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Texas Instruments TPS71825-12DRVT
- Part No.:
- TPS71825-12DRVT
- Manufacturer:
- Texas Instruments
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS71825-12DRVT.pdf
- Description:
- IC REG LIN 2.5V/1.2V 200MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:600
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Product details
Overview
TPS71825-12DRVT 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 200mA, and maintains ±3% output accuracy over temperature, line, and load. Used in space-constrained portable systems requiring clean, sequenced power for RF and analog circuitry.
For engineers reviewing the TPS71825-12DRVT datasheet, TPS71825-12DRVT pinout, TPS71825-12DRVT application, or TPS71825-12DRVT equivalent, this page provides verified specifications, package layout guidance, dual-rail sequencing behavior, PSRR performance at 1kHz/1MHz, and validated alternative options for dual-LDO replacement in handheld and wireless designs.
Technical Context
The TPS71825-12DRVT integrates two independent PMOS-based LDOs sharing a common IN and GND, each with dedicated EN pins (EN1 for OUT1, EN2 for OUT2) enabling precise power sequencing. Its BiCMOS process delivers ultra-low 90µA total quiescent current with both regulators enabled and supports stable operation with ≥1µF ceramic output capacitors.
It features 70µVRMS output noise (scaled per VOUT), 65dB PSRR at 1kHz dropping to 45dB at 1MHz, and built-in protection including over-current, thermal shutdown (trip at +160°C, reset at +140°C), and undervoltage lockout (UVLO threshold 2.45V ±70mV). No active pulldown - distinct from TPS719xx family.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltages | 2.5V (OUT1), 1.2V (OUT2) - factory-programmed fixed outputs; no external feedback required. |
| Max output current per rail | 200mA - sufficient to power baseband processors, RF transceivers, or image sensors without derating at +85°C. |
| Dropout voltage | 230mV at 200mA - enables regulation from 2.73V input on 2.5V rail and 1.43V input on 1.2V rail. |
| Total quiescent current | 90µA (typical) with both LDOs enabled - critical for battery runtime in always-on subsystems. |
| PSRR @ 1kHz / 1MHz | 65dB / 45dB - suppresses switching noise from upstream DC/DC converters feeding sensitive analog/RF stages. |
| Output noise density | 70µVRMS/VOUT - translates to 175µVRMS on 2.5V rail and 84µVRMS on 1.2V rail (100Hz–100kHz). |
| Operating temperature | –40°C to +125°C junction - qualified for automotive infotainment and industrial edge nodes. |
Pinout & Package
TPS71825-12DRVT uses the DRV package: 2mm × 2mm WSON-6 (SON-6) with exposed thermal pad. Pin 1 is located at bottom-left corner (A1); thermal pad must be soldered to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 | Regulator 1 output | Delivers 2.5V; requires ≥1µF ceramic capacitor to GND for stability and transient response. |
| IN | Input supply | Common input for both LDOs; accepts 2.7V–6.5V; decoupling capacitor recommended near pin. |
| OUT2 | Regulator 2 output | Delivers 1.2V; requires ≥1µF ceramic capacitor to GND; separate ground path improves PSRR. |
| EN2 | Enable for OUT2 | Active-high logic; drives high (>1.25V) to enable 1.2V rail; pulls low (<0.4V) for shutdown (ISHDN ≤3µA). |
| GND | Ground reference | Common analog/digital ground; thermal pad must connect directly to PCB ground plane. |
| EN1 | Enable for OUT1 | Active-high logic; independent control of 2.5V rail; enables power sequencing (e.g., 2.5V before 1.2V). |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enables | EN1 and EN2 allow flexible power-up/down sequencing - e.g., enable 2.5V rail first for I/O before activating 1.2V core. |
| Low-noise regulation | 70µVRMS/VOUT noise ensures minimal interference with ADC references, PLL VCO supplies, or RF bias rails. |
| Stable with 1µF ceramics | Eliminates need for large tantalum or electrolytic capacitors - reduces board area and cost in compact layouts. |
| High PSRR at low headroom | 65dB @ 1kHz even with VIN–VOUT = 0.5V - maintains clean output when fed from tightly regulated intermediate rails. |
| Full protection suite | Integrated over-current limit (240–575mA), thermal shutdown (+160°C trip), and UVLO prevent damage during fault conditions. |
Applications
| Mobile Camera Modules | Wireless LAN Baseband |
|---|---|
|
Use Scenario: Dual-rail power for CMOS image sensor (2.5V I/O, 1.2V core) and ISP ASIC in smartphone rear camera. IC Role / Device Role / Timing Role: Provides independently sequenced, low-noise supplies; EN1 enables 2.5V I/O before EN2 activates 1.2V core to meet sensor startup timing. Use Value: Prevents sensor initialization faults and reduces image noise by suppressing supply ripple coupling into analog pixel array. |
Use Scenario: Powering WLAN SoC with separate 2.5V analog/RF and 1.2V digital core domains in portable hotspot devices. IC Role / Device Role / Timing Role: Delivers clean, isolated rails; high PSRR attenuates switching noise from shared buck converter feeding both LDO inputs. Use Value: Improves EVM and receiver sensitivity by lowering phase noise on VCO supply and reducing digital switching crosstalk. |
| Bluetooth Audio Headsets | Industrial Handheld Scanners |
|
Use Scenario: Supplying Bluetooth LE radio (2.5V) and DSP (1.2V) from single-cell Li-ion (3.0–4.2V) in ultra-low-power earbuds. IC Role / Device Role / Timing Role: Dual LDO replaces discrete regulators; 90µA quiescent current extends battery life in standby mode. Use Value: Enables >10-day shelf life between charges while maintaining fast wake-up via independent EN control. |
