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Texas Instruments TPS73630MDBVREP
- Part No.:
- TPS73630MDBVREP
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS73630MDBVREP.pdf
- Description:
- IC REG LINEAR 3V 400MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,780
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Product details
Overview
TPS73630MDBVREP from Texas Instruments is a radiation-hardened, extended-temperature (-55°C to +125°C), cap-free NMOS low-dropout linear regulator delivering 400mA output at fixed 3.0V with 75mV typical dropout, 1% overall accuracy over line/load/temperature, and 30μVRMS output noise (10Hz–100kHz). It enables stable power for precision analog circuitry in space-grade and harsh-environment systems.
For engineers reviewing the TPS73630MDBVREP datasheet, TPS73630MDBVREP pinout, TPS73630MDBVREP application, or TPS73630MDBVREP equivalent, key selection criteria include ultra-low dropout under 400mA load, reverse current protection (<15μA), shutdown current <1μA, no-output-capacitor stability, and SOT-23-5 packaging qualified for high-reliability aerospace deployment.
Technical Context
The TPS73630MDBVREP employs an NMOS pass element in voltage-follower topology, enabling stable operation without output capacitance while achieving 75mV dropout at 400mA. Its BiCMOS process delivers low ground-pin current (400–1000μA across load) and near-constant quiescent current versus output load.
It integrates thermal shutdown (trip at 160°C, reset at 140°C), foldback current limiting (400–800mA), and active reverse current blocking-enabled only when EN is asserted low before VIN removal. The NR pin supports external noise reduction capacitor (CNR) to lower output noise to 8.5×VOUT μVRMS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±1% over –55°C to +125°C, line, and load - ensures stable rail for DSPs/FPGAs without trimming. |
| Max Output Current | 400mA continuous - sufficient for powering core logic of radiation-tolerant microprocessors. |
| Dropout Voltage | 75mV typical at 400mA - enables regulation from 3.075V input, critical for battery-powered space payloads. |
| Output Noise | 30μVRMS (10Hz–100kHz, no CNR); 25.5μVRMS with 0.01μF CNR - meets VCO/PLL supply noise requirements. |
| Shutdown Current | <1μA max - preserves battery life during dormant satellite modes. |
| Input Voltage Range | 1.7V to 5.5V - compatible with wide-input DC-DC post-regulation and Li-ion/Li-SOCl₂ battery stacks. |
| Accuracy | ±0.5% initial; ±1% over full temperature, line, and load - eliminates need for external calibration in flight hardware. |
Pinout & Package
SOT-23-5 (DBV) package: 2.9mm × 1.6mm × 1.15mm body, gull-wing leads, RoHS-compliant, qualified per MIL-PRF-38535 Class V and QML-V standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Unregulated input supply | Accepts 1.7–5.5V; internal charge pump derives gate drive for NMOS pass device. |
| GND (Pin 2) | Ground reference | Common return for IN, OUT, EN, and NR; requires dedicated low-impedance connection per layout guidelines. |
| EN (Pin 3) | Enable control | Active-high TTL/CMOS-compatible; drives low (<0.5V) to reduce IQ to <1μA; can be tied to IN if unused. |
| NR (Pin 4) | Noise reduction bypass | Connects to internal bandgap reference; 0.01μF CNR reduces output noise by ~3.2× (to 25.5μVRMS). |
| OUT (Pin 5) | Regulated output | Delivers stable 3.0V; zero-output-capacitor stable; no ESR constraints on optional COUT. |
Key Features
| Feature | Design Value |
|---|---|
| Cap-free stability | Operates with zero output capacitance - eliminates capacitor aging, derating, and board space in long-life missions. |
| Reverse current protection | <15μA reverse leakage at VOUT = 3.0V, VIN = 0V - prevents backfeed into failed upstream supplies in redundant power architectures. |
| Ultra-low noise | 30μVRMS (10Hz–100kHz) with no CNR; reduced to 25.5μVRMS with 0.01μF CNR - suitable for RF synthesizer VCO rails. |
| Extended temperature range | –55°C to +125°C operation with full electrical specs - validated for LEO/MEO satellite bus and planetary rover electronics. |
| Controlled baseline manufacturing | Single assembly/test/fab site with enhanced DMS support - guarantees supply continuity and traceability for Class V programs. |
Applications
| Spacecraft Power Management | High-Reliability FPGA Core Supply |
|---|---|
|
Use Scenario: Regulating secondary power rail for radiation-hardened FPGAs in CubeSat command & data handling units. IC Role / Device Role / Timing Role: Primary 3.0V core LDO supplying FPGA I/O banks and configuration logic with transient immunity. Use Value: 75mV dropout allows operation from degraded 3.3V bus; 400mA capacity covers peak FPGA switching currents; cap-free design avoids capacitor failure in vacuum. |
Use Scenario: Providing clean, stable 3.0V to analog front-end ADCs and DACs in deep-space probe telemetry subsystems. IC Role / Device Role / Timing Role: Low-noise post-regulator after switching converter, decoupling digital noise from precision signal chain. Use Value: 30μVRMS noise meets 16-bit ADC SNR requirements; NR pin enables further noise reduction to 25.5μVRMS for sub-LSB performance. |
| Military Avionics Sensor Interface | Radiation-Tolerant Microprocessor Core Rail |
|
Use Scenario: Powering MEMS inertial measurement units (IMUs) in fighter jet navigation systems operating at –55°C to +125°C. IC Role / Device Role / Timing Role: Precision LDO delivering invariant 3.0V despite wide input variation and thermal cycling. Use Value: ±1% accuracy over full temp range eliminates calibration drift; thermal shutdown (160°C) protects against enclosure overheating. |
Use Scenario: Supplying core voltage to rad-tolerant ARM-based SoCs in satellite onboard computers during orbital eclipse phases. IC Role / Device Role / Timing Role: Low-IQ enable-controlled regulator maintaining 3.0V rail during sleep mode with <1μA shutdown current. Use Value: Enables multi-year battery-only operation in eclipse; reverse current blocking isolates SoC from failing backup batteries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS73633MDBVREP | Fixed 3.3V output; identical package, specs, and qualification - differs only in nominal output voltage. | Used where system requires 3.3V I/O rail instead of 3.0V core rail; not interchangeable without schematic change. | Select when 3.3V is required; same footprint, thermal, and reliability profile - minimal redesign needed. |
| TPS7H3301-SP | Rad-hard 3A LDO with 150mV dropout; larger HTSSOP-16 package; higher IQ (2.5mA); no NR pin. | Targets high-current loads (e.g., RF power amps); lacks cap-free operation and ultra-low noise capability. | Choose for >400mA needs; avoid when low noise, cap-free operation, or micro-power shutdown are mandatory. |
Compared with TPS73630MDBVREP, TPS73633MDBVREP offers identical performance at 3.3V but requires voltage-level alignment, while TPS7H3301-SP trades noise/size/power efficiency for higher current - making TPS73630MDBVREP optimal for precision, low-power, space-constrained 3.0V regulation.
