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Silicon Labs TS3310ITD1022
- Part No.:
- TS3310ITD1022
- Manufacturer:
- Silicon Labs
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
TS3310ITD1022.pdf
- Description:
- IC REG BOOST ADJ 10TDFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TS3310ITD1022 from Silicon Labs is a true 150 nA quiescent current, pin-selectable 1.8–5 V output boost converter optimized for ultra-low-power energy harvesting and coin-cell applications. It features dual outputs (always-on STORE and switched OUT), 0.9 V UVLO, discontinuous conduction mode operation, and delivers up to 35 mA from STORE at 1.2×VIN. It serves as the primary power management IC in wireless remote sensors and personal health-monitoring devices.
For engineers reviewing the TS3310ITD1022 datasheet, TS3310ITD1022 pinout, TS3310ITD1022 application, or TS3310ITD1022 equivalent, key selection criteria include its 150 nA no-load IQ, 10-pin 2×2 mm TDFN package with exposed paddle, selectable output voltage via S0–S2 logic pins, and integrated load switch isolation for burst-mode loads.
Technical Context
The TS3310ITD1022 implements a discontinuous conduction mode (DCM) boost architecture where on-time is inversely proportional to VIN (tON = 2.2 µs/VIN), enabling precise input current limiting via inductor selection. Its regulation control block uses an internal comparator to initiate switching only when STORE voltage drops below 97% of programmed VPROG, minimizing idle current.
It integrates two independent output paths: STORE is continuously regulated and supplies storage capacitance, while OUT is a controlled load switch (RON = 1.1–1.65 Ω) enabled by the OUT_ON pin. The device employs separate NMOS (0.8–1.3 Ω) and PMOS (1.1 Ω) switches for efficient charge transfer and includes open-drain VGOOD monitoring at 90% of target STORE voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Quiescent Current (IQ) | 150 nA typical - actual battery current drawn during regulation, enabling >10-year coin-cell life in low-duty-cycle systems. |
| Input Voltage Range | 0.9 V to 5.0 V - supports single alkaline, Li-ion, or energy-harvested sources down to near-dead battery voltage. |
| 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 S0/S1/S2 logic pins; no external resistors required. |
| UVLO Threshold | 0.9 V with 20 mV hysteresis - prevents deep discharge by disabling switching when input falls below usable level. |
| Max STORE Output Current | 35 mA at 1.2×VIN - achievable with appropriate inductor (e.g., 10 µH) and 85% efficiency; scales with VIN and L value. |
| Operating Temperature | –40 °C to +85 °C - fully specified for industrial and wearable environments without derating. |
| Package | 10-pin 2 mm × 2 mm TDFN with exposed thermal paddle - enables compact layout and efficient heat dissipation in space-constrained PCBs. |
Pinout & Package
TS3310ITD1022 is housed in a thermally enhanced 10-pin 2×2 mm TDFN package with an exposed back-side paddle (EPAD) that must be connected to analog ground for optimal thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT_ON | Logic input control | CMOS-compatible enable signal for the switched OUT output; high = ON, low = isolation of burst load from STORE capacitor. |
| 2 - IN | Power input | Main boost input connection; accepts 0.9–5.0 V sources including coin cells and harvested energy transducers. |
| 3–5 - S0, S1, S2 | Voltage programming inputs | Three logic pins that set STORE output voltage from eight factory-trimmed options (1.8–5.0 V); no external components needed. |
| 6 - VGOOD | Open-drain status flag | Indicates STORE regulation status; high-impedance when STORE ≥ 90% of target voltage - used for system power-good sequencing. |
| 7 - GND | Analog ground reference | Primary ground return for regulation circuitry; must be tied to EPAD and low-noise analog ground plane. |
| 8 - LSW | Inductor switch node | Connection point for boost inductor; carries pulsed current; requires short, low-inductance trace to minimize EMI. |
| 9 - STORE | Regulated output | Main boosted output; connects to storage capacitor (CSTORE); supplies continuous low-power loads and buffers burst loads. |
