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Texas Instruments LM2936QMMX-3.3/NOPB
- Part No.:
- LM2936QMMX-3.3/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LM2936QMMX-3.3/NOPB.pdf
- Description:
- IC REG LINEAR 3.3V 50MA 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,660
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Product details
Overview
LM2936QMMX-3.3/NOPB from Texas Instruments is an AEC-Q100 Grade 1 qualified ultralow-quiescent-current LDO voltage regulator delivering a fixed 3.3 V output at up to 50 mA, with ≤15 μA quiescent current at 100 μA load, 200 mV typical dropout at full load, and ±3% output tolerance over −40°C to +125°C ambient. It is designed for automotive battery-supplied systems requiring persistent low-power operation.
For engineers reviewing the LM2936QMMX-3.3/NOPB datasheet, LM2936QMMX-3.3/NOPB pinout, LM2936QMMX-3.3/NOPB application, or LM2936QMMX-3.3/NOPB equivalent, key selection criteria include input voltage range (5.5 V–40 V), reverse-battery protection, −50 V transient survival, thermal shutdown behavior, and output capacitor ESR requirements (0.3 Ω–8 Ω) for stability.
Technical Context
The LM2936QMMX-3.3/NOPB uses a PNP pass transistor architecture enabling low dropout and inherent reverse-polarity protection. Its internal bandgap reference and error amplifier maintain regulation across line, load, and temperature without external components.
It operates in linear mode when VIN ≥ VOUT + 1 V, with optimal dynamic performance above VIN ≥ VOUT + 2 V. No undervoltage lockout or overvoltage shutdown is implemented - output tracks input below regulation threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2% initial, ±3% over line/load/temperature - ensures stable MCU I/O rail under automotive transients. |
| Quiescent Current | ≤15 μA at 100 μA load - enables >1-year battery hold-up in always-on vehicle modules. |
| Input Voltage Range | 5.5 V to 40 V continuous - supports 12 V and 24 V automotive systems including cold-crank and load-dump conditions. |
| Dropout Voltage | 200 mV typical at 50 mA - allows regulation down to ~3.5 V input in 3.3 V systems during cranking. |
| Transient Protection | −50 V reverse-battery survival, 60 V max line transient - eliminates need for external TVS in basic front-end designs. |
| Thermal Shutdown | Activates at ~160°C junction, auto-recovers after ~10°C cooldown - protects against sustained overload without latch-off. |
| Output Capacitor ESR | 0.3 Ω to 8 Ω required - mandates careful capacitor selection (e.g., tantalum or aluminum polymer); ceramic requires series resistor. |
Pinout & Package
LM2936QMMX-3.3/NOPB is housed in an 8-pin SOIC (D package) with 4.90 mm × 3.91 mm body size. Four pins (2, 3, 6, 7) are internally connected to GND and thermally tied to the die backside for improved heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Regulated output | Delivers stable 3.3 V; requires ≥22 µF output capacitor with 0.3–8 Ω ESR placed adjacent to pins 1 and 2/3/6/7. |
| 2, 3, 6, 7 (GND) | Ground return & thermal path | All four pins connect to internal ground plane and substrate; PCB copper pour under package improves RθJA by ~10°C/W. |
| 8 (IN) | Unregulated input | Accepts 5.5–40 V; reverse-battery protected; transient-rated to −50 V; requires local 100 nF bypass if >3 inches from bulk filter. |
| 4, 5 (NC) | No internal connection | Not bonded; may be left floating or tied to GND for mechanical stability - no electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation - meets automotive electronics reliability and stress-test requirements. |
| Ultralow quiescent current | ≤15 μA at 100 μA load - enables extended sleep-mode battery life in telematics, body control, and sensor nodes. |
| Reverse-battery protection | Withstands −15 V applied continuously and −50 V transients - eliminates need for external series diode or MOSFET. |
| Integrated short-circuit & thermal protection | Current-limited to 65–250 mA and shuts down at ~160°C - prevents catastrophic failure during wiring faults or overheating. |
| Stable with wide-range output capacitors | Supports 22 µF minimum COUT with 0.3–8 Ω ESR - accommodates cost-effective tantalum, polymer, or resistor-biased ceramic solutions. |
Applications
| Infotainment Power Rail | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Powering microcontroller, CAN transceiver, and display interface in automotive infotainment head unit with always-on wake-up capability. IC Role / Device Role / Timing Role: Primary 3.3 V LDO supplying logic rails; maintains regulation during engine start (input dip to ~6 V) and load dump (transient spikes). Use Value: 200 mV dropout and −50 V transient rating eliminate need for pre-regulator or external clamping, reducing BOM count and layout area. |
Use Scenario: Supplying door module MCU, window motor driver logic, and LIN transceiver in 12 V vehicle architecture. IC Role / Device Role / Timing Role: Standby power source with <15 μA IQ; enables low-power sleep mode while retaining real-time clock and wake-on-LIN functionality. Use Value: Ultralow quiescent current extends battery life beyond ISO 16750-2 parasitic drain limits (<100 μA total), avoiding unintended discharge. |
| Telematics Control Unit (TCU) | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
|
Use Scenario: Providing clean 3.3 V supply to GPS/GNSS receiver, cellular modem, and secure element in always-connected TCU. IC Role / Device Role / Timing Role: Secondary regulated rail isolated from noisy main 5 V domain; rejects ripple from switching DC/DC converters. Use Value: −60 dB ripple rejection at 120 Hz suppresses switching noise from upstream converters, preserving GNSS signal integrity. |
