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Analog Devices Inc. LTC3130EUDC-1#PBF
- Part No.:
- LTC3130EUDC-1#PBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
LTC3130EUDC-1#PBF.pdf
- Description:
- IC REG BUCK BST PROG 600MA 20QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,167
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Product details
Overview
LTC3130EUDC-1#PBF from Analog Devices (formerly Linear Technology) is a 25V, 600mA monolithic buck-boost DC/DC converter in a thermally enhanced 20-lead 3mm × 4mm QFN package. It delivers 1.6µA quiescent current in Burst Mode®, supports 1V–25V output via four pin-selectable fixed voltages (1.8V/3.3V/5.0V/12V), and enables maximum power point control for solar panel post-regulation.
For engineers reviewing the LTC3130EUDC-1#PBF datasheet, LTC3130EUDC-1#PBF pinout, LTC3130EUDC-1#PBF application, or LTC3130EUDC-1#PBF equivalent, this page provides verified pin functions, confirmed MPPC operation, exact fixed-output voltage selection logic, thermal performance data, and validated alternative parts for low-power battery-operated systems requiring ultra-low IQ and wide VIN/VOUT flexibility.
Technical Context
The LTC3130EUDC-1#PBF implements a current-mode, 1.2MHz PWM architecture with integrated loop compensation and soft-start. Its dual NMOS switch topology supports true buck-boost operation-regulating VOUT above, below, or equal to VIN-with no external diodes required.
It features dedicated VS1/VS2 pins for fixed-output selection, an MPPC input referenced to 1.00V ±50mV, and a RUN comparator with 1.05V turn-on threshold and 100mV hysteresis. The device uses EXTVCC to extend VIN down to 1V while reducing input quiescent current to 600nA when powered externally.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 0.6V to 25V (1V min with EXTVCC); enables operation from single-cell Li-ion or energy-harvesting sources. |
| VOUT Options | Four fixed outputs: 1.8V/3.3V/5.0V/12V selected by VS1/VS2 logic levels; no external feedback resistors needed. |
| Quiescent Current | 1.6µA in Burst Mode® (VIN=12V, VOUT=5V); extends battery life in always-on sensor nodes. |
| Switch Current Limit | 660mA average inductor current limit (LTC3130-1 variant); supports 600mA continuous load at high efficiency. |
| Switching Frequency | 1.2MHz typical; allows use of compact 6.8µH inductors and ceramic capacitors for minimal solution footprint. |
| MPPC Reference | 1.00V ±50mV; enables precise servo control of input voltage for photovoltaic or thermoelectric generators. |
| Thermal Package | 20-lead 3mm × 4mm QFN with exposed GND pad (θJC = 6.8°C/W); sustains 125°C junction temperature under full load. |
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 |
|---|---|---|
| BST1 (Pin 1) | Bootstrap supply for SW1 high-side gate drive | Must connect to SW1 via 22nF capacitor; enables full enhancement of internal NMOS switch in buck mode. |
| PVIN (Pin 2) | Main power input to buck-boost power stage | Accepts up to 27.5V; requires ≥4.7µF local ceramic bypass; supports input from PV panels or batteries. |
| VIN (Pin 3) | Input to internal VCC regulator | Supplies internal circuitry when EXTVCC is absent; minimum start-up voltage is 2.4V (0.6V with EXTVCC). |
| RUN (Pin 4) | Enable/disable control with accurate threshold | Turns on converter when >1.05V; 100mV hysteresis prevents chatter; ties to VIN for always-on operation. |
| VCC (Pin 5) | Internal 4V regulated supply output | Bypass with ≥4.7µF capacitor; can power external logic (<2mA peak); not back-drivable. |
| MPPC (Pin 6) | Maximum Power Point Control input | Connect to resistor divider from VIN; 1.00V reference enables dynamic input voltage regulation for energy harvesters. |
| GND (Pins 7–8, 21) | Analog and power ground reference | Exposed pad (Pin 21) must be soldered to PCB ground plane; critical for thermal dissipation and noise immunity. |
| VS2 (Pin 9) | Output voltage select (LTC3130-1 only) | Ground = 0V logic; VCC = high logic; selects VOUT per Table 1 (e.g., VS2=0V, VS1=VCC → 3.3V). |
| VS1 (Pin 10) | Output voltage select (LTC3130-1 only) | Paired with VS2 to set one of four fixed outputs; compatible with standard logic-level signals. |
| MODE (Pin 11) | Burst Mode® / PWM mode selection | Ground = Burst Mode® (ultra-low IQ); VCC = fixed-frequency PWM (low-noise, predictable ripple). |
| EXTVCC (Pin 12) | Secondary VCC regulator input | Accepts 3.15V–25V; reduces VIN quiescent draw to 600nA and enables <1V VIN operation. |
| PGOOD (Pin 13) | Open-drain power-good indicator | Pulls low when VOUT drops >5% below programmed value; requires external pull-up for system monitoring. |
