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Texas Instruments TLV7111518DDSET
- Part No.:
- TLV7111518DDSET
- Manufacturer:
- Texas Instruments
- Package:
- 6-WFDFN
- Datasheet:
-
TLV7111518DDSET.pdf
- Description:
- IC REG LIN 1.5V/1.8V 200MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:541
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Product details
Overview
TLV7111518DDSET from Texas Instruments is a dual-channel, low-quiescent-current LDO regulator with fixed 1.5V and 1.8V outputs, 200mA per channel, 150mV dropout at full load (VOUT = 2.8V), and ±2% output accuracy over –40°C to +125°C - used for independent power rail generation in portable RF subsystems.
For engineers reviewing the TLV7111518DDSET datasheet, TLV7111518DDSET pinout, TLV7111518DDSET application, or TLV7111518DDSET equivalent, key selection criteria include dual-rail sequencing capability, EN1/EN2 independent control, active pulldown on outputs, and 1.5mm × 1.5mm SON-6 footprint suitability for space-constrained handheld PCBs.
Technical Context
The TLV7111518DDSET integrates two PMOS-based LDO regulators sharing a common input but featuring dedicated VREF and independent enable pins (EN1, EN2), enabling asynchronous startup/shutdown of each rail. Each channel includes internal current limiting, thermal shutdown, and undervoltage lockout (UVLO) at 1.9V.
It features active pulldown circuitry on both outputs to rapidly discharge loads during disable, and pull-down resistors on EN1/EN2 (D-series variant) to ensure reliable disable when driving GPIOs are high-impedance - critical for processor-powered systems during boot.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltages | 1.5V (OUT1) and 1.8V (OUT2) - fixed, factory-programmed OTP outputs for dual-core SoC I/O and core logic rails |
| Max output current | 200mA per channel - supports simultaneous operation of two low-power peripherals without cross-load interference |
| Dropout voltage | 150mV at 200mA, VOUT = 2.8V - enables regulation from 3.3V supply down to 1.8V rail with minimal headroom loss |
| Quiescent current | 35µA per regulator (70µA total enabled) - extends battery life in always-on sensor or standby modes |
| PSRR | 70dB at 1kHz - suppresses switching noise from upstream DC/DC converters feeding RF front-end circuits |
| Accuracy | ±2% over –40°C to +125°C - ensures stable voltage margins for 1.5V/1.8V I/O interfaces across industrial temperature range |
| Enable threshold | VHI = 0.9V, VLO = 0.4V - compatible with 1.8V GPIO logic levels without level-shifting |
Pinout & Package
Package: 1.5mm × 1.5mm SON-6 (DSE), thermally enhanced, exposed pad (GND-connected), RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN1 | Enable input for regulator 1 (1.5V) | Active-high control with internal 6kΩ pull-down - prevents false turn-on during MCU reset or floating GPIO states |
| 2 - IN | Common input supply | Accepts 2.0V–5.5V input; requires ≥0.1µF ceramic capacitor to GND for stability and PSRR optimization |
| 3 - EN2 | Enable input for regulator 2 (1.8V) | Independent active-high control with internal 6kΩ pull-down - enables staggered power-up of digital and analog subsystems |
| 4 - GND | Ground reference and thermal pad | Must be soldered to PCB ground plane; serves as primary heat path and low-noise return for both regulators |
| 5 - OUT2 | Regulated 1.8V output | Delivers up to 200mA; requires 1µF ceramic capacitor to GND; features active pulldown to discharge load when disabled |
| 6 - OUT1 | Regulated 1.5V output | Delivers up to 200mA; requires 1µF ceramic capacitor to GND; independently regulated with dedicated bandgap reference |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable pins | EN1 and EN2 allow precise sequencing - e.g., power 1.5V core before 1.8V I/O, avoiding latch-up in mixed-voltage ASICs |
| Active output pulldown | Discharges OUT1/OUT2 to GND within microseconds upon disable - prevents floating states in downstream level translators or ADC references |
| Dedicated VREF per output | Eliminates crosstalk between channels; maintains ±2% accuracy on each rail even under mismatched load transients (e.g., burst TX on one rail) |
| Stable with 0.1µF effective COUT | Enables use of small-footprint X5R/X7R ceramics (e.g., 0402, 0603) - reduces board area vs. legacy LDOs requiring ≥1µF minimum |
| Thermal & current protection | Auto-recovery thermal shutdown (165°C trip, 145°C reset) and 220–550mA current limit prevent damage during short-circuit or overload events |
Applications
| Smartphone Baseband Power | Wearable Sensor Hub |
|---|---|
|
Use Scenario: Dual-rail power for application processor (1.5V core) and interface I/O (1.8V) in compact smartphone baseband modules. IC Role / Device Role / Timing Role: Primary dual-LDO providing isolated, sequenced, low-noise supplies - replaces discrete single-channel regulators and saves PCB real estate. Use Value: 1.5mm × 1.5mm footprint and independent EN control reduce layout complexity and enable faster boot timing alignment with PMIC sequencing requirements. |
Use Scenario: Powering ultra-low-power MCU (1.5V) and environmental sensor interface (1.8V) in coin-cell–powered wearables. IC Role / Device Role / Timing Role: Low-IQ dual regulator delivering stable rails during intermittent sensing bursts while minimizing quiescent drain. Use Value: 35µA per channel quiescent current extends battery life beyond 6 months; active pulldown prevents sensor bias drift during sleep mode transitions. |
| Industrial Handheld Terminal | Bluetooth LE Audio Module |
|
Use Scenario: Supplying 1.5V FPGA configuration logic and 1.8V transceiver interface in ruggedized handheld terminals operating from 3.6V Li-ion. IC Role / Device Role / Timing Role: Dual LDO with UVLO and thermal protection ensuring reliable operation across –40°C to +85°C industrial ambient range. Use Value: ±2% accuracy over temperature guarantees I/O margin compliance; 150mV dropout allows full 1.8V rail delivery even at end-of-battery (3.2V). |
