My Inquiry
My Account
Texas Instruments TPS7A0528PDQNR
- Part No.:
- TPS7A0528PDQNR
- Manufacturer:
- Texas Instruments
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
TPS7A0528PDQNR.pdf
- Description:
- IC REG LINEAR 2.8V 200MA 4X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:2,750
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS7A0528PDQNR from Texas Instruments is a 1-µA ultralow IQ, 200-mA low-dropout regulator in a 1.0-mm × 1.0-mm X2SON-4 package, delivering 2.8 V fixed output with ±1% typical accuracy and 235 mV max dropout at 200 mA - optimized for battery-powered wearable electronics and always-on power rails.
For engineers reviewing the TPS7A0528PDQNR datasheet, TPS7A0528PDQNR pinout, TPS7A0528PDQNR application, or TPS7A0528PDQNR equivalent, key selection criteria include quiescent current (1 µA typ), shutdown current (300 nA max), active output discharge, foldback current limit, and stability with ≥0.47-µF ceramic output capacitance.
Technical Context
The TPS7A0528PDQNR employs a PMOS pass transistor architecture enabling ultralow IQ and fast transient response without requiring external compensation. Its enable-controlled operation supports precise power sequencing, while integrated thermal shutdown (160°C) and foldback current limiting protect against overloads.
It operates across –40°C to +125°C junction temperature, accepts input voltages from 1.4 V to 5.5 V, and maintains regulation down to 2.8 V output with ≤3% total accuracy over temperature and load - validated for Li-ion, Li-SOCl₂, Li-MnO₂, and multi-cell alkaline battery sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±1% typical accuracy ensures stable core voltage for low-power MCUs and sensors. |
| Quiescent Current | 1 µA typical (3 µA max) extends battery life in always-on applications like remote controls and wearables. |
| Max Output Current | 200 mA continuous output supports RF modules, BLE SoCs, and display drivers without thermal derating in X2SON-4. |
| Dropout Voltage | 235 mV max at 200 mA (2.8 VOUT) enables operation from single-cell Li-ion (3.0 V min) or two-cell alkaline (3.2 V). |
| Ground Current | 6 µA typical at 200 mA load confirms minimal parasitic loss - critical for energy harvesting and coin-cell designs. |
| Stability | Stable with ≥0.47 µF ceramic output capacitor; no ESR requirements simplify BOM and layout. |
| Enable Threshold | VEN(HI) = 0.9 V, VEN(LO) = 0.4 V allows direct interfacing with 1.8-V or 3.3-V logic without level shifters. |
Pinout & Package
TPS7A0528PDQNR is housed in a 1.0-mm × 1.0-mm, 4-pin X2SON (DQN) package with wettable flanks for automated optical inspection. Thermal pad must be connected to PCB ground plane for optimal thermal performance (RθJB = 83.5°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input supply | Accepts 1.4–5.5 V; requires ≥1-µF ceramic capacitor to GND placed adjacent to pin for transient immunity. |
| EN | Enable control | Active-high logic input; connect to IN if enable not needed; VEN must not exceed VIN. |
| GND | Ground reference | Primary return path for input/output currents; must tie directly to low-impedance system ground plane. |
| OUT | Regulated output | Delivers 2.8 V; requires ≥0.47-µF ceramic capacitor to GND placed within 2 mm for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow IQ | 1 µA typical consumption enables >10-year battery life in 10-µA average-load IoT endpoints. |
| Active output discharge | Internal pulldown resistor (120 Ω typ) rapidly discharges output on disable - prevents floating states in sequenced systems. |
| Foldback current limit | Reduces short-circuit current under overload (e.g., 65–150 mA SC limit), lowering thermal stress during fault conditions. |
| Wide input range | 1.4–5.5 V operation supports direct connection to diverse battery chemistries including Li-SOCl₂ (3.6 V) and 2× alkaline (3.2 V). |
| High PSRR | 40 dB at 1 kHz and 1 MHz improves noise rejection from noisy switching supplies feeding sensitive analog/RF circuits. |
Applications
| Wearable Health Monitor | Wireless Remote Control |
|---|---|
Use Scenario: Continuous ECG sensing with Bluetooth LE transmission in wrist-worn device powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Primary LDO supplying 2.8 V to ultra-low-power MCU and analog front-end, enabling 3+ year battery life. Use Value: 1 µA IQ and 235 mV dropout allow full regulation down to 2.9 V battery voltage, maximizing usable capacity. |
Use Scenario: IR-based TV remote with motion wake-up and Bluetooth pairing, operating from two AAA alkaline cells. IC Role / Device Role / Timing Role: Always-on LDO powering real-time clock and accelerometer; EN pin controlled by motion sensor interrupt. Use Value: Active output discharge ensures clean reset on wake-up; 300 nA shutdown current eliminates standby drain. |
| Smart Sensor Node | Portable Medical Device |
Use Scenario: Battery-powered environmental sensor node (temp/humidity/pressure) transmitting via LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: Main power rail for microcontroller, radio, and precision ADC - regulated from 3.6 V Li-SOCl₂ primary cell. Use Value: ±1% output accuracy and <3% total error over –40°C to +85°C ensure consistent sensor calibration across field deployments. |
Use Scenario: Handheld pulse oximeter using red/IR LEDs and photodiode amplifier, powered by rechargeable Li-ion. IC Role / Device Role / Timing Role: Low-noise 2.8 V supply for analog signal chain and OLED display driver, minimizing measurement drift. Use Value: 180 µVRMS output noise (10 Hz–100 kHz) and 40 dB PSRR suppress switching artifacts from adjacent DC/DC converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0528PDBVR | SOT-23-5 package (2.9 mm × 1.6 mm); includes NC pin; higher RθJA (185.6°C/W) vs X2SON-4 (144.1°C/W). | Better suited for prototyping or manual assembly; less space-constrained layouts where thermal margin is ample. | Select when board space permits larger footprint and hand-soldering is required; same electrical specs and pin compatibility (IN/GND/EN/OUT mapping preserved). |
| MCP1700T-2802E/TT | 250 mA rated, 1.6 µA IQ (typ), SOT-23-3 package; no enable pin or active discharge; 600 mV dropout at 250 mA. | Lacks enable control and fast discharge - unsuitable for sequenced power domains or low-noise discharge-critical systems. | Consider only for cost-sensitive, non-sequenced applications where 2.8 V accuracy and ultralow IQ are secondary to BOM simplicity. |
Compared with TPS7A0528PDBVR and MCP1700T-2802E/TT, the TPS7A0528PDQNR delivers superior thermal performance in ultra-compact layouts, guaranteed active discharge, and tighter accuracy - making it the preferred choice for space- and battery-life-constrained designs.
