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Texas Instruments TLV70734DQNT
- Part No.:
- TLV70734DQNT
- Manufacturer:
- Texas Instruments
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
TLV70734DQNT.pdf
- Description:
- IC REG LINEAR 3.4V 200MA 4X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:1,250
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Product details
Overview
TLV70734DQNT from Texas Instruments is a 200-mA, low-quiescent-current (25 µA), low-noise LDO regulator with 3.4 V fixed output voltage, 0.5% DC accuracy, and 70 dB PSRR at 100 Hz - designed for power-sensitive portable electronics such as smartphones, wearables, and WLAN add-on cards.
For engineers reviewing the TLV70734DQNT datasheet, TLV70734DQNT pinout, TLV70734DQNT application, or TLV70734DQNT equivalent, key selection criteria include dropout voltage (220 mV @ 150 mA), thermal shutdown/overcurrent protection, stability with ≥0.1 µF output capacitance, and compatibility with low-voltage GPIO enable logic (VIH = 0.9 V).
Technical Context
The TLV70734DQNT employs a PMOS pass transistor architecture enabling ultra-low dropout and high PSRR across 100 Hz–1 MHz. Its internal bandgap reference and error amplifier deliver 0.5% output accuracy over –40°C to +125°C junction temperature, with load regulation of ≤20 mV from 0–150 mA.
It integrates active-high enable logic (VIH = 0.9 V, VIL = 0.4 V), thermal shutdown, and current limiting (240–450 mA). Unlike the TLV707P variant, TLV70734DQNT lacks an internal pulldown resistor - confirmed by absence of RPULLDOWN specification and TLV707P-specific block diagram references in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.4 V ±0.5% - ensures stable rail for 3.3-V logic interfaces without external feedback. |
| Max Output Current | 200 mA - supports moderate-power RF ICs, sensors, and microcontrollers in space-constrained designs. |
| Quiescent Current | 25 µA - enables >1-year battery life in always-on wearable or IoT sensor nodes. |
| PSRR | 70 dB at 100 Hz, 50 dB at 1 MHz - suppresses switching noise from adjacent DC/DC converters. |
| Dropout Voltage | 220 mV @ 150 mA (3.4 V output) - allows operation from single-cell Li-ion (3.0 V min) with margin. |
| Stability Capacitance | ≥0.1 µF ceramic - permits use of small, low-cost X5R/X7R capacitors in 0201/0402 packages. |
| Enable Threshold | VIH = 0.9 V, VIL = 0.4 V - compatible with 1.2-V and 1.8-V GPIOs without level-shifting. |
Pinout & Package
TLV70734DQNT uses the DQN (X2SON-4) package: 1.0 mm × 1.0 mm, 4-pin, bottom-exposed thermal pad. Pin 1 (OUT) and Pin 2 (GND) are on one side; Pin 3 (EN) and Pin 4 (IN) on the opposite side. Thermal pad must be soldered for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Regulated output voltage node | Delivers stable 3.4 V; requires ≥0.1 µF ceramic capacitor to GND for stability and transient response. |
| GND (Pin 2) | Power ground reference | Return path for input/output currents and internal circuitry; connects to thermal pad for heat dissipation. |
| EN (Pin 3) | Active-high enable control | Drives >0.9 V to enable regulator; <0.4 V forces shutdown (1 µA IQ); no internal pulldown (non-P variant). |
| IN (Pin 4) | Unregulated input supply | Accepts 2.0–5.5 V; requires local 1-µF ceramic bypass capacitor to GND near pin for transient immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise regulation | 45 µVRMS (100 Hz–100 kHz) - minimizes phase noise in RF receivers and clock buffers. |
| Ultra-small footprint | 1.0 mm × 1.0 mm DQN package - saves PCB area in compact mobile and wearable PCBs. |
| Wide input range | 2.0 V to 5.5 V operation - supports single-cell Li-ion, Li-poly, or dual-cell alkaline inputs. |
| Robust protection | Thermal shutdown + overcurrent limit (240–450 mA) - prevents damage during short-circuit or overload. |
| No-load regulation | Maintains 0.5% accuracy with zero output load - critical for standby power domains and sleep-mode circuits. |
Applications
| Smartphone Baseband Power | Wearable Sensor Hub |
|---|---|
Use Scenario: Powers baseband processor I/O and memory interface rails in LTE/5G handsets where board space and battery life are constrained. IC Role / Device Role / Timing Role: Primary 3.4-V LDO delivering clean, low-noise supply to high-speed digital blocks with fast load transients. Use Value: 25 µA quiescent current extends standby time; 70 dB PSRR isolates sensitive analog sections from noisy PMIC switching noise. |
Use Scenario: Supplies 3.4-V rail to MEMS accelerometers, gyroscopes, and BLE SoCs in fitness trackers and smartwatches. IC Role / Device Role / Timing Role: Low-IQ post-regulator stepping down from main buck converter output to meet ultra-low-power sensor requirements. Use Value: Stability with 0.1 µF output cap enables 0201-size ceramics, reducing BOM cost and PCB footprint by >30% vs. traditional 1-µF solutions. |
| WLAN PC Card Power | Set-Top Box USB Peripheral Rail |
Use Scenario: Provides regulated 3.4-V supply to 2.4/5-GHz WLAN modules on mini-PCIe add-in cards in laptops and docking stations. IC Role / Device Role / Timing Role: Local point-of-load regulator decoupling RF section from shared system 3.3-V bus with high-frequency ripple. Use Value: 50 dB PSRR at 1 MHz attenuates switching noise from nearby DC/DC converters, preventing WLAN packet loss and EVM degradation. |