Use Scenario: Powering barcode scanner engine (2.5V laser driver, 1.2V microcontroller) in ruggedized handheld terminals operating at –25°C to +70°C. IC Role / Device Role / Timing Role: Regulates from wide-input industrial DC supply (5–24V via pre-regulator); ±3% accuracy ensures consistent laser output and decode reliability. Use Value: Eliminates need for external trimming or calibration across temperature, reducing BOM and test time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS71825-18DRVT | Same DRV package and 2.5V/1.8V output pair; higher second-rail voltage increases margin for 1.8V I/O interfaces. | Not suitable where 1.2V core rail is mandatory (e.g., ARM Cortex-M4F cores); requires redesign of downstream 1.2V loads. | Select only if system requires 1.8V instead of 1.2V for interface compatibility - no PCB change needed. |
| TPS71925-12DRVT | Includes active output pulldown on both rails; 180µs shutdown discharge vs. open-circuit decay in TPS71825-12DRVT. | Required in systems needing rapid rail discharge to meet safety or state-reset requirements (e.g., medical sensors). | Choose when fast VOUT discharge is critical; otherwise, TPS71825-12DRVT offers lower cost and identical regulation specs. |
Compared with TPS71825-12DRVT, TPS71825-18DRVT changes only the second output voltage (1.8V vs. 1.2V) with identical pinout and specs, while TPS71925-12DRVT adds active pulldown but shares same voltage set and package - making both viable alternatives depending on discharge or interface-voltage needs.
Availability
TPS71825-12DRVT is available at Aetrix Electronics and suitable for mobile camera modules, wireless LAN baseband subsystems, and Bluetooth audio headsets requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TPS71825-12DRVT 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 LDO design expertise and broad automotive/industrial qualification.
The TPS718xx family was engineered for portable and wireless applications demanding ultra-low quiescent current, dual-rail flexibility, and high PSRR in sub-2mm² packages - targeting camera, handset, and IoT edge node power architectures.
FAQ
What are the exact output voltages of the TPS71825-12DRVT?
The TPS71825-12DRVT delivers precisely 2.5V on OUT1 and 1.2V on OUT2. These values are factory-programmed using EEPROM and are not adjustable. Output accuracy is ±3% over full temperature, line, and load conditions, with typical deviation <±2.5mV at +25°C.
Does the TPS71825-12DRVT include active output pulldown during shutdown?
No, the TPS71825-12DRVT does not feature active pulldown. When EN1 or EN2 is pulled low, the corresponding output enters high-impedance state and discharges only through external load or parasitic paths. For controlled discharge, use TPS71925-12DRVT - the pin-compatible variant with integrated pulldown circuitry.
What is the minimum input voltage required for the TPS71825-12DRVT to regulate both outputs?
The minimum input voltage is determined by the higher dropout requirement: 2.5V rail needs VIN ≥ 2.5V + 0.23V = 2.73V; 1.2V rail needs VIN ≥ 1.2V + 0.23V = 1.43V. Thus, 2.73V is the effective minimum. The datasheet specifies absolute minimum VIN as 2.7V, aligning with the 2.5V rail's requirement.
Can the TPS71825-12DRVT operate with only 1µF output capacitance on each rail?
Yes - the TPS71825-12DRVT is explicitly designed to be stable with ≥1µF ceramic output capacitors (X5R/X7R) on both OUT1 and OUT2. Larger values improve transient response but are not required for stability. ESR must remain <1.0Ω across temperature.
Is the TPS71825-12DRVT RoHS compliant and lead-free?
Yes, the TPS71825-12DRVT is RoHS compliant and uses NiPdAu (NIPDAUAG) lead finish. It carries MSL Level-1 rating (unlimited floor life at ≤30°C/60% RH) and is qualified for peak reflow up to 260°C, meeting JEDEC J-STD-020 standards.
TPS71825-12DRVT 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)
TPS71825-12DRVT FAQ
1.How can I place an order for TPS71825-12DRVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS71825-12DRVT 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 TPS71825-12DRVT reliable?
The price and inventory of TPS71825-12DRVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS71825-12DRVT is usually 5 days.
3.What payment methods are accepted for TPS71825-12DRVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS71825-12DRVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS71825-12DRVT?
TPS71825-12DRVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS71825-12DRVT 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 TPS71825-12DRVT?
For technical support, including TPS71825-12DRVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS71825-12DRVT requirements.
6.How does Aetrix verify that TPS71825-12DRVT is sourced from the original manufacturer or authorized distributors?
All TPS71825-12DRVT 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 TPS71825-12DRVT meets industry standards.
7.What is the process for return or replacement of TPS71825-12DRVT?
All TPS71825-12DRVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS71825-12DRVT, 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 TPS71825-12DRVT part is unused and in its original packaging.
Return procedure for TPS71825-12DRVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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