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Texas Instruments TPS71825-12DRVR
- Part No.:
- TPS71825-12DRVR
- Manufacturer:
- Texas Instruments
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS71825-12DRVR.pdf
- Description:
- IC REG LIN 2.5V/1.2V 200MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:18,000
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Product details
Overview
TPS71825-12DRVR from Texas Instruments is a dual-output, 200mA low-noise LDO regulator with independent enables, delivering fixed 2.5V on OUT1 and 1.2V on OUT2. It operates from 2.7V to 6.5V input, achieves 230mV dropout at full load, and maintains ±3% output accuracy over temperature and load. It is used in space-constrained portable systems requiring clean, sequenced power for baseband processors and camera modules.
For engineers reviewing the TPS71825-12DRVR datasheet, TPS71825-12DRVR pinout, TPS71825-12DRVR application, or TPS71825-12DRVR equivalent, key selection criteria include dual-rail voltage generation with independent enable control, ultra-low 90µA quiescent current (both LDOs enabled), 70µVRMS output noise, 65dB PSRR at 1kHz, and stable operation with 1µF ceramic output capacitors.
Technical Context
The TPS71825-12DRVR integrates two independent PMOS-based LDO regulators sharing a common IN and GND, each with dedicated EN pins (EN1/EN2) and output pins (OUT1/OUT2). Its sub-bandgap reference and advanced BiCMOS process enable stable 2.5V/1.2V outputs across –40°C to +125°C with 3% total accuracy.
It employs low-headroom architecture optimized for high PSRR (44dB at 1MHz) and fast transient response (160µs startup), while its active low-current mode ensures regulation down to zero load. The device includes over-current, over-temperature, and UVLO protection, with thermal shutdown triggering at +160°C and resetting at +140°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 6.5V - supports single-cell Li-ion (3.0–4.2V) and dual-cell alkaline inputs without external pre-regulation. |
| Output Voltages | OUT1 = 2.5V, OUT2 = 1.2V - factory-programmed fixed outputs; no external resistors required for voltage setting. |
| Max Output Current | 200mA per channel - sufficient for powering core logic, RF transceivers, or image sensors in handheld devices. |
| Dropout Voltage | 230mV at 200mA - enables 2.5V output from 2.73V input, maximizing battery runtime in low-VIN conditions. |
| Ground Current | 90µA (both LDOs enabled) - minimizes standby power loss in always-on subsystems like real-time clocks or wake-up controllers. |
| PSRR @ 1kHz | 65dB - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Output Noise | 70µVRMS (100Hz–100kHz) - meets stringent analog supply requirements for ADCs, PLLs, and RF front-ends. |
Pinout & Package
TPS71825-12DRVR is packaged in a 2mm × 2mm WSON-6 (DRV) package with an exposed thermal pad connected to GND. This thermally enhanced SON package enables efficient heat dissipation in compact PCB layouts typical of mobile and wearable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 | Regulator 1 output | Delivers stable 2.5V; requires ≥1µF ceramic capacitor to GND for stability and transient response. |
| IN | Common input supply | Accepts 2.7–6.5V; shared by both LDOs; benefits from local 0.1–1µF bypass capacitor near pin. |
| OUT2 | Regulator 2 output | Delivers stable 1.2V; independently regulated; same capacitor requirement as OUT1. |
| EN2 | Enable for OUT2 | Active-high TTL/CMOS-compatible; drives high (>1.25V) to activate OUT2; pulls low (<0.4V) for shutdown. |
| GND | Power and signal ground | Common return for both regulators; thermal pad must be soldered to PCB ground plane for thermal performance. |
| EN1 | Enable for OUT1 | Independent active-high control for OUT1; allows flexible power sequencing (e.g., OUT1 before OUT2). |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enables | EN1 and EN2 allow precise power sequencing and dynamic rail disabling-critical for low-power modes in SoC-based systems. |
| Stable with 1µF ceramic output caps | Eliminates need for large, costly tantalum or aluminum electrolytic capacitors; reduces BOM count and board area. |
| Low-noise 70µVRMS output | Enables direct powering of noise-sensitive analog circuits (e.g., VCOs, ADC references) without additional filtering. |
| 65dB PSRR at 1kHz | Effectively attenuates ripple from noisy switchers (e.g., buck converters), simplifying system-level EMI design. |
| Fast 160µs startup time | Supports rapid wake-up from deep sleep states in battery-powered devices, minimizing latency in responsive user interfaces. |
Applications
| Mobile Baseband Power | Camera Module Supply |
|---|---|
Use Scenario: Powering ARM-based application processors and modem subsystems in smartphones and tablets where multiple voltage rails are needed with tight sequencing. IC Role / Device Role / Timing Role: Dual-rail LDO providing 2.5V for I/O peripherals and 1.2V for CPU core, with independent EN1/EN2 enabling controlled ramp-up and safe power-down. Use Value: Eliminates need for discrete sequencing ICs; 90µA quiescent current extends battery life during idle states. | Use Scenario: Supplying image sensor, ISP, and autofocus actuator in digital cameras and smartphone camera modules. IC Role / Device Role / Timing Role: Delivers clean, low-noise 2.5V (sensor analog supply) and 1.2V (ISP core) with simultaneous or staggered enable based on imaging pipeline timing. Use Value: 70µVRMS noise and 65dB PSRR prevent image artifacts (e.g., banding, fixed-pattern noise) caused by supply contamination. |
| Wireless Audio SoC | Portable Medical Sensor Node |
Use Scenario: Powering Bluetooth audio SoCs (e.g., CSR8675, DA1458x) requiring separate 2.5V AVDD and 1.2V DVDD rails. IC Role / Device Role / Timing Role: Provides tightly regulated, low-noise dual supplies; EN1/EN2 synchronized with Bluetooth stack power management events. Use Value: Fast 160µs startup enables quick connection resumption; low dropout preserves battery headroom during peak transmit current. | Use Scenario: Powering ultra-low-power medical sensors (e.g., pulse oximeter, ECG front-end) in wearable patches or handheld diagnostics. IC Role / Device Role / Timing Role: Supplies precision analog circuitry (2.5V reference, op-amps) and digital controller (1.2V) with guaranteed ±3% accuracy across body temperature range (–10°C to +50°C). Use Value: Guaranteed accuracy and thermal shutdown (+160°C) ensure reliable operation under skin-contact thermal stress and extended wear. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS71825-18DRVR | Same DRV package and pinout; OUT2 = 1.8V instead of 1.2V. | Suitable for systems needing 2.5V/1.8V (e.g., SDIO interface + core logic), not 1.2V logic. | Select when target SoC requires 1.8V I/O rail instead of 1.2V core voltage. |
| TPS71925-12DRVR | Same pinout and output voltages; adds active pulldown on OUT2 for faster discharge during shutdown. | Required where rapid output discharge is critical (e.g., hot-swap, rail isolation), but increases quiescent current slightly. | Choose if fast VOUT2 discharge (<180µs) is mandatory; otherwise TPS71825-12DRVR offers lower IQ. |
Compared with TPS71825-12DRVR, TPS71825-18DRVR changes only the second output voltage (1.8V vs 1.2V), making it a direct functional substitute for different I/O standards, while TPS71925-12DRVR adds active pulldown at the cost of higher shutdown current-offering trade-offs between discharge speed and static power.