Use Scenario: Generates dedicated 3.4-V rail for USB-connected peripherals (e.g., IR blasters, HDMI CEC controllers) in consumer STBs. IC Role / Device Role / Timing Role: Isolated LDO ensuring stable voltage despite dynamic USB load changes and shared 3.3-V system rail fluctuations. Use Value: 200-mA capability and 20-mV load regulation support burst-mode peripheral operation without brownout or reset events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC70734DQNT | Same 3.4 V output, but 35 µA IQ (vs. 25 µA) and 65 dB PSRR @ 100 Hz (vs. 70 dB); no thermal shutdown. | Lacks safety-critical thermal protection - unsuitable for enclosed or thermally constrained enclosures. | Select only if lower cost outweighs missing thermal shutdown and higher IQ in non-safety-critical, low-ambient-temp environments. |
| TPS7A0534PDQNR | 3.4 V output, 25 µA IQ, but 150-mA max output (vs. 200 mA); 60 dB PSRR @ 100 Hz; requires ≥1 µF output cap. | Lower current rating and stricter capacitance requirement limit use in high-transient or high-load scenarios. | Prefer when footprint compatibility is secondary and design prioritizes TI's newer TPS7A05 family qualification (AEC-Q100 Grade 2). |
Compared with TLC70734DQNT and TPS7A0534PDQNR, TLV70734DQNT uniquely balances 200-mA capability, 25-µA IQ, 70-dB PSRR, thermal protection, and 0.1-µF stability - making it optimal for portable RF systems demanding both efficiency and robustness.
Availability
TLV70734DQNT is available at Aetrix Electronics and suitable for smartphone baseband power, wearable sensor hubs, and WLAN PC card applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TLV70734DQNT 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 needing ultra-low IQ, small size, and high PSRR - targeting smartphones, wearables, and wireless connectivity modules where every microamp and square millimeter matters.
FAQ
What is the maximum input voltage rating for TLV70734DQNT?
The absolute maximum input voltage for TLV70734DQNT is 6.0 V, per the Absolute Maximum Ratings table. However, the recommended operating range is 2.0 V to 5.5 V. Operating above 5.5 V risks permanent damage and violates functional specifications - always maintain VIN ≤ 5.5 V in normal operation. TLV70734DQNT includes internal protection, but sustained overvoltage is not supported.
Does TLV70734DQNT include an internal pulldown resistor on the OUT pin?
No, TLV70734DQNT does not include an internal pulldown resistor. That feature is exclusive to the TLV707P variant (e.g., TLV70734P), which specifies RPULLDOWN = 120 Ω in shutdown. The TLV70734DQNT datasheet omits this parameter and references only the standard TLV707 block diagram - confirming it lacks active pulldown. External discharge circuitry is required if fast output discharge is needed.
What output capacitor value is required for stable operation of TLV70734DQNT?
TLV70734DQNT is stable with an effective output capacitance of ≥0.1 µF - meaning the actual capacitance under bias and temperature conditions must meet or exceed this value. A 0.1 µF X5R/X7R ceramic capacitor is sufficient; larger values (e.g., 1 µF) improve transient response but are not required. Avoid tantalum or aluminum electrolytics due to ESR sensitivity.
Can TLV70734DQNT operate with zero load current while maintaining regulation?
Yes, TLV70734DQNT maintains 0.5% output voltage accuracy even with zero load current - explicitly stated in the datasheet description and verified in Electrical Characteristics (DC output accuracy spec applies down to 0 mA). This makes TLV70734DQNT suitable for always-on power domains that may enter deep sleep with no downstream current draw.
What is the thermal resistance (RθJA) of TLV70734DQNT in its DQN package?
The junction-to-ambient thermal resistance (RθJA) for TLV70734DQNT in the DQN (X2SON-4) package is 208.1°C/W, as specified in Section 6.4 Thermal Information. This value assumes standard JEDEC 2-layer board layout; actual thermal performance improves significantly with proper thermal pad soldering and copper pour on PCB layers.
TLV70734DQNT 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):
- 3.4V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.25V @ 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)
TLV70734DQNT FAQ
1.How can I place an order for TLV70734DQNT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV70734DQNT 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 TLV70734DQNT reliable?
The price and inventory of TLV70734DQNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV70734DQNT is usually 5 days.
3.What payment methods are accepted for TLV70734DQNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV70734DQNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV70734DQNT?
TLV70734DQNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV70734DQNT 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 TLV70734DQNT?
For technical support, including TLV70734DQNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV70734DQNT requirements.
6.How does Aetrix verify that TLV70734DQNT is sourced from the original manufacturer or authorized distributors?
All TLV70734DQNT 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 TLV70734DQNT meets industry standards.
7.What is the process for return or replacement of TLV70734DQNT?
All TLV70734DQNT units undergo pre-shipment inspection (PSI). If there is an issue with TLV70734DQNT, 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 TLV70734DQNT part is unused and in its original packaging.
Return procedure for TLV70734DQNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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