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Texas Instruments TPS7A0530PDBZT
- Part No.:
- TPS7A0530PDBZT
- Manufacturer:
- Texas Instruments
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
TPS7A0530PDBZT.pdf
- Description:
- IC REG LINEAR 3V 200MA SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,075
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Product details
Overview
TPS7A0530PDBZT from Texas Instruments is a 3.0-V fixed-output, ultralow-quiescent-current (1 µA typ) low-dropout regulator capable of sourcing 200 mA with 235 mV max dropout at full load. It operates from 1.4 V to 5.5 V input, achieves ±1% output accuracy over temperature, and features active output discharge - making it ideal for battery-powered wearable electronics and always-on power rails.
For engineers reviewing the TPS7A0530PDBZT datasheet, TPS7A0530PDBZT pinout, TPS7A0530PDBZT application, or TPS7A0530PDBZT equivalent, key selection criteria include its 1-µA IQ, 3.0-V fixed output, SOT-23 (3-pin) package footprint, thermal shutdown (160°C), and compatibility with 0.47-µF minimum ceramic output capacitance.
Technical Context
The TPS7A0530PDBZT integrates a PMOS pass transistor enabling ultra-low dropout and near-zero reverse current during disable. Its enable pin (EN) accepts logic-high ≥0.9 V and logic-low ≤0.4 V, with leakage <10 nA, supporting direct connection to microcontroller GPIOs without pull-up resistors.
It employs foldback current limiting and internal thermal shutdown (trip at 160°C, reset at 140°C). The device remains stable with output capacitors as small as 0.47 µF and requires no external compensation - simplifying layout in space-constrained portable designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±1% (typical accuracy at 25°C); supports precision biasing of 3.0-V logic or analog circuitry. |
| Max Output Current | 200 mA continuous - sufficient for powering MCU cores, sensors, or RF transceivers in compact devices. |
| Quiescent Current | 1 µA typical, 3 µA maximum - extends battery life in multi-year IoT endpoints and wearables. |
| Dropout Voltage | 235 mV max at 200 mA (3.0-V output); enables operation down to 3.235 V input while maintaining regulation. |
| Input Voltage Range | 1.4 V to 5.5 V - compatible with single Li-ion (2.7–4.2 V), Li-SOCl₂ (3.6 V), or two-cell alkaline (2.4–3.2 V). |
| Output Capacitor | Stable with ≥0.47 µF ceramic - reduces BOM count and PCB area vs. traditional LDOs requiring 10-µF tantalum. |
| Enable Threshold | VEN(HI) = 0.9 V min, VEN(LO) = 0.4 V max - ensures reliable control from 1.8-V or 3.3-V I/O domains. |
Pinout & Package
TPS7A0530PDBZT uses the 3-pin SOT-23 (DBZ) package: 2.90 mm × 1.60 mm body, 0.95-mm height, surface-mount, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input supply | Accepts 1.4–5.5 V; requires ≥1-µF ceramic capacitor to ground for stability and transient response. |
| GND | Ground reference | Must connect directly to low-impedance system ground plane; serves as return path for all internal currents. |
| OUT | Regulated output | Delivers stable 3.0 V; requires ≥0.47-µF ceramic capacitor to ground - placed adjacent to pin for ESR/ESL minimization. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow IQ (1 µA) | Reduces standby power loss to <3 nW per µA - critical for coin-cell–powered devices with multi-year shelf life. |
| Active output discharge | Internally pulls OUT to GND when disabled, preventing floating voltage that could cause downstream latch-up or leakage. |
| Foldback current limit | Reduces short-circuit current under overload (e.g., 65–150 mA typical), lowering thermal stress during fault conditions. |
| Thermal shutdown | Shuts down at 160°C junction temperature and auto-resets at 140°C - protects against sustained overloads or poor heatsinking. |
| UVLO hysteresis | 40-mV hysteresis between 1.33-V turn-on and 1.29-V turn-off thresholds - prevents oscillation near brownout conditions. |
Applications
| Wearable Health Sensors | Always-On IoT Edge Node |
|---|---|
Use Scenario: Continuous ECG/PPG monitoring powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Primary 3.0-V supply for analog front-end and BLE SoC during sleep and active modes. Use Value: 1-µA quiescent current enables >5-year battery life; 0.47-µF output cap fits tight wristband PCB real estate. |
Use Scenario: Environmental sensor node sampling temperature/humidity every 5 minutes using Li-SOCl₂ primary battery. IC Role / Device Role / Timing Role: Always-on LDO supplying RTC, wake-up controller, and flash memory retention voltage. Use Value: Stable 3.0-V output across –40°C to +85°C ensures accurate sensor calibration; UVLO prevents erratic behavior during cold start. |
| Wireless Remote Control | Portable Medical Diagnostic Tool |
Use Scenario: IR/Bluetooth remote with motion-triggered wake-up and button press transmission. IC Role / Device Role / Timing Role: Power source for MCU and radio during burst transmit (200 mA peak) and deep-sleep (1 µA). Use Value: 235-mV dropout at 200 mA allows operation down to 3.235 V - maximizing usable battery voltage range from alkaline cells. |
Use Scenario: Handheld glucose meter with LCD, LED backlight, and electrochemical sensor interface. IC Role / Device Role / Timing Role: Clean 3.0-V rail for precision ADC reference and op-amp signal conditioning. Use Value: ±1% output accuracy and low noise (<180 µVRMS) ensure sub-1% measurement repeatability across battery discharge cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-quiescent-current LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0530PDQNR | Same electrical specs, but in 1.0-mm × 1.0-mm X2SON-4 package - 60% smaller footprint, no EN pin (always-on). | Used where board space is critical and enable control is unnecessary (e.g., fixed-power subsystems). | Select PDQNR only if EN functionality is not required and PCB layout allows X2SON rework. |
| MCP1700T-3002E/TT | 3.0-V fixed LDO with 1.6-µA IQ, 250-mA rating, but 600-mV dropout at 250 mA - significantly higher than TPS7A0530PDBZT's 235 mV. | Suitable for less aggressive input-voltage headroom designs (e.g., 3.6-V Li-ion systems), but not for 3.3-V or lower inputs. | Choose MCP1700 only when cost sensitivity outweighs efficiency and dropout requirements. |
Compared with TPS7A0530PDQNR and MCP1700T-3002E/TT, the TPS7A0530PDBZT uniquely balances ultra-low IQ, low dropout, and integrated enable control in a standard SOT-23 footprint - making it optimal for battery-constrained, feature-rich portable devices requiring flexible power sequencing.
