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Texas Instruments LM9076BMA-3.3/NOPB
- Part No.:
- LM9076BMA-3.3/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM9076BMA-3.3/NOPB.pdf
- Description:
- IC REG LINEAR 3.3V 150MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:292
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Product details
Overview
LM9076BMA-3.3/NOPB from Texas Instruments is a ±3% accuracy, 150 mA ultra-low quiescent current LDO regulator with integrated delayed reset output and shutdown control, featuring 3.3 V fixed output, 200 mV typical dropout at 150 mA, and operation up to 40 V input - designed for automotive microcontroller power sequencing and battery-connected industrial systems.
For engineers reviewing the LM9076BMA-3.3/NOPB datasheet, LM9076BMA-3.3/NOPB pinout, LM9076BMA-3.3/NOPB application, or LM9076BMA-3.3/NOPB equivalent, key selection criteria include its 25 µA ground current at 100 µA load, −40°C to +125°C junction temperature range, 7.8 ms typical reset delay with 1 nF CDELAY capacitor, and SOIC-8 package compatibility with automotive-grade transient protection (±50 V/±70 V).
Technical Context
The LM9076BMA-3.3/NOPB uses a PNP pass transistor architecture enabling low-dropout operation while maintaining stability with ≥10 µF output capacitance and specified ESR range. Its internal delayed reset circuit monitors VOUT against a 0.89×VOUT threshold and initiates a programmable delay via CDELAY pin charging at 0.42 µA before asserting RESET high.
Shutdown functionality is implemented via a dedicated SHUTDOWN pin that disables regulation when pulled high (VIH ≥1.5 V), reducing ground current to ≤25 µA in off state. Thermal shutdown activates at ~160°C junction temperature, and reverse-battery protection sustains −15 V input without damage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.30 V ±3% over load (1–150 mA) and temperature (−40°C to +125°C) |
| Dropout Voltage | 200 mV typical at 150 mA load - enables regulation down to VIN = VOUT + 0.2 V |
| Ground Current | 25 µA typical at 100 µA load; ≤25 µA in shutdown - critical for always-on battery systems |
| Reset Delay Time | 7.8 ms typical with 1 nF CDELAY capacitor - provides stable power-up timing for MCU initialization |
| Input Voltage Range | 5.35 V to 40 V DC continuous; withstands +70 V/−50 V transients - suitable for 12 V/24 V automotive rails |
| Operating Junction Temp | −40°C to +125°C - qualified for under-hood and industrial control environments |
| Thermal Resistance θJA | 156°C/W (SOIC-8) - requires thermal-aware PCB layout for full 150 mA load at high ambient |
Pinout & Package
LM9076BMA-3.3/NOPB is housed in an 8-pin SOIC (Package D, JEDEC MS-012AA), 3.9 mm × 4.9 mm body, 1.75 mm max height, with standard gull-wing lead form and RoHS-compliant matte tin (Sn) finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Unregulated input supply | Accepts 5.35–40 V; includes ±50 V/±70 V transient protection circuitry |
| GND | Power and signal reference | Common return for regulator, RESET, SHUTDOWN, and CDELAY circuits |
| VOUT | Regulated 3.3 V output | Delivers up to 150 mA; requires ≥10 µF output capacitor with controlled ESR |
| SHUTDOWN | Logic-controlled enable/disable | Pull ≥1.5 V to disable regulator; draws ≤10 µA when active high |
| RESET | Open-collector delayed reset flag | Sinks 250 µA when low; requires external 10–200 kΩ pull-up to VOUT or system rail |
| CDELAY | Reset delay timing node | Charges at 0.42 µA to VOUT; 1 nF sets 7.8 ms delay - low-leakage capacitor required |
| NC | No connect | Pin 7 is internally unused; must remain unconnected per datasheet |
| NC | No connect | Pin 8 is internally unused; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ground current | 25 µA typical at light load - extends battery life in always-on automotive modules |
| Integrated delayed reset | Programmable delay (via CDELAY capacitor) prevents premature MCU wake-up during power ramp |
| Automotive-grade transient tolerance | +70 V / −50 V pulse immunity - meets ISO 7637-2 requirements for 12 V systems |
| Shutdown control with low off-state current | ≤25 µA total system draw in shutdown - enables true zero-power sleep modes |
| Thermal shutdown protection | Activates at ~160°C junction temperature - prevents catastrophic failure during overload or poor heatsinking |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC I/O Power Supply |
|---|---|
Use Scenario: Powering microcontrollers and CAN transceivers in door modules, seat controllers, and lighting nodes with direct battery connection. IC Role / Device Role / Timing Role: Primary 3.3 V LDO supplying MCU core logic and providing synchronized reset assertion after cold-crank recovery. Use Value: 7.8 ms reset delay ensures stable 3.3 V rail before MCU firmware execution; ±50 V reverse-battery tolerance eliminates need for external protection diodes. | Use Scenario: Providing regulated 3.3 V to isolated digital I/O ASICs and sensor interface circuitry in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Always-on LDO with shutdown control enabling remote power cycling of fieldbus interfaces without main system reboot. Use Value: 25 µA quiescent current minimizes standby loss; 40 V max VIN supports wide-input industrial SMPS front-ends. |
| Telematics Control Unit (TCU) Power Sequencing | Smart Sensor Node with Wake-on-Event |
Use Scenario: Sequencing power to GPS, cellular modem, and application processor in vehicle telematics units requiring precise reset coordination. IC Role / Device Role / Timing Role: Regulator and reset generator ensuring GPS module initializes only after stable 3.3 V and clock signals are established. Use Value: RESET pin tied to processor's NMI input; delay time set by CDELAY allows analog references and oscillators to settle before firmware starts. | Use Scenario: Battery-powered environmental sensor node that sleeps for extended periods and wakes on motion or temperature threshold. IC Role / Device Role / Timing Role: Low-IQ LDO maintaining real-time clock and interrupt controller in deep-sleep mode, then enabling full system via SHUTDOWN pin. Use Value: ≤25 µA shutdown current enables multi-year battery life; SHUTDOWN pin logic simplifies wake-control without external MOSFET drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator with reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM9076BMA-5.0/NOPB | Fixed 5.0 V output; identical SOIC-8 package, pinout, and feature set including RESET and SHUTDOWN | Used where downstream logic requires 5 V supply instead of 3.3 V - no PCB change needed if voltage rail is re-routed | Select when system-level voltage architecture mandates 5 V; same thermal and transient performance applies |
| TPS7B6733QPWPRQ1 | 3.3 V automotive LDO with 35 µA IQ, integrated watchdog timer, and AEC-Q100 Grade 1 qualification; 5-pin SOT-23 package | Lacks RESET delay programming and SHUTDOWN pin; smaller footprint but lower current (150 mA same), no CDELAY flexibility | Choose for space-constrained designs where programmable reset delay is unnecessary and watchdog supervision adds value |
Compared with LM9076BMA-5.0/NOPB, the LM9076BMA-3.3/NOPB delivers identical timing, protection, and package compatibility at a different output voltage - whereas TPS7B6733QPWPRQ1 trades CDELAY programmability and dual-control pins for smaller size and built-in watchdog, requiring layout revision and functional reassessment.
