My Inquiry
My Account
Analog Devices Inc. LTC3106EFE#TRPBF
- Part No.:
- LTC3106EFE#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 20-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
LTC3106EFE#TRPBF.pdf
- Description:
- IC REG BUCK BOOST PROG 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,693
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC3106EFE#TRPBF from Analog Devices (formerly Linear Technology) is a 300mA ultralow-voltage buck-boost DC/DC converter with integrated PowerPath™ management, optimized for energy harvesting and dual-source systems. It starts up from as low as 0.85V on VIN (no backup) or 0.3V (with VSTORE), delivers regulated 1.8–5V output, draws only 1.6µA quiescent current, and supports seamless switchover between primary and backup power sources in wireless sensor networks.
For engineers reviewing the LTC3106EFE#TRPBF datasheet, LTC3106EFE#TRPBF pinout, LTC3106EFE#TRPBF application, or LTC3106EFE#TRPBF equivalent, key selection criteria include its sub-1V start-up capability, digitally programmable VOUT/VSTORE, 100mA/650mA selectable peak current limit, shelf-mode battery preservation, and compatibility with solar cells, thermoelectric generators, and primary/rechargeable backup batteries.
Technical Context
The LTC3106EFE#TRPBF implements a synchronous buck-boost topology with four internal MOSFETs (A1/A2/D1/D2/B/C) and automatic source arbitration logic that selects VBEST-the highest valid voltage among VIN, VSTORE, VAUX, and VOUT. Its dual-input architecture enables continuous operation during primary source interruption by switching to VSTORE without output dropout.
It integrates MPP control via external resistor programming on the MPP pin, accurate RUN pin threshold (600mV ±15mV) with 100mV hysteresis, and digital VOUT/VSTORE programming via OS1/OS2 and SS1/SS2 pins. The device operates across –40°C to 125°C and supports Burst Mode® for ultralow-noise light-load regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | VIN: 0.25V–5.1V; VSTORE: 2.1V–4.3V - enables direct connection to low-output-energy harvesters and standard backup batteries |
| Output Voltage Range | 1.8V/2.2V/3.3V/5.0V (digitally selectable) - eliminates external feedback resistors and simplifies BOM |
| Quiescent Current | 1.6µA at no load - preserves micropower integrity in multi-year battery-backed deployments |
| Start-Up Voltage | 0.85V (VIN only), 0.3V (VIN + VSTORE present) - supports startup from single-cell NiMH, thin-film batteries, or weak solar inputs |
| Peak Current Limit | 60mA/100mA (ILIMSEL = LO/HI) - configurable for ultra-low-power sensors or higher-current peripherals |
| Shelf Mode Leakage | 0.1–25nA on VSTORE - prevents backup battery self-discharge over years of storage |
| Power Good Threshold | –9% hysteresis, 3% window - provides reliable system reset signaling under dynamic load transients |
Pinout & Package
The LTC3106EFE#TRPBF is housed in a thermally enhanced 20-lead plastic TSSOP package (FE package), with exposed pad (Pin 21) soldered to PCB ground for optimal thermal performance (θJA = 48.6°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSTORE (Pin 1) | Secondary supply input | Backup power source connection; enables trickle charging when PRI = GND and ENVSTR = VSTORE |
| VCAP (Pin 2) | VSTORE isolation node | Decouples VSTORE from bulk capacitance; required for high-capacity secondary batteries to prevent leakage path |
| VOUT (Pin 3) | Regulated output | Programmable 1.8–5V rail; requires ≥22µF low-ESR capacitor for stability and ripple suppression |
| NC (Pin 4) | No connect | Internally unconnected; may be grounded or left floating per layout requirements |
| VAUX (Pin 5) | Auxiliary internal rail | Self-generated bias voltage for internal circuitry; requires ≥2.2µF ceramic decoupling |
| VCC (Pin 6) | Internal supply reference | Not for external loading; decoupled with 0.1µF ceramic capacitor for noise immunity |
| OS1/OS2 (Pins 7,8) | VOUT programming inputs | Digital select lines (GND/VCC) setting output voltage per Table 1 in datasheet |
| PGOOD (Pin 9) | Open-drain status indicator | Pulled low if VOUT drops >9% below setpoint; floats high in shutdown |
| MPP (Pin 10) | Maximum Power Point control | Resistor-programmed comparator input to optimize harvester power extraction |
| SS1/SS2 (Pins 11,12) | VSTORE voltage range select | Digital inputs defining VSTORE charge/discharge thresholds (OV/UV) when PRI = GND |
