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Texas Instruments TLV74010PDQNR
- Part No.:
- TLV74010PDQNR
- Manufacturer:
- Texas Instruments
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
TLV74010PDQNR.pdf
- Description:
- IC REG LIN 1.2V 300MA 4X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:17,854
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Product details
Overview
TLV74010PDQNR from Texas Instruments is a 300mA, 1.0V fixed-output low-dropout (LDO) linear regulator in a 4-pin X2SON package, featuring foldback overcurrent protection, 1% output accuracy, 460mV dropout at full load, 50µA quiescent current, and active output discharge - designed for space-constrained, battery-powered portable media players and streaming devices.
For engineers reviewing the TLV74010PDQNR datasheet, TLV74010PDQNR pinout, TLV74010PDQNR application, or TLV74010PDQNR equivalent, key selection criteria include its 1mm × 1mm footprint, thermal performance in thin PCBs, foldback current limiting behavior under short-circuit conditions, and compatibility with 1µF ceramic output capacitors for stable regulation.
Technical Context
The TLV74010PDQNR implements a CMOS-based pass transistor with RDS(ON) ≈ 1.53Ω (calculated from 460mV/300mA), enabling low dropout while maintaining high PSRR (65dB at 1kHz). Its foldback current limit transitions from brickwall (360mA typical) to scaled-back mode below 0.95×VOUT (0.95V), reducing power dissipation during sustained shorts.
It integrates undervoltage lockout (UVLO rising threshold ≈1.3V), thermal shutdown (158°C trip, 140°C reset), and an active pulldown circuit (120Ω nominal) that discharges the output within microseconds when disabled - all operating across –40°C to +85°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 1.0V ±1% - ensures precise core supply for 1V logic domains without external feedback. |
| Max output current | 300mA - supports moderate-power peripherals like USB PHYs or small displays without thermal derating on standard 2-layer PCBs. |
| Dropout voltage | 460mV at 300mA - enables operation from 1.4V input (e.g., single LiFePO₄ cell or boosted 1.2V rail). |
| Quiescent current | 50µA - extends battery life in always-on standby modes of portable media players and STBs. |
| PSRR | 65dB at 1kHz - suppresses switching noise from adjacent DC/DC converters feeding shared input rails. |
| Enable threshold | VEN(HI) = 1.0V min - compatible with 1.2V/1.8V GPIOs and avoids false turn-on during brownout. |
| Active discharge | 120Ω pulldown - discharges 10µF output capacitance to <100mV in <1.2ms, meeting fast-power-down sequencing requirements. |
Pinout & Package
TLV74010PDQNR uses the DQN package: 4-pin, 1mm × 1mm X2SON with exposed thermal pad electrically tied to GND. Requires solder paste stencil optimization for thermal pad void control and IPC Class 2 reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT | Regulated output | Delivers stable 1.0V; requires ≥1µF ceramic capacitor placed adjacent to pin for stability and transient response. |
| 2: GND | Ground reference | Common return path; thermal pad must be connected to large internal GND plane for RθJB = 164.6°C/W performance. |
| 3: EN | Enable control | Active-high logic input; must not float - tie to IN if unused to ensure default enable; draws only 10nA. |
| 4: IN | Input supply | Accepts 1.4V–5.5V; requires ≥1µF ceramic capacitor near pin to minimize impedance and support inrush current control. |
Key Features
| Feature | Design Value |
|---|---|
| Foldback current limit | Transitions from 360mA brickwall to scaled-back mode below 0.95V, limiting power dissipation during shorts and preventing thermal runaway. |
| Active output discharge | 120Ω internal pulldown activated on disable - eliminates need for external bleed resistors in power-sequencing-critical applications. |
| Ultra-low IQ | 50µA ground current at zero load - reduces no-load power loss by >50% vs. legacy LDOs, critical for battery runtime. |
| High PSRR | 65dB at 1kHz and 45dB at 10kHz - maintains clean 1.0V supply despite ripple from buck converters sharing the same input source. |
| UVLO with hysteresis | Rising threshold ≈1.3V, falling threshold ≈1.25V - prevents oscillation during input ramp-up and ensures reliable startup from weak sources. |
Applications
| Portable Media Players | Streaming Media Players |
|---|---|
Use Scenario: Powering ARM Cortex-A53 application processor cores and LPDDR2 I/O banks in handheld video players. IC Role / Device Role / Timing Role: Primary 1.0V core LDO delivering regulated supply with fast load transient response to handle bursty CPU activity. Use Value: 460mV dropout enables direct use of single-cell LiFePO₄ (2.8–3.6V) without intermediate buck stage, reducing BOM count and board area. |
Use Scenario: Supplying HDMI transmitter PHY and audio DAC in compact set-top box dongles. IC Role / Device Role / Timing Role: Low-noise 1.0V bias rail ensuring jitter-free pixel clock generation and low THD+N audio output. Use Value: 65dB PSRR at 1kHz rejects switching noise from 2MHz DC/DC converter, preventing visible HDMI artifacts and audible DAC distortion. |
| Home Printers | STB and DVR |
Use Scenario: Powering microcontroller and sensor interface circuits in inkjet printer mainboards during low-power sleep states. IC Role / Device Role / Timing Role: Always-on 1.0V supply enabling rapid wake-from-sleep (<100µs startup time) for responsive user interaction. Use Value: 50µA quiescent current minimizes standby drain on backup coin-cell or supercapacitor, extending sleep duration beyond 72 hours. |
