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Silicon Labs TS3310ITD1022T
- Part No.:
- TS3310ITD1022T
- Manufacturer:
- Silicon Labs
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
TS3310ITD1022T.pdf
- Description:
- IC REG BOOST ADJ 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,066
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Product details
Overview
TS3310ITD1022T from Silicon Labs is a true 150 nA quiescent current, pin-selectable 1.8–5 V output boost converter in a 2×2 mm TDFN-10 package. It features dual outputs - a regulated always-on STORE rail and an isolated switched OUT load switch - and operates down to 0.9 V input with UVLO hysteresis of 20 mV. It delivers up to 35 mA from STORE at 1.2×VIN and supports burst-mode loads in coin-cell-powered wireless sensors.
For engineers reviewing the TS3310ITD1022T datasheet, TS3310ITD1022T pinout, TS3310ITD1022T application, or TS3310ITD1022T equivalent, key selection criteria include its 150 nA no-load IQ, 10-pin TDFN thermal performance, selectable 8-output-voltage configuration via S0–S2, and integrated load-switch isolation for leakage-sensitive micro-power systems.
Technical Context
The TS3310ITD1022T implements Discontinuous Conduction Mode (DCM) boost regulation with ON-time inversely proportional to VIN (tON = 2.2 µs/VIN), enabling precise input current limiting via inductor selection. Its internal NMOS/PMOS switching architecture eliminates need for external Schottky diode while maintaining 92% peak efficiency.
Regulation is managed by a comparator-driven control block that initiates switching only when STORE voltage drops below 97% of programmed VPROG, with VGOOD open-drain flag asserting high-impedance state once STORE exceeds 90% of target. Startup provides 5% of max STORE current before full load engagement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Quiescent Current | 150 nA typical active-mode no-load IQ - enables >10-year coin-cell life in intermittent-sensing applications |
| Input Voltage Range | 0.9 V to 5.0 V - supports single alkaline, Li-ion, or energy-harvesting sources without pre-regulation |
| Output Voltage Options | 1.8 V, 2.1 V, 2.5 V, 2.85 V, 3.0 V, 3.3 V, 4.1 V, 5.0 V - selected via logic strapping of S0–S2 pins |
| UVLO Threshold | 0.9 V with 20 mV hysteresis - prevents battery collapse during high-impedance discharge phases |
| Max STORE Output Current | 35 mA at 1.2×VIN - scalable with inductor value and efficiency (up to 92%) |
| Package | 10-pin 2 mm × 2 mm TDFN with exposed paddle - optimized for low thermal resistance in space-constrained PCBs |
| Operating Temperature | –40 °C to +85 °C - fully specified for industrial and wearable environmental conditions |
Pinout & Package
TS3310ITD1022T is housed in a thermally enhanced 10-pin 2×2 mm TDFN package with exposed back-side paddle (EPAD) connected to GND for improved heat dissipation and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT_ON | Logic input control | CMOS-compatible enable signal for isolated OUT load switch; low-leakage (5 nA) input |
| 2: IN | Power input | Main boost input node; accepts 0.9–5 V; connects directly to battery or harvester output |
| 3–5: S0, S1, S2 | Voltage programming inputs | Binary-coded logic inputs selecting one of eight STORE output voltages (1.8–5 V) |
| 6: VGOOD | Open-drain status flag | Asserts high-impedance when STORE ≥90% of target - used for system power-good sequencing |
| 7: GND | Analog ground reference | Primary return path; must be tied to EPAD and low-impedance analog ground plane |
| 8: LSW | Inductor switch node | Connects to boost inductor; carries discontinuous switching current; requires short, low-inductance trace |
| 9: STORE | Regulated output | Main boosted output rail; connects to storage capacitor (CSTORE); supplies always-on circuitry |
| 10: OUT | Switched output | Isolated load rail controlled by OUT_ON; disconnects burst loads to prevent leakage drain on CSTORE |
| EPAD | Thermal & electrical ground | Exposed paddle; must be soldered to solid GND copper area for thermal management and noise reduction |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 150 nA IQ enables multi-year operation from CR2032 or LR44 coin cells in sensor nodes |
| Dual-output architecture | Always-on STORE rail + isolated OUT switch prevents load leakage from depleting storage capacitance |
| No external Schottky diode required | Integrated PMOS synchronous rectifier reduces BOM count and improves light-load efficiency |
| Programmable output voltage | 8 factory-set STORE voltages (1.8–5 V) selected via 3-pin binary code - no external resistors needed |
| Discontinuous Conduction Mode | DCM operation with VIN-proportional tON ensures predictable peak current and input current limiting via inductor choice |
Applications
| Wireless Remote Sensors | ZigBee Radio Enabled Devices |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting data every 60 seconds using sub-GHz RF IC. IC Role / Device Role / Timing Role: TS3310ITD1022T powers RF transceiver's VDD and digital core from single 1.5 V alkaline cell, with OUT_ON enabling burst transmission. Use Value: 150 nA IQ extends CR2032 lifetime beyond 7 years; STORE maintains stable 3.3 V for MCU while OUT isolates RF IC leakage between transmissions. | Use Scenario: ZigBee coordinator module harvesting ambient light via amorphous silicon PV cell. IC Role / Device Role / Timing Role: TS3310ITD1022T boosts variable 0.9–2.5 V PV output to regulated 3.3 V STORE rail; OUT powers ZigBee SoC only during packet reception/transmission. Use Value: 0.9 V start-up enables operation under dim lighting; DCM mode adapts to low, intermittent input power without instability. |
| Personal Health-Monitoring Devices | RFID Tags |