| PRI (Pin 13) | Primary battery enable | Tie to VCC to disable VSTORE charging (primary cell mode); tie to GND for rechargeable backup |
| ILIMSEL (Pin 14) | Peak current limit select | GND = 60mA/100mA limit; VCC = 530mA/725mA limit - adjusts inductor sizing and efficiency trade-offs |
| RUN (Pin 15) | Enable & UVLO control | Accurate 600mV enable threshold with 100mV hysteresis; supports external divider for custom turn-on voltage |
| ENVSTR (Pin 16) | VSTORE enable input | Tie to VSTORE to activate backup source; grounding disables VSTORE path entirely |
| GND (Pins 17,21) | Ground reference | Primary electrical and thermal return; exposed pad (Pin 21) must be soldered to PCB ground plane |
| VIN (Pin 18) | Main input supply | Primary harvester or battery input; requires ≥10µF bulk + 1µF ceramic decoupling |
| SW1/SW2 (Pins 19,20) | Buck-boost switch nodes | Connect external 10µH inductor between these pins; carry high-frequency switching currents |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow start-up voltage | 0.3V with VSTORE present - enables operation from micro-energy harvesters such as TEGs or indoor PV cells |
| Dual-input PowerPath™ | Automatic, glitch-free switchover between VIN and VSTORE - maintains uninterrupted system power during source failure |
| Digitally programmable outputs | VOUT and VSTORE voltages set via OS/SS pins - eliminates trimming resistors and reduces design iteration time |
| Zero-power Shelf Mode | VSTORE leakage <25nA - preserves multi-year shelf life of backup batteries in storage or dormant states |
| Configurable peak current limit | 60mA/100mA (low-power) or 530mA/725mA (higher-load) - matches inductor selection to application current demand |
| Integrated MPP control | External resistor sets harvester operating point - maximizes energy transfer from variable-output sources like solar panels |
Applications
| Wireless Sensor Node | Energy Harvesting System |
|---|---|
Use Scenario: Battery-less temperature/humidity sensor deployed in HVAC ducts powered by thermoelectric generator (TEG). IC Role / Device Role / Timing Role: Primary power manager converting µW-level TEG output into stable 3.3V rail while maintaining backup supercapacitor charge. Use Value: Enables 10+ year maintenance-free operation using ambient thermal gradients, with zero battery replacement. | Use Scenario: Indoor light-powered occupancy sensor using amorphous silicon solar cell and Li-ion backup. IC Role / Device Role / Timing Role: Dual-input buck-boost regulator harvesting from low-light PV while managing Li-ion charge/discharge cycles. Use Value: Delivers consistent 1.8V to MCU even under 50lux illumination, with seamless fallback to battery during darkness. |
| Building Automation Controller | Remote Industrial Monitor |
Use Scenario: Wireless CO₂ monitor in office ceiling grid, powered by miniature solar tile and coin-cell backup. IC Role / Device Role / Timing Role: Power supervisor enabling cold-start from 0.85V solar input and preserving backup battery during extended cloud cover. Use Value: Guarantees reliable wake-up and transmission every 5 minutes regardless of lighting conditions or seasonal variation. | Use Scenario: Corrosion-resistant pipeline monitor powered by piezoelectric vibration harvester and NiMH backup. IC Role / Device Role / Timing Role: Ultralow-quiescent regulator sustaining 1.6µA sleep current while supporting 300mA burst transmit pulses. Use Value: Extends field lifetime beyond 7 years in harsh environments where battery access is cost-prohibitive. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC3108EDE#TRPBF | Higher start-up voltage (20mV higher), lower max output current (200mA), no VSTORE charging | Optimized for ultra-low-power RF sensors only; lacks dual-source switchover and backup battery management | Select when only single-source harvesting is needed and backup autonomy is unnecessary |
| BQ25504RGTT | Integrated cold-start circuit, 300mA output, but no programmable VSTORE or shelf-mode leakage spec | Focused on solar/battery combos; lacks MPP flexibility and precise VSTORE OV/UV thresholds | Choose for simpler solar-charged IoT nodes where VSTORE voltage precision is non-critical |
Compared with LTC3108EDE#TRPBF and BQ25504RGTT, the LTC3106EFE#TRPBF uniquely combines sub-0.3V start-up with full dual-source arbitration, digitally programmable VSTORE thresholds, and verified <25nA shelf-mode leakage-making it the only option for long-life, multi-source, battery-preserving deployments.
