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Analog Devices Inc. LTC3130IUDC-1#TRPBF
- Part No.:
- LTC3130IUDC-1#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
LTC3130IUDC-1#TRPBF.pdf
- Description:
- IC REG BUCK BST PROG 600MA 20QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,641
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Product details
Overview
LTC3130IUDC-1#TRPBF from Analog Devices (formerly Linear Technology) is a 25V, 600mA buck-boost DC/DC converter in a thermally enhanced 20-lead 3mm × 4mm QFN package, featuring 1.6µA quiescent current in Burst Mode®, 1.2MHz ultralow-noise PWM operation, and integrated maximum power point control (MPPC) for solar energy harvesting. It delivers fixed output voltages of 1.8V, 3.3V, 5.0V, or 12V via VS1/VS2 pin selection and supports input as low as 0.6V when powered via EXTVCC - ideal for long-life battery-powered sensors and solar-charged IoT edge nodes.
For engineers reviewing the LTC3130IUDC-1#TRPBF datasheet, LTC3130IUDC-1#TRPBF pinout, LTC3130IUDC-1#TRPBF application, or LTC3130IUDC-1#TRPBF equivalent, key selection criteria include its four-pin-selectable fixed outputs, MPPC capability for photovoltaic sources, sub-1V startup with EXTVCC, thermal performance in the 3mm × 4mm QFN, and compatibility with ceramic capacitors and low-profile inductors in space-constrained designs.
Technical Context
The LTC3130IUDC-1#TRPBF implements a current-mode, monolithic buck-boost topology with dual NMOS switches (SW1/SW2), bootstrapped gate drives (BST1/BST2), and built-in loop compensation. Its architecture enables seamless regulation across VIN < VOUT (boost), VIN > VOUT (buck), and VIN ≈ VOUT (buck-boost) regions without mode switching artifacts.
It integrates an accurate RUN comparator (1.05V threshold, 100mV hysteresis), programmable MPPC (0.95–1.05V reference), power-good indicator (±5% VOUT tolerance), and internal 4V LDO for VCC - all operating over –40°C to +125°C junction temperature. The MODE pin selects between fixed-frequency PWM (1.2MHz) and ultralow-IQ Burst Mode® operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.6V to 25V (with EXTVCC ≥ 3.15V); enables direct Li-SOCl₂ or single-cell NiMH operation |
| Output Voltage Options | 1.8V / 3.3V / 5.0V / 12V (pin-selectable via VS1/VS2 logic levels) |
| Quiescent Current | 1.6µA in Burst Mode® (VIN = 12V, VOUT = 5V) - extends battery life in sleep-state sensor nodes |
| Switching Frequency | 1.2MHz (typical), ±20% variation - allows use of ≤10µH inductors and avoids AM radio band interference |
| Current Limit | 660mA average inductor current limit (LTC3130-1 variant) - sets safe continuous output under load |
| MPPC Reference | 1.00V ±50mV - enables precise tracking of photovoltaic panel maximum power point |
| Thermal Package | 20-lead 3mm × 4mm QFN with exposed GND pad (θJC = 6.8°C/W) - supports 600mA continuous output at 125°C ambient |
Pinout & Package
Package: 20-lead (3mm × 4mm) plastic QFN with exposed thermal pad (Pin 21 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 7, 8, 21) | Ground reference and thermal path | Exposed pad (Pin 21) must be soldered to PCB ground plane; pins 7/8 are signal GND returns |
| BST1 / BST2 | Bootstrap supply for high-side NMOS gates | Each requires dedicated 22nF capacitor to SW1/SW2; critical for efficient 100% duty-cycle boost operation |
| PVIN / VIN | Main power input / VCC regulator input | PVIN powers converter core; VIN supplies internal 4V LDO - decoupling required per pin |
| RUN | Enable comparator input | 1.05V rising threshold with 100mV hysteresis; enables predictable startup and standby mode at 0.6V |
| VCC | Internal 4V regulated supply output | Bypass with ≥4.7µF ceramic; can power external circuitry ≤2mA without affecting regulation |
| MPPC | Maximum Power Point Control input | 0.95–1.05V reference; connects to resistor divider from PVIN to enable solar MPPT without external controller |
| VS1 / VS2 | Fixed output voltage select inputs | Logic-high/low combinations set VOUT to 1.8V/3.3V/5.0V/12V - no external feedback resistors needed |
| MODE | Operating mode control | Low = Burst Mode® (ultralow IQ); High = fixed 1.2MHz PWM (low-noise, constant frequency) |
| EXTVCC | Secondary VCC regulator input | Accepts 3.15–25V; enables sub-1V VIN operation and reduces input quiescent current in buck configurations |
