LTC3124EFE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LTC3124EFE#PBF is a 15 V, 5 A two-phase synchronous step-up DC/DC converter with output disconnect, accepting input voltages from 0.5 V to 5.5 V and delivering regulated output from 2.5 V to 15 V. Current-mode PWM control and dual-phase architecture minimize input and output ripple for demanding portable power applications. Available worldwide in TSSOP-16 package for battery-powered and IoT power management designs.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- LTC3124EFE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.5000(MOQ 1)
- Temp Range
- ?°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 2-phase synchronous boost architecture with 5 A output current capability reduces input and output ripple by up to 50% compared to single-phase designs at the same switching frequency
- Wide 0.5 V to 5.5 V input range supports operation from a single alkaline cell, NiMH battery pack, or USB 5 V rail up to 15 V programmable output voltage
- Integrated output disconnect switch eliminates reverse current leakage when the output is loaded below input voltage, protecting battery-backed circuits during power sequencing
Applications
The LTC3124EFE#PBF is ideal for portable instruments, wearable devices, and industrial sensor nodes that boost a 1-cell or 2-cell lithium battery from 2.5 V to 4.2 V up to a regulated 5 V, 9 V, or 12 V output for powering USB peripherals, analog front-ends, or RF transceivers. Its two-phase topology and output disconnect make it especially suitable for medical handheld devices requiring clean power supply rails and safe output shutdown. It also serves wireless IoT gateways and field transmitters that draw up to 5 A peak from a 3.6 V lithium primary cell while maintaining tight output voltage regulation from 2.5 V to 15 V.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1663 (BC) |
| YTEOL | 10 |
| Additional Feature | OUTPUT VOLTAGE RANGE FROM 2.5 VOLT TO 15 VOLT |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 0.5V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 5A |
| Output Voltage-Max | 15V |
| Output Voltage-Min | 2.5V |
| Output Voltage-Nom | 12V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 1170kHz |
| Technology | CMOS |
| Temperature Grade | OTHER |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input and output voltage ranges does the LTC3124EFE#PBF support and how does that make it flexible across battery chemistries?
The LTC3124EFE#PBF accepts an input voltage of 0.5 V to 5.5 V and can regulate the output from 2.5 V to 15 V, covering a wide range of battery chemistries including single-cell alkaline (0.9 V to 1.5 V), lithium primary (3.0 V to 3.6 V), and 1S LiPo (2.7 V to 4.2 V). This flexibility allows a single power stage to support AAA-battery-powered IoT sensors, USB 5 V bus-powered modules, and 3.6 V industrial field instruments all boosting to a common 5 V or 12 V system rail.
How does the 2-phase architecture of the LTC3124EFE#PBF reduce ripple compared to a single-phase boost converter delivering 5 A?
The two interleaved switching phases of the LTC3124EFE#PBF operate 180° out of phase, so the peak inductor current of each phase is only 2.5 A while the combined output delivers 5 A. This interleaving cancels a significant portion of input and output ripple current, effectively doubling the ripple frequency seen by the capacitors and allowing smaller input and output capacitor values than a single-phase design, reducing total solution size and improving EMI performance in noise-sensitive applications such as RF front-ends and precision ADC power supplies.
What does the output disconnect feature of the LTC3124EFE#PBF protect against in battery-powered designs?
The integrated output disconnect switch in the LTC3124EFE#PBF prevents reverse current flow from the output load back into the battery when the output voltage is lower than the input, such as during startup or shutdown sequences. In portable designs where the battery voltage rises above the regulated output momentarily, the disconnect protects downstream circuits from overvoltage by isolating the output node, and it enables controlled load sequencing in multi-rail systems where 5 V and 12 V rails must power up in a defined order to avoid damaging sensitive 15 V-rated analog and RF components.
For a portable medical device requiring a clean 12 V rail from a 3.7 V LiPo battery, why is the LTC3124EFE#PBF a preferred choice over a single-phase boost regulator?
The LTC3124EFE#PBF's 2-phase PWM architecture reduces output ripple to well below 10 mV at 5 A load from a 3.7 V LiPo input boosting to 12 V, which is critical for medical analog front-end circuits and precision DAC power rails sensitive to supply noise. Its 0.5 V to 5.5 V input range ensures it continues to regulate 12 V output even as the LiPo discharges below 3.0 V, maximizing battery life, while the output disconnect prevents current injection during power sequencing, a common reliability requirement in IEC 60601-1 compliant medical device power supply designs.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $10.4900 | $10.49 |
| 10+ | $7.1470 | $71.47 |
| 19+ | $5.9600 | $113.24 |
| 1000+ | $4.5000 | $4500.00 |
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