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Texas Instruments TLV70228DSER
- Part No.:
- TLV70228DSER
- Manufacturer:
- Texas Instruments
- Package:
- 6-WFDFN
- Datasheet:
-
TLV70228DSER.pdf
- Description:
- IC REG LINEAR 2.8V 300MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,878
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Product details
Overview
TLV70228DSER from Texas Instruments is a 2.8 V fixed-output, 300-mA low-dropout (LDO) linear regulator in a 6-pin WSON package, featuring 2% output accuracy, 35 μA quiescent current, and 220 mV dropout at 300 mA - designed for Li-ion–powered handheld devices requiring stable low-noise bias under light-to-moderate load.
For engineers reviewing the TLV70228DSER datasheet, TLV70228DSER pinout, TLV70228DSER application, or TLV70228DSER equivalent, key selection criteria include dropout performance at full load, PSRR above 60 dB at 1 kHz, thermal shutdown behavior, and compatibility with 0.1 μF ceramic output capacitors in space-constrained layouts.
Technical Context
The TLV70228DSER uses a PMOS pass transistor to achieve low dropout voltage that scales with output current (220 mV at 300 mA, 75 mV at 100 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 active high enable logic (VEN(high) = 0.9 V), thermal shutdown (trip at 165°C, reset at 145°C), overcurrent protection (320–860 mA limit), and undervoltage lockout (UVLO = 1.9 V). The device remains stable with ≥0.1 μF effective output capacitance and achieves 68 dB PSRR at 1 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% over –40°C to +125°C; enables direct replacement of 2.8 V rails without external feedback. |
| Max Output Current | 300 mA continuous; supports moderate-power RF ICs and microcontrollers in portable systems. |
| Dropout Voltage | 220 mV at 300 mA; allows regulation from 3.02 V input - critical for single-cell Li-ion (2.8–4.2 V) applications. |
| Quiescent Current | 35 μA typical at no load; minimizes battery drain during standby in always-on sensor nodes. |
| PSRR | 68 dB at 1 kHz; suppresses switching noise from upstream DC/DC converters feeding sensitive analog circuits. |
| Output Capacitor | Stable with ≥0.1 μF ceramic (X5R/X7R); permits use of small 0402/0603 caps in ultra-compact PCBs. |
| Enable Threshold | EN high = ≥0.9 V; compatible with 1.8 V and 3.3 V GPIOs without level-shifting. |
Pinout & Package
TLV70228DSER is packaged in a 1.5 mm × 1.5 mm, 6-pin WSON (DSE) thermally enhanced package with wettable flanks, optimized for automated optical inspection and high-density routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input supply connection | Accepts 2 V to 5.5 V; requires local 0.1–1 μF ceramic decoupling to ground for transient immunity. |
| 2 (GND) | Power ground reference | Single-point ground tie for IN, OUT, and EN return paths; critical for PSRR and noise performance. |
| 3 (OUT) | Regulated output | Delivers 2.8 V ±2%; connects directly to load with 0.1–1 μF ceramic capacitor to GND for stability. |
| 4 (NC) | No-connect terminal | Internally unconnected; may be tied to GND to improve thermal dissipation in high-power layouts. |
| 5 (NC) | No-connect terminal | Internally unconnected; electrically isolated - no routing or soldering required. |
| 6 (EN) | Active-high enable control | Pulls device into <1 μA shutdown when <0.4 V; enables fast wake-up (<100 μs start-up time) from sleep states. |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout with PMOS pass element | Enables >93% efficiency at 300 mA from 3.02 V input - extends runtime in battery-critical designs. |
| Ultra-low IQ (35 μA) | Reduces no-load power loss to <105 nW per volt - essential for multi-year battery life in IoT endpoints. |
| High PSRR (68 dB @ 1 kHz) | Rejects ripple from noisy buck converters, preserving signal integrity in ADC reference and RF bias rails. |
| Thermal & current protection | Prevents catastrophic failure during short-circuit or overload; cycles safely between 165°C shutdown and 145°C restart. |
| 0.1 μF minimum COUT stability | Supports miniature 0402 ceramic capacitors (e.g., 0.1 μF, 6.3 V X5R), saving >0.3 mm² board area per rail. |
Applications
| Wireless Handset Power Rail | ZigBee® Network Node |
|---|---|
|
Use Scenario: Supplies 2.8 V bias to RF transceiver and baseband processor in compact smartphone submodules. IC Role / Device Role / Timing Role: Primary LDO for noise-sensitive 2.4 GHz transceiver IC requiring low output noise and high PSRR. Use Value: 48 μVRMS output noise and 68 dB PSRR prevent EVM degradation and maintain link margin under dynamic load. |
Use Scenario: Powers IEEE 802.15.4-compliant SoC and sensor interface in battery-operated industrial sensor node. IC Role / Device Role / Timing Role: Standby-mode LDO delivering regulated 2.8 V to MCU core and radio during periodic wake-up bursts. Use Value: 35 μA quiescent current and <100 μs start-up time minimize energy per wake cycle, extending 10-year battery life. |
| Bluetooth® Audio Earbud | Li-ion–Powered Wearable Display |
|
Use Scenario: Provides clean 2.8 V supply to Bluetooth LE audio codec and MEMS microphone preamp in earbud PCB. IC Role / Device Role / Timing Role: Low-noise post-regulator for analog signal chain, placed adjacent to audio ICs on shared ground plane. Use Value: Stability with 0.1 μF ceramic output cap allows placement within 1 mm of load - reduces layout-induced noise coupling. |
