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Analog Devices Inc. LTC3130IMSE#PBF
- Part No.:
- LTC3130IMSE#PBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC3130IMSE#PBF.pdf
- Description:
- IC REG BUCK BST ADJ 600MA 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:493
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Product details
Overview
LTC3130IMSE#PBF from Analog Devices (formerly Linear Technology) is a monolithic, current-mode buck-boost DC/DC converter optimized for ultra-low-power, wide-input applications. It delivers up to 600mA output current, supports input voltages from 2.4V to 25V (or down to 1V with EXTVCC), regulates output from 1V to 25V, and achieves just 1.6µA quiescent current in Burst Mode® operation - enabling multi-year battery life in remote sensors and military radios.
For engineers reviewing the LTC3130IMSE#PBF datasheet, LTC3130IMSE#PBF pinout, LTC3130IMSE#PBF application, or LTC3130IMSE#PBF equivalent, key selection criteria include its 1.2MHz ultralow-noise PWM architecture, programmable maximum power point control (MPPC) for solar harvesting, accurate RUN comparator threshold (1.05V typ), and thermally enhanced 16-lead MSOP package with exposed pad for industrial-grade thermal performance.
Technical Context
The LTC3130IMSE#PBF employs a synchronous 4-switch buck-boost topology with integrated 0.35Ω NMOS power switches, enabling seamless regulation where VOUT can be above, below, or equal to VIN. Its current-mode control loop uses built-in compensation and soft-start (12ms typical), eliminating external compensation components.
Burst Mode® operation reduces light-load quiescent current to 1.6µA while maintaining tight output regulation; fixed-frequency PWM mode (1.2MHz ±20%) minimizes EMI and enables use of compact 22nF bootstrap capacitors and low-profile inductors. MPPC functionality dynamically adjusts inductor current to maintain optimal input voltage from photovoltaic or high-impedance sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.4V to 25V (startup from 7.5µW source); extends to 1V with EXTVCC input - supports single-cell Li-ion, supercapacitors, and solar inputs. |
| Output Voltage Range | 1V to 25V (adjustable via FB resistor divider) - enables single-supply generation of logic, analog, and RF rails. |
| Quiescent Current (Burst Mode) | 1.6µA (typ) at VIN=12V, VOUT=5V - preserves battery energy in always-on sensor nodes. |
| Switching Frequency | 1.2MHz (±20%) - allows use of <10µH inductors and ceramic capacitors, minimizing solution footprint. |
| Peak Efficiency | 95% - achieved across buck, boost, and buck-boost regions, reducing thermal load in sealed enclosures. |
| Current Limit Options | Pin-selectable 250mA / 660mA average inductor current limit (via ILIM pin) - balances output capability vs. thermal margin. |
| Power Good Output | Open-drain PGOOD with –5% threshold and 2.5% hysteresis - provides reliable system reset and sequencing control. |
Pinout & Package
Package: 16-lead plastic MSOP with exposed thermal pad (Pin 17 = GND). Requires soldering of exposed pad to PCB ground plane for θJA = 40°C/W and thermal shutdown protection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1, Exposed Pad) | Ground Reference | Primary signal and power ground; exposed pad must be soldered to PCB ground plane for thermal and electrical integrity. |
| BST1 (Pin 2) | Bootstrap Supply for SW1 High-Side Driver | Connects via 22nF capacitor to SW1; enables full enhancement of internal high-side NMOS switch. |
| SW1 (Pin 3) | Switch Node 1 | Connects to one side of power inductor; requires short, wide PCB trace to minimize switching losses and EMI. |
| PVIN (Pin 4) | Main Power Input | Primary input path for buck-boost power stage; requires ≥4.7µF ceramic bypass capacitor close to pin. |
| VIN (Pin 5) | VCC Regulator Input | Supplies internal 4V LDO; minimum 1µF ceramic decoupling required; UVLO at 2.3V (rising). |
| RUN (Pin 6) | Enable/Standby Control | 1.05V rising threshold enables switching; 0.6V threshold enables reference-only standby mode - enables precise VIN start-up control. |
| VCC (Pin 7) | Internal 4V Regulator Output | Supplies internal circuitry; can power external logic ≤2mA; dropout <100mV at 3V input. |
| MPPC (Pin 8) | Maximum Power Point Control Input | Accepts resistor divider from VIN; 1.00V reference sets optimal input voltage - critical for solar panel energy harvesting. |
| VS2/FB (Pin 9) | Feedback Input (LTC3130) or VOUT Select (LTC3130-1) | This part is LTC3130 (not -1), so FB pin sets output via resistor divider; 1.000V reference (±20mV) ensures ±2% output accuracy. |
| VS1/ILIM (Pin 10) | Current Limit Selection (LTC3130) | ILIM function: logic-high (≥1.1V) selects 660mA avg. limit; logic-low (≤0.35V) selects 250mA - configures for load and thermal requirements. |
| MODE (Pin 11) | Operation Mode Select | Ground = Burst Mode® (ultra-low IQ); VCC = fixed 1.2MHz PWM (low-noise, predictable frequency). |
| EXTVCC (Pin 12) | Secondary VCC Regulator Input | Accepts 3.15V–25V supply; enables operation down to 1V VIN and reduces input quiescent current to 600nA when active. |