Availability
LTC3106EFE#TRPBF is available at Aetrix Electronics and suitable for wireless sensor networks, building automation systems, and remote industrial monitors requiring stable component supply across extended product lifecycles and harsh environmental conditions.
Supply support for LTC3106EFE#TRPBF 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
Analog Devices acquired Linear Technology in 2017 and continues its legacy of high-performance analog, mixed-signal, and power management ICs for demanding industrial, automotive, and instrumentation applications.
The LTC3106 product line was designed specifically for energy-constrained, multi-source power systems-enabling reliable operation from ambient energy harvesters while preserving backup energy for mission-critical uptime.
FAQ
What is the minimum input voltage required to start up the LTC3106EFE#TRPBF?
The LTC3106EFE#TRPBF achieves cold-start from 0.85V on VIN alone, or as low as 0.3V when VSTORE is present and enabled via ENVSTR. This ultralow start-up capability is validated across –40°C to 125°C and enables direct interfacing with thermoelectric generators, indoor photovoltaics, and other micro-energy sources. Startup behavior is confirmed in the datasheet's Electrical Characteristics table under "VIN Start-Up Voltage".
How does the LTC3106EFE#TRPBF manage seamless switchover between VIN and VSTORE?
The LTC3106EFE#TRPBF uses internal VBEST arbitration logic to continuously monitor VIN, VSTORE, VAUX, and VOUT, selecting the highest valid source as the active input. When VIN drops below regulation, the device transitions to VSTORE without output dropout or reset-verified in Typical Performance Characteristic Figure 39 (VSTORE to VIN Switchover). No external circuitry or firmware is required for this PowerPath™ function.
Can the LTC3106EFE#TRPBF charge a rechargeable backup battery?
Yes-the LTC3106EFE#TRPBF supports trickle charging of VSTORE-connected secondary batteries when PRI is tied to GND and ENVSTR is connected to VSTORE. Charging voltage is digitally programmed via SS1/SS2 pins (e.g., 2.70–4.10V range), and shelf-mode leakage is guaranteed ≤25nA to preserve battery capacity during long-term storage. This functionality is detailed in Pin Functions section and Electrical Characteristics Table for VSTORE Operating Voltage.
What is the purpose of the MPP pin on the LTC3106EFE#TRPBF?
The MPP pin on the LTC3106EFE#TRPBF provides maximum power point control for energy harvesters. By connecting an external resistor from MPP to GND, users program the comparator threshold to match the harvester's IV curve-ensuring optimal power extraction from solar cells, TEGs, or piezoelectric sources. Disabling MPP (tie MPP to VCC) bypasses this feature. MPP output current is specified as 1.21–1.72µA in the Electrical Characteristics table.
Does the LTC3106EFE#TRPBF support programmable output voltage?
Yes-the LTC3106EFE#TRPBF supports four discrete output voltages (1.8V, 2.2V, 3.3V, 5.0V) selected via OS1 and OS2 digital inputs (GND/VCC combinations). Output regulation accuracy is ±2.5% over temperature and line/load, with tight tolerance (e.g., 3.23–3.38V for 3.3V setting). This eliminates external feedback resistors and simplifies layout, as confirmed in the Electrical Characteristics table under "Output Regulation Voltage".
LTC3106EFE#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.85V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.8V, 2.2V, 3.3V, 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 300mA
- Frequency - Switching:
- -
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP-EP
LTC3106EFE#TRPBF FAQ
1.How can I place an order for LTC3106EFE#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3106EFE#TRPBF 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 LTC3106EFE#TRPBF reliable?
The price and inventory of LTC3106EFE#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3106EFE#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3106EFE#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3106EFE#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3106EFE#TRPBF?
LTC3106EFE#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3106EFE#TRPBF 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 LTC3106EFE#TRPBF?
For technical support, including LTC3106EFE#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3106EFE#TRPBF requirements.
6.How does Aetrix verify that LTC3106EFE#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3106EFE#TRPBF 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 LTC3106EFE#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3106EFE#TRPBF?
All LTC3106EFE#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3106EFE#TRPBF, 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 LTC3106EFE#TRPBF part is unused and in its original packaging.
Return procedure for LTC3106EFE#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC3106EFE#TRPBF Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