Availability
TPS73630MDBVREP is available at Aetrix Electronics and suitable for spacecraft power management, high-reliability FPGA core supply, military avionics sensor interface, and radiation-tolerant microprocessor core rail applications requiring stable component supply across extended temperature and radiation environments.
Supply support for TPS73630MDBVREP 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 leader specializing in analog, embedded processing, and high-reliability ICs, with decades of heritage in space-grade component development and qualification.
The TPS736xx-EP product line delivers radiation-tolerant, extended-temperature LDO regulators optimized for aerospace, defense, and nuclear instrumentation - emphasizing cap-free operation, ultra-low noise, and reverse current protection in compact packages.
FAQ
What is the maximum input voltage rating for the TPS73630MDBVREP?
The TPS73630MDBVREP has an absolute maximum input voltage of 6V, but its operational input range is specified from 1.7V to 5.5V. Exceeding 5.5V may cause permanent damage or violate safe operating area limits, especially under high ambient temperatures. Always maintain VIN ≤ 5.5V in functional designs using TPS73630MDBVREP.
Does the TPS73630MDBVREP require an output capacitor for stability?
No, the TPS73630MDBVREP is explicitly designed to be stable with zero output capacitance due to its NMOS voltage-follower topology. It remains stable across all capacitor types and values if added - including ceramic, tantalum, or polymer - with no minimum ESR requirement. This cap-free capability is a verified feature of TPS73630MDBVREP per its datasheet.
How does the NR pin function on the TPS73630MDBVREP?
The NR (Noise Reduction) pin on TPS73630MDBVREP connects internally to the bandgap reference node. Adding a capacitor (e.g., 0.01μF) from NR to GND forms a low-pass filter that reduces output noise from 30μVRMS to ~25.5μVRMS (10Hz–100kHz). This function is confirmed in the TPS73630MDBVREP datasheet Figure 5-18 and Section 7.1.2.
What is the reverse current specification for the TPS73630MDBVREP?
The TPS73630MDBVREP specifies reverse leakage current (IREV) of ≤15μA when VOUT = 3.0V and VIN = 0V, with EN driven low. This reverse current blocking is enabled only after EN is asserted low prior to VIN removal - a critical sequencing requirement documented in Section 7.1.8 of the TPS73630MDBVREP datasheet.
Is the TPS73630MDBVREP qualified for space applications?
Yes, the TPS73630MDBVREP is a Class V QML-V qualified device per MIL-PRF-38535, featuring controlled baseline manufacturing, extended temperature operation (–55°C to +125°C), and radiation tolerance testing including TID and SEE characterization. Its qualification pedigree is explicitly stated in the TPS73630MDBVREP datasheet Feature section and Product Folder.
TPS73630MDBVREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.2V @ 400mA
- Current - Output:
- 400mA
- Current - Quiescent (Iq):
- 550 µA
- Current - Supply (Max):
- 1 mA
- PSRR:
- 58dB ~ 37dB (100Hz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TPS73630MDBVREP FAQ
1.How can I place an order for TPS73630MDBVREP through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS73630MDBVREP 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 TPS73630MDBVREP reliable?
The price and inventory of TPS73630MDBVREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS73630MDBVREP is usually 5 days.
3.What payment methods are accepted for TPS73630MDBVREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS73630MDBVREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS73630MDBVREP?
TPS73630MDBVREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS73630MDBVREP 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 TPS73630MDBVREP?
For technical support, including TPS73630MDBVREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS73630MDBVREP requirements.
6.How does Aetrix verify that TPS73630MDBVREP is sourced from the original manufacturer or authorized distributors?
All TPS73630MDBVREP 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 TPS73630MDBVREP meets industry standards.
7.What is the process for return or replacement of TPS73630MDBVREP?
All TPS73630MDBVREP units undergo pre-shipment inspection (PSI). If there is an issue with TPS73630MDBVREP, 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 TPS73630MDBVREP part is unused and in its original packaging.
Return procedure for TPS73630MDBVREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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