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Texas Instruments TPS7A051825PYKAR
- Part No.:
- TPS7A051825PYKAR
- Manufacturer:
- Texas Instruments
- Package:
- 4-XFBGA, DSBGA
- Datasheet:
-
TPS7A051825PYKAR.pdf
- Description:
- IC REG LIN 1.825V 200MA 4DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,078
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Product details
Overview
TPS7A051825PYKAR from Texas Instruments is an ultralow-quiescent-current LDO regulator delivering 200 mA output at fixed 1.825 V with ±0.9% accuracy over +10°C to +45°C, 1 µA typical IQ, and 235 mV max dropout at 200 mA - designed for battery-powered wearables and always-on subsystems.
For engineers reviewing the TPS7A051825PYKAR datasheet, TPS7A051825PYKAR pinout, TPS7A051825PYKAR application, or TPS7A051825PYKAR equivalent, key selection criteria include ultralow shutdown current (≤300 nA), active output discharge, DSBGA-4 (0.65 mm × 0.65 mm) package compatibility, and stability with ≥0.47 µF ceramic output capacitance.
Technical Context
The TPS7A051825PYKAR integrates a precision bandgap reference, error amplifier, and PMOS pass transistor in a fully integrated LDO architecture. Its foldback current limit and thermal shutdown (160°C trip, 140°C reset) provide robust fault protection without external components.
It operates across 1.4 V–5.5 V input range and supports fast transient response via internal compensation optimized for 0.47–22 µF COUT. The enable pin (VEN(HI) = 0.9 V, VEN(LO) = 0.4 V) allows precise power sequencing control with ≤10 nA leakage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.825 V, ±0.9% accuracy over +10°C to +45°C - ensures stable core voltage for low-power MCUs and sensors. |
| Max Output Current | 200 mA - sufficient for powering RF transceivers, BLE SoCs, or display drivers in compact portable devices. |
| Quiescent Current | 1 µA typical, 3 µA max - extends battery life in multi-year IoT endpoints and always-on wake-up circuits. |
| Dropout Voltage | 235 mV max at 200 mA (1.825 VOUT) - enables operation from partially discharged Li-MnO₂ or two-cell alkaline batteries. |
| Ground Current | 6 µA typical at 200 mA load - minimizes total system supply current in ultra-low-power sleep modes. |
| Input Voltage Range | 1.4 V to 5.5 V - compatible with single Li-ion, Li-SOCl₂, and 2–3 cell alkaline/AA/AAA battery stacks. |
| Output Capacitance | Stable with ≥0.47 µF ceramic capacitor - eliminates need for large, costly tantalum or electrolytic capacitors. |
Pinout & Package
TPS7A051825PYKAR uses the YKA package: 4-pin DSBGA, 0.35-mm pitch, 0.65 mm × 0.65 mm body size, bottom-side thermal pad connected to GND for enhanced thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input supply | Accepts 1.4–5.5 V input; requires ≥1 µF ceramic decoupling placed adjacent to pin for EMI suppression and transient response. |
| EN | Enable control | Logic-high (>0.9 V) enables regulation; logic-low (<0.4 V) disables output and activates active pulldown (120 Ω) for rapid discharge. |
| GND | Ground reference | Must be connected to PCB ground plane; thermal pad (exposed bottom) must also connect to GND for thermal dissipation. |
| OUT | Regulated output | Delivers 1.825 V ±0.9%; requires ≥0.47 µF ceramic capacitor from OUT to GND for stability and load-transient immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow IQ | 1 µA typical quiescent current enables >10-year battery life in coin-cell-powered sensors and wearables. |
| Active Output Discharge | Integrated 120 Ω pulldown resistor discharges output within milliseconds upon disable - prevents floating voltage during power sequencing. |
| Foldback Current Limit | Reduces short-circuit current to 65–150 mA under fault conditions - protects PCB traces and upstream power sources without external fusing. |
| UVLO Protection | 1.3 V nominal UVLO threshold with 40 mV hysteresis prevents erratic startup during brownout or weak battery conditions. |
| Thermal Shutdown | 160°C trip temperature with 20°C hysteresis ensures safe operation under sustained overload or poor heatsinking. |
Applications
| Wearable Health Sensors | Always-On MCU Subsystems |
|---|---|
Use Scenario: Continuous ECG/PPG monitoring in wrist-worn devices powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Primary 1.825 V supply for ultra-low-power microcontroller and analog front-end. Use Value: 1 µA IQ extends battery life beyond 3 years; active discharge ensures clean reset between sensor sampling cycles. |
Use Scenario: Always-on real-time clock and wake-up interrupt controller in smart home hubs. IC Role / Device Role / Timing Role: Standby power rail maintaining RTC, memory retention, and GPIO wake detection. Use Value: 300 nA shutdown current prevents battery drain during deep-sleep; 1.4 V min input supports aging battery operation. |
| Wireless Remote Controls | Portable Medical Diagnostics |
Use Scenario: BLE-enabled TV remote using AA alkaline cells with multi-year shelf life. IC Role / Device Role / Timing Role: Regulated 1.825 V source for BLE SoC and button interface circuitry. Use Value: 235 mV dropout allows full utilization of battery voltage down to 2.06 V; foldback limit prevents damage during accidental short. |
Use Scenario: Handheld glucose meter operating from single AAA battery with 5-year shelf life requirement. IC Role / Device Role / Timing Role: Precision 1.825 V reference and analog supply for ADC and sensor biasing. Use Value: ±0.9% output accuracy over temperature ensures consistent measurement calibration; DSBGA-4 footprint saves board space in handheld enclosure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0518PYKAR | Fixed 1.8 V output (vs. 1.825 V); identical IQ, dropout, and package - no electrical or layout change required. | Suitable where 1.8 V tolerance meets system margin; not appropriate for designs requiring exact 1.825 V for ADC reference or core logic. | Select when 1.8 V suffices and tighter output voltage spec is unnecessary. |
| MCP1700T-1802E/TT | 1.8 V output, 1.6 µA IQ (typ), SOT-23-3 package, 600 mV dropout at 250 mA - higher dropout and larger footprint. | Compatible for low-current always-on rails but unsuitable for high-load or space-constrained designs due to thermal and size limitations. | Consider only if SOT-23-3 is mandated and load current remains <100 mA with adequate headroom. |
Compared with TPS7A051825PYKAR, TPS7A0518PYKAR offers identical performance in a pin-compatible DSBGA-4 package with only 25 mV lower output voltage, while MCP1700T-1802E/TT trades ultralow IQ for legacy packaging and higher dropout - making it less suitable for modern compact, battery-sensitive designs.