Use Scenario: Generating clean 1.5V DSP core and 1.8V Bluetooth radio supplies in size-constrained earbud PCBs. IC Role / Device Role / Timing Role: Low-noise, high-PSRR dual regulator suppressing DC/DC ripple to preserve RF sensitivity and audio SNR. Use Value: 70dB PSRR at 1kHz and 48µVRMS output noise meet Bluetooth SIG RF coexistence requirements without additional filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL7407LADGQR | Single 7-channel low-side driver (not LDO); no voltage regulation, no dual-rail capability | Used for LED/relay control, not power conversion | Not functionally equivalent - unsuitable as replacement for TLV7111518DDSET |
| TPS7A2018PDBVR | Single-output 1.8V LDO (200mA), no second rail, no EN2, no pulldown, same SON-5 package | Only powers one rail; requires external sequencing for dual-rail systems | Select only if 1.5V rail is generated elsewhere; adds BOM and layout overhead vs. integrated dual solution |
Compared with TPS7A2018PDBVR, TLV7111518DDSET delivers two precision rails in one package with independent control and active discharge - reducing component count by one device and eliminating external sequencing logic. Unlike non-regulator alternatives like TPL7407LADGQR, it provides true voltage regulation essential for digital IC power integrity.
Availability
TLV7111518DDSET is available at Aetrix Electronics and suitable for smartphone baseband modules, wearable sensor hubs, industrial handheld terminals, Bluetooth LE audio modules, and other portable electronics requiring stable dual-rail component supply with tight thermal and footprint constraints.
Supply support for TLV7111518DDSET 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 and embedded processing technologies, with decades of expertise in power management IC design and high-volume manufacturing reliability.
The TLV711 series belongs to TI's ultra-low-IQ dual-LDO product line, engineered specifically for battery-powered portable devices where independent rail control, fast transient response, and minimal standby current are critical system-level requirements.
FAQ
What are the fixed output voltages of the TLV7111518DDSET?
The TLV7111518DDSET provides two factory-programmed fixed outputs: 1.5V on OUT1 and 1.8V on OUT2. These values are encoded in the part number suffix "1518" and verified in TI's SBVS142A datasheet. The device does not support adjustable output configurations.
Does the TLV7111518DDSET support independent enable control for each output?
Yes, the TLV7111518DDSET features two dedicated enable inputs: EN1 controls the 1.5V regulator (OUT1), and EN2 controls the 1.8V regulator (OUT2). Each has a defined high-enable threshold (≥0.9V) and low-disable threshold (≤0.4V), allowing fully independent power sequencing - a key feature confirmed in the Functional Block Diagram and PIN DESCRIPTIONS section of the datasheet.
What is the purpose of the pull-down resistors on EN1 and EN2 in the TLV7111518DDSET?
The "D" in the TLV7111518DDSET suffix indicates the D-series variant, which integrates ~6kΩ pull-down resistors on both EN1 and EN2 pins. As documented in the Features section, this ensures reliable disable when driving signals (e.g., MCU GPIOs) enter high-impedance or undefined states during power-up or reset - preventing unintended regulator activation.
Can the TLV7111518DDSET operate from a 3.0V input supply?
Yes, the TLV7111518DDSET supports input voltages from 2.0V to 5.5V. With 1.5V and 1.8V outputs, a 3.0V input provides sufficient headroom: dropout is 150mV at 200mA for VOUT = 2.8V, and lower for lower output voltages - ensuring stable regulation across full load and temperature range per Electrical Characteristics table.
Is an input capacitor required for stability with the TLV7111518DDSET?
An input capacitor is not strictly required for stability per the datasheet, but TI recommends ≥0.1µF ceramic (X5R/X7R) from IN to GND to improve PSRR and transient response. This is explicitly stated in the APPLICATION INFORMATION section and validated in typical characteristics plots showing improved noise and ripple rejection with proper decoupling.
TLV7111518DDSET Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.5V, 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -, -
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 110 µA
- Current - Supply (Max):
- -
- PSRR:
- 80dB ~ 50dB (10Hz ~ 100kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (1.5x1.5)
TLV7111518DDSET FAQ
1.How can I place an order for TLV7111518DDSET through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV7111518DDSET 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 TLV7111518DDSET reliable?
The price and inventory of TLV7111518DDSET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV7111518DDSET is usually 5 days.
3.What payment methods are accepted for TLV7111518DDSET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV7111518DDSET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV7111518DDSET?
TLV7111518DDSET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV7111518DDSET 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 TLV7111518DDSET?
For technical support, including TLV7111518DDSET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV7111518DDSET requirements.
6.How does Aetrix verify that TLV7111518DDSET is sourced from the original manufacturer or authorized distributors?
All TLV7111518DDSET 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 TLV7111518DDSET meets industry standards.
7.What is the process for return or replacement of TLV7111518DDSET?
All TLV7111518DDSET units undergo pre-shipment inspection (PSI). If there is an issue with TLV7111518DDSET, 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 TLV7111518DDSET part is unused and in its original packaging.
Return procedure for TLV7111518DDSET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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