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STMicroelectronics LM723CD013TR
- Part No.:
- LM723CD013TR
- Manufacturer:
- STMicroelectronics
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM723CD013TR.pdf
- Description:
- IC REG LINEAR POS ADJ 150MA 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,857
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Product details
Overview
LM723CD013TR from STMicroelectronics is a monolithic programmable voltage regulator IC supporting positive or negative supply operation, adjustable output voltage from 2 V to 37 V, input voltage up to 40 V, and internal current limiting with 150 mA output capability without external pass transistors. It enables series, shunt, switching, and floating regulator topologies in industrial power supplies and precision analog systems.
For engineers reviewing the LM723CD013TR datasheet, LM723CD013TR pinout, LM723CD013TR application, or LM723CD013TR equivalent, key selection criteria include its ±150 ppm/°C output drift, 7.15 V reference voltage, 0.1 %/1000 hrs long-term stability, and support for foldback current limiting and remote shutdown in discrete-regulator designs.
Technical Context
The LM723CD013TR integrates a precision 7.15 V bandgap reference, error amplifier, current-sense comparator, and driver stage - enabling fully configurable linear regulation via external resistor networks. Its architecture supports both NPN and PNP external pass transistors for output currents beyond 150 mA.
It operates across an industrial temperature range (0 °C to 70 °C), delivers 0.03–0.2 % load regulation (1–50 mA), and achieves 74–86 dB supply voltage rejection depending on CREF configuration. The device supports four distinct regulator modes: series, shunt, switching, and floating - each requiring specific external component arrangements per application schematics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reference Voltage | 7.15 V typical; sets base accuracy for all output voltage configurations via R1/R2 divider |
| Output Voltage Range | 2 V to 37 V adjustable; supports both positive and negative outputs using standard feedback networks |
| Input Voltage Range | 9.5 V to 40 V DC; enables wide-input industrial and telecom power rails |
| Output Current (int.) | 150 mA max without external transistor; sufficient for low-power analog subsystems |
| Line Regulation | 0.01–0.5 % over VI = 12–40 V; determines sensitivity to input rail variation |
| Load Regulation | 0.03–0.2 % over IO = 1–50 mA; defines output stability under changing load conditions |
| Output Drift | 150 ppm/°C; quantifies thermal-induced output voltage shift in precision applications |
Pinout & Package
LM723CD013TR is housed in a SO-14 (Small Outline, 14-pin) plastic package with 1.27 mm pitch, 8.55–8.75 mm body width, and tape-and-reel packaging for automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (COMP) | Error Amplifier Compensation | Connects external RC network to stabilize loop response and prevent oscillation |
| 2 (INV) | Inverting Input | Feedback node for output voltage sensing; referenced to VREF for regulation control |
| 3 (NC) | No Connect | Internally unused; must remain unconnected per datasheet |
| 4 (V−) | Negative Supply Rail | Provides bias for internal circuitry in dual-supply or negative-output configurations |
| 5 (CURRENT LIMIT) | Current Sense Input | Monitors voltage drop across external RSC to initiate foldback or constant-current limiting |
| 6 (V+) | Positive Supply Rail | Primary power input for internal circuitry; supports up to 40 V DC |
| 7 (GND) | Ground Reference | Common return path for reference, error amp, and driver stages |
| 8 (OUTPUT) | Driver Output | Drives base/gate of external NPN/PNP pass transistor or directly sources ≤150 mA |
| 9 (SHUTDOWN) | Remote Control Input | Active-low logic input enabling fast regulator disable with <1 µA quiescent draw |
| 10 (VREF) | Precision Reference Output | Stable 7.15 V source for feedback dividers and external circuit biasing |
| 11 (NC) | No Connect | Internally unused; must remain unconnected |
| 12 (NC) | No Connect | Internally unused; must remain unconnected |
| 13 (NC) | No Connect | Internally unused; must remain unconnected |
| 14 (NC) | No Connect | Internally unused; must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable Output Voltage | Configurable from 2 V to 37 V using two external resistors - no fixed-voltage variants required |
| Foldback Current Limiting | Reduces short-circuit current at low output voltages to minimize pass transistor power dissipation |
| Remote Shutdown Capability | Enables system-level power sequencing and fault recovery with TTL/CMOS-compatible control signal |
| Wide Input Voltage Range | Operates from 9.5 V to 40 V - suitable for unregulated rectified AC or battery-backed industrial rails |
| Low Long-Term Drift | 0.1 % change per 1000 hours - critical for calibration-stable instrumentation and test equipment |
Applications
| Industrial Power Supply | Test & Measurement Equipment |
|---|---|
Use Scenario: Regulated ±15 V rails for op-amp and ADC front-ends in PLC I/O modules. IC Role / Device Role / Timing Role: Programmable linear regulator implementing series topology with external PNP pass transistor. Use Value: Achieves 0.5 mV load regulation at 1 A output and 150 ppm/°C drift - preserving measurement accuracy across ambient temperature swings. | Use Scenario: Precision 5 V reference and auxiliary 3.3 V supply in portable multimeters and calibrators. IC Role / Device Role / Timing Role: Dual-output shunt regulator with independent current limiting per rail. Use Value: Delivers 0.03 % load regulation and 2.5 µV RMS noise (with 5 µF CREF) - meeting metrology-grade stability requirements. |