Use Scenario: Powering image sensor interface, radar preprocessing MCU, and CAN FD transceiver in ADAS domain controller. IC Role / Device Role / Timing Role: Local point-of-load regulator for noise-sensitive analog front-end circuitry; thermally robust under under-hood ambient conditions. Use Value: 125°C ambient rating and thermal shutdown enable reliable operation near engine bay without forced air or heatsinks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7B6733QPWPRQ1 | Higher IQ (25 μA typ), lower dropout (170 mV @ 50 mA), integrated enable but no reverse-battery protection. | Lacks −50 V transient rating; requires external reverse-polarity diode in battery-reversal-prone locations. | Preferred where tighter dropout or enable control is critical and reverse-battery risk is mitigated externally. |
| NCP163AMX330TBG | Lower IQ (1.5 μA), smaller 5-pin SOT-23 package, but only rated to 20 V input and lacks AEC-Q100 qualification. | Not automotive-qualified; unsuitable for direct replacement in safety-critical or high-voltage vehicle subsystems. | Consider only for non-automotive industrial or consumer applications with <20 V input and ultra-low-IQ priority. |
Compared with LM2936QMMX-3.3/NOPB, TPS7B6733QPWPRQ1 trades reverse-battery robustness for marginally better dropout and controllability, while NCP163AMX330TBG sacrifices automotive compliance and voltage range for extreme quiescent current reduction and footprint savings.
Availability
LM2936QMMX-3.3/NOPB is available at Aetrix Electronics and suitable for automotive infotainment, body control modules, and telematics applications requiring stable component supply across long production lifecycles and stringent environmental qualification.
Supply support for LM2936QMMX-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 specializing in analog, embedded processing, and power management ICs, with deep expertise in automotive-grade reliability and functional safety.
The LM2936Q series was developed specifically for automotive battery-powered systems needing persistent low-power regulation, combining AEC-Q100 qualification, reverse-battery resilience, and thermal robustness in compact surface-mount packages.
FAQ
What is the maximum input voltage the LM2936QMMX-3.3/NOPB can withstand?
The LM2936QMMX-3.3/NOPB has a continuous operating input voltage range of 5.5 V to 40 V. It survives −50 V reverse-battery transients and up to +60 V input spikes for 1 ms, but must not be operated continuously above 40 V due to safe operating area limitations in the internal PNP pass device.
Does the LM2936QMMX-3.3/NOPB include a shutdown pin?
No, the LM2936QMMX-3.3/NOPB does not include a shutdown (SD) pin. That feature is exclusive to the LM2936QHBMA variant (5 V version with 8-pin SOIC). The LM2936QMMX-3.3/NOPB operates continuously when powered within its input voltage range and has no enable or disable control.
What output capacitor is required for stable operation of the LM2936QMMX-3.3/NOPB?
The LM2936QMMX-3.3/NOPB requires a minimum 22 µF output capacitor with an ESR between 0.3 Ω and 8 Ω, rated for the full −40°C to +125°C operating temperature range. Ceramic capacitors may be used only if a series resistor (typically 500 mΩ–1 Ω) is added to meet the mandatory ESR requirement.
Is the LM2936QMMX-3.3/NOPB qualified for automotive use?
Yes, the LM2936QMMX-3.3/NOPB is AEC-Q100 qualified for Grade 1 (−40°C to +125°C ambient), making it suitable for under-hood and cabin automotive applications including body control, infotainment, and telematics systems where reliability under harsh thermal and electrical conditions is mandatory.
How does the LM2936QMMX-3.3/NOPB handle reverse battery connection?
The LM2936QMMX-3.3/NOPB features built-in reverse-battery protection: it withstands −15 V applied continuously and −50 V transients for 1 ms without damage or reverse current flow. Output remains at ≤−0.3 V under −15 V reverse input, preventing downstream circuit damage without external components.
LM2936QMMX-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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LM2936QMMX-3.3/NOPB FAQ
1.How can I place an order for LM2936QMMX-3.3/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2936QMMX-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 LM2936QMMX-3.3/NOPB reliable?
The price and inventory of LM2936QMMX-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 LM2936QMMX-3.3/NOPB is usually 5 days.
3.What payment methods are accepted for LM2936QMMX-3.3/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2936QMMX-3.3/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2936QMMX-3.3/NOPB?
LM2936QMMX-3.3/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2936QMMX-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 LM2936QMMX-3.3/NOPB?
For technical support, including LM2936QMMX-3.3/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2936QMMX-3.3/NOPB requirements.
6.How does Aetrix verify that LM2936QMMX-3.3/NOPB is sourced from the original manufacturer or authorized distributors?
All LM2936QMMX-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 LM2936QMMX-3.3/NOPB meets industry standards.
7.What is the process for return or replacement of LM2936QMMX-3.3/NOPB?
All LM2936QMMX-3.3/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM2936QMMX-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 LM2936QMMX-3.3/NOPB part is unused and in its original packaging.
Return procedure for LM2936QMMX-3.3/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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