Availability
TPS7A051825PYKAR is available at Aetrix Electronics and suitable for wearable electronics, always-on power supplies, and portable medical diagnostics requiring stable component supply with guaranteed long-term availability.
Supply support for TPS7A051825PYKAR 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 and embedded processing technologies, with decades of expertise in power management IC design.
The TPS7A05 family delivers ultralow-IQ LDO regulation for battery-critical applications - engineered specifically for extended runtime in wearables, IoT edge nodes, and portable medical devices.
FAQ
What is the output voltage tolerance of the TPS7A051825PYKAR over temperature?
The TPS7A051825PYKAR guarantees ±0.9% output voltage accuracy over the +10°C to +45°C junction temperature range. At full –40°C to +125°C operating range, accuracy degrades to ±3% for outputs ≥1.0 V, ensuring reliable performance across industrial and consumer environments where the TPS7A051825PYKAR is deployed.
Does the TPS7A051825PYKAR require an external pull-up on the EN pin?
No, the TPS7A051825PYKAR does not require an external pull-up on the EN pin. When enable functionality is unused, EN must be directly connected to IN per datasheet guidance. The device draws only 10 nA at EN when VIN = 5.5 V, minimizing any impact on system power budget for the TPS7A051825PYKAR.
Can the TPS7A051825PYKAR operate from a single Li-SOCl₂ battery?
Yes, the TPS7A051825PYKAR supports input voltages as low as 1.4 V, making it compatible with single Li-SOCl₂ primary cells that maintain ~3.6 V open-circuit voltage and discharge down to ~2.0 V. Its 235 mV dropout at 200 mA ensures usable regulation throughout the TPS7A051825PYKAR's operational lifetime.
What is the minimum output capacitance required for stability with the TPS7A051825PYKAR?
The TPS7A051825PYKAR is stable with a minimum 0.47 µF ceramic output capacitor. Using smaller or non-ceramic capacitors may cause oscillation or degraded transient response. For optimal performance, TI recommends 1 µF X7R/X5R ceramic placed close to the OUT and GND pins of the TPS7A051825PYKAR.
How does the active output discharge function work in the TPS7A051825PYKAR?
When EN is driven low, the TPS7A051825PYKAR activates an internal 120 Ω pulldown resistor between OUT and GND, discharging the output capacitor rapidly. This prevents residual voltage from interfering with downstream logic states or causing unintended wake events - a critical feature for reliable power sequencing in the TPS7A051825PYKAR.
TPS7A051825PYKAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 4-XFBGA, DSBGA
- 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):
- 1.825V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.382V @ 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-DSBGA
TPS7A051825PYKAR FAQ
1.How can I place an order for TPS7A051825PYKAR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS7A051825PYKAR 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 TPS7A051825PYKAR reliable?
The price and inventory of TPS7A051825PYKAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS7A051825PYKAR is usually 5 days.
3.What payment methods are accepted for TPS7A051825PYKAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS7A051825PYKAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS7A051825PYKAR?
TPS7A051825PYKAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS7A051825PYKAR 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 TPS7A051825PYKAR?
For technical support, including TPS7A051825PYKAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS7A051825PYKAR requirements.
6.How does Aetrix verify that TPS7A051825PYKAR is sourced from the original manufacturer or authorized distributors?
All TPS7A051825PYKAR 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 TPS7A051825PYKAR meets industry standards.
7.What is the process for return or replacement of TPS7A051825PYKAR?
All TPS7A051825PYKAR units undergo pre-shipment inspection (PSI). If there is an issue with TPS7A051825PYKAR, 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 TPS7A051825PYKAR part is unused and in its original packaging.
Return procedure for TPS7A051825PYKAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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