| PGOOD | Open-drain power-good indicator | Pulls low when VOUT deviates >5% from programmed value; requires external pull-up for system monitoring |
| VOUT / SW1 / SW2 / PGND | Regulated output / switch nodes / power ground | VOUT requires ≥4.7µF ceramic; SW1/SW2 need short/wide traces; PGND must have low-impedance path to GND |
Key Features
| Feature | Design Value |
|---|---|
| Four-pin-selectable fixed outputs | Eliminates external feedback resistors and layout sensitivity - simplifies BOM and improves production yield |
| Integrated MPPC with 1.00V reference | Enables autonomous solar panel MPPT without microcontroller or external op-amps - reduces system cost and firmware overhead |
| 1.6µA Burst Mode® quiescent current | Extends shelf life and operational runtime in battery-powered devices with infrequent wake cycles (e.g., environmental sensors) |
| 1.2MHz ultralow-noise PWM | Minimizes EMI and allows compact magnetics - supports high-density PCB layouts in portable military radios and wearables |
| Sub-1V startup with EXTVCC | Permits operation from deeply discharged batteries or low-voltage energy harvesters - critical for maintenance-free remote deployments |
| Thermally enhanced 3mm × 4mm QFN | Delivers 600mA continuous output at full temperature range (–40°C to +125°C) without derating - suitable for industrial edge nodes |
Applications
| Solar-Powered Sensor Node | Portable Military Radio |
|---|---|
|
Use Scenario: Outdoor environmental sensor collecting temperature, humidity, and light data, powered by a small photovoltaic cell and supercapacitor buffer. IC Role / Device Role / Timing Role: Buck-boost regulator providing stable 3.3V to MCU and RF transceiver while extracting maximum power from the PV panel via MPPC. Use Value: 1.6µA quiescent current preserves stored energy during nights/cloudy periods; 1.2MHz switching avoids interference with 2.4GHz ISM-band radio operation. |
Use Scenario: Handheld tactical radio operating from primary lithium thionyl chloride (Li-SOCl₂) battery with multi-year shelf life requirement. IC Role / Device Role / Timing Role: Primary power management IC converting 3.6V nominal battery voltage to regulated 5.0V for digital baseband and 12V for RF power amplifier stages. Use Value: Sub-1V startup enables full functionality even after deep discharge; 600mA output supports burst TX current without brownout. |
| Low-Power Industrial IoT Gateway | Long-Life Battery Instrument |
|
Use Scenario: Edge gateway aggregating BLE/Zigbee sensor data and transmitting via LTE-M, deployed in unattended locations for >10 years. IC Role / Device Role / Timing Role: System power supervisor delivering 1.8V to memory, 3.3V to MCU, and 5.0V to modem - dynamically reconfigured via VS1/VS2 based on active subsystems. Use Value: Pin-selectable outputs eliminate need for multiple regulators; EXTVCC input allows ultra-low-VIN operation during battery aging. |
Use Scenario: Portable handheld instrument measuring pH or dissolved oxygen in field labs, powered by two AA alkaline cells with 5+ year service interval. IC Role / Device Role / Timing Role: Main DC/DC converter maintaining 5.0V rail across 3.2V–0.9V battery voltage range, enabling consistent ADC reference and display backlight performance. Use Value: 0.6V minimum input extends usable battery capacity beyond conventional buck converters; thermal QFN ensures reliability during extended measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS63020DSJR | Lower max input (5.5V), no MPPC, higher IQ (22µA), 2.5MHz switching | Not suitable for solar MPPT or >5.5V input sources like 4-cell Li-ion or 24V industrial rails | Select only for compact, high-frequency, non-solar applications where input stays below 5.5V |
| MAX20406AWE+T | Higher IQ (12µA), no MPPC, 4.5–16V input, 3A output, integrated FETs | Targets high-current industrial loads but lacks photovoltaic optimization and sub-1V startup capability | Prefer for high-power systems requiring >600mA; avoid when solar harvesting or ultra-low-IQ is mandatory |
Compared with TPS63020DSJR and MAX20406AWE+T, the LTC3130IUDC-1#TRPBF uniquely combines solar MPPC, 1.6µA quiescent current, 25V input support, and pin-selectable fixed outputs - making it the only choice for long-life, energy-harvesting, wide-input industrial sensor nodes.
