LTC7801EFE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LTC7801EFE#PBF is an Analog Devices high-voltage synchronous step-down DC/DC controller supporting 4 V to 140 V input range with current-mode PWM control and low quiescent current in a 24-lead SO package. It drives external N-channel MOSFETs to deliver regulated output voltages for industrial, automotive, and high-voltage telecom power supply designs.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- LTC7801EFE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.0400(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC7801EFE#PBF?
- Wide 4 V to 140 V input range with low quiescent current for high-voltage industrial and automotive step-down converters
- Current-mode PWM control with synchronous rectification drive for improved efficiency and fast transient response
- 24-lead SO package integrating gate drive, protection, and compensation in a compact controller for external MOSFET designs
What is LTC7801EFE#PBF used for?
The LTC7801EFE#PBF is designed for high-voltage DC-DC step-down conversion in industrial automation, 48 V automotive systems, and telecom infrastructure equipment where input voltages can reach 140 V. Its current-mode control topology simplifies loop compensation and improves line and load regulation in designs converting high bus voltages to 3.3 V, 5 V, or 12 V system rails. The low quiescent current mode supports standby power reduction in battery-backed systems with intermittent load profiles.
What are the specifications of LTC7801EFE#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1771 |
| YTEOL | 10 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 140V |
| Input Voltage-Min | 4V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G24 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Voltage-Max | 60V |
| Output Voltage-Min | 0.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP24,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 585kHz |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| 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 |
Where can I find the LTC7801EFE#PBF datasheet?
LTC7801EFE#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC7801EFE#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the LTC7801EFE#PBF support, and which high-voltage bus architectures can it directly regulate?
The LTC7801EFE#PBF accepts input voltages from 4 V to 140 V, making it directly applicable to 12 V, 24 V, 48 V, and 100 V bus architectures common in industrial motor drives, telecom rectifiers, and automotive 48 V mild-hybrid systems without requiring a pre-regulator or bus voltage translation stage.
How does current-mode PWM control in the LTC7801EFE#PBF benefit high-current power supply designs compared to voltage-mode control?
Current-mode PWM control in the LTC7801EFE#PBF provides inherent cycle-by-cycle current limiting, automatic input voltage feed-forward, and simpler single-pole loop compensation compared to voltage-mode controllers. At output currents above 10 A with external power MOSFETs, this simplifies achieving stable phase margin across wide input voltage ranges from 4 V to 140 V.
Can the LTC7801EFE#PBF be used in a 48 V automotive system, and what external components does it require for a complete converter?
Yes, the LTC7801EFE#PBF is well suited for 48 V automotive step-down conversion. A complete converter requires 2 external N-channel power MOSFETs rated above 60 V, an inductor sized for the desired switching frequency typically between 100 kHz and 500 kHz, input and output capacitors, and a bootstrap capacitor for the high-side gate driver, all of which are standard discrete components.
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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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| 1+ | $13.0900 | $13.09 |
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