| 10 - OUT | Switched output | Isolated load switch output; driven only when OUT_ON is high; prevents load leakage current from draining CSTORE during sleep. |
| EPAD | Thermal & electrical ground | Exposed copper paddle; must be soldered to solid GND plane for thermal management and noise reduction. |
Key Features
| Feature | Design Value |
|---|---|
| 150 nA active-mode IQ | Enables multi-year operation from CR2032 coin cells in sensor nodes with 10-second wake intervals and 200 µs active bursts. |
| Dual-output architecture (STORE + OUT) | Allows simultaneous continuous supply (STORE) and zero-leakage load isolation (OUT), eliminating standby current drain from burst-mode peripherals. |
| No external Schottky diode required | Integrated NMOS/PMOS synchronous rectification reduces BOM count and improves efficiency over diode-based boost topologies. |
| Discontinuous Conduction Mode (DCM) | Ensures predictable peak current and input current limiting via inductor selection - critical for high-impedance sources like solar cells or piezoelectrics. |
| 0.9 V UVLO with 20 mV hysteresis | Prevents brown-out oscillation and preserves battery capacity by cleanly disabling regulation before source collapse. |
Applications
| Wireless Remote Sensors | Personal Health-Monitoring Devices |
|---|---|
|
Use Scenario: A temperature/humidity sensor node powered by a single CR2032 coin cell, transmitting data every 30 seconds via BLE. IC Role / Device Role / Timing Role: TS3310ITD1022 provides regulated 3.3 V to MCU and radio during brief 150 µs transmit bursts, then enters ultra-low-IQ sleep. Use Value: Achieves >7-year battery life by isolating radio leakage current via OUT switch and maintaining 150 nA system IQ between transmissions. |
Use Scenario: Wearable ECG patch using mechanical energy harvesting to power analog front-end and Bluetooth LE MCU. IC Role / Device Role / Timing Role: TS3310ITD1022 boosts intermittent micro-watt harvested energy to stable 2.5 V STORE rail, then powers analog circuitry on demand via OUT. Use Value: Enables operation from sub-100 µW ambient sources due to 0.9 V start-up and DCM operation that avoids input voltage sag under load. |
| Solar-Powered IoT Nodes | ZigBee Radio Enabled Devices |
|
Use Scenario: Outdoor soil moisture sensor powered by miniature amorphous silicon solar cell (<100 µA max output). IC Role / Device Role / Timing Role: TS3310ITD1022 acts as the sole power manager, charging CSTORE during daylight and powering sensor+radio at night from stored energy. Use Value: Delivers 92% peak efficiency at 10 µA load and sustains regulation down to 0.9 V input - maximizing usable harvest window per day. |
Use Scenario: Smart home occupancy sensor using ZigBee mesh network, operating from two AA alkaline cells. IC Role / Device Role / Timing Role: TS3310ITD1022 generates 3.3 V for ZigBee SoC and PIR sensor, with OUT switch disconnecting SoC during motion-inactive periods. Use Value: Reduces average system current to <200 nA during 99.9% of uptime, extending battery life beyond 5 years without compromising responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61291DRVR | Higher IQ (300 nA), fixed 3.3 V output, no programmable voltage or isolated OUT switch. | Lacks burst-load isolation capability; requires external load switch for leakage-sensitive applications. | Choose when fixed 3.3 V suffices and board space permits discrete switch; not suitable for multi-voltage or ultra-low-leakage designs. |
| MAX17222ETA+ | Lower IQ (350 nA), 1.8–5.25 V output range, but no secondary load switch or VGOOD flag. | Cannot isolate burst loads from storage capacitor; lacks power-good signaling for system sequencing. | Acceptable for simpler boost needs where leakage isolation and status feedback are non-critical; inferior for energy harvesting. |
Compared with TPS61291DRVR and MAX17222ETA+, the TS3310ITD1022 uniquely combines 150 nA IQ, eight-pin-selectable output voltages, and a dedicated isolated load switch - making it the only option capable of sustaining >10-year coin-cell life while supporting dynamic, leakage-prone peripherals.
