V. Its internal bandgap reference and error amplifier maintain regulation with ±3% total output tolerance over line, load, and temperature.
It integrates reverse-battery protection, short-circuit current limiting (65–250 mA), and thermal shutdown without requiring external components. The VSSOP-8 package provides compact surface-mount fit with exposed thermal pad (pin 4 GND) for enhanced thermal performance in space-constrained designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V with ±2% initial tolerance and ±3% over full operating range - ensures predictable MCU I/O rail compliance. |
| Quiescent Current | ≤15 μA at 100 μA load - enables multi-year battery life in vehicle entry modules and remote sensors. |
| Dropout Voltage | 200 mV typical at 50 mA - supports operation down to VIN = 3.5 V while maintaining regulation. |
| Input Voltage Range | 5.5 V to 40 V continuous, −50 V transient survival - withstands automotive load-dump and cold-crank conditions. |
| Output Current | 50 mA maximum - sufficient for powering low-power MCUs, CAN transceivers, and analog front-ends. |
| Thermal Shutdown | Activates at ~160°C junction temperature - protects against sustained overload or poor PCB heatsinking. |
| Reverse Polarity Protection | Withstands −24 V applied to IN - eliminates need for external blocking diode in battery-reversed installations. |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.65 mm pitch, exposed thermal pad connected to pin 4 (GND). Pin 1 = OUT, pin 2 = GND, pin 3 = GND, pin 4 = GND (thermal tab), pin 5 = NC, pin 6 = GND, pin 7 = GND, pin 8 = IN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Regulated output | Delivers stable 3.3 V; requires ≥22 µF output capacitor with 300 mΩ–8 Ω ESR for loop stability. |
| 2, 3, 6, 7 (GND) | Ground reference | Multiple GND pins reduce impedance; pin 4 is thermal pad tied to GND - must be soldered to PCB copper for thermal relief. |
| 4 (GND/TAB) | Thermal ground plane | Exposed pad serves as primary heat path; requires minimum 4×4 mm² copper pour with ≥4 thermal vias to inner ground layer. |
| 5 (NC) | No internal connection | Not bonded; may be left floating or tied to GND for mechanical reinforcement - no electrical function. |
| 8 (IN) | Unregulated input | Accepts 5.5–40 V; requires local 100 nF ceramic decoupling if >7.6 cm from bulk filter capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | ≤15 μA at 100 μA load - extends battery runtime in always-on telematics and alarm systems. |
| High-voltage input tolerance | Survives −50 V transients and operates up to +40 V - meets ISO 7637-2 pulse 5a/b requirements for automotive. |
| Integrated reverse-polarity protection | Withstands −24 V on IN pin - removes need for external series diode, reducing BOM count and forward-drop loss. |
| Thermal and short-circuit protection | Auto-recovering shutdown at ~160°C and current limit of 65–250 mA - prevents catastrophic failure during fault conditions. |
| Stable with ceramic output capacitors | Supports 22 µF X5R/X7R MLCCs when paired with 500 mΩ–1 Ω series resistor - enables small, low-ESR, high-reliability output filtering. |
Applications
| Automotive Body Control Module | Industrial Sensor Node |
|---|---|
Use Scenario: Powering LIN transceivers and door-lock MCU in 12-V vehicle architecture with frequent engine-off periods. IC Role / Device Role / Timing Role: Primary 3.3-V LDO supplying logic rails for microcontroller, EEPROM, and wake-up circuitry. Use Value: ≤15 μA quiescent current prevents excessive battery drain during weeks-long parking; −50 V transient rating survives jump-start events. |
Use Scenario: Remote temperature/humidity sensor node powered by AA batteries in HVAC duct monitoring. IC Role / Device Role / Timing Role: Always-on voltage regulator enabling periodic wake-up and BLE transmission bursts. Use Value: 200 mV dropout allows operation down to 3.5 V input, extending usable battery range; ±2% initial tolerance ensures ADC reference accuracy. |
| Point-of-Load for CAN Transceiver | Low-Power IoT Edge Controller |
Use Scenario: Local 3.3-V supply for isolated CAN FD transceiver in distributed control cabinet. IC Role / Device Role / Timing Role: Secondary regulator downstream of main 5-V rail, providing noise-isolated power to CAN PHY. Use Value: 50-mA output supports transceiver peak current; reverse-polarity protection avoids damage during field wiring errors. |
Use Scenario: Power management for RISC-V-based edge controller in smart lighting system with motion-triggered wake-up. IC Role / Device Role / Timing Role: Standby-mode regulator maintaining RTC and interrupt controller while main SoC sleeps. Use Value: Thermal shutdown and short-circuit protection ensure reliability in unattended deployments; VSSOP-8 footprint saves board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS76333DBVR | 300 μA typical IQ, 100 mA output, SOT-23-5 package - higher quiescent current but higher output capability. | Lacks −50 V transient rating and reverse-polarity protection - requires external protection circuitry in automotive use. | Select when higher output current is needed and input transients are controlled; not suitable for direct replacement in harsh environments. |
| MCP1702T-3302E/MB | 2.5 μA typical IQ, 250 mA output, SOT-23-3 package - lower IQ but no reverse-polarity or high-voltage transient protection. | Rated only to 16 V max input - unsuitable for 12-V automotive systems with load dump. | Prefer for ultra-low-power battery applications below 16 V; requires external TVS and reverse-blocking diode for automotive deployment. |
Compared with TPS76333DBVR and MCP1702T-3302E/MB, the LM2936MMX-3.3/NOPB uniquely combines ultra-low IQ, automotive-grade input ruggedness (−50 V/40 V), and integrated reverse-polarity protection in a thermally enhanced VSSOP-8 package - making it the only drop-in solution for space-constrained, battery-sensitive automotive and industrial control nodes.