Availability
TPS7A0528PDQNR is available at Aetrix Electronics and suitable for wearable electronics, wireless remote controls, and portable medical devices requiring stable component supply with long-term lifecycle assurance.
Supply support for TPS7A0528PDQNR 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, designing and manufacturing analog ICs, embedded processors, and high-reliability components for industrial, automotive, and consumer markets.
The TPS7A05 family was engineered specifically for ultralow-power, space-constrained battery-operated systems - emphasizing nanoscale packaging, sub-µA quiescent current, and robust operation across wide temperature and input voltage ranges.
FAQ
What is the maximum input voltage rating for the TPS7A0528PDQNR?
The TPS7A0528PDQNR 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 cause permanent damage or violate safe operating area limits, especially under high ambient temperatures or heavy load conditions. Always observe the 6.0 V absolute maximum rating specified in Section 6.1 of the official datasheet.
Does the TPS7A0528PDQNR require an external pull-up resistor on the EN pin?
No, the TPS7A0528PDQNR does not require an external pull-up resistor on the EN pin. When enable functionality is not needed, the EN pin must be directly connected to the IN pin per datasheet guidance. The internal circuitry ensures proper startup and avoids floating states - adding external bias risks violating VEN ≤ VIN and may degrade reliability.
Can the TPS7A0528PDQNR operate with a 0.47-µF output capacitor?
Yes, the TPS7A0528PDQNR is explicitly characterized and guaranteed stable with a minimum 0.47-µF ceramic output capacitor - no ESR requirements or additional series resistance needed. This simplifies design and reduces bill-of-materials cost compared to legacy LDOs requiring tantalum or specific ESR ranges.
What is the thermal shutdown behavior of the TPS7A0528PDQNR?
The TPS7A0528PDQNR activates thermal shutdown at 160°C junction temperature and resets at 140°C (20°C hysteresis). During shutdown, the output is disabled and ground current drops to ≤300 nA. This protects the device during sustained overload or poor PCB thermal design while allowing automatic recovery once temperature falls below the reset threshold.
Is the TPS7A0528PDQNR compatible with Li-SOCl₂ primary batteries?
Yes, the TPS7A0528PDQNR is fully compatible with Li-SOCl₂ primary batteries. Its 1.4 V minimum input voltage, 1 µA typical quiescent current, and operation down to –40°C make it ideal for long-life applications such as utility meters and asset trackers powered by 3.6 V Li-SOCl₂ cells - confirmed in TI's official application guidance for primary battery systems.
TPS7A0528PDQNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 4-XDFN Exposed Pad
- 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):
- 2.8V
- 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:
- 4-X2SON (1x1)
TPS7A0528PDQNR FAQ
1.How can I place an order for TPS7A0528PDQNR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS7A0528PDQNR 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 TPS7A0528PDQNR reliable?
The price and inventory of TPS7A0528PDQNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS7A0528PDQNR is usually 5 days.
3.What payment methods are accepted for TPS7A0528PDQNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS7A0528PDQNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS7A0528PDQNR?
TPS7A0528PDQNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS7A0528PDQNR 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 TPS7A0528PDQNR?
For technical support, including TPS7A0528PDQNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS7A0528PDQNR requirements.
6.How does Aetrix verify that TPS7A0528PDQNR is sourced from the original manufacturer or authorized distributors?
All TPS7A0528PDQNR 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 TPS7A0528PDQNR meets industry standards.
7.What is the process for return or replacement of TPS7A0528PDQNR?
All TPS7A0528PDQNR units undergo pre-shipment inspection (PSI). If there is an issue with TPS7A0528PDQNR, 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 TPS7A0528PDQNR part is unused and in its original packaging.
Return procedure for TPS7A0528PDQNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS7A0528PDQNR Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