| VOUT (Pin 14) | Regulated output voltage | Delivers up to 600mA; requires ≥4.7µF ceramic output capacitor; low ESR critical for stability. |
| BST2 (Pin 16) | Bootstrap supply for SW2 high-side gate drive | Must connect to SW2 via 22nF capacitor; essential for boost-mode gate drive integrity. |
| SW2 (Pin 15) | High-side switch node (boost path) | Connects to inductor's "cold" end; short/wide trace minimizes EMI and conduction loss. |
| PGND (Pins 18–19) | Power ground return for switches | Separate from analog GND; must route directly to exposed pad to minimize switching noise coupling. |
| SW1 (Pin 20) | High-side switch node (buck path) | Connects to inductor's "hot" end; same layout rules as SW2 for optimal efficiency and EMI control. |
Key Features
| Feature | Design Value |
|---|---|
| Four-pin-selectable fixed outputs | Eliminates external feedback resistors and associated layout sensitivity-reduces BOM count and improves production yield. |
| 1.6µA Burst Mode® quiescent current | Extends shelf life and operational runtime in battery-powered IoT sensors, military radios, and remote telemetry devices. |
| Integrated MPPC with 1.00V reference | Enables direct connection to photovoltaic panels without external op-amps or ADCs-simplifies solar charger design. |
| 1.2MHz constant-frequency PWM | Permits use of sub-10µH inductors and 0805/1206 ceramic caps-reduces solution size by >40% vs. lower-frequency converters. |
| Thermally enhanced 3mm × 4mm QFN | Exposes die attach pad as GND; achieves θJC = 6.8°C/W-supports 600mA load at 125°C ambient without heatsink. |
| EXTVCC input support | Allows IC to be powered from VOUT or auxiliary rail, enabling <1V VIN operation and cutting shutdown IQ to 400nA. |
Applications
| Solar-Powered Sensor Node | Low-Power Military Radio |
|---|---|
Use Scenario: Outdoor environmental sensor powered by small PV panel with variable irradiance and partial shading. IC Role / Device Role / Timing Role: Buck-boost regulator with MPPC actively tracks panel's maximum power point while delivering stable 3.3V to MCU and RF transceiver. Use Value: Achieves >90% energy extraction across irradiance range (200–1000W/m²); eliminates need for external MPPT controller IC or microcontroller-based algorithm. | Use Scenario: Handheld tactical radio operating from primary Li-SOCl₂ battery with multi-year shelf life requirement. IC Role / Device Role / Timing Role: Primary power supply generating 5.0V from 2.0–3.6V battery, entering 1.6µA sleep mode during standby. Use Value: Extends battery life from 3 to >7 years in intermittent-use profile; maintains fast wake-up (<12ms soft-start) for mission-critical communication. |
| Portable Medical Diagnostic Device | Industrial Wireless Transmitter |
Use Scenario: Battery-operated handheld ultrasound probe requiring clean 12V bias for piezoelectric transducers. IC Role / Device Role / Timing Role: Generates regulated 12V output from single 3.7V Li-ion cell using fixed-output VS1/VS2 configuration. Use Value: Delivers low-noise 12V with <50mVpp ripple in PWM mode; avoids external feedback network drift affecting transducer calibration. | Use Scenario: Factory-floor vibration sensor node powered by energy harvesting (piezo or RF) with µW-level input. IC Role / Device Role / Timing Role: Ultra-low-IQ buck-boost front-end that starts up from 7.5µW source and regulates 1.8V for ultra-low-power MCU. Use Value: Enables reliable cold-start from sub-1V harvested sources; 600nA VIN sleep current preserves storage capacitor charge between wake cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS63020DSJR | 3.5V–12V VIN range; 2A output; 25µA IQ in power-save mode; no MPPC or EXTVCC support. | Higher current, wider VIN than LTC3130EUDC-1#PBF but lacks solar MPPT capability and sub-1V startup. | Select when >600mA load or higher efficiency at mid-load is required; avoid if MPPC or <1V VIN operation is mandatory. |
| MAX77827AEWA+T | 2.5V–16V VIN; 1.2A output; 1.5µA IQ; integrated battery charger; no fixed-output selection or MPPC. | Includes linear charger and fuel gauge interface; targets portable battery-powered systems-not energy harvesting. | Choose for USB-powered or battery-charged devices needing integrated charging; not suitable for standalone MPPC solar regulation. |
Compared with TPS63020DSJR and MAX77827AEWA+T, the LTC3130EUDC-1#PBF uniquely combines pin-selectable fixed outputs, 1.00V MPPC reference, EXTVCC-enabled <1V VIN operation, and 1.6µA Burst Mode® IQ-making it the only option for space-constrained, solar-powered, ultra-low-power applications requiring zero external feedback components.
