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Texas Instruments TLV707185PDQNT
- Part No.:
- TLV707185PDQNT
- Manufacturer:
- Texas Instruments
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
TLV707185PDQNT.pdf
- Description:
- IC REG LINEAR 1.85V 200MA 4X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:3,372
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Product details
Overview
TLV707185PDQNT from Texas Instruments is a 200-mA, low-noise, low-quiescent-current (25 µA) fixed-output LDO regulator delivering 1.85 V with ±0.5% DC accuracy, 70 dB PSRR at 100 Hz, and stable operation with only 0.1 µF output capacitance. It serves as a power supply for noise-sensitive RF blocks in portable electronics such as smartphone baseband processors and wireless sensor nodes.
For engineers reviewing the TLV707185PDQNT datasheet, TLV707185PDQNT pinout, TLV707185PDQNT application, or TLV707185PDQNT equivalent, key selection criteria include dropout voltage at 150 mA (220–270 mV), active pulldown resistance (120 Ω), shutdown current (1 µA), thermal shutdown behavior, and compatibility with space-constrained 1-mm × 1-mm X2SON packaging.
Technical Context
The TLV707185PDQNT implements a PMOS pass transistor architecture enabling ultra-low dropout and reverse-voltage protection via an integrated body diode. Its enable threshold (VIH = 0.9 V, VIL = 0.4 V) supports direct interfacing with low-voltage GPIOs of modern SoCs.
Unlike the standard TLV707 variant, the TLV707P suffix denotes inclusion of an internal 120-Ω active pulldown circuit that discharges the output during shutdown - critical for fast power-state transitions in battery-powered systems requiring controlled rail collapse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.85 V ±0.5% - ensures stable core voltage for 1.8-V logic domains without external feedback components. |
| Max Output Current | 200 mA - sufficient to power single-core microcontrollers, RF transceivers, or sensor signal chains. |
| Quiescent Current | 25 µA - enables multi-year battery life in always-on wearable sensors and IoT endpoints. |
| PSRR @ 100 Hz | 70 dB - suppresses switching noise from adjacent DC/DC converters feeding the LDO input. |
| Dropout Voltage | 220–270 mV @ 150 mA - allows operation down to VIN = 2.07 V while maintaining regulation at 1.85 V. |
| Stability Capacitance | 0.1 µF min effective COUT - permits use of small-footprint, high-bias-derating ceramics (e.g., 0402 1-µF X5R). |
| Shutdown Current | 1 µA - reduces system standby power in sleep-mode applications like BLE beacons. |
Pinout & Package
TLV707185PDQNT uses the DQN (X2SON, 4-pin) package: 1.00 mm × 1.00 mm footprint with wettable flank leads and exposed thermal pad for enhanced thermal performance in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Regulated output | Delivers 1.85 V to load; requires ≥0.1 µF ceramic capacitor to GND for stability and transient response. |
| GND (Pin 2) | Ground reference | Common return path for IN, OUT, and EN; must be connected to low-impedance PCB ground plane. |
| EN (Pin 3) | Enable control | Active-high logic input; drives device ON above 0.9 V, OFF below 0.4 V; enables sequencing with host processor GPIOs. |
| IN (Pin 4) | Input supply | Accepts 2.0–5.5 V input; requires local 1-µF ceramic decoupling capacitor to minimize input impedance and improve PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise regulation | 45 µVRMS output noise (100 Hz–100 kHz) - preserves SNR in ADC reference supplies and RF synthesizer VCOs. |
| Fast start-up time | 100 µs to 98% of VOUT - supports rapid wake-up from deep-sleep states in real-time sensor hubs. |
| Thermal & overcurrent protection | Auto-recovery thermal shutdown + current limit (240–450 mA) - prevents damage during short-circuit or overload faults. |
| Active output pulldown | 120-Ω internal discharge path - eliminates need for external pull-down resistors in power-gated subsystems. |
| Wide input range | 2.0 V to 5.5 V operation - accommodates single-cell Li-ion (3.0–4.2 V), USB (5 V), or dual-cell alkaline inputs. |
Applications
| Smartphone Baseband Power | Wearable Sensor Hub |
|---|---|
Use Scenario: Powers ARM Cortex-M4 core and integrated ADC in mobile phone application processor sub-system. IC Role / Device Role / Timing Role: Primary 1.85-V core LDO supplying digital logic rails with tight DC accuracy and low noise. Use Value: Maintains ±0.5% output accuracy across –40°C to +85°C and 0–200 mA load, ensuring reliable CPU operation under thermal and load transients. | Use Scenario: Supplies ultra-low-power motion sensor fusion engine (accelerometer + gyroscope + MCU) in fitness tracker. IC Role / Device Role / Timing Role: Always-on LDO providing regulated 1.85 V with 25 µA IQ to extend coin-cell battery life beyond 12 months. Use Value: 1 µA shutdown current and 100 µs start-up enable instantaneous wake-from-sleep response to motion interrupts. |
| Wireless Audio Transceiver | Industrial Bluetooth Node |
Use Scenario: Powers 2.4-GHz BLE radio IC requiring clean, low-noise 1.85-V supply for RF front-end biasing. IC Role / Device Role / Timing Role: Noise-suppressing post-regulator placed after buck converter to isolate RF section from switching noise. Use Value: 70 dB PSRR at 100 Hz and 45 µVRMS broadband noise prevent degradation of receiver sensitivity and EVM. | Use Scenario: Delivers stable 1.85 V to industrial-grade BLE module operating in temperature-controlled factory gateways. IC Role / Device Role / Timing Role: High-reliability LDO with –40°C to +125°C junction rating and thermal shutdown for unattended deployments. Use Value: 120-Ω active pulldown ensures controlled rail collapse during firmware updates, preventing bus contention on shared I²C lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL720185PDQNR | Lower IQ (2.5 µA), same 1.85 V output, but no active pulldown; 150-mA max output. | Better suited for ultra-low-power always-on monitoring where pulldown is unnecessary. | Select when minimizing standby current is primary; avoid if fast rail discharge is required. |
| TPS7A05185PDQNR | Higher PSRR (80 dB @ 100 Hz), 200-mA output, no pulldown, 1.85 V fixed; larger 1.2-mm × 1.2-mm DQN package. | Preferred for RF-intensive designs needing superior ripple rejection, with relaxed board area constraints. | Choose when PSRR >70 dB is mandatory and 0.2-mm footprint increase is acceptable. |
Compared with TPL720185PDQNR and TPS7A05185PDQNR, TLV707185PDQNT uniquely balances 200-mA capability, 25-µA quiescent current, and integrated 120-Ω pulldown - making it optimal for portable systems requiring both efficiency and controlled power sequencing.
