LTC7840EFE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Dual-phase dual-output non-synchronous boost controller supporting input voltages from 5.5 V to 60 V with current-mode pulse-width modulation. Designed for high-voltage industrial power conversion applications. Available in small outline package with nominal 12 V operation.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- LTC7840EFE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.3400(MOQ 19)
- Temp Range
- ?°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-phase dual-output architecture enables higher power delivery with reduced output ripple in boost converter designs
- Current-mode PWM control with input voltage range from 5.5 V to 60 V supports a wide variety of industrial power topologies
- Compact Small Outline Package (FE) footprint with 26-parameter spec coverage simplifies high-density PCB integration
Applications
LTC7840EFE#PBF is well suited for industrial equipment requiring regulated boost conversion from wide-range DC inputs up to 60 V, such as motor drive pre-regulators and telecom bus converters. Its dual-phase, dual-output topology also makes it a strong choice for multi-rail power management in ruggedized embedded systems and automotive-adjacent 12 V rail applications.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1663 (EA) |
| Date Of Intro | 2018-07-24 |
| YTEOL | 10 |
| Analog IC - Other Type | DUAL SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 60V |
| Input Voltage-Min | 5.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 0.1A |
| 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 | 750kHz |
| 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 voltage range does LTC7840EFE#PBF support for boost conversion?
LTC7840EFE#PBF accepts an input voltage from 5.5 V up to 60 V, with a nominal operating point of 12 V. This wide 60 V tolerance makes it suitable for industrial and telecom applications where the input bus can swing significantly under load transients or during startup.
How does the dual-phase topology of LTC7840EFE#PBF reduce output ripple compared to a single-phase design?
By interleaving 2 phases 180° apart, the LTC7840EFE#PBF effectively doubles the ripple frequency seen at the output capacitor, which can cut peak-to-peak output ripple voltage by up to 50% versus a single-phase boost stage at the same switching frequency and capacitance. This allows designers to use smaller, lower-ESR output capacitors while still meeting tight ripple budgets.
Which package does LTC7840EFE#PBF use, and how does it affect board layout for a 60 V boost design?
LTC7840EFE#PBF ships in a Small Outline (FE) package with Manufacturer Package Code 05-08-1663. The compact SMD footprint keeps high-current gate-drive traces short, reducing parasitic inductance—important when switching at elevated voltages up to 60 V where ringing can stress gate oxides. The 26-pin exposed pad variant also aids thermal dissipation in continuous-power applications.
When is LTC7840EFE#PBF preferred over a synchronous boost controller for a 48 V bus design?
Non-synchronous boost controllers like LTC7840EFE#PBF are preferred when the output voltage must always exceed the 48 V input, since a synchronous design's body diode can create shoot-through paths during transitions above 40 V. The LTC7840's current-mode PWM also provides inherent cycle-by-cycle current limiting at up to 60 V input, improving reliability in fault-prone industrial environments.
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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.
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