| PGOOD (Pin 13) | Power Good Indicator | Open-drain output asserts low when VOUT drops >5% below regulation - used for system enable/disable sequencing. |
| VOUT (Pin 14) | Regulated Output | Delivers up to 600mA; requires ≥4.7µF ceramic output capacitor; UV threshold = 0.7V (rising). |
| BST2 (Pin 15) | Bootstrap Supply for SW2 High-Side Driver | Connects via 22nF capacitor to SW2; enables full gate drive for second high-side NMOS switch. |
| SW2 (Pin 16) | Switch Node 2 | Connects to other side of power inductor; symmetric layout with SW1 essential for balanced operation. |
Key Features
| Feature | Design Value |
|---|---|
| 1.6µA Burst Mode® Quiescent Current | Extends shelf life and operational lifetime of coin-cell–powered devices beyond 10 years at µA-level loads. |
| Programmable Maximum Power Point Control (MPPC) | Enables >90% energy extraction from low-current, high-impedance sources like indoor solar cells or thermoelectric generators. |
| 1.2MHz Ultralow-Noise PWM Architecture | Reduces EMI filtering requirements and allows use of 2.5mm × 2.0mm inductors - shrinking total solution area by >30% vs. 500kHz designs. |
| Accurate RUN Comparator Threshold (1.05V ±40mV) | Permits precise, temperature-stable startup control from weak input sources without external comparators or hysteresis networks. |
| Integrated Soft-Start (12ms) | Prevents inrush current and output overshoot during power-up - eliminates need for external timing capacitors or sequencers. |
| Thermally Enhanced MSOP with Exposed Pad | Delivers 40°C/W junction-to-ambient thermal resistance - sustains 600mA continuous output at +85°C ambient without derating. |
Applications
| Solar-Powered Environmental Sensor Node | Portable Military Radio Power Management |
|---|---|
|
Use Scenario: Indoor/outdoor wireless sensor node powered by small-area amorphous silicon solar cell (100–500µW under ambient light). IC Role / Device Role: Primary buck-boost regulator and MPPC controller that extracts maximum power from the non-ideal PV source while regulating stable 3.3V for MCU and radio transceiver. Use Value: Enables continuous operation without batteries; MPPC maintains >92% input power utilization across varying light conditions, extending deployment duration indefinitely. |
Use Scenario: Handheld tactical radio operating from single 3.7V Li-ion cell with dynamic load ranging from 10mA (standby) to 500mA (transmit). IC Role / Device Role: Wide-input buck-boost converter generating regulated 5V rail for RF PA and 1.8V for digital baseband, with Burst Mode® for ultra-low standby IQ. Use Value: Delivers 95% peak efficiency across entire VIN range (3.0V–4.2V), extending talk time by 22% vs. legacy solutions; 1.6µA shutdown current preserves charge during weeks of storage. |
| Low-Power Industrial IoT Edge Node | Long-Life Battery-Operated Instrumentation |
|
Use Scenario: Wireless vibration monitor mounted on rotating machinery, powered by primary lithium thionyl chloride (LiSOCl₂) cell with 10-year design life. IC Role / Device Role: Primary voltage regulator converting 3.6V nominal battery to stable 3.3V and 1.8V rails for accelerometer, MCU, and BLE radio - operating exclusively in Burst Mode® between wake-ups. Use Value: 1.6µA quiescent current ensures <1% annual battery drain during sleep, directly enabling the 10-year specification; integrated PGOOD simplifies firmware-controlled power sequencing. |
Use Scenario: Submersible water quality logger deployed for 5+ years in remote locations, powered by two AA lithium batteries. IC Role / Device Role: Buck-boost regulator maintaining constant 3.3V output as battery voltage declines from 3.2V to 2.0V, while supporting intermittent 400mA sensor excitation pulses. Use Value: Seamless buck-boost operation eliminates need for battery replacement or complex voltage monitoring; 600mA peak current capability handles high-pulse loads without brownout. |
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 | Higher 2.5µA IQ in power-save mode; no MPPC; 96% peak efficiency; 2.5V–5.5V input only. | Lacks solar harvesting capability; limited to mid-range input voltages - unsuitable for 1V–25V universal input or photovoltaic systems. | Select when cost sensitivity outweighs ultra-low IQ or MPPC needs; verify thermal performance at 600mA in MSOP footprint. |
| MAX77827BEWC+ | 0.9µA shutdown IQ; 2.5V–16V input; fixed 3.3V/5.0V outputs only; no adjustable FB or MPPC. | Fixed-output only - cannot support custom VOUT or solar MPPT; lower max input voltage excludes 24V industrial bus compatibility. | Choose for simple, low-cost fixed-rail applications where input range and programmability are not required. |
Compared with TPS63020DSJR and MAX77827BEWC+, the LTC3130IMSE#PBF uniquely combines 1.6µA Burst Mode® IQ, 1V–25V input flexibility, adjustable output, and integrated MPPC - making it the only option capable of powering long-life solar-harvesting and wide-input industrial edge nodes from a single IC.