Availability
LTC3130IUDC-1#TRPBF is available at Aetrix Electronics and suitable for solar panel post-regulators, portable military radios, and long-life battery-operated instruments requiring stable component supply, extended temperature operation (–40°C to +125°C), and reliable long-term sourcing.
Supply support for LTC3130IUDC-1#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, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and power management semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC3130/LTC3130-1 product line was designed specifically for ultra-low-power, wide-input-range DC/DC conversion in energy-constrained and harsh-environment applications - emphasizing efficiency at microamp loads, robustness across extreme temperatures, and integration of solar harvesting features.
FAQ
What is the minimum input voltage required for startup of the LTC3130IUDC-1#TRPBF?
The LTC3130IUDC-1#TRPBF achieves startup from as low as 0.6V when powered via EXTVCC ≥ 3.15V; with EXTVCC unconnected, minimum VIN for startup is 2.4V. This capability enables operation from nearly depleted batteries or low-voltage energy harvesters - a key differentiator versus standard buck-boost ICs. Startup behavior is confirmed in the Electrical Characteristics table under "VIN Start-Up Voltage".
How does the MPPC function work in the LTC3130IUDC-1#TRPBF, and what external components are needed?
The MPPC function in the LTC3130IUDC-1#TRPBF uses an internal 1.00V reference to servo the input voltage (PVIN) to a user-defined maximum power point. A simple resistor divider from PVIN to GND sets the target voltage (e.g., 5.0V → 1MΩ/1MΩ). No external op-amps or controllers are required. The MPPC pin draws only 1–20nA, minimizing loading error - details are specified in the "MPPC Input Current" parameter and Figure 12 of the datasheet.
Can the LTC3130IUDC-1#TRPBF be used without external feedback resistors?
Yes - the LTC3130IUDC-1#TRPBF integrates four fixed-output voltage options (1.8V, 3.3V, 5.0V, 12V) selected solely by logic levels on VS1 and VS2 pins. Unlike the adjustable LTC3130 variant, it requires no external FB resistors, reducing component count, layout complexity, and potential drift errors. This is explicitly defined in Table 1 ("VOUT Program Settings for the LTC3130-1") of the datasheet.
What is the thermal performance of the LTC3130IUDC-1#TRPBF in its 3mm × 4mm QFN package?
The LTC3130IUDC-1#TRPBF in the 20-lead 3mm × 4mm QFN package has θJC = 6.8°C/W and θJA = 52°C/W (measured per JEDEC JESD51-7). With the exposed pad properly soldered to a 1-in² copper area, it delivers 600mA continuous output at 125°C ambient temperature. Thermal shutdown activates above 165°C junction temperature - verified in the Absolute Maximum Ratings and Typical Performance Characteristics sections.
Does the LTC3130IUDC-1#TRPBF support both Burst Mode® and fixed-frequency PWM operation?
Yes - the MODE pin selects between Burst Mode® (MODE = 0V) for ultralow 1.6µA quiescent current at light loads, and fixed-frequency 1.2MHz PWM (MODE = VCC) for low-noise, constant-frequency operation. The internal 3MΩ pull-down ensures default Burst Mode® if MODE is left floating after startup. This dual-mode flexibility is documented in the "MODE Input Logic" specifications and Operation section.
LTC3130IUDC-1#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 20-WFQFN 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):
- 2.4V
- Voltage - Input (Max):
- 25V
- Voltage - Output (Min/Fixed):
- 1.8V, 3.3V, 5V, 12V
- Voltage - Output (Max):
- -
- Current - Output:
- 600mA
- Frequency - Switching:
- 1.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-QFN (3x4)
LTC3130IUDC-1#TRPBF FAQ
1.How can I place an order for LTC3130IUDC-1#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3130IUDC-1#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 LTC3130IUDC-1#TRPBF reliable?
The price and inventory of LTC3130IUDC-1#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3130IUDC-1#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3130IUDC-1#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3130IUDC-1#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3130IUDC-1#TRPBF?
LTC3130IUDC-1#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3130IUDC-1#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 LTC3130IUDC-1#TRPBF?
For technical support, including LTC3130IUDC-1#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3130IUDC-1#TRPBF requirements.
6.How does Aetrix verify that LTC3130IUDC-1#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3130IUDC-1#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 LTC3130IUDC-1#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3130IUDC-1#TRPBF?
All LTC3130IUDC-1#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3130IUDC-1#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 LTC3130IUDC-1#TRPBF part is unused and in its original packaging.
Return procedure for LTC3130IUDC-1#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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