Availability
TPS71825-12DRVR is available at Aetrix Electronics and suitable for mobile baseband power, camera module supply, wireless audio SoC, and portable medical sensor node applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TPS71825-12DRVR 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 connectivity technologies, with decades of expertise in power management ICs.
The TPS718xx family was designed specifically for portable, battery-powered applications demanding ultra-low quiescent current, dual-rail flexibility, and minimal board space-targeting smartphones, digital cameras, and WLAN devices.
FAQ
What are the exact output voltages of the TPS71825-12DRVR?
The TPS71825-12DRVR delivers precisely 2.5V on OUT1 and 1.2V on OUT2. These values are factory-programmed via EEPROM and are fixed-no external feedback resistors are used or required. Output accuracy is guaranteed at ±3% over full operating temperature (–40°C to +125°C), line, and load conditions, as confirmed in the Electrical Characteristics table of the SBVS088C datasheet.
Does the TPS71825-12DRVR require external capacitors, and what type is recommended?
Yes, the TPS71825-12DRVR requires ≥1.0µF ceramic output capacitors on both OUT1 and OUT2, and a 0.1–1.0µF ceramic input capacitor on IN is strongly recommended. X5R or X7R dielectrics are preferred due to stable capacitance and low ESR (<1.0Ω) across temperature. The device is unstable with high-ESR capacitors such as standard electrolytics or aged tantalums.
Can the TPS71825-12DRVR operate with an input voltage below 2.7V?
No-the absolute minimum input voltage for the TPS71825-12DRVR is 2.7V, as specified in the Absolute Maximum Ratings and Electrical Characteristics tables. Below this, the internal UVLO circuit holds both outputs disabled. Even though the dropout voltage is 230mV, the minimum VIN is defined as max(VOUT + VDO, 2.7V); thus, 2.5V + 0.23V = 2.73V still exceeds the 2.7V floor, confirming 2.7V as the hard lower limit.
How does the thermal protection work on the TPS71825-12DRVR?
The TPS71825-12DRVR activates thermal shutdown at approximately +160°C junction temperature and resets at +140°C. During shutdown, both outputs are disabled until cooling occurs. This hysteresis prevents oscillation near the trip point. Continuous cycling indicates insufficient PCB copper or heatsinking-TI recommends using the exposed thermal pad tied to a solid GND plane and verifying junction temperature via ambient + power dissipation × RθJA (95°C/W for DRV on high-K board).
Is the TPS71825-12DRVR pin-compatible with other members of the TPS718xx family?
Yes-TPS71825-12DRVR uses the DRV (WSON-6) package and shares identical pinout (OUT1, IN, OUT2, EN2, GND, EN1) with all TPS718xx-xxDRVR variants. Voltage combinations differ per part number (e.g., TPS71818-33DRVR = 1.8V/3.3V), but mechanical and electrical pin compatibility is maintained across the DRV-packaged TPS718xx series.
TPS71825-12DRVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 2.5V, 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 160 µA
- Current - Supply (Max):
- 250 µA
- PSRR:
- 63dB ~ 44dB (100Hz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS71825-12DRVR FAQ
1.How can I place an order for TPS71825-12DRVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS71825-12DRVR 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 TPS71825-12DRVR reliable?
The price and inventory of TPS71825-12DRVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS71825-12DRVR is usually 5 days.
3.What payment methods are accepted for TPS71825-12DRVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS71825-12DRVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS71825-12DRVR?
TPS71825-12DRVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS71825-12DRVR 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 TPS71825-12DRVR?
For technical support, including TPS71825-12DRVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS71825-12DRVR requirements.
6.How does Aetrix verify that TPS71825-12DRVR is sourced from the original manufacturer or authorized distributors?
All TPS71825-12DRVR 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 TPS71825-12DRVR meets industry standards.
7.What is the process for return or replacement of TPS71825-12DRVR?
All TPS71825-12DRVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS71825-12DRVR, 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 TPS71825-12DRVR part is unused and in its original packaging.
Return procedure for TPS71825-12DRVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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