Availability
TS3310ITD1022 is available at Aetrix Electronics and suitable for wireless remote sensors, personal health-monitoring devices, and solar-powered IoT nodes requiring stable component supply across long production lifecycles.
Supply support for TS3310ITD1022 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 focused on low-power, mixed-signal ICs for IoT, timing, and connectivity applications.
The TS3310ITD1022 belongs to Silicon Labs' ultra-low-power boost converter family, engineered specifically for energy-constrained systems such as battery-free sensors and medical wearables where nanowatt-level quiescent current is mandatory.
FAQ
What is the minimum input voltage required for TS3310ITD1022 to start regulation?
The TS3310ITD1022 has a 0.9 V under-voltage lockout (UVLO) threshold with 20 mV hysteresis. Regulation begins once the input voltage rises above 0.9 V and remains active until VIN drops below 0.855 V. This allows reliable startup from nearly depleted coin cells and harvested energy sources with weak voltage profiles. The TS3310ITD1022 maintains this behavior across its full –40 °C to +85 °C operating range.
How does the TS3310ITD1022 achieve 150 nA quiescent current in active regulation mode?
The TS3310ITD1022 achieves 150 nA IQ through a combination of ultra-low-power internal circuitry (120 nA average) and infrequent, precisely timed switching cycles - up to 25 seconds apart under no-load conditions. Its DCM architecture and comparator-based regulation ensure switching occurs only when STORE voltage drifts below 97% of the programmed value. This behavior is intrinsic to the TS3310ITD1022 design and verified across production units.
Can the TS3310ITD1022 support multiple output voltages simultaneously?
No - the TS3310ITD1022 provides one regulated STORE output voltage (selectable from eight values via S0–S2) and one switched OUT output that mirrors STORE voltage when enabled. Both outputs share the same regulated rail; there is no independent second voltage domain. The TS3310ITD1022 does not support dual independent output voltages - its architecture prioritizes ultra-low IQ over multi-rail flexibility.
What is the function of the VGOOD pin on the TS3310ITD1022?
The VGOOD pin on the TS3310ITD1022 is an open-drain output that transitions to high-impedance when the STORE output reaches and maintains ≥90% of its target regulated voltage. It serves as a power-good indicator for system-level sequencing - for example, enabling a microcontroller reset release or ADC reference stabilization. VGOOD is not a precision monitor; its 5% hysteresis ensures noise immunity during light-load transients. This behavior is guaranteed for the TS3310ITD1022 across all output voltage selections.
Is the TS3310ITD1022 pin-compatible with other variants in the TS3310/12/14 family?
Yes - the TS3310ITD1022 shares identical pinout, package (10-pin 2×2 mm TDFN), and footprint with TS3312ITD1022 and TS3314ITD1022. All three variants use the same S0–S2 programming scheme and OUT_ON control logic. However, UVLO thresholds differ (0.9 V for TS3310ITD1022 vs. 2.0 V for TS3312ITD1022), and output voltage tables are variant-specific. Board-level substitution is electrically safe but requires validation of voltage selection and startup behavior.
TS3310ITD1022 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Strip
- 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)
TS3310ITD1022 FAQ
1.How can I place an order for TS3310ITD1022 through Aetrix?
Please submit a Request for Quotation (RFQ) for TS3310ITD1022 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 TS3310ITD1022 reliable?
The price and inventory of TS3310ITD1022 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS3310ITD1022 is usually 5 days.
3.What payment methods are accepted for TS3310ITD1022?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS3310ITD1022 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS3310ITD1022?
TS3310ITD1022 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS3310ITD1022 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 TS3310ITD1022?
For technical support, including TS3310ITD1022 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS3310ITD1022 requirements.
6.How does Aetrix verify that TS3310ITD1022 is sourced from the original manufacturer or authorized distributors?
All TS3310ITD1022 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 TS3310ITD1022 meets industry standards.
7.What is the process for return or replacement of TS3310ITD1022?
All TS3310ITD1022 units undergo pre-shipment inspection (PSI). If there is an issue with TS3310ITD1022, 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 TS3310ITD1022 part is unused and in its original packaging.
Return procedure for TS3310ITD1022:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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