Use Scenario: Wearable ECG patch sampling biopotentials every 5 seconds, with Bluetooth LE wake-up on anomaly detection. IC Role / Device Role / Timing Role: TS3310ITD1022T supplies 2.5 V to analog front-end and 3.3 V to BLE SoC; OUT_ON triggers BLE transmission only when required. Use Value: Dual-rail isolation cuts standby current to <200 nA; programmable 2.5 V STORE matches AFE ADC reference for optimal SNR. | Use Scenario: Passive UHF RFID tag with integrated sensor requiring periodic wake-up and measurement. IC Role / Device Role / Timing Role: TS3310ITD1022T converts harvested RF energy into stable 4.1 V STORE rail; OUT powers sensor interface only during read cycles. Use Value: 4.1 V STORE option matches common sensor supply requirements; 25-second max idle interval aligns with typical RFID interrogation timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61291DRVR | 1.8 µA IQ (12× higher), 0.7 V start-up, fixed 3.3 V output, no load switch | Lacks isolated OUT rail and programmable voltage; suited for simpler always-on rails | Select when ultra-low IQ is secondary to cost and fixed-output simplicity |
| MAX17222ELT+T | 300 nA IQ, 0.4 V start-up, 1.8–5 V adjustable via resistor divider, no load switch | Requires external feedback resistors; no integrated isolation switch for burst loads | Choose when wider VIN range and resistor-based tuning outweigh need for pin-strapped flexibility |
Compared with TPS61291DRVR and MAX17222ELT+T, TS3310ITD1022T uniquely combines 150 nA IQ, pin-selectable output, and integrated load-switch isolation - making it the only option supporting leakage-critical burst-mode architectures without external components.
Availability
TS3310ITD1022T is available at Aetrix Electronics and suitable for coin-cell-powered portable equipment, solar energy harvesting systems, and wireless remote sensors requiring stable component supply across long-lifecycle deployments.
Supply support for TS3310ITD1022T 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
Silicon Labs is a fabless semiconductor company specializing in low-power, mixed-signal ICs for IoT, timing, and connectivity applications.
The TS3310ITD1022T belongs to Silicon Labs' ultra-low-power boost converter family, designed specifically for energy-constrained wireless sensing and battery-free systems where nanowatt quiescent operation and intelligent load management are critical.
FAQ
What is the minimum input voltage required for TS3310ITD1022T to start regulation?
The TS3310ITD1022T has an Under-Voltage Lockout (UVLO) threshold of 0.9 V with 20 mV hysteresis. Regulation begins when the input voltage rises above 0.9 V, and the device remains enabled until VIN falls below 0.855 V. This allows reliable startup from weak or aging coin cells and energy harvesters with low open-circuit voltage.
How does the TS3310ITD1022T achieve its 150 nA quiescent current specification?
The TS3310ITD1022T achieves 150 nA IQ through a combination of ultra-low-power internal bias circuitry (120 nA average) and infrequent, precisely timed switching bursts - up to 25 seconds apart under no-load conditions. The control block disables switching entirely when STORE voltage remains within regulation window, minimizing dynamic current draw while maintaining output accuracy.
Can the TS3310ITD1022T drive a 100 mA load, and if so, how?
Yes - the TS3310ITD1022T can deliver short 100 mA bursts via its switched OUT rail when paired with a sufficiently large CSTORE capacitor (e.g., 220 µF) and appropriate inductor (e.g., 100 µH). The STORE rail itself supports up to 35 mA continuously; the OUT switch isolates the load during idle, preserving CSTORE charge and enabling high peak currents without violating average input current limits.
What is the function of the VGOOD pin on the TS3310ITD1022T, and how should it be used?
The VGOOD pin on TS3310ITD1022T is an open-drain output that transitions to high-impedance when the STORE voltage reaches ≥90% of its programmed target. It is intended for system-level power-good signaling - for example, enabling a microcontroller reset release or enabling downstream regulators only after stable STORE voltage is established. A pull-up resistor to STORE or another clean rail is required for proper logic-level interpretation.
Does TS3310ITD1022T require an external Schottky diode, and why or why not?
No, the TS3310ITD1022T does not require an external Schottky diode. It integrates both NMOS (high-side) and PMOS (synchronous rectifier) switches in its boost topology. The PMOS replaces the traditional diode, eliminating forward voltage drop and associated conduction losses - improving efficiency, especially at light loads, and reducing component count and board area.
TS3310ITD1022T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.9V
- Voltage - Input (Max):
- 3.6V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- 5V
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TDFN (2x2)
TS3310ITD1022T FAQ
1.How can I place an order for TS3310ITD1022T through Aetrix?
Please submit a Request for Quotation (RFQ) for TS3310ITD1022T 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 TS3310ITD1022T reliable?
The price and inventory of TS3310ITD1022T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS3310ITD1022T is usually 5 days.
3.What payment methods are accepted for TS3310ITD1022T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS3310ITD1022T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS3310ITD1022T?
TS3310ITD1022T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS3310ITD1022T 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 TS3310ITD1022T?
For technical support, including TS3310ITD1022T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS3310ITD1022T requirements.
6.How does Aetrix verify that TS3310ITD1022T is sourced from the original manufacturer or authorized distributors?
All TS3310ITD1022T 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 TS3310ITD1022T meets industry standards.
7.What is the process for return or replacement of TS3310ITD1022T?
All TS3310ITD1022T units undergo pre-shipment inspection (PSI). If there is an issue with TS3310ITD1022T, 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 TS3310ITD1022T part is unused and in its original packaging.
Return procedure for TS3310ITD1022T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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