| Telecom Line Card | Automotive Body Control Module |
Use Scenario: Floating 48 V bias supply for line interface circuits in DSLAM cards. IC Role / Device Role / Timing Role: Positive floating regulator using external NPN pass element and isolated feedback. Use Value: Supports 100 V output capability (via external components) with 15 mV line regulation over 20 V input swing - ensuring robustness against ringing transients. | Use Scenario: 12 V-to-5 V conversion for microcontroller and sensor subsystems in 12 V vehicle architectures. IC Role / Device Role / Timing Role: Series regulator with foldback current limiting and remote shutdown for ECU power management. Use Value: Limits peak fault current to 65 mA while maintaining 0.1 %/1000 hrs stability - reducing thermal stress during load dump events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM317LZ | Fixed 3-terminal architecture; no separate reference, error amp, or shutdown pins; 1.25–37 V output; 100 mA max | Limited to basic series regulator use; no foldback limiting, remote shutdown, or negative output capability | Select when simplicity and BOM count outweigh configurability needs |
| TL783CP | Higher input voltage rating (125 V); 1.25–125 V output; 700 mA output; no internal reference or current sense comparator | Requires external reference and protection circuitry; lacks integrated current limiting and shutdown logic | Select for ultra-high-voltage floating regulators where LM723's 40 V limit is insufficient |
Compared with LM317LZ and TL783CP, the LM723CD013TR provides full architectural flexibility - including independent reference access, programmable current limiting, and multi-topology support - at the cost of higher external component count and design effort.
Availability
LM723CD013TR is available at Aetrix Electronics and suitable for industrial power supplies, test equipment, telecom line cards, and automotive body control modules requiring stable component supply and long-lifecycle availability.
Supply support for LM723CD013TR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power management solutions with vertical manufacturing capabilities.
The LM723 product line was designed for high-precision, field-configurable linear regulation in mission-critical analog power systems - emphasizing stability, thermal performance, and topology versatility over integration density.
FAQ
What is the maximum allowable input voltage for LM723CD013TR?
The absolute maximum DC input voltage is 40 V, as specified in the Absolute Maximum Ratings table. Operation above this level risks permanent damage to the internal reference and error amplifier stages. For reliable long-term use, STMicroelectronics recommends limiting VI to ≤37 V under worst-case thermal conditions to maintain junction temperature below 125 °C.
Can LM723CD013TR regulate negative output voltages?
Yes - the LM723CD013TR supports negative output configurations by connecting V− to the most negative rail and using the INV pin for feedback from the regulated negative output. Figure 15 in the datasheet shows a verified −15 V design achieving 1 mV line regulation and 2 mV load regulation across 100 mA.
How does foldback current limiting work on this device?
Foldback limiting uses the CURRENT LIMIT pin to monitor voltage across an external sense resistor (RSC). When VO drops near zero, the internal comparator reduces output drive to lower the knee current (e.g., 20 mA in Fig. 18), decreasing power dissipation in the pass transistor during sustained shorts - unlike constant-current limiting which maintains full current at low VO.
Is LM723CD013TR RoHS compliant and halogen-free?
Yes - LM723CD013TR is manufactured in STMicroelectronics' RoHS-compliant SO-14 package (PO13G) and meets JEDEC JS-709E halogen-free requirements. The device carries the "ECOPACK2" designation, confirming compliance with EU Directive 2011/65/EU and absence of brominated flame retardants.
LM723CD013TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 2V
- Voltage - Output (Max):
- 37V
- Voltage Dropout (Max):
- -
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 4 mA
- Current - Supply (Max):
- -
- PSRR:
- 86db ~ 74dB (100Hz ~ 10kHz)
- Control Features:
- -
- Protection Features:
- Over Current
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
LM723CD013TR FAQ
1.How can I place an order for LM723CD013TR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM723CD013TR 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 LM723CD013TR reliable?
The price and inventory of LM723CD013TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM723CD013TR is usually 5 days.
3.What payment methods are accepted for LM723CD013TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM723CD013TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM723CD013TR?
LM723CD013TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM723CD013TR 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 LM723CD013TR?
For technical support, including LM723CD013TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM723CD013TR requirements.
6.How does Aetrix verify that LM723CD013TR is sourced from the original manufacturer or authorized distributors?
All LM723CD013TR 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 LM723CD013TR meets industry standards.
7.What is the process for return or replacement of LM723CD013TR?
All LM723CD013TR units undergo pre-shipment inspection (PSI). If there is an issue with LM723CD013TR, 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 LM723CD013TR part is unused and in its original packaging.
Return procedure for LM723CD013TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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