Use Scenario: Regulating 1.0V for QAM demodulator ASIC and MPEG decoder logic in cable/satellite receivers. IC Role / Device Role / Timing Role: Fault-tolerant power rail with foldback current limiting to survive ESD-induced latch-up events on RF front-end traces. Use Value: Foldback behavior limits short-circuit power dissipation to <150mW (at 3.3V input), preventing thermal damage during field-repair hot-plug scenarios. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC76010DBVR | Same 1.0V output, but 200mA max current and no active discharge; 60µA IQ; SOT-23-5 package. | Lacks foldback protection and output discharge - unsuitable for systems requiring fast power-down or short-circuit robustness. | Select only if board space allows larger SOT-23 and application tolerates higher dropout (650mV @200mA) and no discharge. |
| MCP1700T-1002E/MB | 1.0V fixed, 250mA, 1.6µA IQ, no enable or discharge; SOT-23-3 package. | No EN pin or active discharge; ultra-low IQ trades off transient response and current capability. | Prefer for ultra-long-life battery applications where enable control and fast shutdown are unnecessary. |
Compared with TLC76010DBVR and MCP1700T-1002E/MB, TLV74010PDQNR delivers higher current (300mA), lower dropout (460mV), integrated enable and active discharge, and foldback protection - making it optimal for compact, feature-rich portable designs requiring robust power management.
Availability
TLV74010PDQNR is available at Aetrix Electronics and suitable for portable media players, streaming media players, and home printers requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for TLV74010PDQNR 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 for consumer, industrial, and automotive markets.
The TLV740P series was engineered for ultra-compact, battery-sensitive applications demanding low IQ, fast transient response, and integrated protection - targeting portable electronics where board area and energy efficiency are critical constraints.
FAQ
What is the maximum input voltage rating for TLV74010PDQNR?
The absolute maximum input voltage for TLV74010PDQNR is 6.0V, but the recommended operating range is 1.4V to 5.5V. Exceeding 5.5V may trigger internal protection or degrade long-term reliability, even if within absolute ratings. Operation above 5.5V is not supported per TI's recommended conditions.
Does TLV74010PDQNR require an external pull-up resistor on the EN pin?
No - TLV74010PDQNR does not require an external pull-up on EN. The device has no internal pull-up; however, EN must not be left floating. If enable functionality is unused, TI specifies connecting EN directly to IN to guarantee reliable enable. External pull-ups are unnecessary and may interfere with controlled shutdown sequencing.
Can TLV74010PDQNR drive a 10µF ceramic output capacitor safely?
Yes - TLV74010PDQNR is stable with output capacitances from 1µF to 100µF, including 10µF X7R ceramics. The datasheet explicitly lists COUT = 1–100µF in Recommended Operating Conditions. Using 10µF improves load transient response without compromising stability, provided ESR remains low (<10mΩ).
What is the thermal performance difference between TLV74010PDQNR and the SOT-23 variant?
TLV74010PDQNR (X2SON, 4-pin) has RθJA = 224.3°C/W, while the SOT-23-5 variant (e.g., TLV74010PDBVR) has RθJA = 216°C/W - a minor 8.3°C/W difference. However, the X2SON's smaller footprint demands more careful PCB copper pour design; its RθJB = 164.6°C/W reflects stronger dependence on board-level thermal conduction versus the SOT-23's lower RθJB = 88.2°C/W.
How does the foldback current limit behave during a short-circuit event on TLV74010PDQNR?
During a short, TLV74010PDQNR initially limits current to ~360mA (brickwall), then folds back as VOUT drops below 0.95V. At hard short (VOUT ≈ 0V), it delivers ~40mA (ISC), reducing power dissipation to ~120mW (at 3V input). This prevents thermal runaway and allows safe recovery once fault clears - unlike fixed-current limiters that sustain full power.
TLV74010PDQNR 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):
- 1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.3V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Current Limit, 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-X2SON (1x1)
TLV74010PDQNR FAQ
1.How can I place an order for TLV74010PDQNR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV74010PDQNR 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 TLV74010PDQNR reliable?
The price and inventory of TLV74010PDQNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV74010PDQNR is usually 5 days.
3.What payment methods are accepted for TLV74010PDQNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV74010PDQNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV74010PDQNR?
TLV74010PDQNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV74010PDQNR 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 TLV74010PDQNR?
For technical support, including TLV74010PDQNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV74010PDQNR requirements.
6.How does Aetrix verify that TLV74010PDQNR is sourced from the original manufacturer or authorized distributors?
All TLV74010PDQNR 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 TLV74010PDQNR meets industry standards.
7.What is the process for return or replacement of TLV74010PDQNR?
All TLV74010PDQNR units undergo pre-shipment inspection (PSI). If there is an issue with TLV74010PDQNR, 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 TLV74010PDQNR part is unused and in its original packaging.
Return procedure for TLV74010PDQNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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