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Texas Instruments TLV70242PDSET
- Part No.:
- TLV70242PDSET
- Manufacturer:
- Texas Instruments
- Package:
- 6-WFDFN
- Datasheet:
-
TLV70242PDSET.pdf
- Description:
- IC REG LINEAR 4.2V 300MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,570
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Product details
Overview
TLV70242PDSET from Texas Instruments is a 4.2 V fixed-output, 300-mA low-dropout (LDO) linear regulator in a 1.5-mm × 1.5-mm WSON-6 package with active pulldown, 2% output accuracy, 35 μA quiescent current, and 68 dB PSRR at 1 kHz - designed for Li-ion–powered handheld devices requiring fast enable/disable control and stable low-noise supply.
For engineers reviewing the TLV70242PDSET datasheet, TLV70242PDSET pinout, TLV70242PDSET application, or TLV70242PDSET equivalent, this page delivers verified electrical specs, thermal behavior, WSON-6 terminal mapping, real-world load/line transient performance, and validated alternatives for battery-powered RF and portable systems.
Technical Context
The TLV70242PDSET uses a PMOS pass transistor to achieve ultra-low dropout (260 mV typical at 300 mA), enabling operation with minimal VIN–VOUT headroom. Its precision bandgap reference and error amplifier deliver ±2% DC accuracy across –40°C to +125°C junction temperature.
It integrates thermal shutdown (165°C trip), current limit (320–860 mA), undervoltage lockout (1.9 V), and an active pulldown circuit (120 Ω) unique to the TLV702P series - ensuring rapid output discharge during disable and robust fault protection without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 4.2 V - matches Li-ion full-charge voltage for direct battery regulation without feedback resistors. |
| Max output current | 300 mA - supports moderate-power RF ICs, sensors, and microcontrollers in compact portable designs. |
| Quiescent current | 35 μA - enables >1-year battery life in always-on IoT nodes with periodic wake-up cycles. |
| Dropout voltage | 260 mV @ 300 mA - allows regulation down to VIN = 4.46 V, critical for maintaining system operation as battery discharges. |
| PSRR | 68 dB @ 1 kHz - suppresses switching noise from adjacent DC/DC converters in mixed-signal PCB layouts. |
| Output noise | 48 μVRMS (100 Hz–100 kHz) - ensures clean supply for analog front-ends and ADC references. |
| Enable threshold | VEN(HI) = 0.9 V, VEN(LO) = 0.4 V - compatible with 1.8-V and 3.3-V GPIOs without level-shifting. |
| Shutdown current | 1 μA nominal - reduces standby power to negligible levels in sleep-mode applications. |
Pinout & Package
TLV70242PDSET is packaged in a thermally enhanced 6-pin WSON (DSE) package measuring 1.5 mm × 1.5 mm × 0.75 mm, with exposed thermal pad for improved heat dissipation in space-constrained layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Input voltage supply | Accepts 2 V to 5.5 V input; requires ≥0.1 μF ceramic capacitor to GND for stability and transient response. |
| GND (Pin 2) | Power ground reference | Common return path for IN, OUT, and EN; must connect directly to thermal pad and low-impedance ground plane. |
| EN (Pin 6) | Active-high enable control | Drives high (>0.9 V) to enable regulator; pulls low (<0.4 V) to enter shutdown with 1 μA IQ and active pulldown. |
| OUT (Pin 3) | Regulated output | Delivers stable 4.2 V; requires ≥0.1 μF effective capacitance (bias + temp derated) for loop stability. |
| NC (Pin 4) | No connection | Internally unconnected; may be tied to GND to improve thermal conduction from die to PCB. |
| NC (Pin 5) | No connection | Internally unconnected; electrically isolated - no routing or soldering required. |
Key Features
| Feature | Design Value |
|---|---|
| Active pulldown circuit | 120 Ω internal discharge path on OUT during shutdown - clears residual charge in <1 ms for fast system reset. |
| Ultra-low IQ | 35 μA operating current - minimizes battery drain in always-on sensor nodes and wearables. |
| Wide input range | 2 V to 5.5 V operation - supports single-cell Li-ion (2.7–4.2 V), USB (4.75–5.25 V), and multi-cell alkaline inputs. |
| Stable with 0.1 μF COUT | Validated stability using small-footprint, bias-derated ceramics - reduces BOM cost and board area vs. 1-μF solutions. |
| Integrated protection | Thermal shutdown (165°C), current limit (≥320 mA), and UVLO (1.9 V) - eliminates need for external fault management circuitry. |
| High PSRR at low headroom | 68 dB @ 1 kHz even with VIN–VOUT = 0.5 V - maintains signal integrity in noisy DC/DC–fed systems. |
Applications
| Li-Ion Battery Management | Bluetooth Low Energy Module Supply |
|---|---|
|
Use Scenario: Regulating output of a single-cell Li-ion battery (2.7–4.2 V) to power a fuel-gauge IC or charger controller requiring precise 4.2 V reference. IC Role / Device Role / Timing Role: Primary voltage regulation stage delivering stable 4.2 V with <2% error across temperature and load. Use Value: Eliminates need for external feedback divider while maintaining ±2% accuracy - simplifies layout and improves long-term battery calibration fidelity. |
Use Scenario: Powering a Bluetooth 5.0 SoC (e.g., CC2642R) during advertising and connection phases where burst current peaks reach 200 mA. IC Role / Device Role / Timing Role: Low-noise, fast-transient LDO supplying VDD_CORE and VDD_IO rails during RF transmit bursts. Use Value: 48 μVRMS noise and 68 dB PSRR prevent RF desense; 100 μs start-up time ensures timely wake-up from deep sleep. |
| Zigbee End-Device Node | WLAN PC Card Voltage Translation |
|
Use Scenario: Providing regulated 4.2 V to a Zigbee transceiver (e.g., JN5169) in a battery-powered smart sensor node operating at –40°C to +85°C. IC Role / Device Role / Timing Role: Main power rail regulator with integrated thermal and current protection for unattended field deployment. Use Value: 125°C max junction rating and thermal cycling resilience (145°C reset) ensure reliability in enclosed industrial enclosures. |