Availability
LM2936MMX-3.3/NOPB is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, point-of-load CAN transceiver supplies, and low-power IoT edge controllers requiring stable component supply across extended product lifecycles.
Supply support for LM2936MMX-3.3/NOPB 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 delivering analog and embedded processing solutions, with leadership in power management ICs and automotive-grade components.
The LM2936 product line was designed specifically for ultra-low-power, high-reliability applications in automotive and industrial environments where battery longevity, input voltage transients, and reverse-battery conditions are critical design constraints.
FAQ
What is the maximum input voltage the LM2936MMX-3.3/NOPB can withstand continuously?
The LM2936MMX-3.3/NOPB supports continuous operation up to 40 V input voltage. It also survives −50 V input transients for 1 ms per ISO 7637-2 Pulse 5a, making it suitable for 12-V automotive systems. Operation above 40 V risks exceeding safe operating area limits in the PNP pass device, especially under short-circuit conditions.
Does the LM2936MMX-3.3/NOPB require an external shutdown pin?
No - the LM2936MMX-3.3/NOPB does not include a shutdown (SD) pin. That feature is exclusive to the LM2936BM variant in SOIC-8 package. The LM2936MMX-3.3/NOPB remains enabled whenever valid input voltage is applied and has no logic-controlled disable function.
What output capacitor is required for stable operation of the LM2936MMX-3.3/NOPB?
The LM2936MMX-3.3/NOPB requires a minimum 22 µF output capacitor with ESR between 300 mΩ and 8 Ω across the full operating temperature range. Ceramic capacitors (X5R/X7R) may be used only with a 500 mΩ–1 Ω series resistor to meet ESR requirements; tantalum or aluminum polymer capacitors are viable alternatives.
How does the LM2936MMX-3.3/NOPB handle reverse battery connection?
The LM2936MMX-3.3/NOPB includes internal reverse-polarity protection and withstands −24 V applied to the IN pin without damage or latch-up. This eliminates the need for an external series diode in battery-powered systems, preserving efficiency and simplifying layout - a key differentiator versus standard LDOs.
Is the LM2936MMX-3.3/NOPB pin-compatible with other LM2936 variants?
No - the LM2936MMX-3.3/NOPB in VSSOP-8 (DGK) package has a unique pinout: pins 1 (OUT), 2/3/6/7 (GND), 4 (GND/TAB), 5 (NC), and 8 (IN). It is not pin-compatible with SOIC-8 (LM2936M/BM), TO-252, or SOT-223 variants. Layout and thermal pad routing must follow DGK-specific guidelines.
LM2936MMX-3.3/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.4V @ 50mA
- Current - Output:
- 50mA
- Current - Quiescent (Iq):
- 15 µA
- Current - Supply (Max):
- 2.5 mA
- PSRR:
- 60dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LM2936MMX-3.3/NOPB FAQ
1.How can I place an order for LM2936MMX-3.3/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2936MMX-3.3/NOPB 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 LM2936MMX-3.3/NOPB reliable?
The price and inventory of LM2936MMX-3.3/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2936MMX-3.3/NOPB is usually 5 days.
3.What payment methods are accepted for LM2936MMX-3.3/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2936MMX-3.3/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2936MMX-3.3/NOPB?
LM2936MMX-3.3/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2936MMX-3.3/NOPB 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 LM2936MMX-3.3/NOPB?
For technical support, including LM2936MMX-3.3/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2936MMX-3.3/NOPB requirements.
6.How does Aetrix verify that LM2936MMX-3.3/NOPB is sourced from the original manufacturer or authorized distributors?
All LM2936MMX-3.3/NOPB 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 LM2936MMX-3.3/NOPB meets industry standards.
7.What is the process for return or replacement of LM2936MMX-3.3/NOPB?
All LM2936MMX-3.3/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM2936MMX-3.3/NOPB, 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 LM2936MMX-3.3/NOPB part is unused and in its original packaging.
Return procedure for LM2936MMX-3.3/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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