Use Scenario: Regulates 2.8 V for OLED display driver IC and touch controller in wrist-worn fitness tracker. IC Role / Device Role / Timing Role: Main system LDO supporting pulsed 200 mA peak loads during screen refresh while maintaining tight voltage tolerance. Use Value: 220 mV dropout at 300 mA ensures regulation down to 3.02 V input - maximizes usable capacity from aging Li-ion cell. |
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 rated, higher IQ (70 μA), TO-252-5 package (6.6 mm × 7.6 mm) | Designed for automotive body electronics; AEC-Q100 qualified, wider temp range (–40°C to +150°C) | Choose for automotive-grade reliability and higher current; avoid if board space or IQ budget is constrained. |
| MCP1700T-2802E/MB | 250 mA rated, 1.6 μA IQ, SOT-23-3 package (no EN pin) | Ultra-low-power variant with fixed EN tied internally; lacks enable control and thermal shutdown flag | Choose only for always-on, non-shutdown applications where <2 μA IQ outweighs missing protection features. |
Compared with TLS850F0TESK and MCP1700T-2802E/MB, TLV70228DSER delivers optimal balance of 300 mA capability, 35 μA IQ, 6-pin WSON footprint, and full protection suite - making it the preferred choice for consumer portable electronics where size, efficiency, and safety coexist.
Availability
TLV70228DSER is available at Aetrix Electronics and suitable for wireless handsets, ZigBee® networks, and Bluetooth® devices requiring stable component supply with guaranteed long-term manufacturability and consistent parametric performance.
Supply support for TLV70228DSER 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 broad portfolio coverage from design-in to production.
The TLV70228DSER belongs to TI's TLV702 family of low-IQ LDOs engineered specifically for battery-powered portable electronics - emphasizing ultra-low quiescent current, small footprint, and robust transient response in space- and energy-constrained systems.
FAQ
What is the maximum input voltage rating for TLV70228DSER?
The absolute maximum input voltage for TLV70228DSER is 6.0 V, but the recommended operating range is 2.0 V to 5.5 V. Exceeding 6.0 V risks permanent damage. Operation above 5.5 V is not supported and violates recommended conditions - always ensure VIN stays within 2 V to 5.5 V for reliable performance and longevity of TLV70228DSER.
Does TLV70228DSER require an input capacitor?
An input capacitor is not required for stability of TLV70228DSER, but TI recommends a 0.1–1 μF low-ESR ceramic capacitor between IN and GND to improve transient response and noise rejection. This is especially important when source impedance exceeds 2 Ω or when the device is distant from the power source - ensuring robust operation across all use cases of TLV70228DSER.
Can TLV70228DSER operate with a 0.1 μF output capacitor?
Yes, TLV70228DSER is explicitly designed to be stable with an effective output capacitance of ≥0.1 μF, including X5R/X7R ceramics. However, the "effective" value must account for bias and temperature derating - a 0.1 μF rated capacitor may fall below 0.1 μF under bias, so verify actual capacitance at operating voltage and temperature to guarantee stability of TLV70228DSER.
What is the shutdown current of TLV70228DSER?
When EN is driven ≤0.4 V, TLV70228DSER enters shutdown mode with ground pin current (ISHDN) of 1–2 μA over –40°C to +85°C, and ≤400 nA at TJ = 25°C and VIN = 2 V. This ultra-low shutdown current preserves battery charge during extended idle periods - a key enabler for long-life operation of TLV70228DSER in portable systems.
Is TLV70228DSER pin-compatible with other TLV702 variants?
TLV70228DSER shares identical 6-pin WSON (DSE) pinout with all TLV702x DSER variants (e.g., TLV70212DSER, TLV70233DSER), including IN, GND, OUT, two NC pins, and EN. Output voltage is the only functional difference - allowing drop-in replacement across the family when adjusting rail voltage, provided layout accommodates the same 1.5 mm × 1.5 mm footprint of TLV70228DSER.
TLV70228DSER 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):
- 2.8V
- 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:
- 6-WSON (1.5x1.5)
TLV70228DSER FAQ
1.How can I place an order for TLV70228DSER through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV70228DSER 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 TLV70228DSER reliable?
The price and inventory of TLV70228DSER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV70228DSER is usually 5 days.
3.What payment methods are accepted for TLV70228DSER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV70228DSER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV70228DSER?
TLV70228DSER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV70228DSER 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 TLV70228DSER?
For technical support, including TLV70228DSER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV70228DSER requirements.
6.How does Aetrix verify that TLV70228DSER is sourced from the original manufacturer or authorized distributors?
All TLV70228DSER 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 TLV70228DSER meets industry standards.
7.What is the process for return or replacement of TLV70228DSER?
All TLV70228DSER units undergo pre-shipment inspection (PSI). If there is an issue with TLV70228DSER, 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 TLV70228DSER part is unused and in its original packaging.
Return procedure for TLV70228DSER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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