Availability
TPS7A0530PDBZT is available at Aetrix Electronics and suitable for wearable electronics, always-on IoT edge nodes, and portable medical diagnostic tools requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS7A0530PDBZT 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TPS7A05 family was designed specifically for ultra-low-power, space-constrained battery-operated applications - emphasizing nanoscale IQ, minimal external components, and robust operation across extended temperature ranges (–40°C to +125°C).
FAQ
What is the maximum input voltage rating for the TPS7A0530PDBZT?
The TPS7A0530PDBZT has an absolute maximum input voltage of 6.0 V. However, its recommended operating input range is 1.4 V to 5.5 V. Exceeding 5.5 V may compromise reliability or parametric performance, and operation above 6.0 V risks permanent damage per the Absolute Maximum Ratings table in the datasheet.
Does the TPS7A0530PDBZT require an external enable pull-up resistor?
No, the TPS7A0530PDBZT does not require an external pull-up resistor on the EN pin. Its EN pin draws only 10 nA typical current at 5.5 V, allowing direct connection to a microcontroller GPIO. If enable functionality is unused, EN must be tied to IN - not left floating - to guarantee proper operation of the TPS7A0530PDBZT.
Can the TPS7A0530PDBZT operate with a 0.22-µF output capacitor?
No. The TPS7A0530PDBZT requires a minimum 0.47-µF ceramic output capacitor for guaranteed stability across all operating conditions. Using 0.22 µF violates the stability condition and may cause oscillation or poor transient response - confirmed in Section 6.3 (Recommended Operating Conditions) and Figure 42 of the TPS7A0530PDBZT datasheet.
What is the thermal shutdown behavior of the TPS7A0530PDBZT?
The TPS7A0530PDBZT activates thermal shutdown at 160°C junction temperature and automatically resumes regulation when the die cools to approximately 140°C. This hysteresis prevents cycling near the trip point. The SOT-23 (DBZ) package has RθJA = 267.3°C/W - meaning ambient-to-junction rise is ~53°C at 200 mA with no heatsink, well below shutdown threshold under typical conditions.
Is the TPS7A0530PDBZT pin-compatible with other TPS7A05 variants?
No. The TPS7A0530PDBZT uses a 3-pin SOT-23 (IN-GND-OUT) configuration with no EN pin. In contrast, the DBV (5-pin SOT-23) and DQN (4-pin X2SON) variants include dedicated EN and NC pins. Pin mapping differs fundamentally - substituting packages requires PCB redesign, not just footprint adaptation.
TPS7A0530PDBZT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- 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):
- 0.308V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 3 µA
- Current - Supply (Max):
- -
- PSRR:
- 40dB (1kHz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
TPS7A0530PDBZT FAQ
1.How can I place an order for TPS7A0530PDBZT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS7A0530PDBZT 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 TPS7A0530PDBZT reliable?
The price and inventory of TPS7A0530PDBZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS7A0530PDBZT is usually 5 days.
3.What payment methods are accepted for TPS7A0530PDBZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS7A0530PDBZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS7A0530PDBZT?
TPS7A0530PDBZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS7A0530PDBZT 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 TPS7A0530PDBZT?
For technical support, including TPS7A0530PDBZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS7A0530PDBZT requirements.
6.How does Aetrix verify that TPS7A0530PDBZT is sourced from the original manufacturer or authorized distributors?
All TPS7A0530PDBZT 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 TPS7A0530PDBZT meets industry standards.
7.What is the process for return or replacement of TPS7A0530PDBZT?
All TPS7A0530PDBZT units undergo pre-shipment inspection (PSI). If there is an issue with TPS7A0530PDBZT, 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 TPS7A0530PDBZT part is unused and in its original packaging.
Return procedure for TPS7A0530PDBZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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