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Texas Instruments TLV70235DBVR
- Part No.:
- TLV70235DBVR
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV70235DBVR.pdf
- Description:
- IC REG LINEAR 3.5V 300MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,055
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Product details
Overview
TLV70235DBVR from Texas Instruments is a 300-mA, low-quiescent-current, low-dropout linear regulator with fixed 3.5-V output, 2% DC accuracy, 35-μA quiescent current, 260-mV dropout at 300 mA, and 68-dB PSRR at 1 kHz - designed for Li-ion–powered handheld devices requiring stable, low-noise supply under light-load and transient conditions.
For engineers reviewing the TLV70235DBVR datasheet, TLV70235DBVR pinout, TLV70235DBVR application, or TLV70235DBVR equivalent, this page delivers verified package mapping (SOT-23-5), confirmed pin functions (IN/GND/EN/OUT), real-world stability data (0.1-μF ceramic output capacitor support), and validated alternatives for battery-powered RF and portable systems.
Technical Context
The TLV70235DBVR uses a PMOS pass transistor to achieve low dropout and maintains regulation down to 260 mV headroom at full 300-mA load. Its precision bandgap reference and error amplifier deliver ±2% output accuracy across –40°C to +125°C junction temperature.
It features active-high enable (VEN(high) = 0.9 V), thermal shutdown (165°C trip), overcurrent protection (320–860 mA limit), and undervoltage lockout (1.9 V). The device draws only 35 μA ground current at no load and drops to 400 nA in shutdown - enabling multi-day standby in always-on sensors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.5 V ±2% - ensures stable core voltage for 3.3-V microcontrollers without external feedback network. |
| Max Output Current | 300 mA - supports moderate-power peripherals like BLE radios or display drivers in compact handhelds. |
| Quiescent Current | 35 μA - enables >1-year battery life in low-duty-cycle IoT sensors powered by single Li-ion cells. |
| Dropout Voltage | 260 mV at 300 mA - allows operation down to VIN = 3.76 V, extending usable battery range below 4.0 V. |
| PSRR | 68 dB at 1 kHz - suppresses switching noise from adjacent DC/DC converters in mixed-signal PCB layouts. |
| Output Capacitor | Stable with ≥0.1 μF ceramic - permits use of 0402-size X5R/X7R caps, reducing BOM cost and board area. |
| Enable Threshold | VEN(high) = 0.9 V - compatible with 1.8-V GPIOs for precise power sequencing in multi-rail systems. |
Pinout & Package
TLV70235DBVR is packaged in a 5-pin SOT-23 (DBV) with 2.90 mm × 1.60 mm body size and exposed pad for thermal enhancement. Pin 1 = IN, Pin 2 = GND, Pin 3 = EN, Pin 4 = NC (no connection; may be grounded for thermal improvement), Pin 5 = OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Input supply connection | Accepts 2–5.5 V input; requires ≥0.1-μF ceramic capacitor to GND for stability and transient immunity. |
| GND (Pin 2) | Power ground reference | Serves as common return for IN, OUT, and EN; must connect directly to low-impedance ground plane. |
| EN (Pin 3) | Active-high enable control | Drives >0.9 V to enable regulator; <0.4 V forces shutdown with 400-nA quiescent current. |
| NC (Pin 4) | No internal connection | Not bonded; may be tied to GND to improve thermal dissipation without electrical impact. |
| OUT (Pin 5) | Regulated output node | Delivers 3.5 V ±2%; requires ≥0.1-μF ceramic cap to GND - ESR <200 mΩ recommended. |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout voltage | 260 mV at 300 mA enables extended battery runtime in 3.5-V systems powered by single-cell Li-ion (3.0–4.2 V). |
| Ultra-low IQ | 35 μA quiescent current minimizes standby loss - critical for coin-cell–powered wearables and remote sensors. |
| High PSRR | 68 dB at 1 kHz rejects ripple from noisy buck converters, preserving signal integrity in RF front-ends. |
| Small-output-capacitor stability | Validated with 0.1 μF ceramic output cap - reduces footprint, cost, and bias-voltage derating concerns vs. larger electrolytics. |
| Integrated protection | Thermal shutdown (165°C), current limit (≥320 mA), and UVLO (1.9 V) prevent damage during fault or brownout events. |
Applications
| Wireless Handset Power Rail | Zigbee® Sensor Node Supply |
|---|---|
Use Scenario: Powers baseband processor and RF transceiver in compact cellular handsets operating from single Li-ion cell (3.0–4.2 V). IC Role / Device Role / Timing Role: Primary LDO delivering clean 3.5-V supply to digital core and analog RF blocks. Use Value: 260-mV dropout extends usable battery voltage down to 3.76 V, adding ~12% runtime vs. higher-dropout regulators. |
Use Scenario: Supplies 3.5-V rail to Zigbee SoC and environmental sensor in battery-operated industrial monitoring nodes. IC Role / Device Role / Timing Role: Low-IQ LDO enabling multi-year operation on AA/AAA alkaline cells with periodic wake-up bursts. Use Value: 35-μA quiescent current limits standby drain to <1 μA per day - preserving >90% capacity over 2-year deployment. |
| Bluetooth® Audio Earbud Core | WLAN PC Card Bias Supply |
Use Scenario: Provides regulated 3.5-V supply to Bluetooth audio SoC and MEMS microphone in true-wireless stereo earbuds. IC Role / Device Role / Timing Role: Noise-sensitive LDO supporting high-fidelity audio path with minimal PSRR-induced distortion. Use Value: 68-dB PSRR at 1 kHz suppresses switching noise from charging ICs, preventing audible artifacts in audio output. |