Availability
TLV707185PDQNT is available at Aetrix Electronics and suitable for smartphone baseband power, wearable sensor hubs, wireless audio transceivers, and industrial Bluetooth nodes requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TLV707185PDQNT 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 specializing in analog and embedded processing technologies, with leadership in power management ICs and precision analog solutions.
The TLV707 series was designed specifically for portable, battery-powered devices demanding ultra-low IQ, small footprint, and robust transient performance - targeting smartphones, wearables, and wireless edge nodes.
FAQ
What is the maximum input voltage rating for TLV707185PDQNT?
The absolute maximum input voltage for TLV707185PDQNT is 6.0 V, but the recommended operating range is 2.0 V to 5.5 V. Exceeding 5.5 V may trigger overvoltage stress and reduce reliability. The device maintains regulation across this full range while delivering 1.85 V at up to 200 mA, with dropout voltage increasing predictably per load and temperature conditions specified in the Electrical Characteristics table.
Does TLV707185PDQNT require an external pull-down resistor on the output?
No, TLV707185PDQNT does not require an external pull-down resistor because it integrates a 120-Ω active pulldown circuit on the OUT pin. This feature discharges the output rapidly during shutdown, eliminating bus contention and ensuring safe power-down sequencing in systems with shared I²C or SPI buses. The pulldown is exclusive to the TLV707P family, distinguishing TLV707185PDQNT from non-P variants.
Can TLV707185PDQNT operate with less than 1 µF output capacitance?
Yes, TLV707185PDQNT is explicitly characterized to remain stable with an effective output capacitance as low as 0.1 µF - significantly lower than conventional LDOs. This allows use of compact 0402-case ceramics (e.g., 0.47 µF X5R) even after bias and temperature derating. Stability is maintained across –40°C to +125°C and full load range, provided the effective capacitance meets the 0.1 µF minimum under actual operating conditions.
What is the typical startup time of TLV707185PDQNT?
The typical startup time for TLV707185PDQNT is 100 µs - defined as the time from EN rising above 0.9 V to VOUT reaching 98% of 1.85 V with a 1.0-µF output capacitor and 150-mA load. This fast turn-on supports low-latency wake-up in energy-harvesting and sensor-fusion applications where microsecond-level responsiveness is required after interrupt assertion.
How does the enable pin (EN) interface with low-voltage microcontrollers?
The EN pin of TLV707185PDQNT has a logic-high threshold of 0.9 V (VIH) and logic-low threshold of 0.4 V (VIL), enabling direct connection to 1.8-V GPIOs without level-shifting. This design allows seamless integration with modern ultra-low-power MCUs and application processors whose I/O banks operate at reduced voltages, simplifying power sequencing and reducing BOM count compared to legacy LDOs requiring ≥1.2-V enable thresholds.
TLV707185PDQNT 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):
- 1.85V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.36V @ 150mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 50 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB ~ 50dB (100Hz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-X2SON (1x1)
TLV707185PDQNT FAQ
1.How can I place an order for TLV707185PDQNT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV707185PDQNT 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 TLV707185PDQNT reliable?
The price and inventory of TLV707185PDQNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV707185PDQNT is usually 5 days.
3.What payment methods are accepted for TLV707185PDQNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV707185PDQNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV707185PDQNT?
TLV707185PDQNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV707185PDQNT 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 TLV707185PDQNT?
For technical support, including TLV707185PDQNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV707185PDQNT requirements.
6.How does Aetrix verify that TLV707185PDQNT is sourced from the original manufacturer or authorized distributors?
All TLV707185PDQNT 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 TLV707185PDQNT meets industry standards.
7.What is the process for return or replacement of TLV707185PDQNT?
All TLV707185PDQNT units undergo pre-shipment inspection (PSI). If there is an issue with TLV707185PDQNT, 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 TLV707185PDQNT part is unused and in its original packaging.
Return procedure for TLV707185PDQNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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