Availability
LM9076BMA-3.3/NOPB is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC power supplies, and telematics control units requiring stable component supply across extended temperature and high-reliability operating conditions.
Supply support for LM9076BMA-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 LM9076 product line delivers ultra-low-IQ LDOs with integrated reset and shutdown for battery-connected systems - engineered specifically for automotive infotainment, body electronics, and industrial control applications demanding robustness and long-term reliability.
FAQ
What is the maximum input voltage rating for LM9076BMA-3.3/NOPB?
The LM9076BMA-3.3/NOPB supports continuous input voltages from 5.35 V to 40 V DC. It also withstands transient overvoltages up to +70 V (t < 10 ms, duty cycle <1%) and reverse transients down to −50 V (t < 1 ms, duty cycle <1%), making it suitable for harsh automotive environments. These ratings are absolute maximum limits - sustained operation above 40 V may cause permanent damage.
How does the RESET pin function on LM9076BMA-3.3/NOPB?
The RESET pin on LM9076BMA-3.3/NOPB is an open-collector output requiring an external pull-up resistor (10–200 kΩ to VOUT or another rail). It asserts low when VOUT drops below ~0.89×3.3 V (≈2.94 V) or when VIN falls below ~2 V, and remains low for a programmable delay (e.g., 7.8 ms with 1 nF CDELAY) before returning high. This behavior ensures reliable microcontroller reset during brownout or startup.
Can LM9076BMA-3.3/NOPB be used without the CDELAY capacitor?
No - the CDELAY capacitor is mandatory for proper RESET pin operation. Without it, the delayed reset function is disabled and the RESET pin may remain indeterminate or fail to assert correctly after fault recovery. The datasheet specifies a 1 nF ceramic capacitor as typical for 7.8 ms delay; omitting CDELAY violates the device's intended reset timing behavior and risks unreliable system boot sequences.
What is the thermal performance of LM9076BMA-3.3/NOPB in SOIC-8 package?
The LM9076BMA-3.3/NOPB in SOIC-8 (Package D) has a junction-to-ambient thermal resistance (θJA) of 156°C/W. At full 150 mA load with 40 V input, power dissipation reaches ~5.5 W, raising junction temperature by ~860°C above ambient - exceeding safe limits. Therefore, derating is essential: at 25°C ambient, maximum continuous load is ~100 mA with minimal copper; PCB layout with thermal vias and 2+ in² 2-oz copper pour is required for full-rated operation.
Does LM9076BMA-3.3/NOPB support reverse-battery protection?
Yes - LM9076BMA-3.3/NOPB includes integrated reverse-battery protection and is rated to withstand −15 V DC applied to VIN with no damage. During reverse polarity, output voltage remains near 0 V and ground current stays below 300 mV drop, preventing latch-up or destruction. This eliminates the need for external series diodes in automotive battery-connected applications, reducing BOM count and forward voltage loss.
LM9076BMA-3.3/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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):
- 0.25V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 45 µA
- Current - Supply (Max):
- 4.5 mA
- PSRR:
- 60dB (120kHz)
- Control Features:
- Enable, Reset
- Protection Features:
- Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LM9076BMA-3.3/NOPB FAQ
1.How can I place an order for LM9076BMA-3.3/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM9076BMA-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 LM9076BMA-3.3/NOPB reliable?
The price and inventory of LM9076BMA-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 LM9076BMA-3.3/NOPB is usually 5 days.
3.What payment methods are accepted for LM9076BMA-3.3/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM9076BMA-3.3/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM9076BMA-3.3/NOPB?
LM9076BMA-3.3/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM9076BMA-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 LM9076BMA-3.3/NOPB?
For technical support, including LM9076BMA-3.3/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM9076BMA-3.3/NOPB requirements.
6.How does Aetrix verify that LM9076BMA-3.3/NOPB is sourced from the original manufacturer or authorized distributors?
All LM9076BMA-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 LM9076BMA-3.3/NOPB meets industry standards.
7.What is the process for return or replacement of LM9076BMA-3.3/NOPB?
All LM9076BMA-3.3/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM9076BMA-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 LM9076BMA-3.3/NOPB part is unused and in its original packaging.
Return procedure for LM9076BMA-3.3/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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