Use Scenario: Generates 3.5-V bias for WLAN mini-PCIe card logic and RF front-end in laptop docking stations. IC Role / Device Role / Timing Role: Compact-area LDO replacing bulkier solutions to meet tight height constraints (<1.2 mm). Use Value: SOT-23-5 package (2.9 × 1.6 mm) fits within 3.5-mm edge clearance, enabling direct integration on PCIe card edge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLS850F33TJ | Automotive-grade AEC-Q100 qualified; 3.3-V output; higher 50-μA IQ; 350-mA max current. | Designed for automotive infotainment modules - includes watchdog timer and fail-safe diagnostics. | Select when functional safety (ASIL-B) and extended temperature (–40°C to +150°C) are required. |
| MCP1700T-3302E/MB | 3.3-V output; 1.6-μA IQ; 250-mA max current; 600-mV dropout at 250 mA. | Optimized for ultra-low-power sensor nodes - trades PSRR (55 dB @ 1 kHz) for nanoamp IQ. | Select when multi-year battery life dominates over noise rejection or high-current capability. |
Compared with TLS850F33TJ and MCP1700T-3302E/MB, TLV70235DBVR offers the best balance of low dropout (260 mV), moderate IQ (35 μA), and high PSRR (68 dB) for consumer portable electronics where cost, size, and battery runtime are co-optimized.
Availability
TLV70235DBVR is available at Aetrix Electronics and suitable for wireless handsets, Zigbee® sensor networks, and Bluetooth® audio devices requiring stable component supply with consistent parametric performance across production lots.
Supply support for TLV70235DBVR 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 designing analog ICs, embedded processors, and system solutions for industrial, automotive, and personal electronics markets.
The TLV702 series was developed specifically for power-constrained portable applications - delivering low IQ, small-footprint LDO regulation with robust transient response and minimal external components.
FAQ
What is the maximum input voltage rating for TLV70235DBVR?
The absolute maximum input voltage for TLV70235DBVR is 6.0 V, as specified in the Absolute Maximum Ratings table. Operation above this level risks permanent damage. For reliable long-term use, the recommended maximum input voltage is 5.5 V under all operating conditions - ensuring margin against transients and thermal stress while maintaining 2% output accuracy.
Does TLV70235DBVR require an input capacitor?
TLV70235DBVR does not require an input capacitor for stability, but TI strongly recommends a 0.1-μF to 1-μF low-ESR ceramic capacitor between IN and GND. This improves transient response, reduces input ripple coupling, and prevents oscillation when source impedance exceeds 2 Ω - especially critical in battery-fed designs with long PCB traces or shared power rails.
Can TLV70235DBVR operate with a 0.1-μF output capacitor?
Yes, TLV70235DBVR is explicitly characterized and guaranteed stable with an effective output capacitance of ≥0.1 μF, provided it is a ceramic type (X5R/X7R) with ESR <200 mΩ. This enables use of miniature 0402-case capacitors, reducing PCB area and cost - unlike older LDOs requiring ≥1-μF outputs.
What is the shutdown current of TLV70235DBVR?
TLV70235DBVR draws 400 nA typical shutdown current when EN ≤0.4 V and VIN = 2 V. Over the full temperature range (–40°C to +85°C) and input voltage (2–4.5 V), shutdown current remains ≤2 μA - making it suitable for applications requiring nanowatt-level sleep modes, such as wake-on-event sensor nodes.
Is TLV70235DBVR pin-compatible with other TLV702 variants?
Yes, all TLV702xxDBVR variants (e.g., TLV70212DBVR, TLV70233DBVR) share identical SOT-23-5 pinout: Pin 1 = IN, Pin 2 = GND, Pin 3 = EN, Pin 4 = NC, Pin 5 = OUT. This allows drop-in replacement across output voltages from 1.2 V to 4.8 V without PCB redesign - simplifying BOM consolidation and design reuse.
TLV70235DBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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):
- 3.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.38V @ 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:
- SOT-23-5
TLV70235DBVR FAQ
1.How can I place an order for TLV70235DBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV70235DBVR 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 TLV70235DBVR reliable?
The price and inventory of TLV70235DBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV70235DBVR is usually 5 days.
3.What payment methods are accepted for TLV70235DBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV70235DBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV70235DBVR?
TLV70235DBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV70235DBVR 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 TLV70235DBVR?
For technical support, including TLV70235DBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV70235DBVR requirements.
6.How does Aetrix verify that TLV70235DBVR is sourced from the original manufacturer or authorized distributors?
All TLV70235DBVR 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 TLV70235DBVR meets industry standards.
7.What is the process for return or replacement of TLV70235DBVR?
All TLV70235DBVR units undergo pre-shipment inspection (PSI). If there is an issue with TLV70235DBVR, 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 TLV70235DBVR part is unused and in its original packaging.
Return procedure for TLV70235DBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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