Availability
LTC3130IMSE#PBF is available at Aetrix Electronics and suitable for solar panel post-regulators, portable military radios, and low-power sensor nodes requiring stable component supply across extended product lifecycles and harsh environmental conditions.
Supply support for LTC3130IMSE#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 its precision analog and power management portfolio with full backward compatibility and long-term product support.
The LTC3130 belongs to Linear's high-efficiency, ultralow-quiescent-current DC/DC converter family, designed specifically for energy-constrained applications including battery-powered instrumentation, solar harvesters, and military communications equipment.
FAQ
What is the minimum input voltage required to start up the LTC3130IMSE#PBF?
The LTC3130IMSE#PBF achieves startup from as low as 7.5µW - corresponding to approximately 2.4V at VIN when EXTVCC is unconnected. With EXTVCC enabled (≥3.15V), startup occurs from inputs as low as 0.6V, enabling operation from deeply discharged batteries or low-light solar cells. This behavior is confirmed in the Electrical Characteristics table under "VIN Start-Up Voltage".
Does the LTC3130IMSE#PBF support true buck-boost operation where VOUT can be greater than, less than, or equal to VIN?
Yes, the LTC3130IMSE#PBF implements a 4-switch synchronous buck-boost topology that inherently supports all three operating modes - buck (VOUT < VIN), boost (VOUT > VIN), and buck-boost (VOUT ≈ VIN) - without mode transitions or discontinuities. This is verified in the Typical Application schematic and the "Regulates VOUT Above, Below or Equal to VIN" application bullet.
How does the MPPC function work on the LTC3130IMSE#PBF, and what is its reference voltage?
The MPPC pin on the LTC3130IMSE#PBF compares an external resistor divider from VIN against an internal 1.00V reference (±50mV). When the divider voltage falls below this threshold, the controller reduces inductor current to raise VIN toward the programmed setpoint - enabling maximum power extraction from photovoltaic panels or other high-impedance sources. This is documented in the Pin Functions section and Electrical Characteristics table.
What is the purpose of the ILIM pin on the LTC3130IMSE#PBF, and what current limits does it select?
The ILIM pin on the LTC3130IMSE#PBF selects between two average inductor current limits: logic-low (≤0.35V) configures 250mA, while logic-high (≥1.1V) configures 660mA. This allows designers to optimize thermal performance and output capability per application - e.g., 250mA for ultra-low-power sensors, 660mA for higher-current RF modules. Confirmed in the Electrical Characteristics table under "Inductor Average Current Limit".
Can the LTC3130IMSE#PBF operate without an external EXTVCC supply, and how does that affect quiescent current?
Yes, the LTC3130IMSE#PBF operates fully without EXTVCC - using VIN to power the internal VCC regulator. In Burst Mode®, quiescent current is 1.6µA (typ) with VIN only. When EXTVCC is applied (≥3.15V), VIN supply current drops to 600nA (typ) in Burst Mode®, significantly extending battery life in buck-dominated applications. This is specified in the Electrical Characteristics table under "VIN Sleep Current When Powered by EXTVCC".
LTC3130IMSE#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.4V
- Voltage - Input (Max):
- 25V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 25V
- 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:
- 16-MSOP-EP
LTC3130IMSE#PBF FAQ
1.How can I place an order for LTC3130IMSE#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3130IMSE#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 LTC3130IMSE#PBF reliable?
The price and inventory of LTC3130IMSE#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3130IMSE#PBF is usually 5 days.
3.What payment methods are accepted for LTC3130IMSE#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3130IMSE#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3130IMSE#PBF?
LTC3130IMSE#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3130IMSE#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 LTC3130IMSE#PBF?
For technical support, including LTC3130IMSE#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3130IMSE#PBF requirements.
6.How does Aetrix verify that LTC3130IMSE#PBF is sourced from the original manufacturer or authorized distributors?
All LTC3130IMSE#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 LTC3130IMSE#PBF meets industry standards.
7.What is the process for return or replacement of LTC3130IMSE#PBF?
All LTC3130IMSE#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3130IMSE#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 LTC3130IMSE#PBF part is unused and in its original packaging.
Return procedure for LTC3130IMSE#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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