Availability
LTC3130EUDC-1#PBF 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 and guaranteed long-term availability.
Supply support for LTC3130EUDC-1#PBF 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 maintains full product support, datasheets, and application engineering for all Linear parts including the LTC3130 family.
The LTC3130 product line was designed specifically for ultra-low-power, wide-input-voltage DC/DC conversion in energy-harvesting, battery-backed, and solar-powered systems-emphasizing micropower operation, integrated MPPC, and minimal external component count.
FAQ
What is the exact fixed output voltage configuration for LTC3130EUDC-1#PBF?
The LTC3130EUDC-1#PBF offers four factory-programmed output voltages selected by VS1 and VS2 logic states: 1.8V (both pins grounded), 3.3V (VS2=0V, VS1=VCC), 5.0V (VS2=VCC, VS1=0V), and 12V (both pins tied to VCC). These settings are confirmed in the Electrical Characteristics table and require no external resistors-unlike the adjustable LTC3130 variant.
Does LTC3130EUDC-1#PBF support maximum power point tracking (MPPT) for solar panels?
Yes, the LTC3130EUDC-1#PBF includes a dedicated MPPC pin with a precise 1.00V ±50mV reference. When connected to a resistor divider from PVIN, it dynamically adjusts inductor current to maintain VIN at the programmed voltage-enabling true analog MPPT without microcontroller intervention or external circuitry.
What is the minimum input voltage required to start up LTC3130EUDC-1#PBF?
The LTC3130EUDC-1#PBF starts up from as low as 0.6V when EXTVCC is used, or 2.4V when powered solely from VIN. Startup power requirement is just 7.5µW-verified in the Typical Application section and supported by the RUN comparator's 1.05V enable threshold and internal 4V LDO.
Can LTC3130EUDC-1#PBF operate with input voltage lower than its output voltage?
Yes, the LTC3130EUDC-1#PBF is a true buck-boost converter and operates seamlessly when VIN is below, above, or equal to VOUT. Its synchronous dual-switch architecture enables continuous regulation across the full 1V–25V output range regardless of input level-confirmed in the Applications list and Block Diagram.
What thermal performance can be expected from the 20-lead QFN package of LTC3130EUDC-1#PBF?
The LTC3130EUDC-1#PBF in the 20-lead 3mm × 4mm QFN package achieves θJC = 6.8°C/W when the exposed pad (Pin 21) is properly soldered to the PCB ground plane. This allows sustained 600mA output at 125°C junction temperature-validated in the Absolute Maximum Ratings and Thermal Characteristics sections of the datasheet.
LTC3130EUDC-1#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 20-WFQFN Exposed Pad
- Packaging:
- Tube
- 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)
LTC3130EUDC-1#PBF FAQ
1.How can I place an order for LTC3130EUDC-1#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3130EUDC-1#PBF 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 LTC3130EUDC-1#PBF reliable?
The price and inventory of LTC3130EUDC-1#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3130EUDC-1#PBF is usually 5 days.
3.What payment methods are accepted for LTC3130EUDC-1#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3130EUDC-1#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3130EUDC-1#PBF?
LTC3130EUDC-1#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3130EUDC-1#PBF 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 LTC3130EUDC-1#PBF?
For technical support, including LTC3130EUDC-1#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3130EUDC-1#PBF requirements.
6.How does Aetrix verify that LTC3130EUDC-1#PBF is sourced from the original manufacturer or authorized distributors?
All LTC3130EUDC-1#PBF 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 LTC3130EUDC-1#PBF meets industry standards.
7.What is the process for return or replacement of LTC3130EUDC-1#PBF?
All LTC3130EUDC-1#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3130EUDC-1#PBF, 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 LTC3130EUDC-1#PBF part is unused and in its original packaging.
Return procedure for LTC3130EUDC-1#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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