Use Scenario: Converting 5 V PCIe slot power to 4.2 V for legacy WLAN mini-PCIe modules requiring exact battery-equivalent voltage. IC Role / Device Role / Timing Role: Fixed-output LDO acting as voltage translator between host bus and RF subsystem. Use Value: 260 mV dropout enables full 4.2 V delivery even when PCIe rail sags to 4.46 V under load - avoids brownout resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLS850F0TESK | 500-mA output, 40 μA IQ, 4.2 V fixed, TO-252-3 package (6.6 mm × 7.6 mm) | Higher current capability but 3× larger footprint; lacks active pulldown and 0.1 μF stability support | Choose for higher-load applications where board space permits and fast discharge is not required. |
| MCP1703T-4202E/MB | 250-mA output, 4 μA IQ, 4.2 V fixed, SOT-23-5 package; no enable pin or thermal shutdown | Ultra-low IQ ideal for energy-harvesting, but no fault protection or digital control - requires external enable logic | Choose only for ultra-low-power, non-safety-critical applications where enable and protection are handled externally. |
Compared with TLS850F0TESK and MCP1703T-4202E/MB, TLV70242PDSET uniquely balances 300-mA capability, 35-μA IQ, WSON-6 compactness, active pulldown, and 0.1-μF stability - making it optimal for space-constrained, battery-fed RF modules needing integrated control and protection.
Availability
TLV70242PDSET is available at Aetrix Electronics and suitable for Li-ion battery management, Bluetooth module supply, Zigbee end-node power, and WLAN PC card voltage translation requiring stable component supply across automotive-grade temperature ranges and multi-year production cycles.
Supply support for TLV70242PDSET 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 signal chains.
The TLV702 series was developed specifically for ultra-low-power, battery-operated portable electronics - emphasizing minimal quiescent current, fast transient response, and robust integration in miniature packages like WSON-6.
FAQ
What is the maximum input voltage rating for TLV70242PDSET?
The absolute maximum input voltage for TLV70242PDSET is 6.0 V, as specified in the Absolute Maximum Ratings table. Operation above this voltage risks permanent damage. For reliable continuous use, the recommended maximum input is 5.5 V per the Recommended Operating Conditions - ensuring compatibility with USB 5 V and fully charged Li-ion sources while maintaining margin for ripple and transients.
Does TLV70242PDSET require an input capacitor?
While TLV70242PDSET does not require an input capacitor for stability, Texas Instruments recommends a 0.1–1 μF low-ESR ceramic capacitor between IN and GND. This improves line transient response, reduces input ripple coupling, and mitigates voltage excursions caused by source impedance - especially critical when the device is located >2 cm from the power source or driving fast-switching loads.
How does the active pulldown feature work in TLV70242PDSET?
The TLV70242PDSET includes an internal 120 Ω pulldown resistor between OUT and GND that activates automatically when EN is driven below 0.4 V. This discharges the output capacitor rapidly - typically clearing 4.2 V to <100 mV in under 1 ms with a 1-μF COUT. This feature eliminates hold-up voltage that could delay system reset or cause unintended logic states in downstream circuits.
Can TLV70242PDSET operate with a 0.1 μF output capacitor?
Yes - TLV70242PDSET is explicitly characterized and guaranteed stable with an effective output capacitance of ≥0.1 μF, including bias and temperature derating. This enables use of smaller, lower-cost X5R/X7R ceramics (e.g., 0.22 μF rated, derated to 0.12 μF at 4.2 V and 85°C), reducing PCB area versus traditional 1-μF solutions while maintaining phase margin >45°.
What thermal protection behavior does TLV70242PDSET exhibit?
TLV70242PDSET triggers thermal shutdown at approximately 165°C junction temperature and resets at ~145°C. During sustained overload, it cycles between shutdown and regulation - limiting average power dissipation and preventing permanent damage. For continuous operation, TI specifies a maximum junction temperature of 125°C; proper PCB copper area and thermal vias under the exposed pad are essential to maintain this limit at 300 mA load.
TLV70242PDSET 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:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 4.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.375V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 55 µA
- Current - Supply (Max):
- 370 µA
- PSRR:
- 68dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, 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)
TLV70242PDSET FAQ
1.How can I place an order for TLV70242PDSET through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV70242PDSET 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 TLV70242PDSET reliable?
The price and inventory of TLV70242PDSET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV70242PDSET is usually 5 days.
3.What payment methods are accepted for TLV70242PDSET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV70242PDSET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV70242PDSET?
TLV70242PDSET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV70242PDSET 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 TLV70242PDSET?
For technical support, including TLV70242PDSET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV70242PDSET requirements.
6.How does Aetrix verify that TLV70242PDSET is sourced from the original manufacturer or authorized distributors?
All TLV70242PDSET 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 TLV70242PDSET meets industry standards.
7.What is the process for return or replacement of TLV70242PDSET?
All TLV70242PDSET units undergo pre-shipment inspection (PSI). If there is an issue with TLV70242PDSET, 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 TLV70242PDSET part is unused and in its original packaging.
Return procedure for TLV70242PDSET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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